Merge commit 'origin/master' into next

Conflicts:
	include/linux/kvm.h

80 files changed, 2571 insertions, 1721 deletions

diff --git a/fs/9p/cache.c b/fs/9p/cache.c
index 51c94e26a34..e777961939f 100644
--- a/fs/9p/cache.c
+++ b/fs/9p/cache.c
@@ -343,18 +343,7 @@ int __v9fs_fscache_release_page(struct page *page, gfp_t gfp)
 
 	BUG_ON(!vcookie->fscache);
 
-	if (PageFsCache(page)) {
-		if (fscache_check_page_write(vcookie->fscache, page)) {
-			if (!(gfp & __GFP_WAIT))
-				return 0;
-			fscache_wait_on_page_write(vcookie->fscache, page);
-		}
-
-		fscache_uncache_page(vcookie->fscache, page);
-		ClearPageFsCache(page);
-	}
-
-	return 1;
+	return fscache_maybe_release_page(vcookie->fscache, page, gfp);
 }
 
 void __v9fs_fscache_invalidate_page(struct page *page)
@@ -368,7 +357,6 @@ void __v9fs_fscache_invalidate_page(struct page *page)
 		fscache_wait_on_page_write(vcookie->fscache, page);
 		BUG_ON(!PageLocked(page));
 		fscache_uncache_page(vcookie->fscache, page);
-		ClearPageFsCache(page);
 	}
 }
 
diff --git a/fs/afs/file.c b/fs/afs/file.c
index 681c2a7b013..39b301662f2 100644
--- a/fs/afs/file.c
+++ b/fs/afs/file.c
@@ -315,7 +315,6 @@ static void afs_invalidatepage(struct page *page, unsigned long offset)
 			struct afs_vnode *vnode = AFS_FS_I(page->mapping->host);
 			fscache_wait_on_page_write(vnode->cache, page);
 			fscache_uncache_page(vnode->cache, page);
-			ClearPageFsCache(page);
 		}
 #endif
 
@@ -349,17 +348,9 @@ static int afs_releasepage(struct page *page, gfp_t gfp_flags)
 	/* deny if page is being written to the cache and the caller hasn't
 	 * elected to wait */
 #ifdef CONFIG_AFS_FSCACHE
-	if (PageFsCache(page)) {
-		if (fscache_check_page_write(vnode->cache, page)) {
-			if (!(gfp_flags & __GFP_WAIT)) {
-				_leave(" = F [cache busy]");
-				return 0;
-			}
-			fscache_wait_on_page_write(vnode->cache, page);
-		}
-
-		fscache_uncache_page(vnode->cache, page);
-		ClearPageFsCache(page);
+	if (!fscache_maybe_release_page(vnode->cache, page, gfp_flags)) {
+		_leave(" = F [cache busy]");
+		return 0;
 	}
 #endif
 
diff --git a/fs/aio.c b/fs/aio.c
index 02a2c934057..c30dfc00610 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -15,6 +15,7 @@
 #include <linux/aio_abi.h>
 #include <linux/module.h>
 #include <linux/syscalls.h>
+#include <linux/backing-dev.h>
 #include <linux/uio.h>
 
 #define DEBUG 0
@@ -32,6 +33,9 @@
 #include <linux/workqueue.h>
 #include <linux/security.h>
 #include <linux/eventfd.h>
+#include <linux/blkdev.h>
+#include <linux/mempool.h>
+#include <linux/hash.h>
 
 #include <asm/kmap_types.h>
 #include <asm/uaccess.h>
@@ -60,6 +64,14 @@ static DECLARE_WORK(fput_work, aio_fput_routine);
 static DEFINE_SPINLOCK(fput_lock);
 static LIST_HEAD(fput_head);
 
+#define AIO_BATCH_HASH_BITS	3 /* allocated on-stack, so don't go crazy */
+#define AIO_BATCH_HASH_SIZE	(1 << AIO_BATCH_HASH_BITS)
+struct aio_batch_entry {
+	struct hlist_node list;
+	struct address_space *mapping;
+};
+mempool_t *abe_pool;
+
 static void aio_kick_handler(struct work_struct *);
 static void aio_queue_work(struct kioctx *);
 
@@ -73,6 +85,8 @@ static int __init aio_setup(void)
 	kioctx_cachep = KMEM_CACHE(kioctx,SLAB_HWCACHE_ALIGN|SLAB_PANIC);
 
 	aio_wq = create_workqueue("aio");
+	abe_pool = mempool_create_kmalloc_pool(1, sizeof(struct aio_batch_entry));
+	BUG_ON(!abe_pool);
 
 	pr_debug("aio_setup: sizeof(struct page) = %d\n", (int)sizeof(struct page));
 
@@ -1531,8 +1545,44 @@ static int aio_wake_function(wait_queue_t *wait, unsigned mode,
 	return 1;
 }
 
+static void aio_batch_add(struct address_space *mapping,
+			  struct hlist_head *batch_hash)
+{
+	struct aio_batch_entry *abe;
+	struct hlist_node *pos;
+	unsigned bucket;
+
+	bucket = hash_ptr(mapping, AIO_BATCH_HASH_BITS);
+	hlist_for_each_entry(abe, pos, &batch_hash[bucket], list) {
+		if (abe->mapping == mapping)
+			return;
+	}
+
+	abe = mempool_alloc(abe_pool, GFP_KERNEL);
+	BUG_ON(!igrab(mapping->host));
+	abe->mapping = mapping;
+	hlist_add_head(&abe->list, &batch_hash[bucket]);
+	return;
+}
+
+static void aio_batch_free(struct hlist_head *batch_hash)
+{
+	struct aio_batch_entry *abe;
+	struct hlist_node *pos, *n;
+	int i;
+
+	for (i = 0; i < AIO_BATCH_HASH_SIZE; i++) {
+		hlist_for_each_entry_safe(abe, pos, n, &batch_hash[i], list) {
+			blk_run_address_space(abe->mapping);
+			iput(abe->mapping->host);
+			hlist_del(&abe->list);
+			mempool_free(abe, abe_pool);
+		}
+	}
+}
+
 static int io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb,
-			 struct iocb *iocb)
+			 struct iocb *iocb, struct hlist_head *batch_hash)
 {
 	struct kiocb *req;
 	struct file *file;
@@ -1608,6 +1658,12 @@ static int io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb,
 			;
 	}
 	spin_unlock_irq(&ctx->ctx_lock);
+	if (req->ki_opcode == IOCB_CMD_PREAD ||
+	    req->ki_opcode == IOCB_CMD_PREADV ||
+	    req->ki_opcode == IOCB_CMD_PWRITE ||
+	    req->ki_opcode == IOCB_CMD_PWRITEV)
+		aio_batch_add(file->f_mapping, batch_hash);
+
 	aio_put_req(req);	/* drop extra ref to req */
 	return 0;
 
@@ -1635,6 +1691,7 @@ SYSCALL_DEFINE3(io_submit, aio_context_t, ctx_id, long, nr,
 	struct kioctx *ctx;
 	long ret = 0;
 	int i;
+	struct hlist_head batch_hash[AIO_BATCH_HASH_SIZE] = { { 0, }, };
 
 	if (unlikely(nr < 0))
 		return -EINVAL;
@@ -1666,10 +1723,11 @@ SYSCALL_DEFINE3(io_submit, aio_context_t, ctx_id, long, nr,
 			break;
 		}
 
-		ret = io_submit_one(ctx, user_iocb, &tmp);
+		ret = io_submit_one(ctx, user_iocb, &tmp, batch_hash);
 		if (ret)
 			break;
 	}
+	aio_batch_free(batch_hash);
 
 	put_ioctx(ctx);
 	return i ? i : ret;
diff --git a/fs/bio.c b/fs/bio.c
index 12da5db8682..e23a63f4f7d 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -1393,6 +1393,18 @@ void bio_check_pages_dirty(struct bio *bio)
 	}
 }
 
+#if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
+void bio_flush_dcache_pages(struct bio *bi)
+{
+	int i;
+	struct bio_vec *bvec;
+
+	bio_for_each_segment(bvec, bi, i)
+		flush_dcache_page(bvec->bv_page);
+}
+EXPORT_SYMBOL(bio_flush_dcache_pages);
+#endif
+
 /**
  * bio_endio - end I/O on a bio
  * @bio:	bio
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 8bed0557d88..73d6a735b8f 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -405,7 +405,17 @@ static loff_t block_llseek(struct file *file, loff_t offset, int origin)
  
 static int block_fsync(struct file *filp, struct dentry *dentry, int datasync)
 {
-	return sync_blockdev(I_BDEV(filp->f_mapping->host));
+	struct block_device *bdev = I_BDEV(filp->f_mapping->host);
+	int error;
+
+	error = sync_blockdev(bdev);
+	if (error)
+		return error;
+	
+	error = blkdev_issue_flush(bdev, NULL);
+	if (error == -EOPNOTSUPP)
+		error = 0;
+	return error;
 }
 
 /*
diff --git a/fs/cachefiles/interface.c b/fs/cachefiles/interface.c
index 431accd475a..27089311fbe 100644
--- a/fs/cachefiles/interface.c
+++ b/fs/cachefiles/interface.c
@@ -114,8 +114,9 @@ nomem_lookup_data:
 
 /*
  * attempt to look up the nominated node in this cache
+ * - return -ETIMEDOUT to be scheduled again
  */
-static void cachefiles_lookup_object(struct fscache_object *_object)
+static int cachefiles_lookup_object(struct fscache_object *_object)
 {
 	struct cachefiles_lookup_data *lookup_data;
 	struct cachefiles_object *parent, *object;
@@ -145,13 +146,15 @@ static void cachefiles_lookup_object(struct fscache_object *_object)
 	    object->fscache.cookie->def->type != FSCACHE_COOKIE_TYPE_INDEX)
 		cachefiles_attr_changed(&object->fscache);
 
-	if (ret < 0) {
-		printk(KERN_WARNING "CacheFiles: Lookup failed error %d\n",
-		       ret);
+	if (ret < 0 && ret != -ETIMEDOUT) {
+		if (ret != -ENOBUFS)
+			printk(KERN_WARNING
+			       "CacheFiles: Lookup failed error %d\n", ret);
 		fscache_object_lookup_error(&object->fscache);
 	}
 
 	_leave(" [%d]", ret);
+	return ret;
 }
 
 /*
@@ -331,6 +334,7 @@ static void cachefiles_put_object(struct fscache_object *_object)
 		}
 
 		cache = object->fscache.cache;
+		fscache_object_destroy(&object->fscache);
 		kmem_cache_free(cachefiles_object_jar, object);
 		fscache_object_destroyed(cache);
 	}
@@ -403,12 +407,26 @@ static int cachefiles_attr_changed(struct fscache_object *_object)
 	if (oi_size == ni_size)
 		return 0;
 
-	newattrs.ia_size = ni_size;
-	newattrs.ia_valid = ATTR_SIZE;
-
 	cachefiles_begin_secure(cache, &saved_cred);
 	mutex_lock(&object->backer->d_inode->i_mutex);
+
+	/* if there's an extension to a partial page at the end of the backing
+	 * file, we need to discard the partial page so that we pick up new
+	 * data after it */
+	if (oi_size & ~PAGE_MASK && ni_size > oi_size) {
+		_debug("discard tail %llx", oi_size);
+		newattrs.ia_valid = ATTR_SIZE;
+		newattrs.ia_size = oi_size & PAGE_MASK;
+		ret = notify_change(object->backer, &newattrs);
+		if (ret < 0)
+			goto truncate_failed;
+	}
+
+	newattrs.ia_valid = ATTR_SIZE;
+	newattrs.ia_size = ni_size;
 	ret = notify_change(object->backer, &newattrs);
+
+truncate_failed:
 	mutex_unlock(&object->backer->d_inode->i_mutex);
 	cachefiles_end_secure(cache, saved_cred);
 
diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c
index 4ce818ae39e..14ac4806e29 100644
--- a/fs/cachefiles/namei.c
+++ b/fs/cachefiles/namei.c
@@ -21,17 +21,81 @@
 #include <linux/security.h>
 #include "internal.h"
 
-static int cachefiles_wait_bit(void *flags)
+#define CACHEFILES_KEYBUF_SIZE 512
+
+/*
+ * dump debugging info about an object
+ */
+static noinline
+void __cachefiles_printk_object(struct cachefiles_object *object,
+				const char *prefix,
+				u8 *keybuf)
 {
-	schedule();
-	return 0;
+	struct fscache_cookie *cookie;
+	unsigned keylen, loop;
+
+	printk(KERN_ERR "%sobject: OBJ%x\n",
+	       prefix, object->fscache.debug_id);
+	printk(KERN_ERR "%sobjstate=%s fl=%lx swfl=%lx ev=%lx[%lx]\n",
+	       prefix, fscache_object_states[object->fscache.state],
+	       object->fscache.flags, object->fscache.work.flags,
+	       object->fscache.events,
+	       object->fscache.event_mask & FSCACHE_OBJECT_EVENTS_MASK);
+	printk(KERN_ERR "%sops=%u inp=%u exc=%u\n",
+	       prefix, object->fscache.n_ops, object->fscache.n_in_progress,
+	       object->fscache.n_exclusive);
+	printk(KERN_ERR "%sparent=%p\n",
+	       prefix, object->fscache.parent);
+
+	spin_lock(&object->fscache.lock);
+	cookie = object->fscache.cookie;
+	if (cookie) {
+		printk(KERN_ERR "%scookie=%p [pr=%p nd=%p fl=%lx]\n",
+		       prefix,
+		       object->fscache.cookie,
+		       object->fscache.cookie->parent,
+		       object->fscache.cookie->netfs_data,
+		       object->fscache.cookie->flags);
+		if (keybuf)
+			keylen = cookie->def->get_key(cookie->netfs_data, keybuf,
+						      CACHEFILES_KEYBUF_SIZE);
+		else
+			keylen = 0;
+	} else {
+		printk(KERN_ERR "%scookie=NULL\n", prefix);
+		keylen = 0;
+	}
+	spin_unlock(&object->fscache.lock);
+
+	if (keylen) {
+		printk(KERN_ERR "%skey=[%u] '", prefix, keylen);
+		for (loop = 0; loop < keylen; loop++)
+			printk("%02x", keybuf[loop]);
+		printk("'\n");
+	}
+}
+
+/*
+ * dump debugging info about a pair of objects
+ */
+static noinline void cachefiles_printk_object(struct cachefiles_object *object,
+					      struct cachefiles_object *xobject)
+{
+	u8 *keybuf;
+
+	keybuf = kmalloc(CACHEFILES_KEYBUF_SIZE, GFP_NOIO);
+	if (object)
+		__cachefiles_printk_object(object, "", keybuf);
+	if (xobject)
+		__cachefiles_printk_object(xobject, "x", keybuf);
+	kfree(keybuf);
 }
 
 /*
  * record the fact that an object is now active
  */
-static void cachefiles_mark_object_active(struct cachefiles_cache *cache,
-					  struct cachefiles_object *object)
+static int cachefiles_mark_object_active(struct cachefiles_cache *cache,
+					 struct cachefiles_object *object)
 {
 	struct cachefiles_object *xobject;
 	struct rb_node **_p, *_parent = NULL;
@@ -42,8 +106,11 @@ static void cachefiles_mark_object_active(struct cachefiles_cache *cache,
 try_again:
 	write_lock(&cache->active_lock);
 
-	if (test_and_set_bit(CACHEFILES_OBJECT_ACTIVE, &object->flags))
+	if (test_and_set_bit(CACHEFILES_OBJECT_ACTIVE, &object->flags)) {
+		printk(KERN_ERR "CacheFiles: Error: Object already active\n");
+		cachefiles_printk_object(object, NULL);
 		BUG();
+	}
 
 	dentry = object->dentry;
 	_p = &cache->active_nodes.rb_node;
@@ -66,8 +133,8 @@ try_again:
 	rb_insert_color(&object->active_node, &cache->active_nodes);
 
 	write_unlock(&cache->active_lock);
-	_leave("");
-	return;
+	_leave(" = 0");
+	return 0;
 
 	/* an old object from a previous incarnation is hogging the slot - we
 	 * need to wait for it to be destroyed */
@@ -76,44 +143,70 @@ wait_for_old_object:
 		printk(KERN_ERR "\n");
 		printk(KERN_ERR "CacheFiles: Error:"
 		       " Unexpected object collision\n");
-		printk(KERN_ERR "xobject: OBJ%x\n",
-		       xobject->fscache.debug_id);
-		printk(KERN_ERR "xobjstate=%s\n",
-		       fscache_object_states[xobject->fscache.state]);
-		printk(KERN_ERR "xobjflags=%lx\n", xobject->fscache.flags);
-		printk(KERN_ERR "xobjevent=%lx [%lx]\n",
-		       xobject->fscache.events, xobject->fscache.event_mask);
-		printk(KERN_ERR "xops=%u inp=%u exc=%u\n",
-		       xobject->fscache.n_ops, xobject->fscache.n_in_progress,
-		       xobject->fscache.n_exclusive);
-		printk(KERN_ERR "xcookie=%p [pr=%p nd=%p fl=%lx]\n",
-		       xobject->fscache.cookie,
-		       xobject->fscache.cookie->parent,
-		       xobject->fscache.cookie->netfs_data,
-		       xobject->fscache.cookie->flags);
-		printk(KERN_ERR "xparent=%p\n",
-		       xobject->fscache.parent);
-		printk(KERN_ERR "object: OBJ%x\n",
-		       object->fscache.debug_id);
-		printk(KERN_ERR "cookie=%p [pr=%p nd=%p fl=%lx]\n",
-		       object->fscache.cookie,
-		       object->fscache.cookie->parent,
-		       object->fscache.cookie->netfs_data,
-		       object->fscache.cookie->flags);
-		printk(KERN_ERR "parent=%p\n",
-		       object->fscache.parent);
+		cachefiles_printk_object(object, xobject);
 		BUG();
 	}
 	atomic_inc(&xobject->usage);
 	write_unlock(&cache->active_lock);
 
-	_debug(">>> wait");
-	wait_on_bit(&xobject->flags, CACHEFILES_OBJECT_ACTIVE,
-		    cachefiles_wait_bit, TASK_UNINTERRUPTIBLE);
-	_debug("<<< waited");
+	if (test_bit(CACHEFILES_OBJECT_ACTIVE, &xobject->flags)) {
+		wait_queue_head_t *wq;
+
+		signed long timeout = 60 * HZ;
+		wait_queue_t wait;
+		bool requeue;
+
+		/* if the object we're waiting for is queued for processing,
+		 * then just put ourselves on the queue behind it */
+		if (slow_work_is_queued(&xobject->fscache.work)) {
+			_debug("queue OBJ%x behind OBJ%x immediately",
+			       object->fscache.debug_id,
+			       xobject->fscache.debug_id);
+			goto requeue;
+		}
+
+		/* otherwise we sleep until either the object we're waiting for
+		 * is done, or the slow-work facility wants the thread back to
+		 * do other work */
+		wq = bit_waitqueue(&xobject->flags, CACHEFILES_OBJECT_ACTIVE);
+		init_wait(&wait);
+		requeue = false;
+		do {
+			prepare_to_wait(wq, &wait, TASK_UNINTERRUPTIBLE);
+			if (!test_bit(CACHEFILES_OBJECT_ACTIVE, &xobject->flags))
+				break;
+			requeue = slow_work_sleep_till_thread_needed(
+				&object->fscache.work, &timeout);
+		} while (timeout > 0 && !requeue);
+		finish_wait(wq, &wait);
+
+		if (requeue &&
+		    test_bit(CACHEFILES_OBJECT_ACTIVE, &xobject->flags)) {
+			_debug("queue OBJ%x behind OBJ%x after wait",
+			       object->fscache.debug_id,
+			       xobject->fscache.debug_id);
+			goto requeue;
+		}
+
+		if (timeout <= 0) {
+			printk(KERN_ERR "\n");
+			printk(KERN_ERR "CacheFiles: Error: Overlong"
+			       " wait for old active object to go away\n");
+			cachefiles_printk_object(object, xobject);
+			goto requeue;
+		}
+	}
+
+	ASSERT(!test_bit(CACHEFILES_OBJECT_ACTIVE, &xobject->flags));
 
 	cache->cache.ops->put_object(&xobject->fscache);
 	goto try_again;
+
+requeue:
+	clear_bit(CACHEFILES_OBJECT_ACTIVE, &object->flags);
+	cache->cache.ops->put_object(&xobject->fscache);
+	_leave(" = -ETIMEDOUT");
+	return -ETIMEDOUT;
 }
 
 /*
@@ -254,7 +347,7 @@ int cachefiles_delete_object(struct cachefiles_cache *cache,
 
 	dir = dget_parent(object->dentry);
 
-	mutex_lock(&dir->d_inode->i_mutex);
+	mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_PARENT);
 	ret = cachefiles_bury_object(cache, dir, object->dentry);
 
 	dput(dir);
@@ -307,7 +400,7 @@ lookup_again:
 	/* search the current directory for the element name */
 	_debug("lookup '%s'", name);
 
-	mutex_lock(&dir->d_inode->i_mutex);
+	mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_PARENT);
 
 	start = jiffies;
 	next = lookup_one_len(name, dir, nlen);
@@ -418,12 +511,15 @@ lookup_again:
 	}
 
 	/* note that we're now using this object */
-	cachefiles_mark_object_active(cache, object);
+	ret = cachefiles_mark_object_active(cache, object);
 
 	mutex_unlock(&dir->d_inode->i_mutex);
 	dput(dir);
 	dir = NULL;
 
+	if (ret == -ETIMEDOUT)
+		goto mark_active_timed_out;
+
 	_debug("=== OBTAINED_OBJECT ===");
 
 	if (object->new) {
@@ -467,6 +563,10 @@ create_error:
 		cachefiles_io_error(cache, "Create/mkdir failed");
 	goto error;
 
+mark_active_timed_out:
+	_debug("mark active timed out");
+	goto release_dentry;
+
 check_error:
 	_debug("check error %d", ret);
 	write_lock(&cache->active_lock);
@@ -474,7 +574,7 @@ check_error:
 	clear_bit(CACHEFILES_OBJECT_ACTIVE, &object->flags);
 	wake_up_bit(&object->flags, CACHEFILES_OBJECT_ACTIVE);
 	write_unlock(&cache->active_lock);
-
+release_dentry:
 	dput(object->dentry);
 	object->dentry = NULL;
 	goto error_out;
@@ -495,9 +595,6 @@ error:
 error_out2:
 	dput(dir);
 error_out:
-	if (ret == -ENOSPC)
-		ret = -ENOBUFS;
-
 	_leave(" = error %d", -ret);
 	return ret;
 }
diff --git a/fs/cachefiles/rdwr.c b/fs/cachefiles/rdwr.c
index a69787e7dd9..a6c8c6fe8df 100644
--- a/fs/cachefiles/rdwr.c
+++ b/fs/cachefiles/rdwr.c
@@ -11,6 +11,7 @@
 
 #include <linux/mount.h>
 #include <linux/file.h>
+#include <linux/ima.h>
 #include "internal.h"
 
 /*
@@ -40,8 +41,10 @@ static int cachefiles_read_waiter(wait_queue_t *wait, unsigned mode,
 
 	_debug("--- monitor %p %lx ---", page, page->flags);
 
-	if (!PageUptodate(page) && !PageError(page))
-		dump_stack();
+	if (!PageUptodate(page) && !PageError(page)) {
+		/* unlocked, not uptodate and not erronous? */
+		_debug("page probably truncated");
+	}
 
 	/* remove from the waitqueue */
 	list_del(&wait->task_list);
@@ -61,6 +64,84 @@ static int cachefiles_read_waiter(wait_queue_t *wait, unsigned mode,
 }
 
 /*
+ * handle a probably truncated page
+ * - check to see if the page is still relevant and reissue the read if
+ *   possible
+ * - return -EIO on error, -ENODATA if the page is gone, -EINPROGRESS if we
+ *   must wait again and 0 if successful
+ */
+static int cachefiles_read_reissue(struct cachefiles_object *object,
+				   struct cachefiles_one_read *monitor)
+{
+	struct address_space *bmapping = object->backer->d_inode->i_mapping;
+	struct page *backpage = monitor->back_page, *backpage2;
+	int ret;
+
+	kenter("{ino=%lx},{%lx,%lx}",
+	       object->backer->d_inode->i_ino,
+	       backpage->index, backpage->flags);
+
+	/* skip if the page was truncated away completely */
+	if (backpage->mapping != bmapping) {
+		kleave(" = -ENODATA [mapping]");
+		return -ENODATA;
+	}
+
+	backpage2 = find_get_page(bmapping, backpage->index);
+	if (!backpage2) {
+		kleave(" = -ENODATA [gone]");
+		return -ENODATA;
+	}
+
+	if (backpage != backpage2) {
+		put_page(backpage2);
+		kleave(" = -ENODATA [different]");
+		return -ENODATA;
+	}
+
+	/* the page is still there and we already have a ref on it, so we don't
+	 * need a second */
+	put_page(backpage2);
+
+	INIT_LIST_HEAD(&monitor->op_link);
+	add_page_wait_queue(backpage, &monitor->monitor);
+
+	if (trylock_page(backpage)) {
+		ret = -EIO;
+		if (PageError(backpage))
+			goto unlock_discard;
+		ret = 0;
+		if (PageUptodate(backpage))
+			goto unlock_discard;
+
+		kdebug("reissue read");
+		ret = bmapping->a_ops->readpage(NULL, backpage);
+		if (ret < 0)
+			goto unlock_discard;
+	}
+
+	/* but the page may have been read before the monitor was installed, so
+	 * the monitor may miss the event - so we have to ensure that we do get
+	 * one in such a case */
+	if (trylock_page(backpage)) {
+		_debug("jumpstart %p {%lx}", backpage, backpage->flags);
+		unlock_page(backpage);
+	}
+
+	/* it'll reappear on the todo list */
+	kleave(" = -EINPROGRESS");
+	return -EINPROGRESS;
+
+unlock_discard:
+	unlock_page(backpage);
+	spin_lock_irq(&object->work_lock);
+	list_del(&monitor->op_link);
+	spin_unlock_irq(&object->work_lock);
+	kleave(" = %d", ret);
+	return ret;
+}
+
+/*
  * copy data from backing pages to netfs pages to complete a read operation
  * - driven by FS-Cache's thread pool
  */
@@ -92,20 +173,26 @@ static void cachefiles_read_copier(struct fscache_operation *_op)
 
 		_debug("- copy {%lu}", monitor->back_page->index);
 
-		error = -EIO;
+	recheck:
 		if (PageUptodate(monitor->back_page)) {
 			copy_highpage(monitor->netfs_page, monitor->back_page);
 
 			pagevec_add(&pagevec, monitor->netfs_page);
 			fscache_mark_pages_cached(monitor->op, &pagevec);
 			error = 0;
-		}
-
-		if (error)
+		} else if (!PageError(monitor->back_page)) {
+			/* the page has probably been truncated */
+			error = cachefiles_read_reissue(object, monitor);
+			if (error == -EINPROGRESS)
+				goto next;
+			goto recheck;
+		} else {
 			cachefiles_io_error_obj(
 				object,
 				"Readpage failed on backing file %lx",
 				(unsigned long) monitor->back_page->flags);
+			error = -EIO;
+		}
 
 		page_cache_release(monitor->back_page);
 
@@ -114,6 +201,7 @@ static void cachefiles_read_copier(struct fscache_operation *_op)
 		fscache_put_retrieval(op);
 		kfree(monitor);
 
+	next:
 		/* let the thread pool have some air occasionally */
 		max--;
 		if (max < 0 || need_resched()) {
@@ -333,7 +421,8 @@ int cachefiles_read_or_alloc_page(struct fscache_retrieval *op,
 
 	shift = PAGE_SHIFT - inode->i_sb->s_blocksize_bits;
 
-	op->op.flags = FSCACHE_OP_FAST;
+	op->op.flags &= FSCACHE_OP_KEEP_FLAGS;
+	op->op.flags |= FSCACHE_OP_FAST;
 	op->op.processor = cachefiles_read_copier;
 
 	pagevec_init(&pagevec, 0);
@@ -639,7 +728,8 @@ int cachefiles_read_or_alloc_pages(struct fscache_retrieval *op,
 
 	pagevec_init(&pagevec, 0);
 
-	op->op.flags = FSCACHE_OP_FAST;
+	op->op.flags &= FSCACHE_OP_KEEP_FLAGS;
+	op->op.flags |= FSCACHE_OP_FAST;
 	op->op.processor = cachefiles_read_copier;
 
 	INIT_LIST_HEAD(&backpages);
@@ -801,7 +891,8 @@ int cachefiles_write_page(struct fscache_storage *op, struct page *page)
 	struct cachefiles_cache *cache;
 	mm_segment_t old_fs;
 	struct file *file;
-	loff_t pos;
+	loff_t pos, eof;
+	size_t len;
 	void *data;
 	int ret;
 
@@ -832,18 +923,33 @@ int cachefiles_write_page(struct fscache_storage *op, struct page *page)
 	if (IS_ERR(file)) {
 		ret = PTR_ERR(file);
 	} else {
+		ima_counts_get(file);
 		ret = -EIO;
 		if (file->f_op->write) {
 			pos = (loff_t) page->index << PAGE_SHIFT;
+
+			/* we mustn't write more data than we have, so we have
+			 * to beware of a partial page at EOF */
+			eof = object->fscache.store_limit_l;
+			len = PAGE_SIZE;
+			if (eof & ~PAGE_MASK) {
+				ASSERTCMP(pos, <, eof);
+				if (eof - pos < PAGE_SIZE) {
+					_debug("cut short %llx to %llx",
+					       pos, eof);
+					len = eof - pos;
+					ASSERTCMP(pos + len, ==, eof);
+				}
+			}
+
 			data = kmap(page);
 			old_fs = get_fs();
 			set_fs(KERNEL_DS);
 			ret = file->f_op->write(
-				file, (const void __user *) data, PAGE_SIZE,
-				&pos);
+				file, (const void __user *) data, len, &pos);
 			set_fs(old_fs);
 			kunmap(page);
-			if (ret != PAGE_SIZE)
+			if (ret != len)
 				ret = -EIO;
 		}
 		fput(file);
diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
index 145540a316a..094ea65afc8 100644
--- a/fs/cifs/CHANGES
+++ b/fs/cifs/CHANGES
@@ -1,3 +1,12 @@
+Version 1.61
+------------
+Fix append problem to Samba servers (files opened with O_APPEND could
+have duplicated data). Fix oops in cifs_lookup. Workaround problem
+mounting to OS/400 Netserve. Fix oops in cifs_get_tcp_session.
+Disable use of server inode numbers when server only
+partially supports them (e.g. for one server querying inode numbers on
+FindFirst fails but QPathInfo queries works).
+
 Version 1.60
 -------------
 Fix memory leak in reconnect.  Fix oops in DFS mount error path.
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 9a5e4f5f312..29f1da761bb 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -1037,7 +1037,7 @@ init_cifs(void)
 	if (rc)
 		goto out_unregister_key_type;
 #endif
-	rc = slow_work_register_user();
+	rc = slow_work_register_user(THIS_MODULE);
 	if (rc)
 		goto out_unregister_resolver_key;
 
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 627a60a6c1b..1f42f772865 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -214,8 +214,6 @@ int cifs_posix_open(char *full_path, struct inode **pinode,
 		posix_flags |= SMB_O_EXCL;
 	if (oflags & O_TRUNC)
 		posix_flags |= SMB_O_TRUNC;
-	if (oflags & O_APPEND)
-		posix_flags |= SMB_O_APPEND;
 	if (oflags & O_SYNC)
 		posix_flags |= SMB_O_SYNC;
 	if (oflags & O_DIRECTORY)
@@ -643,9 +641,9 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
 	 * O_EXCL: optimize away the lookup, but don't hash the dentry. Let
 	 * the VFS handle the create.
 	 */
-	if (nd->flags & LOOKUP_EXCL) {
+	if (nd && (nd->flags & LOOKUP_EXCL)) {
 		d_instantiate(direntry, NULL);
-		return 0;
+		return NULL;
 	}
 
 	/* can not grab the rename sem here since it would
@@ -675,7 +673,7 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
 	 * reduction in network traffic in the other paths.
 	 */
 	if (pTcon->unix_ext) {
-		if (!(nd->flags & (LOOKUP_PARENT | LOOKUP_DIRECTORY)) &&
+		if (nd && !(nd->flags & (LOOKUP_PARENT | LOOKUP_DIRECTORY)) &&
 		     (nd->flags & LOOKUP_OPEN) && !pTcon->broken_posix_open &&
 		     (nd->intent.open.flags & O_CREAT)) {
 			rc = cifs_posix_open(full_path, &newInode, nd->path.mnt,
diff --git a/fs/coda/sysctl.c b/fs/coda/sysctl.c
index 43c96ce2961..c6405ce3c50 100644
--- a/fs/coda/sysctl.c
+++ b/fs/coda/sysctl.c
@@ -17,28 +17,25 @@ static struct ctl_table_header *fs_table_header;
 
 static ctl_table coda_table[] = {
 	{
-		.ctl_name	= CTL_UNNUMBERED,
 		.procname	= "timeout",
 		.data		= &coda_timeout,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec
+		.proc_handler	= proc_dointvec
 	},
 	{
-		.ctl_name	= CTL_UNNUMBERED,
 		.procname	= "hard",
 		.data		= &coda_hard,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec
+		.proc_handler	= proc_dointvec
 	},
 	{
-		.ctl_name	= CTL_UNNUMBERED,
 		.procname	= "fake_statfs",
 		.data		= &coda_fake_statfs,
 		.maxlen		= sizeof(int),
 		.mode		= 0600,
-		.proc_handler	= &proc_dointvec
+		.proc_handler	= proc_dointvec
 	},
 	{}
 };
@@ -46,7 +43,6 @@ static ctl_table coda_table[] = {
 #ifdef CONFIG_SYSCTL
 static ctl_table fs_table[] = {
 	{
-		.ctl_name	= CTL_UNNUMBERED,
 		.procname	= "coda",
 		.mode		= 0555,
 		.child		= coda_table
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index d84e7058c29..229e7221816 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -246,428 +246,6 @@ static int do_video_set_spu_palette(unsigned int fd, unsigned int cmd, unsigned
 	return err;
 }
 
-#ifdef CONFIG_NET
-static int do_siocgstamp(unsigned int fd, unsigned int cmd, unsigned long arg)
-{
-	struct compat_timeval __user *up = compat_ptr(arg);
-	struct timeval ktv;
-	mm_segment_t old_fs = get_fs();
-	int err;
-
-	set_fs(KERNEL_DS);
-	err = sys_ioctl(fd, cmd, (unsigned long)&ktv);
-	set_fs(old_fs);
-	if(!err) {
-		err = put_user(ktv.tv_sec, &up->tv_sec);
-		err |= __put_user(ktv.tv_usec, &up->tv_usec);
-	}
-	return err;
-}
-
-static int do_siocgstampns(unsigned int fd, unsigned int cmd, unsigned long arg)
-{
-	struct compat_timespec __user *up = compat_ptr(arg);
-	struct timespec kts;
-	mm_segment_t old_fs = get_fs();
-	int err;
-
-	set_fs(KERNEL_DS);
-	err = sys_ioctl(fd, cmd, (unsigned long)&kts);
-	set_fs(old_fs);
-	if (!err) {
-		err = put_user(kts.tv_sec, &up->tv_sec);
-		err |= __put_user(kts.tv_nsec, &up->tv_nsec);
-	}
-	return err;
-}
-
-struct ifmap32 {
-	compat_ulong_t mem_start;
-	compat_ulong_t mem_end;
-	unsigned short base_addr;
-	unsigned char irq;
-	unsigned char dma;
-	unsigned char port;
-};
-
-struct ifreq32 {
-#define IFHWADDRLEN     6
-#define IFNAMSIZ        16
-        union {
-                char    ifrn_name[IFNAMSIZ];            /* if name, e.g. "en0" */
-        } ifr_ifrn;
-        union {
-                struct  sockaddr ifru_addr;
-                struct  sockaddr ifru_dstaddr;
-                struct  sockaddr ifru_broadaddr;
-                struct  sockaddr ifru_netmask;
-                struct  sockaddr ifru_hwaddr;
-                short   ifru_flags;
-                compat_int_t     ifru_ivalue;
-                compat_int_t     ifru_mtu;
-                struct  ifmap32 ifru_map;
-                char    ifru_slave[IFNAMSIZ];   /* Just fits the size */
-		char	ifru_newname[IFNAMSIZ];
-                compat_caddr_t ifru_data;
-	    /* XXXX? ifru_settings should be here */
-        } ifr_ifru;
-};
-
-struct ifconf32 {
-        compat_int_t	ifc_len;                        /* size of buffer       */
-        compat_caddr_t  ifcbuf;
-};
-
-static int dev_ifname32(unsigned int fd, unsigned int cmd, unsigned long arg)
-{
-	struct ifreq __user *uifr;
-	int err;
-
-	uifr = compat_alloc_user_space(sizeof(struct ifreq));
-	if (copy_in_user(uifr, compat_ptr(arg), sizeof(struct ifreq32)))
-		return -EFAULT;
-
-	err = sys_ioctl(fd, SIOCGIFNAME, (unsigned long)uifr);
-	if (err)
-		return err;
-
-	if (copy_in_user(compat_ptr(arg), uifr, sizeof(struct ifreq32)))
-		return -EFAULT;
-
-	return 0;
-}
-
-static int dev_ifconf(unsigned int fd, unsigned int cmd, unsigned long arg)
-{
-	struct ifconf32 ifc32;
-	struct ifconf ifc;
-	struct ifconf __user *uifc;
-	struct ifreq32 __user *ifr32;
-	struct ifreq __user *ifr;
-	unsigned int i, j;
-	int err;
-
-	if (copy_from_user(&ifc32, compat_ptr(arg), sizeof(struct ifconf32)))
-		return -EFAULT;
-
-	if (ifc32.ifcbuf == 0) {
-		ifc32.ifc_len = 0;
-		ifc.ifc_len = 0;
-		ifc.ifc_req = NULL;
-		uifc = compat_alloc_user_space(sizeof(struct ifconf));
-	} else {
-		size_t len =((ifc32.ifc_len / sizeof (struct ifreq32)) + 1) *
-			sizeof (struct ifreq);
-		uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
-		ifc.ifc_len = len;
-		ifr = ifc.ifc_req = (void __user *)(uifc + 1);
-		ifr32 = compat_ptr(ifc32.ifcbuf);
-		for (i = 0; i < ifc32.ifc_len; i += sizeof (struct ifreq32)) {
-			if (copy_in_user(ifr, ifr32, sizeof(struct ifreq32)))
-				return -EFAULT;
-			ifr++;
-			ifr32++; 
-		}
-	}
-	if (copy_to_user(uifc, &ifc, sizeof(struct ifconf)))
-		return -EFAULT;
-
-	err = sys_ioctl (fd, SIOCGIFCONF, (unsigned long)uifc);	
-	if (err)
-		return err;
-
-	if (copy_from_user(&ifc, uifc, sizeof(struct ifconf))) 
-		return -EFAULT;
-
-	ifr = ifc.ifc_req;
-	ifr32 = compat_ptr(ifc32.ifcbuf);
-	for (i = 0, j = 0;
-             i + sizeof (struct ifreq32) <= ifc32.ifc_len && j < ifc.ifc_len;
-	     i += sizeof (struct ifreq32), j += sizeof (struct ifreq)) {
-		if (copy_in_user(ifr32, ifr, sizeof (struct ifreq32)))
-			return -EFAULT;
-		ifr32++;
-		ifr++;
-	}
-
-	if (ifc32.ifcbuf == 0) {
-		/* Translate from 64-bit structure multiple to
-		 * a 32-bit one.
-		 */
-		i = ifc.ifc_len;
-		i = ((i / sizeof(struct ifreq)) * sizeof(struct ifreq32));
-		ifc32.ifc_len = i;
-	} else {
-		ifc32.ifc_len = i;
-	}
-	if (copy_to_user(compat_ptr(arg), &ifc32, sizeof(struct ifconf32)))
-		return -EFAULT;
-
-	return 0;
-}
-
-static int ethtool_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
-{
-	struct ifreq __user *ifr;
-	struct ifreq32 __user *ifr32;
-	u32 data;
-	void __user *datap;
-	
-	ifr = compat_alloc_user_space(sizeof(*ifr));
-	ifr32 = compat_ptr(arg);
-
-	if (copy_in_user(&ifr->ifr_name, &ifr32->ifr_name, IFNAMSIZ))
-		return -EFAULT;
-
-	if (get_user(data, &ifr32->ifr_ifru.ifru_data))
-		return -EFAULT;
-
-	datap = compat_ptr(data);
-	if (put_user(datap, &ifr->ifr_ifru.ifru_data))
-		return -EFAULT;
-
-	return sys_ioctl(fd, cmd, (unsigned long) ifr);
-}
-
-static int bond_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
-{
-	struct ifreq kifr;
-	struct ifreq __user *uifr;
-	struct ifreq32 __user *ifr32 = compat_ptr(arg);
-	mm_segment_t old_fs;
-	int err;
-	u32 data;
-	void __user *datap;
-
-	switch (cmd) {
-	case SIOCBONDENSLAVE:
-	case SIOCBONDRELEASE:
-	case SIOCBONDSETHWADDR:
-	case SIOCBONDCHANGEACTIVE:
-		if (copy_from_user(&kifr, ifr32, sizeof(struct ifreq32)))
-			return -EFAULT;
-
-		old_fs = get_fs();
-		set_fs (KERNEL_DS);
-		err = sys_ioctl (fd, cmd, (unsigned long)&kifr);
-		set_fs (old_fs);
-
-		return err;
-	case SIOCBONDSLAVEINFOQUERY:
-	case SIOCBONDINFOQUERY:
-		uifr = compat_alloc_user_space(sizeof(*uifr));
-		if (copy_in_user(&uifr->ifr_name, &ifr32->ifr_name, IFNAMSIZ))
-			return -EFAULT;
-
-		if (get_user(data, &ifr32->ifr_ifru.ifru_data))
-			return -EFAULT;
-
-		datap = compat_ptr(data);
-		if (put_user(datap, &uifr->ifr_ifru.ifru_data))
-			return -EFAULT;
-
-		return sys_ioctl (fd, cmd, (unsigned long)uifr);
-	default:
-		return -EINVAL;
-	};
-}
-
-static int siocdevprivate_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
-{
-	struct ifreq __user *u_ifreq64;
-	struct ifreq32 __user *u_ifreq32 = compat_ptr(arg);
-	char tmp_buf[IFNAMSIZ];
-	void __user *data64;
-	u32 data32;
-
-	if (copy_from_user(&tmp_buf[0], &(u_ifreq32->ifr_ifrn.ifrn_name[0]),
-			   IFNAMSIZ))
-		return -EFAULT;
-	if (__get_user(data32, &u_ifreq32->ifr_ifru.ifru_data))
-		return -EFAULT;
-	data64 = compat_ptr(data32);
-
-	u_ifreq64 = compat_alloc_user_space(sizeof(*u_ifreq64));
-
-	/* Don't check these user accesses, just let that get trapped
-	 * in the ioctl handler instead.
-	 */
-	if (copy_to_user(&u_ifreq64->ifr_ifrn.ifrn_name[0], &tmp_buf[0],
-			 IFNAMSIZ))
-		return -EFAULT;
-	if (__put_user(data64, &u_ifreq64->ifr_ifru.ifru_data))
-		return -EFAULT;
-
-	return sys_ioctl(fd, cmd, (unsigned long) u_ifreq64);
-}
-
-static int dev_ifsioc(unsigned int fd, unsigned int cmd, unsigned long arg)
-{
-	struct ifreq ifr;
-	struct ifreq32 __user *uifr32;
-	struct ifmap32 __user *uifmap32;
-	mm_segment_t old_fs;
-	int err;
-	
-	uifr32 = compat_ptr(arg);
-	uifmap32 = &uifr32->ifr_ifru.ifru_map;
-	switch (cmd) {
-	case SIOCSIFMAP:
-		err = copy_from_user(&ifr, uifr32, sizeof(ifr.ifr_name));
-		err |= __get_user(ifr.ifr_map.mem_start, &uifmap32->mem_start);
-		err |= __get_user(ifr.ifr_map.mem_end, &uifmap32->mem_end);
-		err |= __get_user(ifr.ifr_map.base_addr, &uifmap32->base_addr);
-		err |= __get_user(ifr.ifr_map.irq, &uifmap32->irq);
-		err |= __get_user(ifr.ifr_map.dma, &uifmap32->dma);
-		err |= __get_user(ifr.ifr_map.port, &uifmap32->port);
-		if (err)
-			return -EFAULT;
-		break;
-	case SIOCSHWTSTAMP:
-		if (copy_from_user(&ifr, uifr32, sizeof(*uifr32)))
-			return -EFAULT;
-		ifr.ifr_data = compat_ptr(uifr32->ifr_ifru.ifru_data);
-		break;
-	default:
-		if (copy_from_user(&ifr, uifr32, sizeof(*uifr32)))
-			return -EFAULT;
-		break;
-	}
-	old_fs = get_fs();
-	set_fs (KERNEL_DS);
-	err = sys_ioctl (fd, cmd, (unsigned long)&ifr);
-	set_fs (old_fs);
-	if (!err) {
-		switch (cmd) {
-		/* TUNSETIFF is defined as _IOW, it should be _IORW
-		 * as the data is copied back to user space, but that
-		 * cannot be fixed without breaking all existing apps.
-		 */
-		case TUNSETIFF:
-		case TUNGETIFF:
-		case SIOCGIFFLAGS:
-		case SIOCGIFMETRIC:
-		case SIOCGIFMTU:
-		case SIOCGIFMEM:
-		case SIOCGIFHWADDR:
-		case SIOCGIFINDEX:
-		case SIOCGIFADDR:
-		case SIOCGIFBRDADDR:
-		case SIOCGIFDSTADDR:
-		case SIOCGIFNETMASK:
-		case SIOCGIFTXQLEN:
-			if (copy_to_user(uifr32, &ifr, sizeof(*uifr32)))
-				return -EFAULT;
-			break;
-		case SIOCGIFMAP:
-			err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
-			err |= __put_user(ifr.ifr_map.mem_start, &uifmap32->mem_start);
-			err |= __put_user(ifr.ifr_map.mem_end, &uifmap32->mem_end);
-			err |= __put_user(ifr.ifr_map.base_addr, &uifmap32->base_addr);
-			err |= __put_user(ifr.ifr_map.irq, &uifmap32->irq);
-			err |= __put_user(ifr.ifr_map.dma, &uifmap32->dma);
-			err |= __put_user(ifr.ifr_map.port, &uifmap32->port);
-			if (err)
-				err = -EFAULT;
-			break;
-		}
-	}
-	return err;
-}
-
-struct rtentry32 {
-        u32   		rt_pad1;
-        struct sockaddr rt_dst;         /* target address               */
-        struct sockaddr rt_gateway;     /* gateway addr (RTF_GATEWAY)   */
-        struct sockaddr rt_genmask;     /* target network mask (IP)     */
-        unsigned short  rt_flags;
-        short           rt_pad2;
-        u32   		rt_pad3;
-        unsigned char   rt_tos;
-        unsigned char   rt_class;
-        short           rt_pad4;
-        short           rt_metric;      /* +1 for binary compatibility! */
-        /* char * */ u32 rt_dev;        /* forcing the device at add    */
-        u32   		rt_mtu;         /* per route MTU/Window         */
-        u32   		rt_window;      /* Window clamping              */
-        unsigned short  rt_irtt;        /* Initial RTT                  */
-
-};
-
-struct in6_rtmsg32 {
-	struct in6_addr		rtmsg_dst;
-	struct in6_addr		rtmsg_src;
-	struct in6_addr		rtmsg_gateway;
-	u32			rtmsg_type;
-	u16			rtmsg_dst_len;
-	u16			rtmsg_src_len;
-	u32			rtmsg_metric;
-	u32			rtmsg_info;
-	u32			rtmsg_flags;
-	s32			rtmsg_ifindex;
-};
-
-static int routing_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
-{
-	int ret;
-	void *r = NULL;
-	struct in6_rtmsg r6;
-	struct rtentry r4;
-	char devname[16];
-	u32 rtdev;
-	mm_segment_t old_fs = get_fs();
-	
-	struct socket *mysock = sockfd_lookup(fd, &ret);
-
-	if (mysock && mysock->sk && mysock->sk->sk_family == AF_INET6) { /* ipv6 */
-		struct in6_rtmsg32 __user *ur6 = compat_ptr(arg);
-		ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
-			3 * sizeof(struct in6_addr));
-		ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
-		ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
-		ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
-		ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
-		ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
-		ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
-		ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
-		
-		r = (void *) &r6;
-	} else { /* ipv4 */
-		struct rtentry32 __user *ur4 = compat_ptr(arg);
-		ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
-					3 * sizeof(struct sockaddr));
-		ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
-		ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
-		ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
-		ret |= __get_user (r4.rt_window, &(ur4->rt_window));
-		ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
-		ret |= __get_user (rtdev, &(ur4->rt_dev));
-		if (rtdev) {
-			ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
-			r4.rt_dev = devname; devname[15] = 0;
-		} else
-			r4.rt_dev = NULL;
-
-		r = (void *) &r4;
-	}
-
-	if (ret) {
-		ret = -EFAULT;
-		goto out;
-	}
-
-	set_fs (KERNEL_DS);
-	ret = sys_ioctl (fd, cmd, (unsigned long) r);
-	set_fs (old_fs);
-
-out:
-	if (mysock)
-		sockfd_put(mysock);
-
-	return ret;
-}
-#endif
-
 #ifdef CONFIG_BLOCK
 typedef struct sg_io_hdr32 {
 	compat_int_t interface_id;	/* [i] 'S' for SCSI generic (required) */
@@ -1212,170 +790,6 @@ static int do_smb_getmountuid(unsigned int fd, unsigned int cmd, unsigned long a
 	return err;
 }
 
-struct atmif_sioc32 {
-        compat_int_t	number;
-        compat_int_t	length;
-        compat_caddr_t	arg;
-};
-
-struct atm_iobuf32 {
-	compat_int_t	length;
-	compat_caddr_t	buffer;
-};
-
-#define ATM_GETLINKRATE32 _IOW('a', ATMIOC_ITF+1, struct atmif_sioc32)
-#define ATM_GETNAMES32    _IOW('a', ATMIOC_ITF+3, struct atm_iobuf32)
-#define ATM_GETTYPE32     _IOW('a', ATMIOC_ITF+4, struct atmif_sioc32)
-#define ATM_GETESI32	  _IOW('a', ATMIOC_ITF+5, struct atmif_sioc32)
-#define ATM_GETADDR32	  _IOW('a', ATMIOC_ITF+6, struct atmif_sioc32)
-#define ATM_RSTADDR32	  _IOW('a', ATMIOC_ITF+7, struct atmif_sioc32)
-#define ATM_ADDADDR32	  _IOW('a', ATMIOC_ITF+8, struct atmif_sioc32)
-#define ATM_DELADDR32	  _IOW('a', ATMIOC_ITF+9, struct atmif_sioc32)
-#define ATM_GETCIRANGE32  _IOW('a', ATMIOC_ITF+10, struct atmif_sioc32)
-#define ATM_SETCIRANGE32  _IOW('a', ATMIOC_ITF+11, struct atmif_sioc32)
-#define ATM_SETESI32      _IOW('a', ATMIOC_ITF+12, struct atmif_sioc32)
-#define ATM_SETESIF32     _IOW('a', ATMIOC_ITF+13, struct atmif_sioc32)
-#define ATM_GETSTAT32     _IOW('a', ATMIOC_SARCOM+0, struct atmif_sioc32)
-#define ATM_GETSTATZ32    _IOW('a', ATMIOC_SARCOM+1, struct atmif_sioc32)
-#define ATM_GETLOOP32	  _IOW('a', ATMIOC_SARCOM+2, struct atmif_sioc32)
-#define ATM_SETLOOP32	  _IOW('a', ATMIOC_SARCOM+3, struct atmif_sioc32)
-#define ATM_QUERYLOOP32	  _IOW('a', ATMIOC_SARCOM+4, struct atmif_sioc32)
-
-static struct {
-        unsigned int cmd32;
-        unsigned int cmd;
-} atm_ioctl_map[] = {
-        { ATM_GETLINKRATE32, ATM_GETLINKRATE },
-	{ ATM_GETNAMES32,    ATM_GETNAMES },
-        { ATM_GETTYPE32,     ATM_GETTYPE },
-        { ATM_GETESI32,      ATM_GETESI },
-        { ATM_GETADDR32,     ATM_GETADDR },
-        { ATM_RSTADDR32,     ATM_RSTADDR },
-        { ATM_ADDADDR32,     ATM_ADDADDR },
-        { ATM_DELADDR32,     ATM_DELADDR },
-        { ATM_GETCIRANGE32,  ATM_GETCIRANGE },
-	{ ATM_SETCIRANGE32,  ATM_SETCIRANGE },
-	{ ATM_SETESI32,      ATM_SETESI },
-	{ ATM_SETESIF32,     ATM_SETESIF },
-	{ ATM_GETSTAT32,     ATM_GETSTAT },
-	{ ATM_GETSTATZ32,    ATM_GETSTATZ },
-	{ ATM_GETLOOP32,     ATM_GETLOOP },
-	{ ATM_SETLOOP32,     ATM_SETLOOP },
-	{ ATM_QUERYLOOP32,   ATM_QUERYLOOP }
-};
-
-#define NR_ATM_IOCTL ARRAY_SIZE(atm_ioctl_map)
-
-static int do_atm_iobuf(unsigned int fd, unsigned int cmd, unsigned long arg)
-{
-	struct atm_iobuf   __user *iobuf;
-	struct atm_iobuf32 __user *iobuf32;
-	u32 data;
-	void __user *datap;
-	int len, err;
-
-	iobuf = compat_alloc_user_space(sizeof(*iobuf));
-	iobuf32 = compat_ptr(arg);
-
-	if (get_user(len, &iobuf32->length) ||
-	    get_user(data, &iobuf32->buffer))
-		return -EFAULT;
-	datap = compat_ptr(data);
-	if (put_user(len, &iobuf->length) ||
-	    put_user(datap, &iobuf->buffer))
-		return -EFAULT;
-
-	err = sys_ioctl(fd, cmd, (unsigned long)iobuf);
-
-	if (!err) {
-		if (copy_in_user(&iobuf32->length, &iobuf->length,
-				 sizeof(int)))
-			err = -EFAULT;
-	}
-
-	return err;
-}
-
-static int do_atmif_sioc(unsigned int fd, unsigned int cmd, unsigned long arg)
-{
-        struct atmif_sioc   __user *sioc;
-	struct atmif_sioc32 __user *sioc32;
-	u32 data;
-	void __user *datap;
-	int err;
-        
-	sioc = compat_alloc_user_space(sizeof(*sioc));
-	sioc32 = compat_ptr(arg);
-
-	if (copy_in_user(&sioc->number, &sioc32->number, 2 * sizeof(int)) ||
-	    get_user(data, &sioc32->arg))
-		return -EFAULT;
-	datap = compat_ptr(data);
-	if (put_user(datap, &sioc->arg))
-		return -EFAULT;
-
-	err = sys_ioctl(fd, cmd, (unsigned long) sioc);
-
-	if (!err) {
-		if (copy_in_user(&sioc32->length, &sioc->length,
-				 sizeof(int)))
-			err = -EFAULT;
-	}
-	return err;
-}
-
-static int do_atm_ioctl(unsigned int fd, unsigned int cmd32, unsigned long arg)
-{
-        int i;
-        unsigned int cmd = 0;
-        
-	switch (cmd32) {
-	case SONET_GETSTAT:
-	case SONET_GETSTATZ:
-	case SONET_GETDIAG:
-	case SONET_SETDIAG:
-	case SONET_CLRDIAG:
-	case SONET_SETFRAMING:
-	case SONET_GETFRAMING:
-	case SONET_GETFRSENSE:
-		return do_atmif_sioc(fd, cmd32, arg);
-	}
-
-	for (i = 0; i < NR_ATM_IOCTL; i++) {
-		if (cmd32 == atm_ioctl_map[i].cmd32) {
-			cmd = atm_ioctl_map[i].cmd;
-			break;
-		}
-	}
-	if (i == NR_ATM_IOCTL)
-	        return -EINVAL;
-        
-        switch (cmd) {
-	case ATM_GETNAMES:
-		return do_atm_iobuf(fd, cmd, arg);
-	    
-	case ATM_GETLINKRATE:
-        case ATM_GETTYPE:
-        case ATM_GETESI:
-        case ATM_GETADDR:
-        case ATM_RSTADDR:
-        case ATM_ADDADDR:
-        case ATM_DELADDR:
-        case ATM_GETCIRANGE:
-	case ATM_SETCIRANGE:
-	case ATM_SETESI:
-	case ATM_SETESIF:
-	case ATM_GETSTAT:
-	case ATM_GETSTATZ:
-	case ATM_GETLOOP:
-	case ATM_SETLOOP:
-	case ATM_QUERYLOOP:
-                return do_atmif_sioc(fd, cmd, arg);
-        }
-
-        return -EINVAL;
-}
-
 static __used int
 ret_einval(unsigned int fd, unsigned int cmd, unsigned long arg)
 {
@@ -1718,21 +1132,6 @@ static int do_i2c_smbus_ioctl(unsigned int fd, unsigned int cmd, unsigned long a
 	return sys_ioctl(fd, cmd, (unsigned long)tdata);
 }
 
-/* Since old style bridge ioctl's endup using SIOCDEVPRIVATE
- * for some operations; this forces use of the newer bridge-utils that
- * use compatible ioctls
- */
-static int old_bridge_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
-{
-	u32 tmp;
-
-	if (get_user(tmp, (u32 __user *) arg))
-		return -EFAULT;
-	if (tmp == BRCTL_GET_VERSION)
-		return BRCTL_VERSION + 1;
-	return -EINVAL;
-}
-
 #define RTC_IRQP_READ32		_IOR('p', 0x0b, compat_ulong_t)
 #define RTC_IRQP_SET32		_IOW('p', 0x0c, compat_ulong_t)
 #define RTC_EPOCH_READ32	_IOR('p', 0x0d, compat_ulong_t)
@@ -1979,18 +1378,6 @@ COMPATIBLE_IOCTL(SCSI_IOCTL_SEND_COMMAND)
 COMPATIBLE_IOCTL(SCSI_IOCTL_PROBE_HOST)
 COMPATIBLE_IOCTL(SCSI_IOCTL_GET_PCI)
 #endif
-/* Big T */
-COMPATIBLE_IOCTL(TUNSETNOCSUM)
-COMPATIBLE_IOCTL(TUNSETDEBUG)
-COMPATIBLE_IOCTL(TUNSETPERSIST)
-COMPATIBLE_IOCTL(TUNSETOWNER)
-COMPATIBLE_IOCTL(TUNSETLINK)
-COMPATIBLE_IOCTL(TUNSETGROUP)
-COMPATIBLE_IOCTL(TUNGETFEATURES)
-COMPATIBLE_IOCTL(TUNSETOFFLOAD)
-COMPATIBLE_IOCTL(TUNSETTXFILTER)
-COMPATIBLE_IOCTL(TUNGETSNDBUF)
-COMPATIBLE_IOCTL(TUNSETSNDBUF)
 /* Big V */
 COMPATIBLE_IOCTL(VT_SETMODE)
 COMPATIBLE_IOCTL(VT_GETMODE)
@@ -2032,30 +1419,6 @@ COMPATIBLE_IOCTL(_IOW('p', 21, int[7])) /* RTCSET */
 COMPATIBLE_IOCTL(MTIOCTOP)
 /* Socket level stuff */
 COMPATIBLE_IOCTL(FIOQSIZE)
-COMPATIBLE_IOCTL(FIOSETOWN)
-COMPATIBLE_IOCTL(SIOCSPGRP)
-COMPATIBLE_IOCTL(FIOGETOWN)
-COMPATIBLE_IOCTL(SIOCGPGRP)
-COMPATIBLE_IOCTL(SIOCATMARK)
-COMPATIBLE_IOCTL(SIOCSIFLINK)
-COMPATIBLE_IOCTL(SIOCSIFENCAP)
-COMPATIBLE_IOCTL(SIOCGIFENCAP)
-COMPATIBLE_IOCTL(SIOCSIFNAME)
-COMPATIBLE_IOCTL(SIOCSARP)
-COMPATIBLE_IOCTL(SIOCGARP)
-COMPATIBLE_IOCTL(SIOCDARP)
-COMPATIBLE_IOCTL(SIOCSRARP)
-COMPATIBLE_IOCTL(SIOCGRARP)
-COMPATIBLE_IOCTL(SIOCDRARP)
-COMPATIBLE_IOCTL(SIOCADDDLCI)
-COMPATIBLE_IOCTL(SIOCDELDLCI)
-COMPATIBLE_IOCTL(SIOCGMIIPHY)
-COMPATIBLE_IOCTL(SIOCGMIIREG)
-COMPATIBLE_IOCTL(SIOCSMIIREG)
-COMPATIBLE_IOCTL(SIOCGIFVLAN)
-COMPATIBLE_IOCTL(SIOCSIFVLAN)
-COMPATIBLE_IOCTL(SIOCBRADDBR)
-COMPATIBLE_IOCTL(SIOCBRDELBR)
 #ifdef CONFIG_BLOCK
 /* SG stuff */
 COMPATIBLE_IOCTL(SG_SET_TIMEOUT)
@@ -2311,22 +1674,6 @@ COMPATIBLE_IOCTL(RAW_SETBIND)
 COMPATIBLE_IOCTL(RAW_GETBIND)
 /* SMB ioctls which do not need any translations */
 COMPATIBLE_IOCTL(SMB_IOC_NEWCONN)
-/* Little a */
-COMPATIBLE_IOCTL(ATMSIGD_CTRL)
-COMPATIBLE_IOCTL(ATMARPD_CTRL)
-COMPATIBLE_IOCTL(ATMLEC_CTRL)
-COMPATIBLE_IOCTL(ATMLEC_MCAST)
-COMPATIBLE_IOCTL(ATMLEC_DATA)
-COMPATIBLE_IOCTL(ATM_SETSC)
-COMPATIBLE_IOCTL(SIOCSIFATMTCP)
-COMPATIBLE_IOCTL(SIOCMKCLIP)
-COMPATIBLE_IOCTL(ATMARP_MKIP)
-COMPATIBLE_IOCTL(ATMARP_SETENTRY)
-COMPATIBLE_IOCTL(ATMARP_ENCAP)
-COMPATIBLE_IOCTL(ATMTCP_CREATE)
-COMPATIBLE_IOCTL(ATMTCP_REMOVE)
-COMPATIBLE_IOCTL(ATMMPC_CTRL)
-COMPATIBLE_IOCTL(ATMMPC_DATA)
 /* Watchdog */
 COMPATIBLE_IOCTL(WDIOC_GETSUPPORT)
 COMPATIBLE_IOCTL(WDIOC_GETSTATUS)
@@ -2532,63 +1879,6 @@ COMPATIBLE_IOCTL(JSIOCGBUTTONS)
 COMPATIBLE_IOCTL(JSIOCGNAME(0))
 
 /* now things that need handlers */
-#ifdef CONFIG_NET
-HANDLE_IOCTL(SIOCGIFNAME, dev_ifname32)
-HANDLE_IOCTL(SIOCGIFCONF, dev_ifconf)
-HANDLE_IOCTL(SIOCGIFFLAGS, dev_ifsioc)
-HANDLE_IOCTL(SIOCSIFFLAGS, dev_ifsioc)
-HANDLE_IOCTL(SIOCGIFMETRIC, dev_ifsioc)
-HANDLE_IOCTL(SIOCSIFMETRIC, dev_ifsioc)
-HANDLE_IOCTL(SIOCGIFMTU, dev_ifsioc)
-HANDLE_IOCTL(SIOCSIFMTU, dev_ifsioc)
-HANDLE_IOCTL(SIOCGIFMEM, dev_ifsioc)
-HANDLE_IOCTL(SIOCSIFMEM, dev_ifsioc)
-HANDLE_IOCTL(SIOCGIFHWADDR, dev_ifsioc)
-HANDLE_IOCTL(SIOCSIFHWADDR, dev_ifsioc)
-HANDLE_IOCTL(SIOCADDMULTI, dev_ifsioc)
-HANDLE_IOCTL(SIOCDELMULTI, dev_ifsioc)
-HANDLE_IOCTL(SIOCGIFINDEX, dev_ifsioc)
-HANDLE_IOCTL(SIOCGIFMAP, dev_ifsioc)
-HANDLE_IOCTL(SIOCSIFMAP, dev_ifsioc)
-HANDLE_IOCTL(SIOCGIFADDR, dev_ifsioc)
-HANDLE_IOCTL(SIOCSIFADDR, dev_ifsioc)
-HANDLE_IOCTL(SIOCSIFHWBROADCAST, dev_ifsioc)
-HANDLE_IOCTL(SIOCSHWTSTAMP, dev_ifsioc)
-
-/* ioctls used by appletalk ddp.c */
-HANDLE_IOCTL(SIOCATALKDIFADDR, dev_ifsioc)
-HANDLE_IOCTL(SIOCDIFADDR, dev_ifsioc)
-HANDLE_IOCTL(SIOCSARP, dev_ifsioc)
-HANDLE_IOCTL(SIOCDARP, dev_ifsioc)
-
-HANDLE_IOCTL(SIOCGIFBRDADDR, dev_ifsioc)
-HANDLE_IOCTL(SIOCSIFBRDADDR, dev_ifsioc)
-HANDLE_IOCTL(SIOCGIFDSTADDR, dev_ifsioc)
-HANDLE_IOCTL(SIOCSIFDSTADDR, dev_ifsioc)
-HANDLE_IOCTL(SIOCGIFNETMASK, dev_ifsioc)
-HANDLE_IOCTL(SIOCSIFNETMASK, dev_ifsioc)
-HANDLE_IOCTL(SIOCSIFPFLAGS, dev_ifsioc)
-HANDLE_IOCTL(SIOCGIFPFLAGS, dev_ifsioc)
-HANDLE_IOCTL(SIOCGIFTXQLEN, dev_ifsioc)
-HANDLE_IOCTL(SIOCSIFTXQLEN, dev_ifsioc)
-HANDLE_IOCTL(TUNSETIFF, dev_ifsioc)
-HANDLE_IOCTL(TUNGETIFF, dev_ifsioc)
-HANDLE_IOCTL(SIOCETHTOOL, ethtool_ioctl)
-HANDLE_IOCTL(SIOCBONDENSLAVE, bond_ioctl)
-HANDLE_IOCTL(SIOCBONDRELEASE, bond_ioctl)
-HANDLE_IOCTL(SIOCBONDSETHWADDR, bond_ioctl)
-HANDLE_IOCTL(SIOCBONDSLAVEINFOQUERY, bond_ioctl)
-HANDLE_IOCTL(SIOCBONDINFOQUERY, bond_ioctl)
-HANDLE_IOCTL(SIOCBONDCHANGEACTIVE, bond_ioctl)
-HANDLE_IOCTL(SIOCADDRT, routing_ioctl)
-HANDLE_IOCTL(SIOCDELRT, routing_ioctl)
-HANDLE_IOCTL(SIOCBRADDIF, dev_ifsioc)
-HANDLE_IOCTL(SIOCBRDELIF, dev_ifsioc)
-/* Note SIOCRTMSG is no longer, so this is safe and * the user would have seen just an -EINVAL anyways. */
-HANDLE_IOCTL(SIOCRTMSG, ret_einval)
-HANDLE_IOCTL(SIOCGSTAMP, do_siocgstamp)
-HANDLE_IOCTL(SIOCGSTAMPNS, do_siocgstampns)
-#endif
 #ifdef CONFIG_BLOCK
 HANDLE_IOCTL(SG_IO,sg_ioctl_trans)
 HANDLE_IOCTL(SG_GET_REQUEST_TABLE, sg_grt_trans)
@@ -2613,31 +1903,6 @@ HANDLE_IOCTL(KDFONTOP, do_kdfontop_ioctl)
 /* One SMB ioctl needs translations. */
 #define SMB_IOC_GETMOUNTUID_32 _IOR('u', 1, compat_uid_t)
 HANDLE_IOCTL(SMB_IOC_GETMOUNTUID_32, do_smb_getmountuid)
-HANDLE_IOCTL(ATM_GETLINKRATE32, do_atm_ioctl)
-HANDLE_IOCTL(ATM_GETNAMES32, do_atm_ioctl)
-HANDLE_IOCTL(ATM_GETTYPE32, do_atm_ioctl)
-HANDLE_IOCTL(ATM_GETESI32, do_atm_ioctl)
-HANDLE_IOCTL(ATM_GETADDR32, do_atm_ioctl)
-HANDLE_IOCTL(ATM_RSTADDR32, do_atm_ioctl)
-HANDLE_IOCTL(ATM_ADDADDR32, do_atm_ioctl)
-HANDLE_IOCTL(ATM_DELADDR32, do_atm_ioctl)
-HANDLE_IOCTL(ATM_GETCIRANGE32, do_atm_ioctl)
-HANDLE_IOCTL(ATM_SETCIRANGE32, do_atm_ioctl)
-HANDLE_IOCTL(ATM_SETESI32, do_atm_ioctl)
-HANDLE_IOCTL(ATM_SETESIF32, do_atm_ioctl)
-HANDLE_IOCTL(ATM_GETSTAT32, do_atm_ioctl)
-HANDLE_IOCTL(ATM_GETSTATZ32, do_atm_ioctl)
-HANDLE_IOCTL(ATM_GETLOOP32, do_atm_ioctl)
-HANDLE_IOCTL(ATM_SETLOOP32, do_atm_ioctl)
-HANDLE_IOCTL(ATM_QUERYLOOP32, do_atm_ioctl)
-HANDLE_IOCTL(SONET_GETSTAT, do_atm_ioctl)
-HANDLE_IOCTL(SONET_GETSTATZ, do_atm_ioctl)
-HANDLE_IOCTL(SONET_GETDIAG, do_atm_ioctl)
-HANDLE_IOCTL(SONET_SETDIAG, do_atm_ioctl)
-HANDLE_IOCTL(SONET_CLRDIAG, do_atm_ioctl)
-HANDLE_IOCTL(SONET_SETFRAMING, do_atm_ioctl)
-HANDLE_IOCTL(SONET_GETFRAMING, do_atm_ioctl)
-HANDLE_IOCTL(SONET_GETFRSENSE, do_atm_ioctl)
 /* block stuff */
 #ifdef CONFIG_BLOCK
 /* loop */
@@ -2672,11 +1937,7 @@ COMPATIBLE_IOCTL(USBDEVFS_IOCTL32)
 HANDLE_IOCTL(I2C_FUNCS, w_long)
 HANDLE_IOCTL(I2C_RDWR, do_i2c_rdwr_ioctl)
 HANDLE_IOCTL(I2C_SMBUS, do_i2c_smbus_ioctl)
-/* bridge */
-HANDLE_IOCTL(SIOCSIFBR, old_bridge_ioctl)
-HANDLE_IOCTL(SIOCGIFBR, old_bridge_ioctl)
 /* Not implemented in the native kernel */
-IGNORE_IOCTL(SIOCGIFCOUNT)
 HANDLE_IOCTL(RTC_IRQP_READ32, rtc_ioctl)
 HANDLE_IOCTL(RTC_IRQP_SET32, rtc_ioctl)
 HANDLE_IOCTL(RTC_EPOCH_READ32, rtc_ioctl)
@@ -2831,12 +2092,6 @@ asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
 			goto found_handler;
 	}
 
-#ifdef CONFIG_NET
-	if (S_ISSOCK(filp->f_path.dentry->d_inode->i_mode) &&
-	    cmd >= SIOCDEVPRIVATE && cmd <= (SIOCDEVPRIVATE + 15)) {
-		error = siocdevprivate_ioctl(fd, cmd, arg);
-	} else
-#endif
 	{
 		static int count;
 
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 8b10b87dc01..b912270942f 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -1028,9 +1028,6 @@ direct_io_worker(int rw, struct kiocb *iocb, struct inode *inode,
 	if (dio->bio)
 		dio_bio_submit(dio);
 
-	/* All IO is now issued, send it on its way */
-	blk_run_address_space(inode->i_mapping);
-
 	/*
 	 * It is possible that, we return short IO due to end of file.
 	 * In that case, we need to release all the pages we got hold on.
@@ -1057,8 +1054,11 @@ direct_io_worker(int rw, struct kiocb *iocb, struct inode *inode,
 	    ((rw & READ) || (dio->result == dio->size)))
 		ret = -EIOCBQUEUED;
 
-	if (ret != -EIOCBQUEUED)
+	if (ret != -EIOCBQUEUED) {
+		/* All IO is now issued, send it on its way */
+		blk_run_address_space(inode->i_mapping);
 		dio_await_completion(dio);
+	}
 
 	/*
 	 * Sync will always be dropping the final ref and completing the
@@ -1124,7 +1124,7 @@ __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
 	int acquire_i_mutex = 0;
 
 	if (rw & WRITE)
-		rw = WRITE_ODIRECT;
+		rw = WRITE_ODIRECT_PLUG;
 
 	if (bdev)
 		bdev_blkbits = blksize_bits(bdev_logical_block_size(bdev));
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 085c5c06342..366c503f965 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -251,10 +251,10 @@ ctl_table epoll_table[] = {
 		.data		= &max_user_watches,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_minmax,
+		.proc_handler	= proc_dointvec_minmax,
 		.extra1		= &zero,
 	},
-	{ .ctl_name = 0 }
+	{ }
 };
 #endif /* CONFIG_SYSCTL */
 
diff --git a/fs/exec.c b/fs/exec.c
index ba112bd4a33..c0c636e34f6 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -46,7 +46,6 @@
 #include <linux/proc_fs.h>
 #include <linux/mount.h>
 #include <linux/security.h>
-#include <linux/ima.h>
 #include <linux/syscalls.h>
 #include <linux/tsacct_kern.h>
 #include <linux/cn_proc.h>
@@ -1209,9 +1208,6 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs)
 	retval = security_bprm_check(bprm);
 	if (retval)
 		return retval;
-	retval = ima_bprm_check(bprm);
-	if (retval)
-		return retval;
 
 	/* kernel module loader fixup */
 	/* so we don't try to load run modprobe in kernel space. */
diff --git a/fs/file_table.c b/fs/file_table.c
index 8eb44042e00..4bef4c01ec6 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -13,7 +13,6 @@
 #include <linux/module.h>
 #include <linux/fs.h>
 #include <linux/security.h>
-#include <linux/ima.h>
 #include <linux/eventpoll.h>
 #include <linux/rcupdate.h>
 #include <linux/mount.h>
@@ -280,7 +279,6 @@ void __fput(struct file *file)
 	if (file->f_op && file->f_op->release)
 		file->f_op->release(inode, file);
 	security_file_free(file);
-	ima_file_free(file);
 	if (unlikely(S_ISCHR(inode->i_mode) && inode->i_cdev != NULL))
 		cdev_put(inode->i_cdev);
 	fops_put(file->f_op);
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 9d5360c4c2a..49bc1b8e8f1 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -614,7 +614,6 @@ static void writeback_inodes_wb(struct bdi_writeback *wb,
 				struct writeback_control *wbc)
 {
 	struct super_block *sb = wbc->sb, *pin_sb = NULL;
-	const int is_blkdev_sb = sb_is_blkdev_sb(sb);
 	const unsigned long start = jiffies;	/* livelock avoidance */
 
 	spin_lock(&inode_lock);
@@ -635,36 +634,11 @@ static void writeback_inodes_wb(struct bdi_writeback *wb,
 			continue;
 		}
 
-		if (!bdi_cap_writeback_dirty(wb->bdi)) {
-			redirty_tail(inode);
-			if (is_blkdev_sb) {
-				/*
-				 * Dirty memory-backed blockdev: the ramdisk
-				 * driver does this.  Skip just this inode
-				 */
-				continue;
-			}
-			/*
-			 * Dirty memory-backed inode against a filesystem other
-			 * than the kernel-internal bdev filesystem.  Skip the
-			 * entire superblock.
-			 */
-			break;
-		}
-
 		if (inode->i_state & (I_NEW | I_WILL_FREE)) {
 			requeue_io(inode);
 			continue;
 		}
 
-		if (wbc->nonblocking && bdi_write_congested(wb->bdi)) {
-			wbc->encountered_congestion = 1;
-			if (!is_blkdev_sb)
-				break;		/* Skip a congested fs */
-			requeue_io(inode);
-			continue;		/* Skip a congested blockdev */
-		}
-
 		/*
 		 * Was this inode dirtied after sync_sb_inodes was called?
 		 * This keeps sync from extra jobs and livelock.
@@ -756,6 +730,7 @@ static long wb_writeback(struct bdi_writeback *wb,
 		.sync_mode		= args->sync_mode,
 		.older_than_this	= NULL,
 		.for_kupdate		= args->for_kupdate,
+		.for_background		= args->for_background,
 		.range_cyclic		= args->range_cyclic,
 	};
 	unsigned long oldest_jif;
@@ -787,7 +762,6 @@ static long wb_writeback(struct bdi_writeback *wb,
 			break;
 
 		wbc.more_io = 0;
-		wbc.encountered_congestion = 0;
 		wbc.nr_to_write = MAX_WRITEBACK_PAGES;
 		wbc.pages_skipped = 0;
 		writeback_inodes_wb(wb, &wbc);
diff --git a/fs/fscache/Kconfig b/fs/fscache/Kconfig
index 9bbb8ce7bea..864dac20a24 100644
--- a/fs/fscache/Kconfig
+++ b/fs/fscache/Kconfig
@@ -54,3 +54,10 @@ config FSCACHE_DEBUG
 	  enabled by setting bits in /sys/modules/fscache/parameter/debug.
 
 	  See Documentation/filesystems/caching/fscache.txt for more information.
+
+config FSCACHE_OBJECT_LIST
+	bool "Maintain global object list for debugging purposes"
+	depends on FSCACHE && PROC_FS
+	help
+	  Maintain a global list of active fscache objects that can be
+	  retrieved through /proc/fs/fscache/objects for debugging purposes
diff --git a/fs/fscache/Makefile b/fs/fscache/Makefile
index 91571b95aac..6d561531cb3 100644
--- a/fs/fscache/Makefile
+++ b/fs/fscache/Makefile
@@ -15,5 +15,6 @@ fscache-y := \
 fscache-$(CONFIG_PROC_FS) += proc.o
 fscache-$(CONFIG_FSCACHE_STATS) += stats.o
 fscache-$(CONFIG_FSCACHE_HISTOGRAM) += histogram.o
+fscache-$(CONFIG_FSCACHE_OBJECT_LIST) += object-list.o
 
 obj-$(CONFIG_FSCACHE) := fscache.o
diff --git a/fs/fscache/cache.c b/fs/fscache/cache.c
index e21985bbb1f..6a3c48abd67 100644
--- a/fs/fscache/cache.c
+++ b/fs/fscache/cache.c
@@ -263,6 +263,7 @@ int fscache_add_cache(struct fscache_cache *cache,
 	spin_lock(&cache->object_list_lock);
 	list_add_tail(&ifsdef->cache_link, &cache->object_list);
 	spin_unlock(&cache->object_list_lock);
+	fscache_objlist_add(ifsdef);
 
 	/* add the cache's netfs definition index object to the top level index
 	 * cookie as a known backing object */
@@ -380,11 +381,15 @@ void fscache_withdraw_cache(struct fscache_cache *cache)
 
 	/* make sure all pages pinned by operations on behalf of the netfs are
 	 * written to disk */
+	fscache_stat(&fscache_n_cop_sync_cache);
 	cache->ops->sync_cache(cache);
+	fscache_stat_d(&fscache_n_cop_sync_cache);
 
 	/* dissociate all the netfs pages backed by this cache from the block
 	 * mappings in the cache */
+	fscache_stat(&fscache_n_cop_dissociate_pages);
 	cache->ops->dissociate_pages(cache);
+	fscache_stat_d(&fscache_n_cop_dissociate_pages);
 
 	/* we now have to destroy all the active objects pertaining to this
 	 * cache - which we do by passing them off to thread pool to be
diff --git a/fs/fscache/cookie.c b/fs/fscache/cookie.c
index 72fd18f6c71..990535071a8 100644
--- a/fs/fscache/cookie.c
+++ b/fs/fscache/cookie.c
@@ -36,6 +36,7 @@ void fscache_cookie_init_once(void *_cookie)
 
 	memset(cookie, 0, sizeof(*cookie));
 	spin_lock_init(&cookie->lock);
+	spin_lock_init(&cookie->stores_lock);
 	INIT_HLIST_HEAD(&cookie->backing_objects);
 }
 
@@ -102,7 +103,9 @@ struct fscache_cookie *__fscache_acquire_cookie(
 	cookie->netfs_data	= netfs_data;
 	cookie->flags		= 0;
 
-	INIT_RADIX_TREE(&cookie->stores, GFP_NOFS);
+	/* radix tree insertion won't use the preallocation pool unless it's
+	 * told it may not wait */
+	INIT_RADIX_TREE(&cookie->stores, GFP_NOFS & ~__GFP_WAIT);
 
 	switch (cookie->def->type) {
 	case FSCACHE_COOKIE_TYPE_INDEX:
@@ -249,7 +252,9 @@ static int fscache_alloc_object(struct fscache_cache *cache,
 
 	/* ask the cache to allocate an object (we may end up with duplicate
 	 * objects at this stage, but we sort that out later) */
+	fscache_stat(&fscache_n_cop_alloc_object);
 	object = cache->ops->alloc_object(cache, cookie);
+	fscache_stat_d(&fscache_n_cop_alloc_object);
 	if (IS_ERR(object)) {
 		fscache_stat(&fscache_n_object_no_alloc);
 		ret = PTR_ERR(object);
@@ -270,8 +275,11 @@ static int fscache_alloc_object(struct fscache_cache *cache,
 	/* only attach if we managed to allocate all we needed, otherwise
 	 * discard the object we just allocated and instead use the one
 	 * attached to the cookie */
-	if (fscache_attach_object(cookie, object) < 0)
+	if (fscache_attach_object(cookie, object) < 0) {
+		fscache_stat(&fscache_n_cop_put_object);
 		cache->ops->put_object(object);
+		fscache_stat_d(&fscache_n_cop_put_object);
+	}
 
 	_leave(" = 0");
 	return 0;
@@ -287,7 +295,9 @@ object_already_extant:
 	return 0;
 
 error_put:
+	fscache_stat(&fscache_n_cop_put_object);
 	cache->ops->put_object(object);
+	fscache_stat_d(&fscache_n_cop_put_object);
 error:
 	_leave(" = %d", ret);
 	return ret;
@@ -349,6 +359,8 @@ static int fscache_attach_object(struct fscache_cookie *cookie,
 	object->cookie = cookie;
 	atomic_inc(&cookie->usage);
 	hlist_add_head(&object->cookie_link, &cookie->backing_objects);
+
+	fscache_objlist_add(object);
 	ret = 0;
 
 cant_attach_object:
@@ -403,6 +415,8 @@ void __fscache_relinquish_cookie(struct fscache_cookie *cookie, int retire)
 	unsigned long event;
 
 	fscache_stat(&fscache_n_relinquishes);
+	if (retire)
+		fscache_stat(&fscache_n_relinquishes_retire);
 
 	if (!cookie) {
 		fscache_stat(&fscache_n_relinquishes_null);
@@ -428,12 +442,8 @@ void __fscache_relinquish_cookie(struct fscache_cookie *cookie, int retire)
 
 	event = retire ? FSCACHE_OBJECT_EV_RETIRE : FSCACHE_OBJECT_EV_RELEASE;
 
-	/* detach pointers back to the netfs */
 	spin_lock(&cookie->lock);
 
-	cookie->netfs_data	= NULL;
-	cookie->def		= NULL;
-
 	/* break links with all the active objects */
 	while (!hlist_empty(&cookie->backing_objects)) {
 		object = hlist_entry(cookie->backing_objects.first,
@@ -456,6 +466,10 @@ void __fscache_relinquish_cookie(struct fscache_cookie *cookie, int retire)
 			BUG();
 	}
 
+	/* detach pointers back to the netfs */
+	cookie->netfs_data	= NULL;
+	cookie->def		= NULL;
+
 	spin_unlock(&cookie->lock);
 
 	if (cookie->parent) {
diff --git a/fs/fscache/internal.h b/fs/fscache/internal.h
index 1c341304621..edd7434ab6e 100644
--- a/fs/fscache/internal.h
+++ b/fs/fscache/internal.h
@@ -17,6 +17,7 @@
  * - cache->object_list_lock
  * - object->lock
  * - object->parent->lock
+ * - cookie->stores_lock
  * - fscache_thread_lock
  *
  */
@@ -88,17 +89,31 @@ extern int fscache_wait_bit_interruptible(void *);
 /*
  * object.c
  */
+extern const char fscache_object_states_short[FSCACHE_OBJECT__NSTATES][5];
+
 extern void fscache_withdrawing_object(struct fscache_cache *,
 				       struct fscache_object *);
 extern void fscache_enqueue_object(struct fscache_object *);
 
 /*
+ * object-list.c
+ */
+#ifdef CONFIG_FSCACHE_OBJECT_LIST
+extern const struct file_operations fscache_objlist_fops;
+
+extern void fscache_objlist_add(struct fscache_object *);
+#else
+#define fscache_objlist_add(object) do {} while(0)
+#endif
+
+/*
  * operation.c
  */
 extern int fscache_submit_exclusive_op(struct fscache_object *,
 				       struct fscache_operation *);
 extern int fscache_submit_op(struct fscache_object *,
 			     struct fscache_operation *);
+extern int fscache_cancel_op(struct fscache_operation *);
 extern void fscache_abort_object(struct fscache_object *);
 extern void fscache_start_operations(struct fscache_object *);
 extern void fscache_operation_gc(struct work_struct *);
@@ -127,6 +142,8 @@ extern atomic_t fscache_n_op_enqueue;
 extern atomic_t fscache_n_op_deferred_release;
 extern atomic_t fscache_n_op_release;
 extern atomic_t fscache_n_op_gc;
+extern atomic_t fscache_n_op_cancelled;
+extern atomic_t fscache_n_op_rejected;
 
 extern atomic_t fscache_n_attr_changed;
 extern atomic_t fscache_n_attr_changed_ok;
@@ -138,6 +155,8 @@ extern atomic_t fscache_n_allocs;
 extern atomic_t fscache_n_allocs_ok;
 extern atomic_t fscache_n_allocs_wait;
 extern atomic_t fscache_n_allocs_nobufs;
+extern atomic_t fscache_n_allocs_intr;
+extern atomic_t fscache_n_allocs_object_dead;
 extern atomic_t fscache_n_alloc_ops;
 extern atomic_t fscache_n_alloc_op_waits;
 
@@ -148,6 +167,7 @@ extern atomic_t fscache_n_retrievals_nodata;
 extern atomic_t fscache_n_retrievals_nobufs;
 extern atomic_t fscache_n_retrievals_intr;
 extern atomic_t fscache_n_retrievals_nomem;
+extern atomic_t fscache_n_retrievals_object_dead;
 extern atomic_t fscache_n_retrieval_ops;
 extern atomic_t fscache_n_retrieval_op_waits;
 
@@ -158,6 +178,14 @@ extern atomic_t fscache_n_stores_nobufs;
 extern atomic_t fscache_n_stores_oom;
 extern atomic_t fscache_n_store_ops;
 extern atomic_t fscache_n_store_calls;
+extern atomic_t fscache_n_store_pages;
+extern atomic_t fscache_n_store_radix_deletes;
+extern atomic_t fscache_n_store_pages_over_limit;
+
+extern atomic_t fscache_n_store_vmscan_not_storing;
+extern atomic_t fscache_n_store_vmscan_gone;
+extern atomic_t fscache_n_store_vmscan_busy;
+extern atomic_t fscache_n_store_vmscan_cancelled;
 
 extern atomic_t fscache_n_marks;
 extern atomic_t fscache_n_uncaches;
@@ -176,6 +204,7 @@ extern atomic_t fscache_n_updates_run;
 extern atomic_t fscache_n_relinquishes;
 extern atomic_t fscache_n_relinquishes_null;
 extern atomic_t fscache_n_relinquishes_waitcrt;
+extern atomic_t fscache_n_relinquishes_retire;
 
 extern atomic_t fscache_n_cookie_index;
 extern atomic_t fscache_n_cookie_data;
@@ -186,6 +215,7 @@ extern atomic_t fscache_n_object_no_alloc;
 extern atomic_t fscache_n_object_lookups;
 extern atomic_t fscache_n_object_lookups_negative;
 extern atomic_t fscache_n_object_lookups_positive;
+extern atomic_t fscache_n_object_lookups_timed_out;
 extern atomic_t fscache_n_object_created;
 extern atomic_t fscache_n_object_avail;
 extern atomic_t fscache_n_object_dead;
@@ -195,15 +225,41 @@ extern atomic_t fscache_n_checkaux_okay;
 extern atomic_t fscache_n_checkaux_update;
 extern atomic_t fscache_n_checkaux_obsolete;
 
+extern atomic_t fscache_n_cop_alloc_object;
+extern atomic_t fscache_n_cop_lookup_object;
+extern atomic_t fscache_n_cop_lookup_complete;
+extern atomic_t fscache_n_cop_grab_object;
+extern atomic_t fscache_n_cop_update_object;
+extern atomic_t fscache_n_cop_drop_object;
+extern atomic_t fscache_n_cop_put_object;
+extern atomic_t fscache_n_cop_sync_cache;
+extern atomic_t fscache_n_cop_attr_changed;
+extern atomic_t fscache_n_cop_read_or_alloc_page;
+extern atomic_t fscache_n_cop_read_or_alloc_pages;
+extern atomic_t fscache_n_cop_allocate_page;
+extern atomic_t fscache_n_cop_allocate_pages;
+extern atomic_t fscache_n_cop_write_page;
+extern atomic_t fscache_n_cop_uncache_page;
+extern atomic_t fscache_n_cop_dissociate_pages;
+
 static inline void fscache_stat(atomic_t *stat)
 {
 	atomic_inc(stat);
 }
 
+static inline void fscache_stat_d(atomic_t *stat)
+{
+	atomic_dec(stat);
+}
+
+#define __fscache_stat(stat) (stat)
+
 extern const struct file_operations fscache_stats_fops;
 #else
 
+#define __fscache_stat(stat) (NULL)
 #define fscache_stat(stat) do {} while (0)
+#define fscache_stat_d(stat) do {} while (0)
 #endif
 
 /*
diff --git a/fs/fscache/main.c b/fs/fscache/main.c
index 4de41b59749..add6bdb53f0 100644
--- a/fs/fscache/main.c
+++ b/fs/fscache/main.c
@@ -48,7 +48,7 @@ static int __init fscache_init(void)
 {
 	int ret;
 
-	ret = slow_work_register_user();
+	ret = slow_work_register_user(THIS_MODULE);
 	if (ret < 0)
 		goto error_slow_work;
 
@@ -80,7 +80,7 @@ error_kobj:
 error_cookie_jar:
 	fscache_proc_cleanup();
 error_proc:
-	slow_work_unregister_user();
+	slow_work_unregister_user(THIS_MODULE);
 error_slow_work:
 	return ret;
 }
@@ -97,7 +97,7 @@ static void __exit fscache_exit(void)
 	kobject_put(fscache_root);
 	kmem_cache_destroy(fscache_cookie_jar);
 	fscache_proc_cleanup();
-	slow_work_unregister_user();
+	slow_work_unregister_user(THIS_MODULE);
 	printk(KERN_NOTICE "FS-Cache: Unloaded\n");
 }
 
diff --git a/fs/fscache/object-list.c b/fs/fscache/object-list.c
new file mode 100644
index 00000000000..e590242fa41
--- /dev/null
+++ b/fs/fscache/object-list.c
@@ -0,0 +1,432 @@
+/* Global fscache object list maintainer and viewer
+ *
+ * Copyright (C) 2009 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#define FSCACHE_DEBUG_LEVEL COOKIE
+#include <linux/module.h>
+#include <linux/seq_file.h>
+#include <linux/key.h>
+#include <keys/user-type.h>
+#include "internal.h"
+
+static struct rb_root fscache_object_list;
+static DEFINE_RWLOCK(fscache_object_list_lock);
+
+struct fscache_objlist_data {
+	unsigned long	config;		/* display configuration */
+#define FSCACHE_OBJLIST_CONFIG_KEY	0x00000001	/* show object keys */
+#define FSCACHE_OBJLIST_CONFIG_AUX	0x00000002	/* show object auxdata */
+#define FSCACHE_OBJLIST_CONFIG_COOKIE	0x00000004	/* show objects with cookies */
+#define FSCACHE_OBJLIST_CONFIG_NOCOOKIE	0x00000008	/* show objects without cookies */
+#define FSCACHE_OBJLIST_CONFIG_BUSY	0x00000010	/* show busy objects */
+#define FSCACHE_OBJLIST_CONFIG_IDLE	0x00000020	/* show idle objects */
+#define FSCACHE_OBJLIST_CONFIG_PENDWR	0x00000040	/* show objects with pending writes */
+#define FSCACHE_OBJLIST_CONFIG_NOPENDWR	0x00000080	/* show objects without pending writes */
+#define FSCACHE_OBJLIST_CONFIG_READS	0x00000100	/* show objects with active reads */
+#define FSCACHE_OBJLIST_CONFIG_NOREADS	0x00000200	/* show objects without active reads */
+#define FSCACHE_OBJLIST_CONFIG_EVENTS	0x00000400	/* show objects with events */
+#define FSCACHE_OBJLIST_CONFIG_NOEVENTS	0x00000800	/* show objects without no events */
+#define FSCACHE_OBJLIST_CONFIG_WORK	0x00001000	/* show objects with slow work */
+#define FSCACHE_OBJLIST_CONFIG_NOWORK	0x00002000	/* show objects without slow work */
+
+	u8		buf[512];	/* key and aux data buffer */
+};
+
+/*
+ * Add an object to the object list
+ * - we use the address of the fscache_object structure as the key into the
+ *   tree
+ */
+void fscache_objlist_add(struct fscache_object *obj)
+{
+	struct fscache_object *xobj;
+	struct rb_node **p = &fscache_object_list.rb_node, *parent = NULL;
+
+	write_lock(&fscache_object_list_lock);
+
+	while (*p) {
+		parent = *p;
+		xobj = rb_entry(parent, struct fscache_object, objlist_link);
+
+		if (obj < xobj)
+			p = &(*p)->rb_left;
+		else if (obj > xobj)
+			p = &(*p)->rb_right;
+		else
+			BUG();
+	}
+
+	rb_link_node(&obj->objlist_link, parent, p);
+	rb_insert_color(&obj->objlist_link, &fscache_object_list);
+
+	write_unlock(&fscache_object_list_lock);
+}
+
+/**
+ * fscache_object_destroy - Note that a cache object is about to be destroyed
+ * @object: The object to be destroyed
+ *
+ * Note the imminent destruction and deallocation of a cache object record.
+ */
+void fscache_object_destroy(struct fscache_object *obj)
+{
+	write_lock(&fscache_object_list_lock);
+
+	BUG_ON(RB_EMPTY_ROOT(&fscache_object_list));
+	rb_erase(&obj->objlist_link, &fscache_object_list);
+
+	write_unlock(&fscache_object_list_lock);
+}
+EXPORT_SYMBOL(fscache_object_destroy);
+
+/*
+ * find the object in the tree on or after the specified index
+ */
+static struct fscache_object *fscache_objlist_lookup(loff_t *_pos)
+{
+	struct fscache_object *pobj, *obj, *minobj = NULL;
+	struct rb_node *p;
+	unsigned long pos;
+
+	if (*_pos >= (unsigned long) ERR_PTR(-ENOENT))
+		return NULL;
+	pos = *_pos;
+
+	/* banners (can't represent line 0 by pos 0 as that would involve
+	 * returning a NULL pointer) */
+	if (pos == 0)
+		return (struct fscache_object *) ++(*_pos);
+	if (pos < 3)
+		return (struct fscache_object *)pos;
+
+	pobj = (struct fscache_object *)pos;
+	p = fscache_object_list.rb_node;
+	while (p) {
+		obj = rb_entry(p, struct fscache_object, objlist_link);
+		if (pobj < obj) {
+			if (!minobj || minobj > obj)
+				minobj = obj;
+			p = p->rb_left;
+		} else if (pobj > obj) {
+			p = p->rb_right;
+		} else {
+			minobj = obj;
+			break;
+		}
+		obj = NULL;
+	}
+
+	if (!minobj)
+		*_pos = (unsigned long) ERR_PTR(-ENOENT);
+	else if (minobj != obj)
+		*_pos = (unsigned long) minobj;
+	return minobj;
+}
+
+/*
+ * set up the iterator to start reading from the first line
+ */
+static void *fscache_objlist_start(struct seq_file *m, loff_t *_pos)
+	__acquires(&fscache_object_list_lock)
+{
+	read_lock(&fscache_object_list_lock);
+	return fscache_objlist_lookup(_pos);
+}
+
+/*
+ * move to the next line
+ */
+static void *fscache_objlist_next(struct seq_file *m, void *v, loff_t *_pos)
+{
+	(*_pos)++;
+	return fscache_objlist_lookup(_pos);
+}
+
+/*
+ * clean up after reading
+ */
+static void fscache_objlist_stop(struct seq_file *m, void *v)
+	__releases(&fscache_object_list_lock)
+{
+	read_unlock(&fscache_object_list_lock);
+}
+
+/*
+ * display an object
+ */
+static int fscache_objlist_show(struct seq_file *m, void *v)
+{
+	struct fscache_objlist_data *data = m->private;
+	struct fscache_object *obj = v;
+	unsigned long config = data->config;
+	uint16_t keylen, auxlen;
+	char _type[3], *type;
+	bool no_cookie;
+	u8 *buf = data->buf, *p;
+
+	if ((unsigned long) v == 1) {
+		seq_puts(m, "OBJECT   PARENT   STAT CHLDN OPS OOP IPR EX READS"
+			 " EM EV F S"
+			 " | NETFS_COOKIE_DEF TY FL NETFS_DATA");
+		if (config & (FSCACHE_OBJLIST_CONFIG_KEY |
+			      FSCACHE_OBJLIST_CONFIG_AUX))
+			seq_puts(m, "       ");
+		if (config & FSCACHE_OBJLIST_CONFIG_KEY)
+			seq_puts(m, "OBJECT_KEY");
+		if ((config & (FSCACHE_OBJLIST_CONFIG_KEY |
+			       FSCACHE_OBJLIST_CONFIG_AUX)) ==
+		    (FSCACHE_OBJLIST_CONFIG_KEY | FSCACHE_OBJLIST_CONFIG_AUX))
+			seq_puts(m, ", ");
+		if (config & FSCACHE_OBJLIST_CONFIG_AUX)
+			seq_puts(m, "AUX_DATA");
+		seq_puts(m, "\n");
+		return 0;
+	}
+
+	if ((unsigned long) v == 2) {
+		seq_puts(m, "======== ======== ==== ===== === === === == ====="
+			 " == == = ="
+			 " | ================ == == ================");
+		if (config & (FSCACHE_OBJLIST_CONFIG_KEY |
+			      FSCACHE_OBJLIST_CONFIG_AUX))
+			seq_puts(m, " ================");
+		seq_puts(m, "\n");
+		return 0;
+	}
+
+	/* filter out any unwanted objects */
+#define FILTER(criterion, _yes, _no)					\
+	do {								\
+		unsigned long yes = FSCACHE_OBJLIST_CONFIG_##_yes;	\
+		unsigned long no = FSCACHE_OBJLIST_CONFIG_##_no;	\
+		if (criterion) {					\
+			if (!(config & yes))				\
+				return 0;				\
+		} else {						\
+			if (!(config & no))				\
+				return 0;				\
+		}							\
+	} while(0)
+
+	if (~config) {
+		FILTER(obj->cookie,
+		       COOKIE, NOCOOKIE);
+		FILTER(obj->state != FSCACHE_OBJECT_ACTIVE ||
+		       obj->n_ops != 0 ||
+		       obj->n_obj_ops != 0 ||
+		       obj->flags ||
+		       !list_empty(&obj->dependents),
+		       BUSY, IDLE);
+		FILTER(test_bit(FSCACHE_OBJECT_PENDING_WRITE, &obj->flags),
+		       PENDWR, NOPENDWR);
+		FILTER(atomic_read(&obj->n_reads),
+		       READS, NOREADS);
+		FILTER(obj->events & obj->event_mask,
+		       EVENTS, NOEVENTS);
+		FILTER(obj->work.flags & ~(1UL << SLOW_WORK_VERY_SLOW),
+		       WORK, NOWORK);
+	}
+
+	seq_printf(m,
+		   "%8x %8x %s %5u %3u %3u %3u %2u %5u %2lx %2lx %1lx %1lx | ",
+		   obj->debug_id,
+		   obj->parent ? obj->parent->debug_id : -1,
+		   fscache_object_states_short[obj->state],
+		   obj->n_children,
+		   obj->n_ops,
+		   obj->n_obj_ops,
+		   obj->n_in_progress,
+		   obj->n_exclusive,
+		   atomic_read(&obj->n_reads),
+		   obj->event_mask & FSCACHE_OBJECT_EVENTS_MASK,
+		   obj->events,
+		   obj->flags,
+		   obj->work.flags);
+
+	no_cookie = true;
+	keylen = auxlen = 0;
+	if (obj->cookie) {
+		spin_lock(&obj->lock);
+		if (obj->cookie) {
+			switch (obj->cookie->def->type) {
+			case 0:
+				type = "IX";
+				break;
+			case 1:
+				type = "DT";
+				break;
+			default:
+				sprintf(_type, "%02u",
+					obj->cookie->def->type);
+				type = _type;
+				break;
+			}
+
+			seq_printf(m, "%-16s %s %2lx %16p",
+				   obj->cookie->def->name,
+				   type,
+				   obj->cookie->flags,
+				   obj->cookie->netfs_data);
+
+			if (obj->cookie->def->get_key &&
+			    config & FSCACHE_OBJLIST_CONFIG_KEY)
+				keylen = obj->cookie->def->get_key(
+					obj->cookie->netfs_data,
+					buf, 400);
+
+			if (obj->cookie->def->get_aux &&
+			    config & FSCACHE_OBJLIST_CONFIG_AUX)
+				auxlen = obj->cookie->def->get_aux(
+					obj->cookie->netfs_data,
+					buf + keylen, 512 - keylen);
+
+			no_cookie = false;
+		}
+		spin_unlock(&obj->lock);
+
+		if (!no_cookie && (keylen > 0 || auxlen > 0)) {
+			seq_printf(m, " ");
+			for (p = buf; keylen > 0; keylen--)
+				seq_printf(m, "%02x", *p++);
+			if (auxlen > 0) {
+				if (config & FSCACHE_OBJLIST_CONFIG_KEY)
+					seq_printf(m, ", ");
+				for (; auxlen > 0; auxlen--)
+					seq_printf(m, "%02x", *p++);
+			}
+		}
+	}
+
+	if (no_cookie)
+		seq_printf(m, "<no_cookie>\n");
+	else
+		seq_printf(m, "\n");
+	return 0;
+}
+
+static const struct seq_operations fscache_objlist_ops = {
+	.start		= fscache_objlist_start,
+	.stop		= fscache_objlist_stop,
+	.next		= fscache_objlist_next,
+	.show		= fscache_objlist_show,
+};
+
+/*
+ * get the configuration for filtering the list
+ */
+static void fscache_objlist_config(struct fscache_objlist_data *data)
+{
+#ifdef CONFIG_KEYS
+	struct user_key_payload *confkey;
+	unsigned long config;
+	struct key *key;
+	const char *buf;
+	int len;
+
+	key = request_key(&key_type_user, "fscache:objlist", NULL);
+	if (IS_ERR(key))
+		goto no_config;
+
+	config = 0;
+	rcu_read_lock();
+
+	confkey = key->payload.data;
+	buf = confkey->data;
+
+	for (len = confkey->datalen - 1; len >= 0; len--) {
+		switch (buf[len]) {
+		case 'K': config |= FSCACHE_OBJLIST_CONFIG_KEY;		break;
+		case 'A': config |= FSCACHE_OBJLIST_CONFIG_AUX;		break;
+		case 'C': config |= FSCACHE_OBJLIST_CONFIG_COOKIE;	break;
+		case 'c': config |= FSCACHE_OBJLIST_CONFIG_NOCOOKIE;	break;
+		case 'B': config |= FSCACHE_OBJLIST_CONFIG_BUSY;	break;
+		case 'b': config |= FSCACHE_OBJLIST_CONFIG_IDLE;	break;
+		case 'W': config |= FSCACHE_OBJLIST_CONFIG_PENDWR;	break;
+		case 'w': config |= FSCACHE_OBJLIST_CONFIG_NOPENDWR;	break;
+		case 'R': config |= FSCACHE_OBJLIST_CONFIG_READS;	break;
+		case 'r': config |= FSCACHE_OBJLIST_CONFIG_NOREADS;	break;
+		case 'S': config |= FSCACHE_OBJLIST_CONFIG_WORK;	break;
+		case 's': config |= FSCACHE_OBJLIST_CONFIG_NOWORK;	break;
+		}
+	}
+
+	rcu_read_unlock();
+	key_put(key);
+
+	if (!(config & (FSCACHE_OBJLIST_CONFIG_COOKIE | FSCACHE_OBJLIST_CONFIG_NOCOOKIE)))
+	    config   |= FSCACHE_OBJLIST_CONFIG_COOKIE | FSCACHE_OBJLIST_CONFIG_NOCOOKIE;
+	if (!(config & (FSCACHE_OBJLIST_CONFIG_BUSY | FSCACHE_OBJLIST_CONFIG_IDLE)))
+	    config   |= FSCACHE_OBJLIST_CONFIG_BUSY | FSCACHE_OBJLIST_CONFIG_IDLE;
+	if (!(config & (FSCACHE_OBJLIST_CONFIG_PENDWR | FSCACHE_OBJLIST_CONFIG_NOPENDWR)))
+	    config   |= FSCACHE_OBJLIST_CONFIG_PENDWR | FSCACHE_OBJLIST_CONFIG_NOPENDWR;
+	if (!(config & (FSCACHE_OBJLIST_CONFIG_READS | FSCACHE_OBJLIST_CONFIG_NOREADS)))
+	    config   |= FSCACHE_OBJLIST_CONFIG_READS | FSCACHE_OBJLIST_CONFIG_NOREADS;
+	if (!(config & (FSCACHE_OBJLIST_CONFIG_EVENTS | FSCACHE_OBJLIST_CONFIG_NOEVENTS)))
+	    config   |= FSCACHE_OBJLIST_CONFIG_EVENTS | FSCACHE_OBJLIST_CONFIG_NOEVENTS;
+	if (!(config & (FSCACHE_OBJLIST_CONFIG_WORK | FSCACHE_OBJLIST_CONFIG_NOWORK)))
+	    config   |= FSCACHE_OBJLIST_CONFIG_WORK | FSCACHE_OBJLIST_CONFIG_NOWORK;
+
+	data->config = config;
+	return;
+
+no_config:
+#endif
+	data->config = ULONG_MAX;
+}
+
+/*
+ * open "/proc/fs/fscache/objects" to provide a list of active objects
+ * - can be configured by a user-defined key added to the caller's keyrings
+ */
+static int fscache_objlist_open(struct inode *inode, struct file *file)
+{
+	struct fscache_objlist_data *data;
+	struct seq_file *m;
+	int ret;
+
+	ret = seq_open(file, &fscache_objlist_ops);
+	if (ret < 0)
+		return ret;
+
+	m = file->private_data;
+
+	/* buffer for key extraction */
+	data = kmalloc(sizeof(struct fscache_objlist_data), GFP_KERNEL);
+	if (!data) {
+		seq_release(inode, file);
+		return -ENOMEM;
+	}
+
+	/* get the configuration key */
+	fscache_objlist_config(data);
+
+	m->private = data;
+	return 0;
+}
+
+/*
+ * clean up on close
+ */
+static int fscache_objlist_release(struct inode *inode, struct file *file)
+{
+	struct seq_file *m = file->private_data;
+
+	kfree(m->private);
+	m->private = NULL;
+	return seq_release(inode, file);
+}
+
+const struct file_operations fscache_objlist_fops = {
+	.owner		= THIS_MODULE,
+	.open		= fscache_objlist_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= fscache_objlist_release,
+};
diff --git a/fs/fscache/object.c b/fs/fscache/object.c
index 392a41b1b79..e513ac599c8 100644
--- a/fs/fscache/object.c
+++ b/fs/fscache/object.c
@@ -14,9 +14,10 @@
 
 #define FSCACHE_DEBUG_LEVEL COOKIE
 #include <linux/module.h>
+#include <linux/seq_file.h>
 #include "internal.h"
 
-const char *fscache_object_states[] = {
+const char *fscache_object_states[FSCACHE_OBJECT__NSTATES] = {
 	[FSCACHE_OBJECT_INIT]		= "OBJECT_INIT",
 	[FSCACHE_OBJECT_LOOKING_UP]	= "OBJECT_LOOKING_UP",
 	[FSCACHE_OBJECT_CREATING]	= "OBJECT_CREATING",
@@ -33,9 +34,28 @@ const char *fscache_object_states[] = {
 };
 EXPORT_SYMBOL(fscache_object_states);
 
+const char fscache_object_states_short[FSCACHE_OBJECT__NSTATES][5] = {
+	[FSCACHE_OBJECT_INIT]		= "INIT",
+	[FSCACHE_OBJECT_LOOKING_UP]	= "LOOK",
+	[FSCACHE_OBJECT_CREATING]	= "CRTN",
+	[FSCACHE_OBJECT_AVAILABLE]	= "AVBL",
+	[FSCACHE_OBJECT_ACTIVE]		= "ACTV",
+	[FSCACHE_OBJECT_UPDATING]	= "UPDT",
+	[FSCACHE_OBJECT_DYING]		= "DYNG",
+	[FSCACHE_OBJECT_LC_DYING]	= "LCDY",
+	[FSCACHE_OBJECT_ABORT_INIT]	= "ABTI",
+	[FSCACHE_OBJECT_RELEASING]	= "RELS",
+	[FSCACHE_OBJECT_RECYCLING]	= "RCYC",
+	[FSCACHE_OBJECT_WITHDRAWING]	= "WTHD",
+	[FSCACHE_OBJECT_DEAD]		= "DEAD",
+};
+
 static void fscache_object_slow_work_put_ref(struct slow_work *);
 static int  fscache_object_slow_work_get_ref(struct slow_work *);
 static void fscache_object_slow_work_execute(struct slow_work *);
+#ifdef CONFIG_SLOW_WORK_PROC
+static void fscache_object_slow_work_desc(struct slow_work *, struct seq_file *);
+#endif
 static void fscache_initialise_object(struct fscache_object *);
 static void fscache_lookup_object(struct fscache_object *);
 static void fscache_object_available(struct fscache_object *);
@@ -45,9 +65,13 @@ static void fscache_enqueue_dependents(struct fscache_object *);
 static void fscache_dequeue_object(struct fscache_object *);
 
 const struct slow_work_ops fscache_object_slow_work_ops = {
+	.owner		= THIS_MODULE,
 	.get_ref	= fscache_object_slow_work_get_ref,
 	.put_ref	= fscache_object_slow_work_put_ref,
 	.execute	= fscache_object_slow_work_execute,
+#ifdef CONFIG_SLOW_WORK_PROC
+	.desc		= fscache_object_slow_work_desc,
+#endif
 };
 EXPORT_SYMBOL(fscache_object_slow_work_ops);
 
@@ -81,6 +105,7 @@ static inline void fscache_done_parent_op(struct fscache_object *object)
 static void fscache_object_state_machine(struct fscache_object *object)
 {
 	enum fscache_object_state new_state;
+	struct fscache_cookie *cookie;
 
 	ASSERT(object != NULL);
 
@@ -120,20 +145,31 @@ static void fscache_object_state_machine(struct fscache_object *object)
 	case FSCACHE_OBJECT_UPDATING:
 		clear_bit(FSCACHE_OBJECT_EV_UPDATE, &object->events);
 		fscache_stat(&fscache_n_updates_run);
+		fscache_stat(&fscache_n_cop_update_object);
 		object->cache->ops->update_object(object);
+		fscache_stat_d(&fscache_n_cop_update_object);
 		goto active_transit;
 
 		/* handle an object dying during lookup or creation */
 	case FSCACHE_OBJECT_LC_DYING:
 		object->event_mask &= ~(1 << FSCACHE_OBJECT_EV_UPDATE);
+		fscache_stat(&fscache_n_cop_lookup_complete);
 		object->cache->ops->lookup_complete(object);
+		fscache_stat_d(&fscache_n_cop_lookup_complete);
 
 		spin_lock(&object->lock);
 		object->state = FSCACHE_OBJECT_DYING;
-		if (test_and_clear_bit(FSCACHE_COOKIE_CREATING,
-				       &object->cookie->flags))
-			wake_up_bit(&object->cookie->flags,
-				    FSCACHE_COOKIE_CREATING);
+		cookie = object->cookie;
+		if (cookie) {
+			if (test_and_clear_bit(FSCACHE_COOKIE_LOOKING_UP,
+					       &cookie->flags))
+				wake_up_bit(&cookie->flags,
+					    FSCACHE_COOKIE_LOOKING_UP);
+			if (test_and_clear_bit(FSCACHE_COOKIE_CREATING,
+					       &cookie->flags))
+				wake_up_bit(&cookie->flags,
+					    FSCACHE_COOKIE_CREATING);
+		}
 		spin_unlock(&object->lock);
 
 		fscache_done_parent_op(object);
@@ -165,6 +201,7 @@ static void fscache_object_state_machine(struct fscache_object *object)
 		}
 		spin_unlock(&object->lock);
 		fscache_enqueue_dependents(object);
+		fscache_start_operations(object);
 		goto terminal_transit;
 
 		/* handle an abort during initialisation */
@@ -316,14 +353,29 @@ static void fscache_object_slow_work_execute(struct slow_work *work)
 
 	_enter("{OBJ%x}", object->debug_id);
 
-	clear_bit(FSCACHE_OBJECT_EV_REQUEUE, &object->events);
-
 	start = jiffies;
 	fscache_object_state_machine(object);
 	fscache_hist(fscache_objs_histogram, start);
 	if (object->events & object->event_mask)
 		fscache_enqueue_object(object);
+	clear_bit(FSCACHE_OBJECT_EV_REQUEUE, &object->events);
+}
+
+/*
+ * describe an object for slow-work debugging
+ */
+#ifdef CONFIG_SLOW_WORK_PROC
+static void fscache_object_slow_work_desc(struct slow_work *work,
+					  struct seq_file *m)
+{
+	struct fscache_object *object =
+		container_of(work, struct fscache_object, work);
+
+	seq_printf(m, "FSC: OBJ%x: %s",
+		   object->debug_id,
+		   fscache_object_states_short[object->state]);
 }
+#endif
 
 /*
  * initialise an object
@@ -376,7 +428,9 @@ static void fscache_initialise_object(struct fscache_object *object)
 			 * binding on to us, so we need to make sure we don't
 			 * add ourself to the list multiple times */
 			if (list_empty(&object->dep_link)) {
+				fscache_stat(&fscache_n_cop_grab_object);
 				object->cache->ops->grab_object(object);
+				fscache_stat_d(&fscache_n_cop_grab_object);
 				list_add(&object->dep_link,
 					 &parent->dependents);
 
@@ -414,6 +468,7 @@ static void fscache_lookup_object(struct fscache_object *object)
 {
 	struct fscache_cookie *cookie = object->cookie;
 	struct fscache_object *parent;
+	int ret;
 
 	_enter("");
 
@@ -438,11 +493,20 @@ static void fscache_lookup_object(struct fscache_object *object)
 	       object->cache->tag->name);
 
 	fscache_stat(&fscache_n_object_lookups);
-	object->cache->ops->lookup_object(object);
+	fscache_stat(&fscache_n_cop_lookup_object);
+	ret = object->cache->ops->lookup_object(object);
+	fscache_stat_d(&fscache_n_cop_lookup_object);
 
 	if (test_bit(FSCACHE_OBJECT_EV_ERROR, &object->events))
 		set_bit(FSCACHE_COOKIE_UNAVAILABLE, &cookie->flags);
 
+	if (ret == -ETIMEDOUT) {
+		/* probably stuck behind another object, so move this one to
+		 * the back of the queue */
+		fscache_stat(&fscache_n_object_lookups_timed_out);
+		set_bit(FSCACHE_OBJECT_EV_REQUEUE, &object->events);
+	}
+
 	_leave("");
 }
 
@@ -546,7 +610,8 @@ static void fscache_object_available(struct fscache_object *object)
 
 	spin_lock(&object->lock);
 
-	if (test_and_clear_bit(FSCACHE_COOKIE_CREATING, &object->cookie->flags))
+	if (object->cookie &&
+	    test_and_clear_bit(FSCACHE_COOKIE_CREATING, &object->cookie->flags))
 		wake_up_bit(&object->cookie->flags, FSCACHE_COOKIE_CREATING);
 
 	fscache_done_parent_op(object);
@@ -562,7 +627,9 @@ static void fscache_object_available(struct fscache_object *object)
 	}
 	spin_unlock(&object->lock);
 
+	fscache_stat(&fscache_n_cop_lookup_complete);
 	object->cache->ops->lookup_complete(object);
+	fscache_stat_d(&fscache_n_cop_lookup_complete);
 	fscache_enqueue_dependents(object);
 
 	fscache_hist(fscache_obj_instantiate_histogram, object->lookup_jif);
@@ -581,11 +648,16 @@ static void fscache_drop_object(struct fscache_object *object)
 
 	_enter("{OBJ%x,%d}", object->debug_id, object->n_children);
 
+	ASSERTCMP(object->cookie, ==, NULL);
+	ASSERT(hlist_unhashed(&object->cookie_link));
+
 	spin_lock(&cache->object_list_lock);
 	list_del_init(&object->cache_link);
 	spin_unlock(&cache->object_list_lock);
 
+	fscache_stat(&fscache_n_cop_drop_object);
 	cache->ops->drop_object(object);
+	fscache_stat_d(&fscache_n_cop_drop_object);
 
 	if (parent) {
 		_debug("release parent OBJ%x {%d}",
@@ -600,7 +672,9 @@ static void fscache_drop_object(struct fscache_object *object)
 	}
 
 	/* this just shifts the object release to the slow work processor */
+	fscache_stat(&fscache_n_cop_put_object);
 	object->cache->ops->put_object(object);
+	fscache_stat_d(&fscache_n_cop_put_object);
 
 	_leave("");
 }
@@ -690,8 +764,12 @@ static int fscache_object_slow_work_get_ref(struct slow_work *work)
 {
 	struct fscache_object *object =
 		container_of(work, struct fscache_object, work);
+	int ret;
 
-	return object->cache->ops->grab_object(object) ? 0 : -EAGAIN;
+	fscache_stat(&fscache_n_cop_grab_object);
+	ret = object->cache->ops->grab_object(object) ? 0 : -EAGAIN;
+	fscache_stat_d(&fscache_n_cop_grab_object);
+	return ret;
 }
 
 /*
@@ -702,7 +780,9 @@ static void fscache_object_slow_work_put_ref(struct slow_work *work)
 	struct fscache_object *object =
 		container_of(work, struct fscache_object, work);
 
-	return object->cache->ops->put_object(object);
+	fscache_stat(&fscache_n_cop_put_object);
+	object->cache->ops->put_object(object);
+	fscache_stat_d(&fscache_n_cop_put_object);
 }
 
 /*
@@ -739,7 +819,9 @@ static void fscache_enqueue_dependents(struct fscache_object *object)
 
 		/* sort onto appropriate lists */
 		fscache_enqueue_object(dep);
+		fscache_stat(&fscache_n_cop_put_object);
 		dep->cache->ops->put_object(dep);
+		fscache_stat_d(&fscache_n_cop_put_object);
 
 		if (!list_empty(&object->dependents))
 			cond_resched_lock(&object->lock);
diff --git a/fs/fscache/operation.c b/fs/fscache/operation.c
index e7f8d53b8b6..313e79a1426 100644
--- a/fs/fscache/operation.c
+++ b/fs/fscache/operation.c
@@ -13,6 +13,7 @@
 
 #define FSCACHE_DEBUG_LEVEL OPERATION
 #include <linux/module.h>
+#include <linux/seq_file.h>
 #include "internal.h"
 
 atomic_t fscache_op_debug_id;
@@ -31,32 +32,33 @@ void fscache_enqueue_operation(struct fscache_operation *op)
 	_enter("{OBJ%x OP%x,%u}",
 	       op->object->debug_id, op->debug_id, atomic_read(&op->usage));
 
+	fscache_set_op_state(op, "EnQ");
+
+	ASSERT(list_empty(&op->pend_link));
 	ASSERT(op->processor != NULL);
 	ASSERTCMP(op->object->state, >=, FSCACHE_OBJECT_AVAILABLE);
 	ASSERTCMP(atomic_read(&op->usage), >, 0);
 
-	if (list_empty(&op->pend_link)) {
-		switch (op->flags & FSCACHE_OP_TYPE) {
-		case FSCACHE_OP_FAST:
-			_debug("queue fast");
-			atomic_inc(&op->usage);
-			if (!schedule_work(&op->fast_work))
-				fscache_put_operation(op);
-			break;
-		case FSCACHE_OP_SLOW:
-			_debug("queue slow");
-			slow_work_enqueue(&op->slow_work);
-			break;
-		case FSCACHE_OP_MYTHREAD:
-			_debug("queue for caller's attention");
-			break;
-		default:
-			printk(KERN_ERR "FS-Cache: Unexpected op type %lx",
-			       op->flags);
-			BUG();
-			break;
-		}
-		fscache_stat(&fscache_n_op_enqueue);
+	fscache_stat(&fscache_n_op_enqueue);
+	switch (op->flags & FSCACHE_OP_TYPE) {
+	case FSCACHE_OP_FAST:
+		_debug("queue fast");
+		atomic_inc(&op->usage);
+		if (!schedule_work(&op->fast_work))
+			fscache_put_operation(op);
+		break;
+	case FSCACHE_OP_SLOW:
+		_debug("queue slow");
+		slow_work_enqueue(&op->slow_work);
+		break;
+	case FSCACHE_OP_MYTHREAD:
+		_debug("queue for caller's attention");
+		break;
+	default:
+		printk(KERN_ERR "FS-Cache: Unexpected op type %lx",
+		       op->flags);
+		BUG();
+		break;
 	}
 }
 EXPORT_SYMBOL(fscache_enqueue_operation);
@@ -67,6 +69,8 @@ EXPORT_SYMBOL(fscache_enqueue_operation);
 static void fscache_run_op(struct fscache_object *object,
 			   struct fscache_operation *op)
 {
+	fscache_set_op_state(op, "Run");
+
 	object->n_in_progress++;
 	if (test_and_clear_bit(FSCACHE_OP_WAITING, &op->flags))
 		wake_up_bit(&op->flags, FSCACHE_OP_WAITING);
@@ -87,9 +91,12 @@ int fscache_submit_exclusive_op(struct fscache_object *object,
 
 	_enter("{OBJ%x OP%x},", object->debug_id, op->debug_id);
 
+	fscache_set_op_state(op, "SubmitX");
+
 	spin_lock(&object->lock);
 	ASSERTCMP(object->n_ops, >=, object->n_in_progress);
 	ASSERTCMP(object->n_ops, >=, object->n_exclusive);
+	ASSERT(list_empty(&op->pend_link));
 
 	ret = -ENOBUFS;
 	if (fscache_object_is_active(object)) {
@@ -190,9 +197,12 @@ int fscache_submit_op(struct fscache_object *object,
 
 	ASSERTCMP(atomic_read(&op->usage), >, 0);
 
+	fscache_set_op_state(op, "Submit");
+
 	spin_lock(&object->lock);
 	ASSERTCMP(object->n_ops, >=, object->n_in_progress);
 	ASSERTCMP(object->n_ops, >=, object->n_exclusive);
+	ASSERT(list_empty(&op->pend_link));
 
 	ostate = object->state;
 	smp_rmb();
@@ -222,6 +232,11 @@ int fscache_submit_op(struct fscache_object *object,
 		list_add_tail(&op->pend_link, &object->pending_ops);
 		fscache_stat(&fscache_n_op_pend);
 		ret = 0;
+	} else if (object->state == FSCACHE_OBJECT_DYING ||
+		   object->state == FSCACHE_OBJECT_LC_DYING ||
+		   object->state == FSCACHE_OBJECT_WITHDRAWING) {
+		fscache_stat(&fscache_n_op_rejected);
+		ret = -ENOBUFS;
 	} else if (!test_bit(FSCACHE_IOERROR, &object->cache->flags)) {
 		fscache_report_unexpected_submission(object, op, ostate);
 		ASSERT(!fscache_object_is_active(object));
@@ -264,12 +279,7 @@ void fscache_start_operations(struct fscache_object *object)
 			stop = true;
 		}
 		list_del_init(&op->pend_link);
-		object->n_in_progress++;
-
-		if (test_and_clear_bit(FSCACHE_OP_WAITING, &op->flags))
-			wake_up_bit(&op->flags, FSCACHE_OP_WAITING);
-		if (op->processor)
-			fscache_enqueue_operation(op);
+		fscache_run_op(object, op);
 
 		/* the pending queue was holding a ref on the object */
 		fscache_put_operation(op);
@@ -282,6 +292,36 @@ void fscache_start_operations(struct fscache_object *object)
 }
 
 /*
+ * cancel an operation that's pending on an object
+ */
+int fscache_cancel_op(struct fscache_operation *op)
+{
+	struct fscache_object *object = op->object;
+	int ret;
+
+	_enter("OBJ%x OP%x}", op->object->debug_id, op->debug_id);
+
+	spin_lock(&object->lock);
+
+	ret = -EBUSY;
+	if (!list_empty(&op->pend_link)) {
+		fscache_stat(&fscache_n_op_cancelled);
+		list_del_init(&op->pend_link);
+		object->n_ops--;
+		if (test_bit(FSCACHE_OP_EXCLUSIVE, &op->flags))
+			object->n_exclusive--;
+		if (test_and_clear_bit(FSCACHE_OP_WAITING, &op->flags))
+			wake_up_bit(&op->flags, FSCACHE_OP_WAITING);
+		fscache_put_operation(op);
+		ret = 0;
+	}
+
+	spin_unlock(&object->lock);
+	_leave(" = %d", ret);
+	return ret;
+}
+
+/*
  * release an operation
  * - queues pending ops if this is the last in-progress op
  */
@@ -298,6 +338,8 @@ void fscache_put_operation(struct fscache_operation *op)
 	if (!atomic_dec_and_test(&op->usage))
 		return;
 
+	fscache_set_op_state(op, "Put");
+
 	_debug("PUT OP");
 	if (test_and_set_bit(FSCACHE_OP_DEAD, &op->flags))
 		BUG();
@@ -311,6 +353,9 @@ void fscache_put_operation(struct fscache_operation *op)
 
 	object = op->object;
 
+	if (test_bit(FSCACHE_OP_DEC_READ_CNT, &op->flags))
+		atomic_dec(&object->n_reads);
+
 	/* now... we may get called with the object spinlock held, so we
 	 * complete the cleanup here only if we can immediately acquire the
 	 * lock, and defer it otherwise */
@@ -452,8 +497,27 @@ static void fscache_op_execute(struct slow_work *work)
 	_leave("");
 }
 
+/*
+ * describe an operation for slow-work debugging
+ */
+#ifdef CONFIG_SLOW_WORK_PROC
+static void fscache_op_desc(struct slow_work *work, struct seq_file *m)
+{
+	struct fscache_operation *op =
+		container_of(work, struct fscache_operation, slow_work);
+
+	seq_printf(m, "FSC: OBJ%x OP%x: %s/%s fl=%lx",
+		   op->object->debug_id, op->debug_id,
+		   op->name, op->state, op->flags);
+}
+#endif
+
 const struct slow_work_ops fscache_op_slow_work_ops = {
+	.owner		= THIS_MODULE,
 	.get_ref	= fscache_op_get_ref,
 	.put_ref	= fscache_op_put_ref,
 	.execute	= fscache_op_execute,
+#ifdef CONFIG_SLOW_WORK_PROC
+	.desc		= fscache_op_desc,
+#endif
 };
diff --git a/fs/fscache/page.c b/fs/fscache/page.c
index 2568e0eb644..c598ea4c4e7 100644
--- a/fs/fscache/page.c
+++ b/fs/fscache/page.c
@@ -43,18 +43,102 @@ void __fscache_wait_on_page_write(struct fscache_cookie *cookie, struct page *pa
 EXPORT_SYMBOL(__fscache_wait_on_page_write);
 
 /*
- * note that a page has finished being written to the cache
+ * decide whether a page can be released, possibly by cancelling a store to it
+ * - we're allowed to sleep if __GFP_WAIT is flagged
  */
-static void fscache_end_page_write(struct fscache_cookie *cookie, struct page *page)
+bool __fscache_maybe_release_page(struct fscache_cookie *cookie,
+				  struct page *page,
+				  gfp_t gfp)
 {
 	struct page *xpage;
+	void *val;
+
+	_enter("%p,%p,%x", cookie, page, gfp);
+
+	rcu_read_lock();
+	val = radix_tree_lookup(&cookie->stores, page->index);
+	if (!val) {
+		rcu_read_unlock();
+		fscache_stat(&fscache_n_store_vmscan_not_storing);
+		__fscache_uncache_page(cookie, page);
+		return true;
+	}
+
+	/* see if the page is actually undergoing storage - if so we can't get
+	 * rid of it till the cache has finished with it */
+	if (radix_tree_tag_get(&cookie->stores, page->index,
+			       FSCACHE_COOKIE_STORING_TAG)) {
+		rcu_read_unlock();
+		goto page_busy;
+	}
+
+	/* the page is pending storage, so we attempt to cancel the store and
+	 * discard the store request so that the page can be reclaimed */
+	spin_lock(&cookie->stores_lock);
+	rcu_read_unlock();
+
+	if (radix_tree_tag_get(&cookie->stores, page->index,
+			       FSCACHE_COOKIE_STORING_TAG)) {
+		/* the page started to undergo storage whilst we were looking,
+		 * so now we can only wait or return */
+		spin_unlock(&cookie->stores_lock);
+		goto page_busy;
+	}
 
-	spin_lock(&cookie->lock);
 	xpage = radix_tree_delete(&cookie->stores, page->index);
-	spin_unlock(&cookie->lock);
-	ASSERT(xpage != NULL);
+	spin_unlock(&cookie->stores_lock);
+
+	if (xpage) {
+		fscache_stat(&fscache_n_store_vmscan_cancelled);
+		fscache_stat(&fscache_n_store_radix_deletes);
+		ASSERTCMP(xpage, ==, page);
+	} else {
+		fscache_stat(&fscache_n_store_vmscan_gone);
+	}
 
 	wake_up_bit(&cookie->flags, 0);
+	if (xpage)
+		page_cache_release(xpage);
+	__fscache_uncache_page(cookie, page);
+	return true;
+
+page_busy:
+	/* we might want to wait here, but that could deadlock the allocator as
+	 * the slow-work threads writing to the cache may all end up sleeping
+	 * on memory allocation */
+	fscache_stat(&fscache_n_store_vmscan_busy);
+	return false;
+}
+EXPORT_SYMBOL(__fscache_maybe_release_page);
+
+/*
+ * note that a page has finished being written to the cache
+ */
+static void fscache_end_page_write(struct fscache_object *object,
+				   struct page *page)
+{
+	struct fscache_cookie *cookie;
+	struct page *xpage = NULL;
+
+	spin_lock(&object->lock);
+	cookie = object->cookie;
+	if (cookie) {
+		/* delete the page from the tree if it is now no longer
+		 * pending */
+		spin_lock(&cookie->stores_lock);
+		radix_tree_tag_clear(&cookie->stores, page->index,
+				     FSCACHE_COOKIE_STORING_TAG);
+		if (!radix_tree_tag_get(&cookie->stores, page->index,
+					FSCACHE_COOKIE_PENDING_TAG)) {
+			fscache_stat(&fscache_n_store_radix_deletes);
+			xpage = radix_tree_delete(&cookie->stores, page->index);
+		}
+		spin_unlock(&cookie->stores_lock);
+		wake_up_bit(&cookie->flags, 0);
+	}
+	spin_unlock(&object->lock);
+	if (xpage)
+		page_cache_release(xpage);
 }
 
 /*
@@ -63,14 +147,21 @@ static void fscache_end_page_write(struct fscache_cookie *cookie, struct page *p
 static void fscache_attr_changed_op(struct fscache_operation *op)
 {
 	struct fscache_object *object = op->object;
+	int ret;
 
 	_enter("{OBJ%x OP%x}", object->debug_id, op->debug_id);
 
 	fscache_stat(&fscache_n_attr_changed_calls);
 
-	if (fscache_object_is_active(object) &&
-	    object->cache->ops->attr_changed(object) < 0)
-		fscache_abort_object(object);
+	if (fscache_object_is_active(object)) {
+		fscache_set_op_state(op, "CallFS");
+		fscache_stat(&fscache_n_cop_attr_changed);
+		ret = object->cache->ops->attr_changed(object);
+		fscache_stat_d(&fscache_n_cop_attr_changed);
+		fscache_set_op_state(op, "Done");
+		if (ret < 0)
+			fscache_abort_object(object);
+	}
 
 	_leave("");
 }
@@ -99,6 +190,7 @@ int __fscache_attr_changed(struct fscache_cookie *cookie)
 	fscache_operation_init(op, NULL);
 	fscache_operation_init_slow(op, fscache_attr_changed_op);
 	op->flags = FSCACHE_OP_SLOW | (1 << FSCACHE_OP_EXCLUSIVE);
+	fscache_set_op_name(op, "Attr");
 
 	spin_lock(&cookie->lock);
 
@@ -184,6 +276,7 @@ static struct fscache_retrieval *fscache_alloc_retrieval(
 	op->start_time	= jiffies;
 	INIT_WORK(&op->op.fast_work, fscache_retrieval_work);
 	INIT_LIST_HEAD(&op->to_do);
+	fscache_set_op_name(&op->op, "Retr");
 	return op;
 }
 
@@ -221,6 +314,43 @@ static int fscache_wait_for_deferred_lookup(struct fscache_cookie *cookie)
 }
 
 /*
+ * wait for an object to become active (or dead)
+ */
+static int fscache_wait_for_retrieval_activation(struct fscache_object *object,
+						 struct fscache_retrieval *op,
+						 atomic_t *stat_op_waits,
+						 atomic_t *stat_object_dead)
+{
+	int ret;
+
+	if (!test_bit(FSCACHE_OP_WAITING, &op->op.flags))
+		goto check_if_dead;
+
+	_debug(">>> WT");
+	fscache_stat(stat_op_waits);
+	if (wait_on_bit(&op->op.flags, FSCACHE_OP_WAITING,
+			fscache_wait_bit_interruptible,
+			TASK_INTERRUPTIBLE) < 0) {
+		ret = fscache_cancel_op(&op->op);
+		if (ret == 0)
+			return -ERESTARTSYS;
+
+		/* it's been removed from the pending queue by another party,
+		 * so we should get to run shortly */
+		wait_on_bit(&op->op.flags, FSCACHE_OP_WAITING,
+			    fscache_wait_bit, TASK_UNINTERRUPTIBLE);
+	}
+	_debug("<<< GO");
+
+check_if_dead:
+	if (unlikely(fscache_object_is_dead(object))) {
+		fscache_stat(stat_object_dead);
+		return -ENOBUFS;
+	}
+	return 0;
+}
+
+/*
  * read a page from the cache or allocate a block in which to store it
  * - we return:
  *   -ENOMEM	- out of memory, nothing done
@@ -257,6 +387,7 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
 		_leave(" = -ENOMEM");
 		return -ENOMEM;
 	}
+	fscache_set_op_name(&op->op, "RetrRA1");
 
 	spin_lock(&cookie->lock);
 
@@ -267,6 +398,9 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
 
 	ASSERTCMP(object->state, >, FSCACHE_OBJECT_LOOKING_UP);
 
+	atomic_inc(&object->n_reads);
+	set_bit(FSCACHE_OP_DEC_READ_CNT, &op->op.flags);
+
 	if (fscache_submit_op(object, &op->op) < 0)
 		goto nobufs_unlock;
 	spin_unlock(&cookie->lock);
@@ -279,23 +413,27 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
 
 	/* we wait for the operation to become active, and then process it
 	 * *here*, in this thread, and not in the thread pool */
-	if (test_bit(FSCACHE_OP_WAITING, &op->op.flags)) {
-		_debug(">>> WT");
-		fscache_stat(&fscache_n_retrieval_op_waits);
-		wait_on_bit(&op->op.flags, FSCACHE_OP_WAITING,
-			    fscache_wait_bit, TASK_UNINTERRUPTIBLE);
-		_debug("<<< GO");
-	}
+	ret = fscache_wait_for_retrieval_activation(
+		object, op,
+		__fscache_stat(&fscache_n_retrieval_op_waits),
+		__fscache_stat(&fscache_n_retrievals_object_dead));
+	if (ret < 0)
+		goto error;
 
 	/* ask the cache to honour the operation */
 	if (test_bit(FSCACHE_COOKIE_NO_DATA_YET, &object->cookie->flags)) {
+		fscache_stat(&fscache_n_cop_allocate_page);
 		ret = object->cache->ops->allocate_page(op, page, gfp);
+		fscache_stat_d(&fscache_n_cop_allocate_page);
 		if (ret == 0)
 			ret = -ENODATA;
 	} else {
+		fscache_stat(&fscache_n_cop_read_or_alloc_page);
 		ret = object->cache->ops->read_or_alloc_page(op, page, gfp);
+		fscache_stat_d(&fscache_n_cop_read_or_alloc_page);
 	}
 
+error:
 	if (ret == -ENOMEM)
 		fscache_stat(&fscache_n_retrievals_nomem);
 	else if (ret == -ERESTARTSYS)
@@ -347,7 +485,6 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
 				  void *context,
 				  gfp_t gfp)
 {
-	fscache_pages_retrieval_func_t func;
 	struct fscache_retrieval *op;
 	struct fscache_object *object;
 	int ret;
@@ -369,6 +506,7 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
 	op = fscache_alloc_retrieval(mapping, end_io_func, context);
 	if (!op)
 		return -ENOMEM;
+	fscache_set_op_name(&op->op, "RetrRAN");
 
 	spin_lock(&cookie->lock);
 
@@ -377,6 +515,9 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
 	object = hlist_entry(cookie->backing_objects.first,
 			     struct fscache_object, cookie_link);
 
+	atomic_inc(&object->n_reads);
+	set_bit(FSCACHE_OP_DEC_READ_CNT, &op->op.flags);
+
 	if (fscache_submit_op(object, &op->op) < 0)
 		goto nobufs_unlock;
 	spin_unlock(&cookie->lock);
@@ -389,21 +530,27 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
 
 	/* we wait for the operation to become active, and then process it
 	 * *here*, in this thread, and not in the thread pool */
-	if (test_bit(FSCACHE_OP_WAITING, &op->op.flags)) {
-		_debug(">>> WT");
-		fscache_stat(&fscache_n_retrieval_op_waits);
-		wait_on_bit(&op->op.flags, FSCACHE_OP_WAITING,
-			    fscache_wait_bit, TASK_UNINTERRUPTIBLE);
-		_debug("<<< GO");
-	}
+	ret = fscache_wait_for_retrieval_activation(
+		object, op,
+		__fscache_stat(&fscache_n_retrieval_op_waits),
+		__fscache_stat(&fscache_n_retrievals_object_dead));
+	if (ret < 0)
+		goto error;
 
 	/* ask the cache to honour the operation */
-	if (test_bit(FSCACHE_COOKIE_NO_DATA_YET, &object->cookie->flags))
-		func = object->cache->ops->allocate_pages;
-	else
-		func = object->cache->ops->read_or_alloc_pages;
-	ret = func(op, pages, nr_pages, gfp);
+	if (test_bit(FSCACHE_COOKIE_NO_DATA_YET, &object->cookie->flags)) {
+		fscache_stat(&fscache_n_cop_allocate_pages);
+		ret = object->cache->ops->allocate_pages(
+			op, pages, nr_pages, gfp);
+		fscache_stat_d(&fscache_n_cop_allocate_pages);
+	} else {
+		fscache_stat(&fscache_n_cop_read_or_alloc_pages);
+		ret = object->cache->ops->read_or_alloc_pages(
+			op, pages, nr_pages, gfp);
+		fscache_stat_d(&fscache_n_cop_read_or_alloc_pages);
+	}
 
+error:
 	if (ret == -ENOMEM)
 		fscache_stat(&fscache_n_retrievals_nomem);
 	else if (ret == -ERESTARTSYS)
@@ -461,6 +608,7 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
 	op = fscache_alloc_retrieval(page->mapping, NULL, NULL);
 	if (!op)
 		return -ENOMEM;
+	fscache_set_op_name(&op->op, "RetrAL1");
 
 	spin_lock(&cookie->lock);
 
@@ -475,18 +623,22 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
 
 	fscache_stat(&fscache_n_alloc_ops);
 
-	if (test_bit(FSCACHE_OP_WAITING, &op->op.flags)) {
-		_debug(">>> WT");
-		fscache_stat(&fscache_n_alloc_op_waits);
-		wait_on_bit(&op->op.flags, FSCACHE_OP_WAITING,
-			    fscache_wait_bit, TASK_UNINTERRUPTIBLE);
-		_debug("<<< GO");
-	}
+	ret = fscache_wait_for_retrieval_activation(
+		object, op,
+		__fscache_stat(&fscache_n_alloc_op_waits),
+		__fscache_stat(&fscache_n_allocs_object_dead));
+	if (ret < 0)
+		goto error;
 
 	/* ask the cache to honour the operation */
+	fscache_stat(&fscache_n_cop_allocate_page);
 	ret = object->cache->ops->allocate_page(op, page, gfp);
+	fscache_stat_d(&fscache_n_cop_allocate_page);
 
-	if (ret < 0)
+error:
+	if (ret == -ERESTARTSYS)
+		fscache_stat(&fscache_n_allocs_intr);
+	else if (ret < 0)
 		fscache_stat(&fscache_n_allocs_nobufs);
 	else
 		fscache_stat(&fscache_n_allocs_ok);
@@ -521,7 +673,7 @@ static void fscache_write_op(struct fscache_operation *_op)
 	struct fscache_storage *op =
 		container_of(_op, struct fscache_storage, op);
 	struct fscache_object *object = op->op.object;
-	struct fscache_cookie *cookie = object->cookie;
+	struct fscache_cookie *cookie;
 	struct page *page;
 	unsigned n;
 	void *results[1];
@@ -529,16 +681,19 @@ static void fscache_write_op(struct fscache_operation *_op)
 
 	_enter("{OP%x,%d}", op->op.debug_id, atomic_read(&op->op.usage));
 
-	spin_lock(&cookie->lock);
+	fscache_set_op_state(&op->op, "GetPage");
+
 	spin_lock(&object->lock);
+	cookie = object->cookie;
 
-	if (!fscache_object_is_active(object)) {
+	if (!fscache_object_is_active(object) || !cookie) {
 		spin_unlock(&object->lock);
-		spin_unlock(&cookie->lock);
 		_leave("");
 		return;
 	}
 
+	spin_lock(&cookie->stores_lock);
+
 	fscache_stat(&fscache_n_store_calls);
 
 	/* find a page to store */
@@ -549,23 +704,35 @@ static void fscache_write_op(struct fscache_operation *_op)
 		goto superseded;
 	page = results[0];
 	_debug("gang %d [%lx]", n, page->index);
-	if (page->index > op->store_limit)
+	if (page->index > op->store_limit) {
+		fscache_stat(&fscache_n_store_pages_over_limit);
 		goto superseded;
+	}
 
-	radix_tree_tag_clear(&cookie->stores, page->index,
-			     FSCACHE_COOKIE_PENDING_TAG);
+	if (page) {
+		radix_tree_tag_set(&cookie->stores, page->index,
+				   FSCACHE_COOKIE_STORING_TAG);
+		radix_tree_tag_clear(&cookie->stores, page->index,
+				     FSCACHE_COOKIE_PENDING_TAG);
+	}
 
+	spin_unlock(&cookie->stores_lock);
 	spin_unlock(&object->lock);
-	spin_unlock(&cookie->lock);
 
 	if (page) {
+		fscache_set_op_state(&op->op, "Store");
+		fscache_stat(&fscache_n_store_pages);
+		fscache_stat(&fscache_n_cop_write_page);
 		ret = object->cache->ops->write_page(op, page);
-		fscache_end_page_write(cookie, page);
-		page_cache_release(page);
-		if (ret < 0)
+		fscache_stat_d(&fscache_n_cop_write_page);
+		fscache_set_op_state(&op->op, "EndWrite");
+		fscache_end_page_write(object, page);
+		if (ret < 0) {
+			fscache_set_op_state(&op->op, "Abort");
 			fscache_abort_object(object);
-		else
+		} else {
 			fscache_enqueue_operation(&op->op);
+		}
 	}
 
 	_leave("");
@@ -575,9 +742,9 @@ superseded:
 	/* this writer is going away and there aren't any more things to
 	 * write */
 	_debug("cease");
+	spin_unlock(&cookie->stores_lock);
 	clear_bit(FSCACHE_OBJECT_PENDING_WRITE, &object->flags);
 	spin_unlock(&object->lock);
-	spin_unlock(&cookie->lock);
 	_leave("");
 }
 
@@ -634,6 +801,7 @@ int __fscache_write_page(struct fscache_cookie *cookie,
 	fscache_operation_init(&op->op, fscache_release_write_op);
 	fscache_operation_init_slow(&op->op, fscache_write_op);
 	op->op.flags = FSCACHE_OP_SLOW | (1 << FSCACHE_OP_WAITING);
+	fscache_set_op_name(&op->op, "Write1");
 
 	ret = radix_tree_preload(gfp & ~__GFP_HIGHMEM);
 	if (ret < 0)
@@ -652,6 +820,7 @@ int __fscache_write_page(struct fscache_cookie *cookie,
 	/* add the page to the pending-storage radix tree on the backing
 	 * object */
 	spin_lock(&object->lock);
+	spin_lock(&cookie->stores_lock);
 
 	_debug("store limit %llx", (unsigned long long) object->store_limit);
 
@@ -672,6 +841,7 @@ int __fscache_write_page(struct fscache_cookie *cookie,
 	if (test_and_set_bit(FSCACHE_OBJECT_PENDING_WRITE, &object->flags))
 		goto already_pending;
 
+	spin_unlock(&cookie->stores_lock);
 	spin_unlock(&object->lock);
 
 	op->op.debug_id	= atomic_inc_return(&fscache_op_debug_id);
@@ -693,6 +863,7 @@ int __fscache_write_page(struct fscache_cookie *cookie,
 already_queued:
 	fscache_stat(&fscache_n_stores_again);
 already_pending:
+	spin_unlock(&cookie->stores_lock);
 	spin_unlock(&object->lock);
 	spin_unlock(&cookie->lock);
 	radix_tree_preload_end();
@@ -702,7 +873,9 @@ already_pending:
 	return 0;
 
 submit_failed:
+	spin_lock(&cookie->stores_lock);
 	radix_tree_delete(&cookie->stores, page->index);
+	spin_unlock(&cookie->stores_lock);
 	page_cache_release(page);
 	ret = -ENOBUFS;
 	goto nobufs;
@@ -763,7 +936,9 @@ void __fscache_uncache_page(struct fscache_cookie *cookie, struct page *page)
 	if (TestClearPageFsCache(page) &&
 	    object->cache->ops->uncache_page) {
 		/* the cache backend releases the cookie lock */
+		fscache_stat(&fscache_n_cop_uncache_page);
 		object->cache->ops->uncache_page(object, page);
+		fscache_stat_d(&fscache_n_cop_uncache_page);
 		goto done;
 	}
 
diff --git a/fs/fscache/proc.c b/fs/fscache/proc.c
index beeab44bc31..1d9e4951a59 100644
--- a/fs/fscache/proc.c
+++ b/fs/fscache/proc.c
@@ -37,10 +37,20 @@ int __init fscache_proc_init(void)
 		goto error_histogram;
 #endif
 
+#ifdef CONFIG_FSCACHE_OBJECT_LIST
+	if (!proc_create("fs/fscache/objects", S_IFREG | 0444, NULL,
+			 &fscache_objlist_fops))
+		goto error_objects;
+#endif
+
 	_leave(" = 0");
 	return 0;
 
+#ifdef CONFIG_FSCACHE_OBJECT_LIST
+error_objects:
+#endif
 #ifdef CONFIG_FSCACHE_HISTOGRAM
+	remove_proc_entry("fs/fscache/histogram", NULL);
 error_histogram:
 #endif
 #ifdef CONFIG_FSCACHE_STATS
@@ -58,6 +68,9 @@ error_dir:
  */
 void fscache_proc_cleanup(void)
 {
+#ifdef CONFIG_FSCACHE_OBJECT_LIST
+	remove_proc_entry("fs/fscache/objects", NULL);
+#endif
 #ifdef CONFIG_FSCACHE_HISTOGRAM
 	remove_proc_entry("fs/fscache/histogram", NULL);
 #endif
diff --git a/fs/fscache/stats.c b/fs/fscache/stats.c
index 65deb99e756..46435f3aae6 100644
--- a/fs/fscache/stats.c
+++ b/fs/fscache/stats.c
@@ -25,6 +25,8 @@ atomic_t fscache_n_op_requeue;
 atomic_t fscache_n_op_deferred_release;
 atomic_t fscache_n_op_release;
 atomic_t fscache_n_op_gc;
+atomic_t fscache_n_op_cancelled;
+atomic_t fscache_n_op_rejected;
 
 atomic_t fscache_n_attr_changed;
 atomic_t fscache_n_attr_changed_ok;
@@ -36,6 +38,8 @@ atomic_t fscache_n_allocs;
 atomic_t fscache_n_allocs_ok;
 atomic_t fscache_n_allocs_wait;
 atomic_t fscache_n_allocs_nobufs;
+atomic_t fscache_n_allocs_intr;
+atomic_t fscache_n_allocs_object_dead;
 atomic_t fscache_n_alloc_ops;
 atomic_t fscache_n_alloc_op_waits;
 
@@ -46,6 +50,7 @@ atomic_t fscache_n_retrievals_nodata;
 atomic_t fscache_n_retrievals_nobufs;
 atomic_t fscache_n_retrievals_intr;
 atomic_t fscache_n_retrievals_nomem;
+atomic_t fscache_n_retrievals_object_dead;
 atomic_t fscache_n_retrieval_ops;
 atomic_t fscache_n_retrieval_op_waits;
 
@@ -56,6 +61,14 @@ atomic_t fscache_n_stores_nobufs;
 atomic_t fscache_n_stores_oom;
 atomic_t fscache_n_store_ops;
 atomic_t fscache_n_store_calls;
+atomic_t fscache_n_store_pages;
+atomic_t fscache_n_store_radix_deletes;
+atomic_t fscache_n_store_pages_over_limit;
+
+atomic_t fscache_n_store_vmscan_not_storing;
+atomic_t fscache_n_store_vmscan_gone;
+atomic_t fscache_n_store_vmscan_busy;
+atomic_t fscache_n_store_vmscan_cancelled;
 
 atomic_t fscache_n_marks;
 atomic_t fscache_n_uncaches;
@@ -74,6 +87,7 @@ atomic_t fscache_n_updates_run;
 atomic_t fscache_n_relinquishes;
 atomic_t fscache_n_relinquishes_null;
 atomic_t fscache_n_relinquishes_waitcrt;
+atomic_t fscache_n_relinquishes_retire;
 
 atomic_t fscache_n_cookie_index;
 atomic_t fscache_n_cookie_data;
@@ -84,6 +98,7 @@ atomic_t fscache_n_object_no_alloc;
 atomic_t fscache_n_object_lookups;
 atomic_t fscache_n_object_lookups_negative;
 atomic_t fscache_n_object_lookups_positive;
+atomic_t fscache_n_object_lookups_timed_out;
 atomic_t fscache_n_object_created;
 atomic_t fscache_n_object_avail;
 atomic_t fscache_n_object_dead;
@@ -93,6 +108,23 @@ atomic_t fscache_n_checkaux_okay;
 atomic_t fscache_n_checkaux_update;
 atomic_t fscache_n_checkaux_obsolete;
 
+atomic_t fscache_n_cop_alloc_object;
+atomic_t fscache_n_cop_lookup_object;
+atomic_t fscache_n_cop_lookup_complete;
+atomic_t fscache_n_cop_grab_object;
+atomic_t fscache_n_cop_update_object;
+atomic_t fscache_n_cop_drop_object;
+atomic_t fscache_n_cop_put_object;
+atomic_t fscache_n_cop_sync_cache;
+atomic_t fscache_n_cop_attr_changed;
+atomic_t fscache_n_cop_read_or_alloc_page;
+atomic_t fscache_n_cop_read_or_alloc_pages;
+atomic_t fscache_n_cop_allocate_page;
+atomic_t fscache_n_cop_allocate_pages;
+atomic_t fscache_n_cop_write_page;
+atomic_t fscache_n_cop_uncache_page;
+atomic_t fscache_n_cop_dissociate_pages;
+
 /*
  * display the general statistics
  */
@@ -129,10 +161,11 @@ static int fscache_stats_show(struct seq_file *m, void *v)
 		   atomic_read(&fscache_n_acquires_nobufs),
 		   atomic_read(&fscache_n_acquires_oom));
 
-	seq_printf(m, "Lookups: n=%u neg=%u pos=%u crt=%u\n",
+	seq_printf(m, "Lookups: n=%u neg=%u pos=%u crt=%u tmo=%u\n",
 		   atomic_read(&fscache_n_object_lookups),
 		   atomic_read(&fscache_n_object_lookups_negative),
 		   atomic_read(&fscache_n_object_lookups_positive),
+		   atomic_read(&fscache_n_object_lookups_timed_out),
 		   atomic_read(&fscache_n_object_created));
 
 	seq_printf(m, "Updates: n=%u nul=%u run=%u\n",
@@ -140,10 +173,11 @@ static int fscache_stats_show(struct seq_file *m, void *v)
 		   atomic_read(&fscache_n_updates_null),
 		   atomic_read(&fscache_n_updates_run));
 
-	seq_printf(m, "Relinqs: n=%u nul=%u wcr=%u\n",
+	seq_printf(m, "Relinqs: n=%u nul=%u wcr=%u rtr=%u\n",
 		   atomic_read(&fscache_n_relinquishes),
 		   atomic_read(&fscache_n_relinquishes_null),
-		   atomic_read(&fscache_n_relinquishes_waitcrt));
+		   atomic_read(&fscache_n_relinquishes_waitcrt),
+		   atomic_read(&fscache_n_relinquishes_retire));
 
 	seq_printf(m, "AttrChg: n=%u ok=%u nbf=%u oom=%u run=%u\n",
 		   atomic_read(&fscache_n_attr_changed),
@@ -152,14 +186,16 @@ static int fscache_stats_show(struct seq_file *m, void *v)
 		   atomic_read(&fscache_n_attr_changed_nomem),
 		   atomic_read(&fscache_n_attr_changed_calls));
 
-	seq_printf(m, "Allocs : n=%u ok=%u wt=%u nbf=%u\n",
+	seq_printf(m, "Allocs : n=%u ok=%u wt=%u nbf=%u int=%u\n",
 		   atomic_read(&fscache_n_allocs),
 		   atomic_read(&fscache_n_allocs_ok),
 		   atomic_read(&fscache_n_allocs_wait),
-		   atomic_read(&fscache_n_allocs_nobufs));
-	seq_printf(m, "Allocs : ops=%u owt=%u\n",
+		   atomic_read(&fscache_n_allocs_nobufs),
+		   atomic_read(&fscache_n_allocs_intr));
+	seq_printf(m, "Allocs : ops=%u owt=%u abt=%u\n",
 		   atomic_read(&fscache_n_alloc_ops),
-		   atomic_read(&fscache_n_alloc_op_waits));
+		   atomic_read(&fscache_n_alloc_op_waits),
+		   atomic_read(&fscache_n_allocs_object_dead));
 
 	seq_printf(m, "Retrvls: n=%u ok=%u wt=%u nod=%u nbf=%u"
 		   " int=%u oom=%u\n",
@@ -170,9 +206,10 @@ static int fscache_stats_show(struct seq_file *m, void *v)
 		   atomic_read(&fscache_n_retrievals_nobufs),
 		   atomic_read(&fscache_n_retrievals_intr),
 		   atomic_read(&fscache_n_retrievals_nomem));
-	seq_printf(m, "Retrvls: ops=%u owt=%u\n",
+	seq_printf(m, "Retrvls: ops=%u owt=%u abt=%u\n",
 		   atomic_read(&fscache_n_retrieval_ops),
-		   atomic_read(&fscache_n_retrieval_op_waits));
+		   atomic_read(&fscache_n_retrieval_op_waits),
+		   atomic_read(&fscache_n_retrievals_object_dead));
 
 	seq_printf(m, "Stores : n=%u ok=%u agn=%u nbf=%u oom=%u\n",
 		   atomic_read(&fscache_n_stores),
@@ -180,18 +217,49 @@ static int fscache_stats_show(struct seq_file *m, void *v)
 		   atomic_read(&fscache_n_stores_again),
 		   atomic_read(&fscache_n_stores_nobufs),
 		   atomic_read(&fscache_n_stores_oom));
-	seq_printf(m, "Stores : ops=%u run=%u\n",
+	seq_printf(m, "Stores : ops=%u run=%u pgs=%u rxd=%u olm=%u\n",
 		   atomic_read(&fscache_n_store_ops),
-		   atomic_read(&fscache_n_store_calls));
+		   atomic_read(&fscache_n_store_calls),
+		   atomic_read(&fscache_n_store_pages),
+		   atomic_read(&fscache_n_store_radix_deletes),
+		   atomic_read(&fscache_n_store_pages_over_limit));
 
-	seq_printf(m, "Ops    : pend=%u run=%u enq=%u\n",
+	seq_printf(m, "VmScan : nos=%u gon=%u bsy=%u can=%u\n",
+		   atomic_read(&fscache_n_store_vmscan_not_storing),
+		   atomic_read(&fscache_n_store_vmscan_gone),
+		   atomic_read(&fscache_n_store_vmscan_busy),
+		   atomic_read(&fscache_n_store_vmscan_cancelled));
+
+	seq_printf(m, "Ops    : pend=%u run=%u enq=%u can=%u rej=%u\n",
 		   atomic_read(&fscache_n_op_pend),
 		   atomic_read(&fscache_n_op_run),
-		   atomic_read(&fscache_n_op_enqueue));
+		   atomic_read(&fscache_n_op_enqueue),
+		   atomic_read(&fscache_n_op_cancelled),
+		   atomic_read(&fscache_n_op_rejected));
 	seq_printf(m, "Ops    : dfr=%u rel=%u gc=%u\n",
 		   atomic_read(&fscache_n_op_deferred_release),
 		   atomic_read(&fscache_n_op_release),
 		   atomic_read(&fscache_n_op_gc));
+
+	seq_printf(m, "CacheOp: alo=%d luo=%d luc=%d gro=%d\n",
+		   atomic_read(&fscache_n_cop_alloc_object),
+		   atomic_read(&fscache_n_cop_lookup_object),
+		   atomic_read(&fscache_n_cop_lookup_complete),
+		   atomic_read(&fscache_n_cop_grab_object));
+	seq_printf(m, "CacheOp: upo=%d dro=%d pto=%d atc=%d syn=%d\n",
+		   atomic_read(&fscache_n_cop_update_object),
+		   atomic_read(&fscache_n_cop_drop_object),
+		   atomic_read(&fscache_n_cop_put_object),
+		   atomic_read(&fscache_n_cop_attr_changed),
+		   atomic_read(&fscache_n_cop_sync_cache));
+	seq_printf(m, "CacheOp: rap=%d ras=%d alp=%d als=%d wrp=%d ucp=%d dsp=%d\n",
+		   atomic_read(&fscache_n_cop_read_or_alloc_page),
+		   atomic_read(&fscache_n_cop_read_or_alloc_pages),
+		   atomic_read(&fscache_n_cop_allocate_page),
+		   atomic_read(&fscache_n_cop_allocate_pages),
+		   atomic_read(&fscache_n_cop_write_page),
+		   atomic_read(&fscache_n_cop_uncache_page),
+		   atomic_read(&fscache_n_cop_dissociate_pages));
 	return 0;
 }
 
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 8ada78aade5..4787ae6c5c1 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -385,6 +385,9 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, int mode,
 	if (fc->no_create)
 		return -ENOSYS;
 
+	if (flags & O_DIRECT)
+		return -EINVAL;
+
 	forget_req = fuse_get_req(fc);
 	if (IS_ERR(forget_req))
 		return PTR_ERR(forget_req);
diff --git a/fs/gfs2/Kconfig b/fs/gfs2/Kconfig
index 5971359d209..4dcddf83326 100644
--- a/fs/gfs2/Kconfig
+++ b/fs/gfs2/Kconfig
@@ -8,6 +8,8 @@ config GFS2_FS
 	select FS_POSIX_ACL
 	select CRC32
 	select SLOW_WORK
+	select QUOTA
+	select QUOTACTL
 	help
 	  A cluster filesystem.
 
diff --git a/fs/gfs2/acl.c b/fs/gfs2/acl.c
index 3fc4e3ac7d8..3eb1ea84617 100644
--- a/fs/gfs2/acl.c
+++ b/fs/gfs2/acl.c
@@ -12,6 +12,7 @@
 #include <linux/spinlock.h>
 #include <linux/completion.h>
 #include <linux/buffer_head.h>
+#include <linux/xattr.h>
 #include <linux/posix_acl.h>
 #include <linux/posix_acl_xattr.h>
 #include <linux/gfs2_ondisk.h>
@@ -26,108 +27,44 @@
 #include "trans.h"
 #include "util.h"
 
-#define ACL_ACCESS 1
-#define ACL_DEFAULT 0
-
-int gfs2_acl_validate_set(struct gfs2_inode *ip, int access,
-			  struct gfs2_ea_request *er, int *remove, mode_t *mode)
+static const char *gfs2_acl_name(int type)
 {
-	struct posix_acl *acl;
-	int error;
-
-	error = gfs2_acl_validate_remove(ip, access);
-	if (error)
-		return error;
-
-	if (!er->er_data)
-		return -EINVAL;
-
-	acl = posix_acl_from_xattr(er->er_data, er->er_data_len);
-	if (IS_ERR(acl))
-		return PTR_ERR(acl);
-	if (!acl) {
-		*remove = 1;
-		return 0;
-	}
-
-	error = posix_acl_valid(acl);
-	if (error)
-		goto out;
-
-	if (access) {
-		error = posix_acl_equiv_mode(acl, mode);
-		if (!error)
-			*remove = 1;
-		else if (error > 0)
-			error = 0;
+	switch (type) {
+	case ACL_TYPE_ACCESS:
+		return GFS2_POSIX_ACL_ACCESS;
+	case ACL_TYPE_DEFAULT:
+		return GFS2_POSIX_ACL_DEFAULT;
 	}
-
-out:
-	posix_acl_release(acl);
-	return error;
-}
-
-int gfs2_acl_validate_remove(struct gfs2_inode *ip, int access)
-{
-	if (!GFS2_SB(&ip->i_inode)->sd_args.ar_posix_acl)
-		return -EOPNOTSUPP;
-	if (!is_owner_or_cap(&ip->i_inode))
-		return -EPERM;
-	if (S_ISLNK(ip->i_inode.i_mode))
-		return -EOPNOTSUPP;
-	if (!access && !S_ISDIR(ip->i_inode.i_mode))
-		return -EACCES;
-
-	return 0;
+	return NULL;
 }
 
-static int acl_get(struct gfs2_inode *ip, const char *name,
-		   struct posix_acl **acl, struct gfs2_ea_location *el,
-		   char **datap, unsigned int *lenp)
+static struct posix_acl *gfs2_acl_get(struct gfs2_inode *ip, int type)
 {
+	struct posix_acl *acl;
+	const char *name;
 	char *data;
-	unsigned int len;
-	int error;
-
-	el->el_bh = NULL;
+	int len;
 
 	if (!ip->i_eattr)
-		return 0;
-
-	error = gfs2_ea_find(ip, GFS2_EATYPE_SYS, name, el);
-	if (error)
-		return error;
-	if (!el->el_ea)
-		return 0;
-	if (!GFS2_EA_DATA_LEN(el->el_ea))
-		goto out;
+		return NULL;
 
-	len = GFS2_EA_DATA_LEN(el->el_ea);
-	data = kmalloc(len, GFP_NOFS);
-	error = -ENOMEM;
-	if (!data)
-		goto out;
+	acl = get_cached_acl(&ip->i_inode, type);
+	if (acl != ACL_NOT_CACHED)
+		return acl;
 
-	error = gfs2_ea_get_copy(ip, el, data, len);
-	if (error < 0)
-		goto out_kfree;
-	error = 0;
+	name = gfs2_acl_name(type);
+	if (name == NULL)
+		return ERR_PTR(-EINVAL);
 
-	if (acl) {
-		*acl = posix_acl_from_xattr(data, len);
-		if (IS_ERR(*acl))
-			error = PTR_ERR(*acl);
-	}
+	len = gfs2_xattr_acl_get(ip, name, &data);
+	if (len < 0)
+		return ERR_PTR(len);
+	if (len == 0)
+		return NULL;
 
-out_kfree:
-	if (error || !datap) {
-		kfree(data);
-	} else {
-		*datap = data;
-		*lenp = len;
-	}
-out:
-	return error;
+	acl = posix_acl_from_xattr(data, len);
+	kfree(data);
+	return acl;
 }
 
 /**
@@ -140,14 +77,12 @@ out:
 
 int gfs2_check_acl(struct inode *inode, int mask)
 {
-	struct gfs2_ea_location el;
-	struct posix_acl *acl = NULL;
+	struct posix_acl *acl;
 	int error;
 
-	error = acl_get(GFS2_I(inode), GFS2_POSIX_ACL_ACCESS, &acl, &el, NULL, NULL);
-	brelse(el.el_bh);
-	if (error)
-		return error;
+	acl = gfs2_acl_get(GFS2_I(inode), ACL_TYPE_ACCESS);
+	if (IS_ERR(acl))
+		return PTR_ERR(acl);
 
 	if (acl) {
 		error = posix_acl_permission(inode, acl, mask);
@@ -158,57 +93,75 @@ int gfs2_check_acl(struct inode *inode, int mask)
 	return -EAGAIN;
 }
 
-static int munge_mode(struct gfs2_inode *ip, mode_t mode)
+static int gfs2_set_mode(struct inode *inode, mode_t mode)
 {
-	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
-	struct buffer_head *dibh;
-	int error;
+	int error = 0;
 
-	error = gfs2_trans_begin(sdp, RES_DINODE, 0);
-	if (error)
-		return error;
+	if (mode != inode->i_mode) {
+		struct iattr iattr;
 
-	error = gfs2_meta_inode_buffer(ip, &dibh);
-	if (!error) {
-		gfs2_assert_withdraw(sdp,
-				(ip->i_inode.i_mode & S_IFMT) == (mode & S_IFMT));
-		ip->i_inode.i_mode = mode;
-		gfs2_trans_add_bh(ip->i_gl, dibh, 1);
-		gfs2_dinode_out(ip, dibh->b_data);
-		brelse(dibh);
+		iattr.ia_valid = ATTR_MODE;
+		iattr.ia_mode = mode;
+
+		error = gfs2_setattr_simple(GFS2_I(inode), &iattr);
 	}
 
-	gfs2_trans_end(sdp);
+	return error;
+}
+
+static int gfs2_acl_set(struct inode *inode, int type, struct posix_acl *acl)
+{
+	int error;
+	int len;
+	char *data;
+	const char *name = gfs2_acl_name(type);
 
-	return 0;
+	BUG_ON(name == NULL);
+	len = posix_acl_to_xattr(acl, NULL, 0);
+	if (len == 0)
+		return 0;
+	data = kmalloc(len, GFP_NOFS);
+	if (data == NULL)
+		return -ENOMEM;
+	error = posix_acl_to_xattr(acl, data, len);
+	if (error < 0)
+		goto out;
+	error = gfs2_xattr_set(inode, GFS2_EATYPE_SYS, name, data, len, 0);
+	if (!error)
+		set_cached_acl(inode, type, acl);
+out:
+	kfree(data);
+	return error;
 }
 
-int gfs2_acl_create(struct gfs2_inode *dip, struct gfs2_inode *ip)
+int gfs2_acl_create(struct gfs2_inode *dip, struct inode *inode)
 {
-	struct gfs2_ea_location el;
 	struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
-	struct posix_acl *acl = NULL, *clone;
-	mode_t mode = ip->i_inode.i_mode;
-	char *data = NULL;
-	unsigned int len;
-	int error;
+	struct posix_acl *acl, *clone;
+	mode_t mode = inode->i_mode;
+	int error = 0;
 
 	if (!sdp->sd_args.ar_posix_acl)
 		return 0;
-	if (S_ISLNK(ip->i_inode.i_mode))
+	if (S_ISLNK(inode->i_mode))
 		return 0;
 
-	error = acl_get(dip, GFS2_POSIX_ACL_DEFAULT, &acl, &el, &data, &len);
-	brelse(el.el_bh);
-	if (error)
-		return error;
+	acl = gfs2_acl_get(dip, ACL_TYPE_DEFAULT);
+	if (IS_ERR(acl))
+		return PTR_ERR(acl);
 	if (!acl) {
 		mode &= ~current_umask();
-		if (mode != ip->i_inode.i_mode)
-			error = munge_mode(ip, mode);
+		if (mode != inode->i_mode)
+			error = gfs2_set_mode(inode, mode);
 		return error;
 	}
 
+	if (S_ISDIR(inode->i_mode)) {
+		error = gfs2_acl_set(inode, ACL_TYPE_DEFAULT, acl);
+		if (error)
+			goto out;
+	}
+
 	clone = posix_acl_clone(acl, GFP_NOFS);
 	error = -ENOMEM;
 	if (!clone)
@@ -216,43 +169,32 @@ int gfs2_acl_create(struct gfs2_inode *dip, struct gfs2_inode *ip)
 	posix_acl_release(acl);
 	acl = clone;
 
-	if (S_ISDIR(ip->i_inode.i_mode)) {
-		error = gfs2_xattr_set(&ip->i_inode, GFS2_EATYPE_SYS,
-				       GFS2_POSIX_ACL_DEFAULT, data, len, 0);
-		if (error)
-			goto out;
-	}
-
 	error = posix_acl_create_masq(acl, &mode);
 	if (error < 0)
 		goto out;
 	if (error == 0)
 		goto munge;
 
-	posix_acl_to_xattr(acl, data, len);
-	error = gfs2_xattr_set(&ip->i_inode, GFS2_EATYPE_SYS,
-			       GFS2_POSIX_ACL_ACCESS, data, len, 0);
+	error = gfs2_acl_set(inode, ACL_TYPE_ACCESS, acl);
 	if (error)
 		goto out;
 munge:
-	error = munge_mode(ip, mode);
+	error = gfs2_set_mode(inode, mode);
 out:
 	posix_acl_release(acl);
-	kfree(data);
 	return error;
 }
 
 int gfs2_acl_chmod(struct gfs2_inode *ip, struct iattr *attr)
 {
-	struct posix_acl *acl = NULL, *clone;
-	struct gfs2_ea_location el;
+	struct posix_acl *acl, *clone;
 	char *data;
 	unsigned int len;
 	int error;
 
-	error = acl_get(ip, GFS2_POSIX_ACL_ACCESS, &acl, &el, &data, &len);
-	if (error)
-		goto out_brelse;
+	acl = gfs2_acl_get(ip, ACL_TYPE_ACCESS);
+	if (IS_ERR(acl))
+		return PTR_ERR(acl);
 	if (!acl)
 		return gfs2_setattr_simple(ip, attr);
 
@@ -265,15 +207,134 @@ int gfs2_acl_chmod(struct gfs2_inode *ip, struct iattr *attr)
 
 	error = posix_acl_chmod_masq(acl, attr->ia_mode);
 	if (!error) {
+		len = posix_acl_to_xattr(acl, NULL, 0);
+		data = kmalloc(len, GFP_NOFS);
+		error = -ENOMEM;
+		if (data == NULL)
+			goto out;
 		posix_acl_to_xattr(acl, data, len);
-		error = gfs2_ea_acl_chmod(ip, &el, attr, data);
+		error = gfs2_xattr_acl_chmod(ip, attr, data);
+		kfree(data);
+		set_cached_acl(&ip->i_inode, ACL_TYPE_ACCESS, acl);
 	}
 
 out:
 	posix_acl_release(acl);
-	kfree(data);
-out_brelse:
-	brelse(el.el_bh);
 	return error;
 }
 
+static int gfs2_acl_type(const char *name)
+{
+	if (strcmp(name, GFS2_POSIX_ACL_ACCESS) == 0)
+		return ACL_TYPE_ACCESS;
+	if (strcmp(name, GFS2_POSIX_ACL_DEFAULT) == 0)
+		return ACL_TYPE_DEFAULT;
+	return -EINVAL;
+}
+
+static int gfs2_xattr_system_get(struct inode *inode, const char *name,
+				 void *buffer, size_t size)
+{
+	struct posix_acl *acl;
+	int type;
+	int error;
+
+	type = gfs2_acl_type(name);
+	if (type < 0)
+		return type;
+
+	acl = gfs2_acl_get(GFS2_I(inode), type);
+	if (IS_ERR(acl))
+		return PTR_ERR(acl);
+	if (acl == NULL)
+		return -ENODATA;
+
+	error = posix_acl_to_xattr(acl, buffer, size);
+	posix_acl_release(acl);
+
+	return error;
+}
+
+static int gfs2_xattr_system_set(struct inode *inode, const char *name,
+				 const void *value, size_t size, int flags)
+{
+	struct gfs2_sbd *sdp = GFS2_SB(inode);
+	struct posix_acl *acl = NULL;
+	int error = 0, type;
+
+	if (!sdp->sd_args.ar_posix_acl)
+		return -EOPNOTSUPP;
+
+	type = gfs2_acl_type(name);
+	if (type < 0)
+		return type;
+	if (flags & XATTR_CREATE)
+		return -EINVAL;
+	if (type == ACL_TYPE_DEFAULT && !S_ISDIR(inode->i_mode))
+		return value ? -EACCES : 0;
+	if ((current_fsuid() != inode->i_uid) && !capable(CAP_FOWNER))
+		return -EPERM;
+	if (S_ISLNK(inode->i_mode))
+		return -EOPNOTSUPP;
+
+	if (!value)
+		goto set_acl;
+
+	acl = posix_acl_from_xattr(value, size);
+	if (!acl) {
+		/*
+		 * acl_set_file(3) may request that we set default ACLs with
+		 * zero length -- defend (gracefully) against that here.
+		 */
+		goto out;
+	}
+	if (IS_ERR(acl)) {
+		error = PTR_ERR(acl);
+		goto out;
+	}
+
+	error = posix_acl_valid(acl);
+	if (error)
+		goto out_release;
+
+	error = -EINVAL;
+	if (acl->a_count > GFS2_ACL_MAX_ENTRIES)
+		goto out_release;
+
+	if (type == ACL_TYPE_ACCESS) {
+		mode_t mode = inode->i_mode;
+		error = posix_acl_equiv_mode(acl, &mode);
+
+		if (error <= 0) {
+			posix_acl_release(acl);
+			acl = NULL;
+
+			if (error < 0)
+				return error;
+		}
+
+		error = gfs2_set_mode(inode, mode);
+		if (error)
+			goto out_release;
+	}
+
+set_acl:
+	error = gfs2_xattr_set(inode, GFS2_EATYPE_SYS, name, value, size, 0);
+	if (!error) {
+		if (acl)
+			set_cached_acl(inode, type, acl);
+		else
+			forget_cached_acl(inode, type);
+	}
+out_release:
+	posix_acl_release(acl);
+out:
+	return error;
+}
+
+struct xattr_handler gfs2_xattr_system_handler = {
+	.prefix = XATTR_SYSTEM_PREFIX,
+	.get    = gfs2_xattr_system_get,
+	.set    = gfs2_xattr_system_set,
+};
+
diff --git a/fs/gfs2/acl.h b/fs/gfs2/acl.h
index 6751930bfb6..9306a2e6620 100644
--- a/fs/gfs2/acl.h
+++ b/fs/gfs2/acl.h
@@ -13,26 +13,12 @@
 #include "incore.h"
 
 #define GFS2_POSIX_ACL_ACCESS		"posix_acl_access"
-#define GFS2_POSIX_ACL_ACCESS_LEN	16
 #define GFS2_POSIX_ACL_DEFAULT		"posix_acl_default"
-#define GFS2_POSIX_ACL_DEFAULT_LEN	17
+#define GFS2_ACL_MAX_ENTRIES		25
 
-#define GFS2_ACL_IS_ACCESS(name, len) \
-         ((len) == GFS2_POSIX_ACL_ACCESS_LEN && \
-         !memcmp(GFS2_POSIX_ACL_ACCESS, (name), (len)))
-
-#define GFS2_ACL_IS_DEFAULT(name, len) \
-         ((len) == GFS2_POSIX_ACL_DEFAULT_LEN && \
-         !memcmp(GFS2_POSIX_ACL_DEFAULT, (name), (len)))
-
-struct gfs2_ea_request;
-
-int gfs2_acl_validate_set(struct gfs2_inode *ip, int access,
-			  struct gfs2_ea_request *er,
-			  int *remove, mode_t *mode);
-int gfs2_acl_validate_remove(struct gfs2_inode *ip, int access);
-int gfs2_check_acl(struct inode *inode, int mask);
-int gfs2_acl_create(struct gfs2_inode *dip, struct gfs2_inode *ip);
-int gfs2_acl_chmod(struct gfs2_inode *ip, struct iattr *attr);
+extern int gfs2_check_acl(struct inode *inode, int mask);
+extern int gfs2_acl_create(struct gfs2_inode *dip, struct inode *inode);
+extern int gfs2_acl_chmod(struct gfs2_inode *ip, struct iattr *attr);
+extern struct xattr_handler gfs2_xattr_system_handler;
 
 #endif /* __ACL_DOT_H__ */
diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c
index 694b5d48f03..7b8da941526 100644
--- a/fs/gfs2/aops.c
+++ b/fs/gfs2/aops.c
@@ -269,7 +269,6 @@ static int gfs2_write_jdata_pagevec(struct address_space *mapping,
 	pgoff_t end_index = i_size >> PAGE_CACHE_SHIFT;
 	unsigned offset = i_size & (PAGE_CACHE_SIZE-1);
 	unsigned nrblocks = nr_pages * (PAGE_CACHE_SIZE/inode->i_sb->s_blocksize);
-	struct backing_dev_info *bdi = mapping->backing_dev_info;
 	int i;
 	int ret;
 
@@ -313,11 +312,6 @@ static int gfs2_write_jdata_pagevec(struct address_space *mapping,
 
 		if (ret || (--(wbc->nr_to_write) <= 0))
 			ret = 1;
-		if (wbc->nonblocking && bdi_write_congested(bdi)) {
-			wbc->encountered_congestion = 1;
-			ret = 1;
-		}
-
 	}
 	gfs2_trans_end(sdp);
 	return ret;
@@ -338,7 +332,6 @@ static int gfs2_write_jdata_pagevec(struct address_space *mapping,
 static int gfs2_write_cache_jdata(struct address_space *mapping,
 				  struct writeback_control *wbc)
 {
-	struct backing_dev_info *bdi = mapping->backing_dev_info;
 	int ret = 0;
 	int done = 0;
 	struct pagevec pvec;
@@ -348,11 +341,6 @@ static int gfs2_write_cache_jdata(struct address_space *mapping,
 	int scanned = 0;
 	int range_whole = 0;
 
-	if (wbc->nonblocking && bdi_write_congested(bdi)) {
-		wbc->encountered_congestion = 1;
-		return 0;
-	}
-
 	pagevec_init(&pvec, 0);
 	if (wbc->range_cyclic) {
 		index = mapping->writeback_index; /* Start from prev offset */
@@ -819,8 +807,10 @@ static int gfs2_stuffed_write_end(struct inode *inode, struct buffer_head *dibh,
 		mark_inode_dirty(inode);
 	}
 
-	if (inode == sdp->sd_rindex)
+	if (inode == sdp->sd_rindex) {
 		adjust_fs_space(inode);
+		ip->i_gh.gh_flags |= GL_NOCACHE;
+	}
 
 	brelse(dibh);
 	gfs2_trans_end(sdp);
@@ -889,8 +879,10 @@ static int gfs2_write_end(struct file *file, struct address_space *mapping,
 		mark_inode_dirty(inode);
 	}
 
-	if (inode == sdp->sd_rindex)
+	if (inode == sdp->sd_rindex) {
 		adjust_fs_space(inode);
+		ip->i_gh.gh_flags |= GL_NOCACHE;
+	}
 
 	brelse(dibh);
 	gfs2_trans_end(sdp);
diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index 297d7e5ceba..25fddc100f1 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -525,38 +525,6 @@ consist_inode:
 	return ERR_PTR(-EIO);
 }
 
-
-/**
- * dirent_first - Return the first dirent
- * @dip: the directory
- * @bh: The buffer
- * @dent: Pointer to list of dirents
- *
- * return first dirent whether bh points to leaf or stuffed dinode
- *
- * Returns: IS_LEAF, IS_DINODE, or -errno
- */
-
-static int dirent_first(struct gfs2_inode *dip, struct buffer_head *bh,
-			struct gfs2_dirent **dent)
-{
-	struct gfs2_meta_header *h = (struct gfs2_meta_header *)bh->b_data;
-
-	if (be32_to_cpu(h->mh_type) == GFS2_METATYPE_LF) {
-		if (gfs2_meta_check(GFS2_SB(&dip->i_inode), bh))
-			return -EIO;
-		*dent = (struct gfs2_dirent *)(bh->b_data +
-					       sizeof(struct gfs2_leaf));
-		return IS_LEAF;
-	} else {
-		if (gfs2_metatype_check(GFS2_SB(&dip->i_inode), bh, GFS2_METATYPE_DI))
-			return -EIO;
-		*dent = (struct gfs2_dirent *)(bh->b_data +
-					       sizeof(struct gfs2_dinode));
-		return IS_DINODE;
-	}
-}
-
 static int dirent_check_reclen(struct gfs2_inode *dip,
 			       const struct gfs2_dirent *d, const void *end_p)
 {
@@ -1006,7 +974,7 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
 	divider = (start + half_len) << (32 - dip->i_depth);
 
 	/*  Copy the entries  */
-	dirent_first(dip, obh, &dent);
+	dent = (struct gfs2_dirent *)(obh->b_data + sizeof(struct gfs2_leaf));
 
 	do {
 		next = dent;
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index 8b674b1f3a5..f455a03a09e 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -241,15 +241,14 @@ int gfs2_glock_put(struct gfs2_glock *gl)
 	int rv = 0;
 
 	write_lock(gl_lock_addr(gl->gl_hash));
-	if (atomic_dec_and_test(&gl->gl_ref)) {
+	if (atomic_dec_and_lock(&gl->gl_ref, &lru_lock)) {
 		hlist_del(&gl->gl_list);
-		write_unlock(gl_lock_addr(gl->gl_hash));
-		spin_lock(&lru_lock);
 		if (!list_empty(&gl->gl_lru)) {
 			list_del_init(&gl->gl_lru);
 			atomic_dec(&lru_count);
 		}
 		spin_unlock(&lru_lock);
+		write_unlock(gl_lock_addr(gl->gl_hash));
 		GLOCK_BUG_ON(gl, !list_empty(&gl->gl_holders));
 		glock_free(gl);
 		rv = 1;
@@ -513,7 +512,6 @@ retry:
 			GLOCK_BUG_ON(gl, 1);
 		}
 		spin_unlock(&gl->gl_spin);
-		gfs2_glock_put(gl);
 		return;
 	}
 
@@ -524,8 +522,6 @@ retry:
 		if (glops->go_xmote_bh) {
 			spin_unlock(&gl->gl_spin);
 			rv = glops->go_xmote_bh(gl, gh);
-			if (rv == -EAGAIN)
-				return;
 			spin_lock(&gl->gl_spin);
 			if (rv) {
 				do_error(gl, rv);
@@ -540,7 +536,6 @@ out:
 	clear_bit(GLF_LOCK, &gl->gl_flags);
 out_locked:
 	spin_unlock(&gl->gl_spin);
-	gfs2_glock_put(gl);
 }
 
 static unsigned int gfs2_lm_lock(struct gfs2_sbd *sdp, void *lock,
@@ -600,7 +595,6 @@ __acquires(&gl->gl_spin)
 
 	if (!(ret & LM_OUT_ASYNC)) {
 		finish_xmote(gl, ret);
-		gfs2_glock_hold(gl);
 		if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
 			gfs2_glock_put(gl);
 	} else {
@@ -672,12 +666,17 @@ out:
 	return;
 
 out_sched:
+	clear_bit(GLF_LOCK, &gl->gl_flags);
+	smp_mb__after_clear_bit();
 	gfs2_glock_hold(gl);
 	if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
 		gfs2_glock_put_nolock(gl);
+	return;
+
 out_unlock:
 	clear_bit(GLF_LOCK, &gl->gl_flags);
-	goto out;
+	smp_mb__after_clear_bit();
+	return;
 }
 
 static void delete_work_func(struct work_struct *work)
@@ -707,9 +706,12 @@ static void glock_work_func(struct work_struct *work)
 {
 	unsigned long delay = 0;
 	struct gfs2_glock *gl = container_of(work, struct gfs2_glock, gl_work.work);
+	int drop_ref = 0;
 
-	if (test_and_clear_bit(GLF_REPLY_PENDING, &gl->gl_flags))
+	if (test_and_clear_bit(GLF_REPLY_PENDING, &gl->gl_flags)) {
 		finish_xmote(gl, gl->gl_reply);
+		drop_ref = 1;
+	}
 	down_read(&gfs2_umount_flush_sem);
 	spin_lock(&gl->gl_spin);
 	if (test_and_clear_bit(GLF_PENDING_DEMOTE, &gl->gl_flags) &&
@@ -727,6 +729,8 @@ static void glock_work_func(struct work_struct *work)
 	if (!delay ||
 	    queue_delayed_work(glock_workqueue, &gl->gl_work, delay) == 0)
 		gfs2_glock_put(gl);
+	if (drop_ref)
+		gfs2_glock_put(gl);
 }
 
 /**
@@ -1361,10 +1365,6 @@ static int gfs2_shrink_glock_memory(int nr, gfp_t gfp_mask)
 		list_del_init(&gl->gl_lru);
 		atomic_dec(&lru_count);
 
-		/* Check if glock is about to be freed */
-		if (atomic_read(&gl->gl_ref) == 0)
-			continue;
-
 		/* Test for being demotable */
 		if (!test_and_set_bit(GLF_LOCK, &gl->gl_flags)) {
 			gfs2_glock_hold(gl);
@@ -1375,10 +1375,11 @@ static int gfs2_shrink_glock_memory(int nr, gfp_t gfp_mask)
 				handle_callback(gl, LM_ST_UNLOCKED, 0);
 				nr--;
 			}
+			clear_bit(GLF_LOCK, &gl->gl_flags);
+			smp_mb__after_clear_bit();
 			if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
 				gfs2_glock_put_nolock(gl);
 			spin_unlock(&gl->gl_spin);
-			clear_bit(GLF_LOCK, &gl->gl_flags);
 			spin_lock(&lru_lock);
 			continue;
 		}
diff --git a/fs/gfs2/glock.h b/fs/gfs2/glock.h
index c609894ec0d..13f0bd22813 100644
--- a/fs/gfs2/glock.h
+++ b/fs/gfs2/glock.h
@@ -180,15 +180,6 @@ static inline int gfs2_glock_is_held_shrd(struct gfs2_glock *gl)
 	return gl->gl_state == LM_ST_SHARED;
 }
 
-static inline int gfs2_glock_is_blocking(struct gfs2_glock *gl)
-{
-	int ret;
-	spin_lock(&gl->gl_spin);
-	ret = test_bit(GLF_DEMOTE, &gl->gl_flags);
-	spin_unlock(&gl->gl_spin);
-	return ret;
-}
-
 int gfs2_glock_get(struct gfs2_sbd *sdp,
 		   u64 number, const struct gfs2_glock_operations *glops,
 		   int create, struct gfs2_glock **glp);
diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c
index 6985eef06c3..78554acc060 100644
--- a/fs/gfs2/glops.c
+++ b/fs/gfs2/glops.c
@@ -13,6 +13,7 @@
 #include <linux/buffer_head.h>
 #include <linux/gfs2_ondisk.h>
 #include <linux/bio.h>
+#include <linux/posix_acl.h>
 
 #include "gfs2.h"
 #include "incore.h"
@@ -184,8 +185,10 @@ static void inode_go_inval(struct gfs2_glock *gl, int flags)
 	if (flags & DIO_METADATA) {
 		struct address_space *mapping = gl->gl_aspace->i_mapping;
 		truncate_inode_pages(mapping, 0);
-		if (ip)
+		if (ip) {
 			set_bit(GIF_INVALID, &ip->i_flags);
+			forget_all_cached_acls(&ip->i_inode);
+		}
 	}
 
 	if (ip == GFS2_I(gl->gl_sbd->sd_rindex))
diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index 6edb423f90b..4792200978c 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -429,7 +429,11 @@ struct gfs2_args {
 	unsigned int ar_meta:1;			/* mount metafs */
 	unsigned int ar_discard:1;		/* discard requests */
 	unsigned int ar_errors:2;               /* errors=withdraw | panic */
+	unsigned int ar_nobarrier:1;            /* do not send barriers */
 	int ar_commit;				/* Commit interval */
+	int ar_statfs_quantum;			/* The fast statfs interval */
+	int ar_quota_quantum;			/* The quota interval */
+	int ar_statfs_percent;			/* The % change to force sync */
 };
 
 struct gfs2_tune {
@@ -558,6 +562,7 @@ struct gfs2_sbd {
 	spinlock_t sd_statfs_spin;
 	struct gfs2_statfs_change_host sd_statfs_master;
 	struct gfs2_statfs_change_host sd_statfs_local;
+	int sd_statfs_force_sync;
 
 	/* Resource group stuff */
 
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index fb15d3b1f40..26ba2a4c4a2 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -871,7 +871,7 @@ struct inode *gfs2_createi(struct gfs2_holder *ghs, const struct qstr *name,
 	if (error)
 		goto fail_gunlock2;
 
-	error = gfs2_acl_create(dip, GFS2_I(inode));
+	error = gfs2_acl_create(dip, inode);
 	if (error)
 		goto fail_gunlock2;
 
@@ -947,9 +947,7 @@ void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf)
 
 	str->di_header.mh_magic = cpu_to_be32(GFS2_MAGIC);
 	str->di_header.mh_type = cpu_to_be32(GFS2_METATYPE_DI);
-	str->di_header.__pad0 = 0;
 	str->di_header.mh_format = cpu_to_be32(GFS2_FORMAT_DI);
-	str->di_header.__pad1 = 0;
 	str->di_num.no_addr = cpu_to_be64(ip->i_no_addr);
 	str->di_num.no_formal_ino = cpu_to_be64(ip->i_no_formal_ino);
 	str->di_mode = cpu_to_be32(ip->i_inode.i_mode);
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index 13c6237c5f6..4511b08fc45 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -596,7 +596,9 @@ static void log_write_header(struct gfs2_sbd *sdp, u32 flags, int pull)
 	memset(lh, 0, sizeof(struct gfs2_log_header));
 	lh->lh_header.mh_magic = cpu_to_be32(GFS2_MAGIC);
 	lh->lh_header.mh_type = cpu_to_be32(GFS2_METATYPE_LH);
+	lh->lh_header.__pad0 = cpu_to_be64(0);
 	lh->lh_header.mh_format = cpu_to_be32(GFS2_FORMAT_LH);
+	lh->lh_header.mh_jid = cpu_to_be32(sdp->sd_jdesc->jd_jid);
 	lh->lh_sequence = cpu_to_be64(sdp->sd_log_sequence++);
 	lh->lh_flags = cpu_to_be32(flags);
 	lh->lh_tail = cpu_to_be32(tail);
diff --git a/fs/gfs2/lops.c b/fs/gfs2/lops.c
index 9969ff062c5..de97632ba32 100644
--- a/fs/gfs2/lops.c
+++ b/fs/gfs2/lops.c
@@ -132,6 +132,7 @@ static struct buffer_head *gfs2_get_log_desc(struct gfs2_sbd *sdp, u32 ld_type)
 static void buf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le)
 {
 	struct gfs2_bufdata *bd = container_of(le, struct gfs2_bufdata, bd_le);
+	struct gfs2_meta_header *mh;
 	struct gfs2_trans *tr;
 
 	lock_buffer(bd->bd_bh);
@@ -148,6 +149,9 @@ static void buf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le)
 	set_bit(GLF_DIRTY, &bd->bd_gl->gl_flags);
 	gfs2_meta_check(sdp, bd->bd_bh);
 	gfs2_pin(sdp, bd->bd_bh);
+	mh = (struct gfs2_meta_header *)bd->bd_bh->b_data;
+	mh->__pad0 = cpu_to_be64(0);
+	mh->mh_jid = cpu_to_be32(sdp->sd_jdesc->jd_jid);
 	sdp->sd_log_num_buf++;
 	list_add(&le->le_list, &sdp->sd_log_le_buf);
 	tr->tr_num_buf_new++;
diff --git a/fs/gfs2/main.c b/fs/gfs2/main.c
index eacd78a5d08..5b31f7741a8 100644
--- a/fs/gfs2/main.c
+++ b/fs/gfs2/main.c
@@ -114,7 +114,7 @@ static int __init init_gfs2_fs(void)
 	if (error)
 		goto fail_unregister;
 
-	error = slow_work_register_user();
+	error = slow_work_register_user(THIS_MODULE);
 	if (error)
 		goto fail_slow;
 
@@ -163,7 +163,7 @@ static void __exit exit_gfs2_fs(void)
 	gfs2_unregister_debugfs();
 	unregister_filesystem(&gfs2_fs_type);
 	unregister_filesystem(&gfs2meta_fs_type);
-	slow_work_unregister_user();
+	slow_work_unregister_user(THIS_MODULE);
 
 	kmem_cache_destroy(gfs2_quotad_cachep);
 	kmem_cache_destroy(gfs2_rgrpd_cachep);
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index 52fb6c04898..edfee24f363 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -18,6 +18,7 @@
 #include <linux/mount.h>
 #include <linux/gfs2_ondisk.h>
 #include <linux/slow-work.h>
+#include <linux/quotaops.h>
 
 #include "gfs2.h"
 #include "incore.h"
@@ -62,13 +63,10 @@ static void gfs2_tune_init(struct gfs2_tune *gt)
 	gt->gt_quota_warn_period = 10;
 	gt->gt_quota_scale_num = 1;
 	gt->gt_quota_scale_den = 1;
-	gt->gt_quota_quantum = 60;
 	gt->gt_new_files_jdata = 0;
 	gt->gt_max_readahead = 1 << 18;
 	gt->gt_stall_secs = 600;
 	gt->gt_complain_secs = 10;
-	gt->gt_statfs_quantum = 30;
-	gt->gt_statfs_slow = 0;
 }
 
 static struct gfs2_sbd *init_sbd(struct super_block *sb)
@@ -1114,7 +1112,7 @@ void gfs2_online_uevent(struct gfs2_sbd *sdp)
  * Returns: errno
  */
 
-static int fill_super(struct super_block *sb, void *data, int silent)
+static int fill_super(struct super_block *sb, struct gfs2_args *args, int silent)
 {
 	struct gfs2_sbd *sdp;
 	struct gfs2_holder mount_gh;
@@ -1125,17 +1123,7 @@ static int fill_super(struct super_block *sb, void *data, int silent)
 		printk(KERN_WARNING "GFS2: can't alloc struct gfs2_sbd\n");
 		return -ENOMEM;
 	}
-
-	sdp->sd_args.ar_quota = GFS2_QUOTA_DEFAULT;
-	sdp->sd_args.ar_data = GFS2_DATA_DEFAULT;
-	sdp->sd_args.ar_commit = 60;
-	sdp->sd_args.ar_errors = GFS2_ERRORS_DEFAULT;
-
-	error = gfs2_mount_args(sdp, &sdp->sd_args, data);
-	if (error) {
-		printk(KERN_WARNING "GFS2: can't parse mount arguments\n");
-		goto fail;
-	}
+	sdp->sd_args = *args;
 
 	if (sdp->sd_args.ar_spectator) {
                 sb->s_flags |= MS_RDONLY;
@@ -1143,11 +1131,15 @@ static int fill_super(struct super_block *sb, void *data, int silent)
 	}
 	if (sdp->sd_args.ar_posix_acl)
 		sb->s_flags |= MS_POSIXACL;
+	if (sdp->sd_args.ar_nobarrier)
+		set_bit(SDF_NOBARRIERS, &sdp->sd_flags);
 
 	sb->s_magic = GFS2_MAGIC;
 	sb->s_op = &gfs2_super_ops;
 	sb->s_export_op = &gfs2_export_ops;
 	sb->s_xattr = gfs2_xattr_handlers;
+	sb->s_qcop = &gfs2_quotactl_ops;
+	sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE;
 	sb->s_time_gran = 1;
 	sb->s_maxbytes = MAX_LFS_FILESIZE;
 
@@ -1160,6 +1152,15 @@ static int fill_super(struct super_block *sb, void *data, int silent)
 	sdp->sd_fsb2bb = 1 << sdp->sd_fsb2bb_shift;
 
 	sdp->sd_tune.gt_log_flush_secs = sdp->sd_args.ar_commit;
+	sdp->sd_tune.gt_quota_quantum = sdp->sd_args.ar_quota_quantum;
+	if (sdp->sd_args.ar_statfs_quantum) {
+		sdp->sd_tune.gt_statfs_slow = 0;
+		sdp->sd_tune.gt_statfs_quantum = sdp->sd_args.ar_statfs_quantum;
+	}
+	else {
+		sdp->sd_tune.gt_statfs_slow = 1;
+		sdp->sd_tune.gt_statfs_quantum = 30;
+	}
 
 	error = init_names(sdp, silent);
 	if (error)
@@ -1243,18 +1244,127 @@ fail:
 	return error;
 }
 
-static int gfs2_get_sb(struct file_system_type *fs_type, int flags,
-		       const char *dev_name, void *data, struct vfsmount *mnt)
+static int set_gfs2_super(struct super_block *s, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, fill_super, mnt);
+	s->s_bdev = data;
+	s->s_dev = s->s_bdev->bd_dev;
+
+	/*
+	 * We set the bdi here to the queue backing, file systems can
+	 * overwrite this in ->fill_super()
+	 */
+	s->s_bdi = &bdev_get_queue(s->s_bdev)->backing_dev_info;
+	return 0;
 }
 
-static int test_meta_super(struct super_block *s, void *ptr)
+static int test_gfs2_super(struct super_block *s, void *ptr)
 {
 	struct block_device *bdev = ptr;
 	return (bdev == s->s_bdev);
 }
 
+/**
+ * gfs2_get_sb - Get the GFS2 superblock
+ * @fs_type: The GFS2 filesystem type
+ * @flags: Mount flags
+ * @dev_name: The name of the device
+ * @data: The mount arguments
+ * @mnt: The vfsmnt for this mount
+ *
+ * Q. Why not use get_sb_bdev() ?
+ * A. We need to select one of two root directories to mount, independent
+ *    of whether this is the initial, or subsequent, mount of this sb
+ *
+ * Returns: 0 or -ve on error
+ */
+
+static int gfs2_get_sb(struct file_system_type *fs_type, int flags,
+		       const char *dev_name, void *data, struct vfsmount *mnt)
+{
+	struct block_device *bdev;
+	struct super_block *s;
+	fmode_t mode = FMODE_READ;
+	int error;
+	struct gfs2_args args;
+	struct gfs2_sbd *sdp;
+
+	if (!(flags & MS_RDONLY))
+		mode |= FMODE_WRITE;
+
+	bdev = open_bdev_exclusive(dev_name, mode, fs_type);
+	if (IS_ERR(bdev))
+		return PTR_ERR(bdev);
+
+	/*
+	 * once the super is inserted into the list by sget, s_umount
+	 * will protect the lockfs code from trying to start a snapshot
+	 * while we are mounting
+	 */
+	mutex_lock(&bdev->bd_fsfreeze_mutex);
+	if (bdev->bd_fsfreeze_count > 0) {
+		mutex_unlock(&bdev->bd_fsfreeze_mutex);
+		error = -EBUSY;
+		goto error_bdev;
+	}
+	s = sget(fs_type, test_gfs2_super, set_gfs2_super, bdev);
+	mutex_unlock(&bdev->bd_fsfreeze_mutex);
+	error = PTR_ERR(s);
+	if (IS_ERR(s))
+		goto error_bdev;
+
+	memset(&args, 0, sizeof(args));
+	args.ar_quota = GFS2_QUOTA_DEFAULT;
+	args.ar_data = GFS2_DATA_DEFAULT;
+	args.ar_commit = 60;
+	args.ar_statfs_quantum = 30;
+	args.ar_quota_quantum = 60;
+	args.ar_errors = GFS2_ERRORS_DEFAULT;
+
+	error = gfs2_mount_args(&args, data);
+	if (error) {
+		printk(KERN_WARNING "GFS2: can't parse mount arguments\n");
+		if (s->s_root)
+			goto error_super;
+		deactivate_locked_super(s);
+		return error;
+	}
+
+	if (s->s_root) {
+		error = -EBUSY;
+		if ((flags ^ s->s_flags) & MS_RDONLY)
+			goto error_super;
+		close_bdev_exclusive(bdev, mode);
+	} else {
+		char b[BDEVNAME_SIZE];
+
+		s->s_flags = flags;
+		s->s_mode = mode;
+		strlcpy(s->s_id, bdevname(bdev, b), sizeof(s->s_id));
+		sb_set_blocksize(s, block_size(bdev));
+		error = fill_super(s, &args, flags & MS_SILENT ? 1 : 0);
+		if (error) {
+			deactivate_locked_super(s);
+			return error;
+		}
+		s->s_flags |= MS_ACTIVE;
+		bdev->bd_super = s;
+	}
+
+	sdp = s->s_fs_info;
+	mnt->mnt_sb = s;
+	if (args.ar_meta)
+		mnt->mnt_root = dget(sdp->sd_master_dir);
+	else
+		mnt->mnt_root = dget(sdp->sd_root_dir);
+	return 0;
+
+error_super:
+	deactivate_locked_super(s);
+error_bdev:
+	close_bdev_exclusive(bdev, mode);
+	return error;
+}
+
 static int set_meta_super(struct super_block *s, void *ptr)
 {
 	return -EINVAL;
@@ -1274,13 +1384,17 @@ static int gfs2_get_sb_meta(struct file_system_type *fs_type, int flags,
 		       dev_name, error);
 		return error;
 	}
-	s = sget(&gfs2_fs_type, test_meta_super, set_meta_super,
+	s = sget(&gfs2_fs_type, test_gfs2_super, set_meta_super,
 		 path.dentry->d_inode->i_sb->s_bdev);
 	path_put(&path);
 	if (IS_ERR(s)) {
 		printk(KERN_WARNING "GFS2: gfs2 mount does not exist\n");
 		return PTR_ERR(s);
 	}
+	if ((flags ^ s->s_flags) & MS_RDONLY) {
+		deactivate_locked_super(s);
+		return -EBUSY;
+	}
 	sdp = s->s_fs_info;
 	mnt->mnt_sb = s;
 	mnt->mnt_root = dget(sdp->sd_master_dir);
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 2e9b9326bfc..e3bf6eab875 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -15,7 +15,7 @@
  * fuzziness in the current usage value of IDs that are being used on different
  * nodes in the cluster simultaneously.  So, it is possible for a user on
  * multiple nodes to overrun their quota, but that overrun is controlable.
- * Since quota tags are part of transactions, there is no need to a quota check
+ * Since quota tags are part of transactions, there is no need for a quota check
  * program to be run on node crashes or anything like that.
  *
  * There are couple of knobs that let the administrator manage the quota
@@ -47,6 +47,8 @@
 #include <linux/gfs2_ondisk.h>
 #include <linux/kthread.h>
 #include <linux/freezer.h>
+#include <linux/quota.h>
+#include <linux/dqblk_xfs.h>
 
 #include "gfs2.h"
 #include "incore.h"
@@ -65,13 +67,6 @@
 #define QUOTA_USER 1
 #define QUOTA_GROUP 0
 
-struct gfs2_quota_host {
-	u64 qu_limit;
-	u64 qu_warn;
-	s64 qu_value;
-	u32 qu_ll_next;
-};
-
 struct gfs2_quota_change_host {
 	u64 qc_change;
 	u32 qc_flags; /* GFS2_QCF_... */
@@ -164,7 +159,7 @@ fail:
 	return error;
 }
 
-static int qd_get(struct gfs2_sbd *sdp, int user, u32 id, int create,
+static int qd_get(struct gfs2_sbd *sdp, int user, u32 id,
 		  struct gfs2_quota_data **qdp)
 {
 	struct gfs2_quota_data *qd = NULL, *new_qd = NULL;
@@ -202,7 +197,7 @@ static int qd_get(struct gfs2_sbd *sdp, int user, u32 id, int create,
 
 		spin_unlock(&qd_lru_lock);
 
-		if (qd || !create) {
+		if (qd) {
 			if (new_qd) {
 				gfs2_glock_put(new_qd->qd_gl);
 				kmem_cache_free(gfs2_quotad_cachep, new_qd);
@@ -461,12 +456,12 @@ static void qd_unlock(struct gfs2_quota_data *qd)
 	qd_put(qd);
 }
 
-static int qdsb_get(struct gfs2_sbd *sdp, int user, u32 id, int create,
+static int qdsb_get(struct gfs2_sbd *sdp, int user, u32 id,
 		    struct gfs2_quota_data **qdp)
 {
 	int error;
 
-	error = qd_get(sdp, user, id, create, qdp);
+	error = qd_get(sdp, user, id, qdp);
 	if (error)
 		return error;
 
@@ -508,20 +503,20 @@ int gfs2_quota_hold(struct gfs2_inode *ip, u32 uid, u32 gid)
 	if (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF)
 		return 0;
 
-	error = qdsb_get(sdp, QUOTA_USER, ip->i_inode.i_uid, CREATE, qd);
+	error = qdsb_get(sdp, QUOTA_USER, ip->i_inode.i_uid, qd);
 	if (error)
 		goto out;
 	al->al_qd_num++;
 	qd++;
 
-	error = qdsb_get(sdp, QUOTA_GROUP, ip->i_inode.i_gid, CREATE, qd);
+	error = qdsb_get(sdp, QUOTA_GROUP, ip->i_inode.i_gid, qd);
 	if (error)
 		goto out;
 	al->al_qd_num++;
 	qd++;
 
 	if (uid != NO_QUOTA_CHANGE && uid != ip->i_inode.i_uid) {
-		error = qdsb_get(sdp, QUOTA_USER, uid, CREATE, qd);
+		error = qdsb_get(sdp, QUOTA_USER, uid, qd);
 		if (error)
 			goto out;
 		al->al_qd_num++;
@@ -529,7 +524,7 @@ int gfs2_quota_hold(struct gfs2_inode *ip, u32 uid, u32 gid)
 	}
 
 	if (gid != NO_QUOTA_CHANGE && gid != ip->i_inode.i_gid) {
-		error = qdsb_get(sdp, QUOTA_GROUP, gid, CREATE, qd);
+		error = qdsb_get(sdp, QUOTA_GROUP, gid, qd);
 		if (error)
 			goto out;
 		al->al_qd_num++;
@@ -617,48 +612,36 @@ static void do_qc(struct gfs2_quota_data *qd, s64 change)
 	mutex_unlock(&sdp->sd_quota_mutex);
 }
 
-static void gfs2_quota_in(struct gfs2_quota_host *qu, const void *buf)
-{
-	const struct gfs2_quota *str = buf;
-
-	qu->qu_limit = be64_to_cpu(str->qu_limit);
-	qu->qu_warn = be64_to_cpu(str->qu_warn);
-	qu->qu_value = be64_to_cpu(str->qu_value);
-	qu->qu_ll_next = be32_to_cpu(str->qu_ll_next);
-}
-
-static void gfs2_quota_out(const struct gfs2_quota_host *qu, void *buf)
-{
-	struct gfs2_quota *str = buf;
-
-	str->qu_limit = cpu_to_be64(qu->qu_limit);
-	str->qu_warn = cpu_to_be64(qu->qu_warn);
-	str->qu_value = cpu_to_be64(qu->qu_value);
-	str->qu_ll_next = cpu_to_be32(qu->qu_ll_next);
-	memset(&str->qu_reserved, 0, sizeof(str->qu_reserved));
-}
-
 /**
- * gfs2_adjust_quota
+ * gfs2_adjust_quota - adjust record of current block usage
+ * @ip: The quota inode
+ * @loc: Offset of the entry in the quota file
+ * @change: The amount of usage change to record
+ * @qd: The quota data
+ * @fdq: The updated limits to record
  *
  * This function was mostly borrowed from gfs2_block_truncate_page which was
  * in turn mostly borrowed from ext3
+ *
+ * Returns: 0 or -ve on error
  */
+
 static int gfs2_adjust_quota(struct gfs2_inode *ip, loff_t loc,
-			     s64 change, struct gfs2_quota_data *qd)
+			     s64 change, struct gfs2_quota_data *qd,
+			     struct fs_disk_quota *fdq)
 {
 	struct inode *inode = &ip->i_inode;
 	struct address_space *mapping = inode->i_mapping;
 	unsigned long index = loc >> PAGE_CACHE_SHIFT;
 	unsigned offset = loc & (PAGE_CACHE_SIZE - 1);
 	unsigned blocksize, iblock, pos;
-	struct buffer_head *bh;
+	struct buffer_head *bh, *dibh;
 	struct page *page;
 	void *kaddr;
-	char *ptr;
-	struct gfs2_quota_host qp;
+	struct gfs2_quota *qp;
 	s64 value;
 	int err = -EIO;
+	u64 size;
 
 	if (gfs2_is_stuffed(ip))
 		gfs2_unstuff_dinode(ip, NULL);
@@ -700,18 +683,38 @@ static int gfs2_adjust_quota(struct gfs2_inode *ip, loff_t loc,
 	gfs2_trans_add_bh(ip->i_gl, bh, 0);
 
 	kaddr = kmap_atomic(page, KM_USER0);
-	ptr = kaddr + offset;
-	gfs2_quota_in(&qp, ptr);
-	qp.qu_value += change;
-	value = qp.qu_value;
-	gfs2_quota_out(&qp, ptr);
+	qp = kaddr + offset;
+	value = (s64)be64_to_cpu(qp->qu_value) + change;
+	qp->qu_value = cpu_to_be64(value);
+	qd->qd_qb.qb_value = qp->qu_value;
+	if (fdq) {
+		if (fdq->d_fieldmask & FS_DQ_BSOFT) {
+			qp->qu_warn = cpu_to_be64(fdq->d_blk_softlimit);
+			qd->qd_qb.qb_warn = qp->qu_warn;
+		}
+		if (fdq->d_fieldmask & FS_DQ_BHARD) {
+			qp->qu_limit = cpu_to_be64(fdq->d_blk_hardlimit);
+			qd->qd_qb.qb_limit = qp->qu_limit;
+		}
+	}
 	flush_dcache_page(page);
 	kunmap_atomic(kaddr, KM_USER0);
-	err = 0;
-	qd->qd_qb.qb_magic = cpu_to_be32(GFS2_MAGIC);
-	qd->qd_qb.qb_value = cpu_to_be64(value);
-	((struct gfs2_quota_lvb*)(qd->qd_gl->gl_lvb))->qb_magic = cpu_to_be32(GFS2_MAGIC);
-	((struct gfs2_quota_lvb*)(qd->qd_gl->gl_lvb))->qb_value = cpu_to_be64(value);
+
+	err = gfs2_meta_inode_buffer(ip, &dibh);
+	if (err)
+		goto unlock;
+
+	size = loc + sizeof(struct gfs2_quota);
+	if (size > inode->i_size) {
+		ip->i_disksize = size;
+		i_size_write(inode, size);
+	}
+	inode->i_mtime = inode->i_atime = CURRENT_TIME;
+	gfs2_trans_add_bh(ip->i_gl, dibh, 1);
+	gfs2_dinode_out(ip, dibh->b_data);
+	brelse(dibh);
+	mark_inode_dirty(inode);
+
 unlock:
 	unlock_page(page);
 	page_cache_release(page);
@@ -739,9 +742,9 @@ static int do_sync(unsigned int num_qd, struct gfs2_quota_data **qda)
 		return -ENOMEM;
 
 	sort(qda, num_qd, sizeof(struct gfs2_quota_data *), sort_qd, NULL);
+	mutex_lock_nested(&ip->i_inode.i_mutex, I_MUTEX_QUOTA);
 	for (qx = 0; qx < num_qd; qx++) {
-		error = gfs2_glock_nq_init(qda[qx]->qd_gl,
-					   LM_ST_EXCLUSIVE,
+		error = gfs2_glock_nq_init(qda[qx]->qd_gl, LM_ST_EXCLUSIVE,
 					   GL_NOCACHE, &ghs[qx]);
 		if (error)
 			goto out;
@@ -795,9 +798,7 @@ static int do_sync(unsigned int num_qd, struct gfs2_quota_data **qda)
 	for (x = 0; x < num_qd; x++) {
 		qd = qda[x];
 		offset = qd2offset(qd);
-		error = gfs2_adjust_quota(ip, offset, qd->qd_change_sync,
-					  (struct gfs2_quota_data *)
-					  qd);
+		error = gfs2_adjust_quota(ip, offset, qd->qd_change_sync, qd, NULL);
 		if (error)
 			goto out_end_trans;
 
@@ -817,21 +818,44 @@ out_gunlock:
 out:
 	while (qx--)
 		gfs2_glock_dq_uninit(&ghs[qx]);
+	mutex_unlock(&ip->i_inode.i_mutex);
 	kfree(ghs);
 	gfs2_log_flush(ip->i_gl->gl_sbd, ip->i_gl);
 	return error;
 }
 
+static int update_qd(struct gfs2_sbd *sdp, struct gfs2_quota_data *qd)
+{
+	struct gfs2_inode *ip = GFS2_I(sdp->sd_quota_inode);
+	struct gfs2_quota q;
+	struct gfs2_quota_lvb *qlvb;
+	loff_t pos;
+	int error;
+
+	memset(&q, 0, sizeof(struct gfs2_quota));
+	pos = qd2offset(qd);
+	error = gfs2_internal_read(ip, NULL, (char *)&q, &pos, sizeof(q));
+	if (error < 0)
+		return error;
+
+	qlvb = (struct gfs2_quota_lvb *)qd->qd_gl->gl_lvb;
+	qlvb->qb_magic = cpu_to_be32(GFS2_MAGIC);
+	qlvb->__pad = 0;
+	qlvb->qb_limit = q.qu_limit;
+	qlvb->qb_warn = q.qu_warn;
+	qlvb->qb_value = q.qu_value;
+	qd->qd_qb = *qlvb;
+
+	return 0;
+}
+
 static int do_glock(struct gfs2_quota_data *qd, int force_refresh,
 		    struct gfs2_holder *q_gh)
 {
 	struct gfs2_sbd *sdp = qd->qd_gl->gl_sbd;
 	struct gfs2_inode *ip = GFS2_I(sdp->sd_quota_inode);
 	struct gfs2_holder i_gh;
-	struct gfs2_quota_host q;
-	char buf[sizeof(struct gfs2_quota)];
 	int error;
-	struct gfs2_quota_lvb *qlvb;
 
 restart:
 	error = gfs2_glock_nq_init(qd->qd_gl, LM_ST_SHARED, 0, q_gh);
@@ -841,11 +865,9 @@ restart:
 	qd->qd_qb = *(struct gfs2_quota_lvb *)qd->qd_gl->gl_lvb;
 
 	if (force_refresh || qd->qd_qb.qb_magic != cpu_to_be32(GFS2_MAGIC)) {
-		loff_t pos;
 		gfs2_glock_dq_uninit(q_gh);
-		error = gfs2_glock_nq_init(qd->qd_gl,
-					   LM_ST_EXCLUSIVE, GL_NOCACHE,
-					   q_gh);
+		error = gfs2_glock_nq_init(qd->qd_gl, LM_ST_EXCLUSIVE,
+					   GL_NOCACHE, q_gh);
 		if (error)
 			return error;
 
@@ -853,29 +875,14 @@ restart:
 		if (error)
 			goto fail;
 
-		memset(buf, 0, sizeof(struct gfs2_quota));
-		pos = qd2offset(qd);
-		error = gfs2_internal_read(ip, NULL, buf, &pos,
-					   sizeof(struct gfs2_quota));
-		if (error < 0)
+		error = update_qd(sdp, qd);
+		if (error)
 			goto fail_gunlock;
 
 		gfs2_glock_dq_uninit(&i_gh);
-
-		gfs2_quota_in(&q, buf);
-		qlvb = (struct gfs2_quota_lvb *)qd->qd_gl->gl_lvb;
-		qlvb->qb_magic = cpu_to_be32(GFS2_MAGIC);
-		qlvb->__pad = 0;
-		qlvb->qb_limit = cpu_to_be64(q.qu_limit);
-		qlvb->qb_warn = cpu_to_be64(q.qu_warn);
-		qlvb->qb_value = cpu_to_be64(q.qu_value);
-		qd->qd_qb = *qlvb;
-
-		if (gfs2_glock_is_blocking(qd->qd_gl)) {
-			gfs2_glock_dq_uninit(q_gh);
-			force_refresh = 0;
-			goto restart;
-		}
+		gfs2_glock_dq_uninit(q_gh);
+		force_refresh = 0;
+		goto restart;
 	}
 
 	return 0;
@@ -995,7 +1002,7 @@ static int print_message(struct gfs2_quota_data *qd, char *type)
 {
 	struct gfs2_sbd *sdp = qd->qd_gl->gl_sbd;
 
-	printk(KERN_INFO "GFS2: fsid=%s: quota %s for %s %u\r\n",
+	printk(KERN_INFO "GFS2: fsid=%s: quota %s for %s %u\n",
 	       sdp->sd_fsname, type,
 	       (test_bit(QDF_USER, &qd->qd_flags)) ? "user" : "group",
 	       qd->qd_id);
@@ -1032,6 +1039,10 @@ int gfs2_quota_check(struct gfs2_inode *ip, u32 uid, u32 gid)
 
 		if (be64_to_cpu(qd->qd_qb.qb_limit) && (s64)be64_to_cpu(qd->qd_qb.qb_limit) < value) {
 			print_message(qd, "exceeded");
+			quota_send_warning(test_bit(QDF_USER, &qd->qd_flags) ?
+					   USRQUOTA : GRPQUOTA, qd->qd_id,
+					   sdp->sd_vfs->s_dev, QUOTA_NL_BHARDWARN);
+
 			error = -EDQUOT;
 			break;
 		} else if (be64_to_cpu(qd->qd_qb.qb_warn) &&
@@ -1039,6 +1050,9 @@ int gfs2_quota_check(struct gfs2_inode *ip, u32 uid, u32 gid)
 			   time_after_eq(jiffies, qd->qd_last_warn +
 					 gfs2_tune_get(sdp,
 						gt_quota_warn_period) * HZ)) {
+			quota_send_warning(test_bit(QDF_USER, &qd->qd_flags) ?
+					   USRQUOTA : GRPQUOTA, qd->qd_id,
+					   sdp->sd_vfs->s_dev, QUOTA_NL_BSOFTWARN);
 			error = print_message(qd, "warning");
 			qd->qd_last_warn = jiffies;
 		}
@@ -1069,8 +1083,9 @@ void gfs2_quota_change(struct gfs2_inode *ip, s64 change,
 	}
 }
 
-int gfs2_quota_sync(struct gfs2_sbd *sdp)
+int gfs2_quota_sync(struct super_block *sb, int type)
 {
+	struct gfs2_sbd *sdp = sb->s_fs_info;
 	struct gfs2_quota_data **qda;
 	unsigned int max_qd = gfs2_tune_get(sdp, gt_quota_simul_sync);
 	unsigned int num_qd;
@@ -1118,7 +1133,7 @@ int gfs2_quota_refresh(struct gfs2_sbd *sdp, int user, u32 id)
 	struct gfs2_holder q_gh;
 	int error;
 
-	error = qd_get(sdp, user, id, CREATE, &qd);
+	error = qd_get(sdp, user, id, &qd);
 	if (error)
 		return error;
 
@@ -1127,7 +1142,6 @@ int gfs2_quota_refresh(struct gfs2_sbd *sdp, int user, u32 id)
 		gfs2_glock_dq_uninit(&q_gh);
 
 	qd_put(qd);
-
 	return error;
 }
 
@@ -1298,12 +1312,12 @@ static void quotad_error(struct gfs2_sbd *sdp, const char *msg, int error)
 }
 
 static void quotad_check_timeo(struct gfs2_sbd *sdp, const char *msg,
-			       int (*fxn)(struct gfs2_sbd *sdp),
+			       int (*fxn)(struct super_block *sb, int type),
 			       unsigned long t, unsigned long *timeo,
 			       unsigned int *new_timeo)
 {
 	if (t >= *timeo) {
-		int error = fxn(sdp);
+		int error = fxn(sdp->sd_vfs, 0);
 		quotad_error(sdp, msg, error);
 		*timeo = gfs2_tune_get_i(&sdp->sd_tune, new_timeo) * HZ;
 	} else {
@@ -1330,6 +1344,14 @@ static void quotad_check_trunc_list(struct gfs2_sbd *sdp)
 	}
 }
 
+void gfs2_wake_up_statfs(struct gfs2_sbd *sdp) {
+	if (!sdp->sd_statfs_force_sync) {
+		sdp->sd_statfs_force_sync = 1;
+		wake_up(&sdp->sd_quota_wait);
+	}
+}
+
+
 /**
  * gfs2_quotad - Write cached quota changes into the quota file
  * @sdp: Pointer to GFS2 superblock
@@ -1349,8 +1371,15 @@ int gfs2_quotad(void *data)
 	while (!kthread_should_stop()) {
 
 		/* Update the master statfs file */
-		quotad_check_timeo(sdp, "statfs", gfs2_statfs_sync, t,
-				   &statfs_timeo, &tune->gt_statfs_quantum);
+		if (sdp->sd_statfs_force_sync) {
+			int error = gfs2_statfs_sync(sdp->sd_vfs, 0);
+			quotad_error(sdp, "statfs", error);
+			statfs_timeo = gfs2_tune_get(sdp, gt_statfs_quantum) * HZ;
+		}
+		else
+			quotad_check_timeo(sdp, "statfs", gfs2_statfs_sync, t,
+				   	   &statfs_timeo,
+					   &tune->gt_statfs_quantum);
 
 		/* Update quota file */
 		quotad_check_timeo(sdp, "sync", gfs2_quota_sync, t,
@@ -1367,7 +1396,7 @@ int gfs2_quotad(void *data)
 		spin_lock(&sdp->sd_trunc_lock);
 		empty = list_empty(&sdp->sd_trunc_list);
 		spin_unlock(&sdp->sd_trunc_lock);
-		if (empty)
+		if (empty && !sdp->sd_statfs_force_sync)
 			t -= schedule_timeout(t);
 		else
 			t = 0;
@@ -1377,3 +1406,181 @@ int gfs2_quotad(void *data)
 	return 0;
 }
 
+static int gfs2_quota_get_xstate(struct super_block *sb,
+				 struct fs_quota_stat *fqs)
+{
+	struct gfs2_sbd *sdp = sb->s_fs_info;
+
+	memset(fqs, 0, sizeof(struct fs_quota_stat));
+	fqs->qs_version = FS_QSTAT_VERSION;
+	if (sdp->sd_args.ar_quota == GFS2_QUOTA_ON)
+		fqs->qs_flags = (XFS_QUOTA_UDQ_ENFD | XFS_QUOTA_GDQ_ENFD);
+	else if (sdp->sd_args.ar_quota == GFS2_QUOTA_ACCOUNT)
+		fqs->qs_flags = (XFS_QUOTA_UDQ_ACCT | XFS_QUOTA_GDQ_ACCT);
+	if (sdp->sd_quota_inode) {
+		fqs->qs_uquota.qfs_ino = GFS2_I(sdp->sd_quota_inode)->i_no_addr;
+		fqs->qs_uquota.qfs_nblks = sdp->sd_quota_inode->i_blocks;
+	}
+	fqs->qs_uquota.qfs_nextents = 1; /* unsupported */
+	fqs->qs_gquota = fqs->qs_uquota; /* its the same inode in both cases */
+	fqs->qs_incoredqs = atomic_read(&qd_lru_count);
+	return 0;
+}
+
+static int gfs2_xquota_get(struct super_block *sb, int type, qid_t id,
+			   struct fs_disk_quota *fdq)
+{
+	struct gfs2_sbd *sdp = sb->s_fs_info;
+	struct gfs2_quota_lvb *qlvb;
+	struct gfs2_quota_data *qd;
+	struct gfs2_holder q_gh;
+	int error;
+
+	memset(fdq, 0, sizeof(struct fs_disk_quota));
+
+	if (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF)
+		return -ESRCH; /* Crazy XFS error code */
+
+	if (type == USRQUOTA)
+		type = QUOTA_USER;
+	else if (type == GRPQUOTA)
+		type = QUOTA_GROUP;
+	else
+		return -EINVAL;
+
+	error = qd_get(sdp, type, id, &qd);
+	if (error)
+		return error;
+	error = do_glock(qd, FORCE, &q_gh);
+	if (error)
+		goto out;
+
+	qlvb = (struct gfs2_quota_lvb *)qd->qd_gl->gl_lvb;
+	fdq->d_version = FS_DQUOT_VERSION;
+	fdq->d_flags = (type == QUOTA_USER) ? XFS_USER_QUOTA : XFS_GROUP_QUOTA;
+	fdq->d_id = id;
+	fdq->d_blk_hardlimit = be64_to_cpu(qlvb->qb_limit);
+	fdq->d_blk_softlimit = be64_to_cpu(qlvb->qb_warn);
+	fdq->d_bcount = be64_to_cpu(qlvb->qb_value);
+
+	gfs2_glock_dq_uninit(&q_gh);
+out:
+	qd_put(qd);
+	return error;
+}
+
+/* GFS2 only supports a subset of the XFS fields */
+#define GFS2_FIELDMASK (FS_DQ_BSOFT|FS_DQ_BHARD)
+
+static int gfs2_xquota_set(struct super_block *sb, int type, qid_t id,
+			   struct fs_disk_quota *fdq)
+{
+	struct gfs2_sbd *sdp = sb->s_fs_info;
+	struct gfs2_inode *ip = GFS2_I(sdp->sd_quota_inode);
+	struct gfs2_quota_data *qd;
+	struct gfs2_holder q_gh, i_gh;
+	unsigned int data_blocks, ind_blocks;
+	unsigned int blocks = 0;
+	int alloc_required;
+	struct gfs2_alloc *al;
+	loff_t offset;
+	int error;
+
+	if (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF)
+		return -ESRCH; /* Crazy XFS error code */
+
+	switch(type) {
+	case USRQUOTA:
+		type = QUOTA_USER;
+		if (fdq->d_flags != XFS_USER_QUOTA)
+			return -EINVAL;
+		break;
+	case GRPQUOTA:
+		type = QUOTA_GROUP;
+		if (fdq->d_flags != XFS_GROUP_QUOTA)
+			return -EINVAL;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (fdq->d_fieldmask & ~GFS2_FIELDMASK)
+		return -EINVAL;
+	if (fdq->d_id != id)
+		return -EINVAL;
+
+	error = qd_get(sdp, type, id, &qd);
+	if (error)
+		return error;
+
+	mutex_lock(&ip->i_inode.i_mutex);
+	error = gfs2_glock_nq_init(qd->qd_gl, LM_ST_EXCLUSIVE, 0, &q_gh);
+	if (error)
+		goto out_put;
+	error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &i_gh);
+	if (error)
+		goto out_q;
+
+	/* Check for existing entry, if none then alloc new blocks */
+	error = update_qd(sdp, qd);
+	if (error)
+		goto out_i;
+
+	/* If nothing has changed, this is a no-op */
+	if ((fdq->d_fieldmask & FS_DQ_BSOFT) &&
+	    (fdq->d_blk_softlimit == be64_to_cpu(qd->qd_qb.qb_warn)))
+		fdq->d_fieldmask ^= FS_DQ_BSOFT;
+	if ((fdq->d_fieldmask & FS_DQ_BHARD) &&
+	    (fdq->d_blk_hardlimit == be64_to_cpu(qd->qd_qb.qb_limit)))
+		fdq->d_fieldmask ^= FS_DQ_BHARD;
+	if (fdq->d_fieldmask == 0)
+		goto out_i;
+
+	offset = qd2offset(qd);
+	error = gfs2_write_alloc_required(ip, offset, sizeof(struct gfs2_quota),
+					  &alloc_required);
+	if (error)
+		goto out_i;
+	if (alloc_required) {
+		al = gfs2_alloc_get(ip);
+		if (al == NULL)
+			goto out_i;
+		gfs2_write_calc_reserv(ip, sizeof(struct gfs2_quota),
+				       &data_blocks, &ind_blocks);
+		blocks = al->al_requested = 1 + data_blocks + ind_blocks;
+		error = gfs2_inplace_reserve(ip);
+		if (error)
+			goto out_alloc;
+	}
+
+	error = gfs2_trans_begin(sdp, blocks + RES_DINODE + 1, 0);
+	if (error)
+		goto out_release;
+
+	/* Apply changes */
+	error = gfs2_adjust_quota(ip, offset, 0, qd, fdq);
+
+	gfs2_trans_end(sdp);
+out_release:
+	if (alloc_required) {
+		gfs2_inplace_release(ip);
+out_alloc:
+		gfs2_alloc_put(ip);
+	}
+out_i:
+	gfs2_glock_dq_uninit(&i_gh);
+out_q:
+	gfs2_glock_dq_uninit(&q_gh);
+out_put:
+	mutex_unlock(&ip->i_inode.i_mutex);
+	qd_put(qd);
+	return error;
+}
+
+const struct quotactl_ops gfs2_quotactl_ops = {
+	.quota_sync     = gfs2_quota_sync,
+	.get_xstate     = gfs2_quota_get_xstate,
+	.get_xquota	= gfs2_xquota_get,
+	.set_xquota	= gfs2_xquota_set,
+};
+
diff --git a/fs/gfs2/quota.h b/fs/gfs2/quota.h
index 0fa5fa63d0e..e271fa07ad0 100644
--- a/fs/gfs2/quota.h
+++ b/fs/gfs2/quota.h
@@ -25,13 +25,15 @@ extern int gfs2_quota_check(struct gfs2_inode *ip, u32 uid, u32 gid);
 extern void gfs2_quota_change(struct gfs2_inode *ip, s64 change,
 			      u32 uid, u32 gid);
 
-extern int gfs2_quota_sync(struct gfs2_sbd *sdp);
+extern int gfs2_quota_sync(struct super_block *sb, int type);
 extern int gfs2_quota_refresh(struct gfs2_sbd *sdp, int user, u32 id);
 
 extern int gfs2_quota_init(struct gfs2_sbd *sdp);
 extern void gfs2_quota_cleanup(struct gfs2_sbd *sdp);
 extern int gfs2_quotad(void *data);
 
+extern void gfs2_wake_up_statfs(struct gfs2_sbd *sdp);
+
 static inline int gfs2_quota_lock_check(struct gfs2_inode *ip)
 {
 	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
@@ -50,5 +52,6 @@ static inline int gfs2_quota_lock_check(struct gfs2_inode *ip)
 }
 
 extern int gfs2_shrink_qd_memory(int nr, gfp_t gfp_mask);
+extern const struct quotactl_ops gfs2_quotactl_ops;
 
 #endif /* __QUOTA_DOT_H__ */
diff --git a/fs/gfs2/recovery.c b/fs/gfs2/recovery.c
index 59d2695509d..4b9bece3d43 100644
--- a/fs/gfs2/recovery.c
+++ b/fs/gfs2/recovery.c
@@ -7,6 +7,7 @@
  * of the GNU General Public License version 2.
  */
 
+#include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/completion.h>
@@ -409,7 +410,9 @@ static int clean_journal(struct gfs2_jdesc *jd, struct gfs2_log_header_host *hea
 	memset(lh, 0, sizeof(struct gfs2_log_header));
 	lh->lh_header.mh_magic = cpu_to_be32(GFS2_MAGIC);
 	lh->lh_header.mh_type = cpu_to_be32(GFS2_METATYPE_LH);
+	lh->lh_header.__pad0 = cpu_to_be64(0);
 	lh->lh_header.mh_format = cpu_to_be32(GFS2_FORMAT_LH);
+	lh->lh_header.mh_jid = cpu_to_be32(sdp->sd_jdesc->jd_jid);
 	lh->lh_sequence = cpu_to_be64(head->lh_sequence + 1);
 	lh->lh_flags = cpu_to_be32(GFS2_LOG_HEAD_UNMOUNT);
 	lh->lh_blkno = cpu_to_be32(lblock);
@@ -593,6 +596,7 @@ fail:
 }
 
 struct slow_work_ops gfs2_recover_ops = {
+	.owner	 = THIS_MODULE,
 	.get_ref = gfs2_recover_get_ref,
 	.put_ref = gfs2_recover_put_ref,
 	.execute = gfs2_recover_work,
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 8f1cfb02a6c..0608f490c29 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -1710,11 +1710,16 @@ int gfs2_check_blk_type(struct gfs2_sbd *sdp, u64 no_addr, unsigned int type)
 {
 	struct gfs2_rgrpd *rgd;
 	struct gfs2_holder ri_gh, rgd_gh;
+	struct gfs2_inode *ip = GFS2_I(sdp->sd_rindex);
+	int ri_locked = 0;
 	int error;
 
-	error = gfs2_rindex_hold(sdp, &ri_gh);
-	if (error)
-		goto fail;
+	if (!gfs2_glock_is_locked_by_me(ip->i_gl)) {
+		error = gfs2_rindex_hold(sdp, &ri_gh);
+		if (error)
+			goto fail;
+		ri_locked = 1;
+	}
 
 	error = -EINVAL;
 	rgd = gfs2_blk2rgrpd(sdp, no_addr);
@@ -1730,7 +1735,8 @@ int gfs2_check_blk_type(struct gfs2_sbd *sdp, u64 no_addr, unsigned int type)
 
 	gfs2_glock_dq_uninit(&rgd_gh);
 fail_rindex:
-	gfs2_glock_dq_uninit(&ri_gh);
+	if (ri_locked)
+		gfs2_glock_dq_uninit(&ri_gh);
 fail:
 	return error;
 }
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index 0ec3ec672de..c282ad41f3d 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -70,6 +70,11 @@ enum {
 	Opt_commit,
 	Opt_err_withdraw,
 	Opt_err_panic,
+	Opt_statfs_quantum,
+	Opt_statfs_percent,
+	Opt_quota_quantum,
+	Opt_barrier,
+	Opt_nobarrier,
 	Opt_error,
 };
 
@@ -101,18 +106,23 @@ static const match_table_t tokens = {
 	{Opt_commit, "commit=%d"},
 	{Opt_err_withdraw, "errors=withdraw"},
 	{Opt_err_panic, "errors=panic"},
+	{Opt_statfs_quantum, "statfs_quantum=%d"},
+	{Opt_statfs_percent, "statfs_percent=%d"},
+	{Opt_quota_quantum, "quota_quantum=%d"},
+	{Opt_barrier, "barrier"},
+	{Opt_nobarrier, "nobarrier"},
 	{Opt_error, NULL}
 };
 
 /**
  * gfs2_mount_args - Parse mount options
- * @sdp:
- * @data:
+ * @args: The structure into which the parsed options will be written
+ * @options: The options to parse
  *
  * Return: errno
  */
 
-int gfs2_mount_args(struct gfs2_sbd *sdp, struct gfs2_args *args, char *options)
+int gfs2_mount_args(struct gfs2_args *args, char *options)
 {
 	char *o;
 	int token;
@@ -157,7 +167,7 @@ int gfs2_mount_args(struct gfs2_sbd *sdp, struct gfs2_args *args, char *options)
 			break;
 		case Opt_debug:
 			if (args->ar_errors == GFS2_ERRORS_PANIC) {
-				fs_info(sdp, "-o debug and -o errors=panic "
+				printk(KERN_WARNING "GFS2: -o debug and -o errors=panic "
 				       "are mutually exclusive.\n");
 				return -EINVAL;
 			}
@@ -210,7 +220,29 @@ int gfs2_mount_args(struct gfs2_sbd *sdp, struct gfs2_args *args, char *options)
 		case Opt_commit:
 			rv = match_int(&tmp[0], &args->ar_commit);
 			if (rv || args->ar_commit <= 0) {
-				fs_info(sdp, "commit mount option requires a positive numeric argument\n");
+				printk(KERN_WARNING "GFS2: commit mount option requires a positive numeric argument\n");
+				return rv ? rv : -EINVAL;
+			}
+			break;
+		case Opt_statfs_quantum:
+			rv = match_int(&tmp[0], &args->ar_statfs_quantum);
+			if (rv || args->ar_statfs_quantum < 0) {
+				printk(KERN_WARNING "GFS2: statfs_quantum mount option requires a non-negative numeric argument\n");
+				return rv ? rv : -EINVAL;
+			}
+			break;
+		case Opt_quota_quantum:
+			rv = match_int(&tmp[0], &args->ar_quota_quantum);
+			if (rv || args->ar_quota_quantum <= 0) {
+				printk(KERN_WARNING "GFS2: quota_quantum mount option requires a positive numeric argument\n");
+				return rv ? rv : -EINVAL;
+			}
+			break;
+		case Opt_statfs_percent:
+			rv = match_int(&tmp[0], &args->ar_statfs_percent);
+			if (rv || args->ar_statfs_percent < 0 ||
+			    args->ar_statfs_percent > 100) {
+				printk(KERN_WARNING "statfs_percent mount option requires a numeric argument between 0 and 100\n");
 				return rv ? rv : -EINVAL;
 			}
 			break;
@@ -219,15 +251,21 @@ int gfs2_mount_args(struct gfs2_sbd *sdp, struct gfs2_args *args, char *options)
 			break;
 		case Opt_err_panic:
 			if (args->ar_debug) {
-				fs_info(sdp, "-o debug and -o errors=panic "
+				printk(KERN_WARNING "GFS2: -o debug and -o errors=panic "
 					"are mutually exclusive.\n");
 				return -EINVAL;
 			}
 			args->ar_errors = GFS2_ERRORS_PANIC;
 			break;
+		case Opt_barrier:
+			args->ar_nobarrier = 0;
+			break;
+		case Opt_nobarrier:
+			args->ar_nobarrier = 1;
+			break;
 		case Opt_error:
 		default:
-			fs_info(sdp, "invalid mount option: %s\n", o);
+			printk(KERN_WARNING "GFS2: invalid mount option: %s\n", o);
 			return -EINVAL;
 		}
 	}
@@ -442,7 +480,10 @@ void gfs2_statfs_change(struct gfs2_sbd *sdp, s64 total, s64 free,
 {
 	struct gfs2_inode *l_ip = GFS2_I(sdp->sd_sc_inode);
 	struct gfs2_statfs_change_host *l_sc = &sdp->sd_statfs_local;
+	struct gfs2_statfs_change_host *m_sc = &sdp->sd_statfs_master;
 	struct buffer_head *l_bh;
+	s64 x, y;
+	int need_sync = 0;
 	int error;
 
 	error = gfs2_meta_inode_buffer(l_ip, &l_bh);
@@ -456,9 +497,17 @@ void gfs2_statfs_change(struct gfs2_sbd *sdp, s64 total, s64 free,
 	l_sc->sc_free += free;
 	l_sc->sc_dinodes += dinodes;
 	gfs2_statfs_change_out(l_sc, l_bh->b_data + sizeof(struct gfs2_dinode));
+	if (sdp->sd_args.ar_statfs_percent) {
+		x = 100 * l_sc->sc_free;
+		y = m_sc->sc_free * sdp->sd_args.ar_statfs_percent;
+		if (x >= y || x <= -y)
+			need_sync = 1;
+	}
 	spin_unlock(&sdp->sd_statfs_spin);
 
 	brelse(l_bh);
+	if (need_sync)
+		gfs2_wake_up_statfs(sdp);
 }
 
 void update_statfs(struct gfs2_sbd *sdp, struct buffer_head *m_bh,
@@ -484,8 +533,9 @@ void update_statfs(struct gfs2_sbd *sdp, struct buffer_head *m_bh,
 	gfs2_statfs_change_out(m_sc, m_bh->b_data + sizeof(struct gfs2_dinode));
 }
 
-int gfs2_statfs_sync(struct gfs2_sbd *sdp)
+int gfs2_statfs_sync(struct super_block *sb, int type)
 {
+	struct gfs2_sbd *sdp = sb->s_fs_info;
 	struct gfs2_inode *m_ip = GFS2_I(sdp->sd_statfs_inode);
 	struct gfs2_inode *l_ip = GFS2_I(sdp->sd_sc_inode);
 	struct gfs2_statfs_change_host *m_sc = &sdp->sd_statfs_master;
@@ -521,6 +571,7 @@ int gfs2_statfs_sync(struct gfs2_sbd *sdp)
 		goto out_bh2;
 
 	update_statfs(sdp, m_bh, l_bh);
+	sdp->sd_statfs_force_sync = 0;
 
 	gfs2_trans_end(sdp);
 
@@ -712,8 +763,8 @@ static int gfs2_make_fs_ro(struct gfs2_sbd *sdp)
 	int error;
 
 	flush_workqueue(gfs2_delete_workqueue);
-	gfs2_quota_sync(sdp);
-	gfs2_statfs_sync(sdp);
+	gfs2_quota_sync(sdp->sd_vfs, 0);
+	gfs2_statfs_sync(sdp->sd_vfs, 0);
 
 	error = gfs2_glock_nq_init(sdp->sd_trans_gl, LM_ST_SHARED, GL_NOCACHE,
 				   &t_gh);
@@ -1061,8 +1112,13 @@ static int gfs2_remount_fs(struct super_block *sb, int *flags, char *data)
 
 	spin_lock(&gt->gt_spin);
 	args.ar_commit = gt->gt_log_flush_secs;
+	args.ar_quota_quantum = gt->gt_quota_quantum;
+	if (gt->gt_statfs_slow)
+		args.ar_statfs_quantum = 0;
+	else
+		args.ar_statfs_quantum = gt->gt_statfs_quantum;
 	spin_unlock(&gt->gt_spin);
-	error = gfs2_mount_args(sdp, &args, data);
+	error = gfs2_mount_args(&args, data);
 	if (error)
 		return error;
 
@@ -1097,8 +1153,21 @@ static int gfs2_remount_fs(struct super_block *sb, int *flags, char *data)
 		sb->s_flags |= MS_POSIXACL;
 	else
 		sb->s_flags &= ~MS_POSIXACL;
+	if (sdp->sd_args.ar_nobarrier)
+		set_bit(SDF_NOBARRIERS, &sdp->sd_flags);
+	else
+		clear_bit(SDF_NOBARRIERS, &sdp->sd_flags);
 	spin_lock(&gt->gt_spin);
 	gt->gt_log_flush_secs = args.ar_commit;
+	gt->gt_quota_quantum = args.ar_quota_quantum;
+	if (args.ar_statfs_quantum) {
+		gt->gt_statfs_slow = 0;
+		gt->gt_statfs_quantum = args.ar_statfs_quantum;
+	}
+	else {
+		gt->gt_statfs_slow = 1;
+		gt->gt_statfs_quantum = 30;
+	}
 	spin_unlock(&gt->gt_spin);
 
 	gfs2_online_uevent(sdp);
@@ -1179,7 +1248,7 @@ static int gfs2_show_options(struct seq_file *s, struct vfsmount *mnt)
 {
 	struct gfs2_sbd *sdp = mnt->mnt_sb->s_fs_info;
 	struct gfs2_args *args = &sdp->sd_args;
-	int lfsecs;
+	int val;
 
 	if (is_ancestor(mnt->mnt_root, sdp->sd_master_dir))
 		seq_printf(s, ",meta");
@@ -1240,9 +1309,17 @@ static int gfs2_show_options(struct seq_file *s, struct vfsmount *mnt)
 	}
 	if (args->ar_discard)
 		seq_printf(s, ",discard");
-	lfsecs = sdp->sd_tune.gt_log_flush_secs;
-	if (lfsecs != 60)
-		seq_printf(s, ",commit=%d", lfsecs);
+	val = sdp->sd_tune.gt_log_flush_secs;
+	if (val != 60)
+		seq_printf(s, ",commit=%d", val);
+	val = sdp->sd_tune.gt_statfs_quantum;
+	if (val != 30)
+		seq_printf(s, ",statfs_quantum=%d", val);
+	val = sdp->sd_tune.gt_quota_quantum;
+	if (val != 60)
+		seq_printf(s, ",quota_quantum=%d", val);
+	if (args->ar_statfs_percent)
+		seq_printf(s, ",statfs_percent=%d", args->ar_statfs_percent);
 	if (args->ar_errors != GFS2_ERRORS_DEFAULT) {
 		const char *state;
 
@@ -1259,6 +1336,9 @@ static int gfs2_show_options(struct seq_file *s, struct vfsmount *mnt)
 		}
 		seq_printf(s, ",errors=%s", state);
 	}
+	if (test_bit(SDF_NOBARRIERS, &sdp->sd_flags))
+		seq_printf(s, ",nobarrier");
+
 	return 0;
 }
 
diff --git a/fs/gfs2/super.h b/fs/gfs2/super.h
index 235db368288..3df60f2d84e 100644
--- a/fs/gfs2/super.h
+++ b/fs/gfs2/super.h
@@ -27,7 +27,7 @@ static inline unsigned int gfs2_jindex_size(struct gfs2_sbd *sdp)
 
 extern void gfs2_jindex_free(struct gfs2_sbd *sdp);
 
-extern int gfs2_mount_args(struct gfs2_sbd *sdp, struct gfs2_args *args, char *data);
+extern int gfs2_mount_args(struct gfs2_args *args, char *data);
 
 extern struct gfs2_jdesc *gfs2_jdesc_find(struct gfs2_sbd *sdp, unsigned int jid);
 extern int gfs2_jdesc_check(struct gfs2_jdesc *jd);
@@ -44,7 +44,7 @@ extern void gfs2_statfs_change_in(struct gfs2_statfs_change_host *sc,
 				  const void *buf);
 extern void update_statfs(struct gfs2_sbd *sdp, struct buffer_head *m_bh,
 			  struct buffer_head *l_bh);
-extern int gfs2_statfs_sync(struct gfs2_sbd *sdp);
+extern int gfs2_statfs_sync(struct super_block *sb, int type);
 
 extern int gfs2_freeze_fs(struct gfs2_sbd *sdp);
 extern void gfs2_unfreeze_fs(struct gfs2_sbd *sdp);
diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c
index 446329728d5..c5dad1eb7b9 100644
--- a/fs/gfs2/sys.c
+++ b/fs/gfs2/sys.c
@@ -158,7 +158,7 @@ static ssize_t statfs_sync_store(struct gfs2_sbd *sdp, const char *buf,
 	if (simple_strtol(buf, NULL, 0) != 1)
 		return -EINVAL;
 
-	gfs2_statfs_sync(sdp);
+	gfs2_statfs_sync(sdp->sd_vfs, 0);
 	return len;
 }
 
@@ -171,13 +171,14 @@ static ssize_t quota_sync_store(struct gfs2_sbd *sdp, const char *buf,
 	if (simple_strtol(buf, NULL, 0) != 1)
 		return -EINVAL;
 
-	gfs2_quota_sync(sdp);
+	gfs2_quota_sync(sdp->sd_vfs, 0);
 	return len;
 }
 
 static ssize_t quota_refresh_user_store(struct gfs2_sbd *sdp, const char *buf,
 					size_t len)
 {
+	int error;
 	u32 id;
 
 	if (!capable(CAP_SYS_ADMIN))
@@ -185,13 +186,14 @@ static ssize_t quota_refresh_user_store(struct gfs2_sbd *sdp, const char *buf,
 
 	id = simple_strtoul(buf, NULL, 0);
 
-	gfs2_quota_refresh(sdp, 1, id);
-	return len;
+	error = gfs2_quota_refresh(sdp, 1, id);
+	return error ? error : len;
 }
 
 static ssize_t quota_refresh_group_store(struct gfs2_sbd *sdp, const char *buf,
 					 size_t len)
 {
+	int error;
 	u32 id;
 
 	if (!capable(CAP_SYS_ADMIN))
@@ -199,8 +201,8 @@ static ssize_t quota_refresh_group_store(struct gfs2_sbd *sdp, const char *buf,
 
 	id = simple_strtoul(buf, NULL, 0);
 
-	gfs2_quota_refresh(sdp, 0, id);
-	return len;
+	error = gfs2_quota_refresh(sdp, 0, id);
+	return error ? error : len;
 }
 
 static ssize_t demote_rq_store(struct gfs2_sbd *sdp, const char *buf, size_t len)
diff --git a/fs/gfs2/xattr.c b/fs/gfs2/xattr.c
index 8a0f8ef6ee2..912f5cbc474 100644
--- a/fs/gfs2/xattr.c
+++ b/fs/gfs2/xattr.c
@@ -186,8 +186,8 @@ static int ea_find_i(struct gfs2_inode *ip, struct buffer_head *bh,
 	return 0;
 }
 
-int gfs2_ea_find(struct gfs2_inode *ip, int type, const char *name,
-		 struct gfs2_ea_location *el)
+static int gfs2_ea_find(struct gfs2_inode *ip, int type, const char *name,
+			struct gfs2_ea_location *el)
 {
 	struct ea_find ef;
 	int error;
@@ -516,8 +516,8 @@ out:
 	return error;
 }
 
-int gfs2_ea_get_copy(struct gfs2_inode *ip, struct gfs2_ea_location *el,
-		     char *data, size_t size)
+static int gfs2_ea_get_copy(struct gfs2_inode *ip, struct gfs2_ea_location *el,
+			    char *data, size_t size)
 {
 	int ret;
 	size_t len = GFS2_EA_DATA_LEN(el->el_ea);
@@ -534,6 +534,36 @@ int gfs2_ea_get_copy(struct gfs2_inode *ip, struct gfs2_ea_location *el,
 	return len;
 }
 
+int gfs2_xattr_acl_get(struct gfs2_inode *ip, const char *name, char **ppdata)
+{
+	struct gfs2_ea_location el;
+	int error;
+	int len;
+	char *data;
+
+	error = gfs2_ea_find(ip, GFS2_EATYPE_SYS, name, &el);
+	if (error)
+		return error;
+	if (!el.el_ea)
+		goto out;
+	if (!GFS2_EA_DATA_LEN(el.el_ea))
+		goto out;
+
+	len = GFS2_EA_DATA_LEN(el.el_ea);
+	data = kmalloc(len, GFP_NOFS);
+	error = -ENOMEM;
+	if (data == NULL)
+		goto out;
+
+	error = gfs2_ea_get_copy(ip, &el, data, len);
+	if (error == 0)
+		error = len;
+	*ppdata = data;
+out:
+	brelse(el.el_bh);
+	return error;
+}
+
 /**
  * gfs2_xattr_get - Get a GFS2 extended attribute
  * @inode: The inode
@@ -1259,22 +1289,26 @@ fail:
 	return error;
 }
 
-int gfs2_ea_acl_chmod(struct gfs2_inode *ip, struct gfs2_ea_location *el,
-		      struct iattr *attr, char *data)
+int gfs2_xattr_acl_chmod(struct gfs2_inode *ip, struct iattr *attr, char *data)
 {
+	struct gfs2_ea_location el;
 	struct buffer_head *dibh;
 	int error;
 
-	if (GFS2_EA_IS_STUFFED(el->el_ea)) {
+	error = gfs2_ea_find(ip, GFS2_EATYPE_SYS, GFS2_POSIX_ACL_ACCESS, &el);
+	if (error)
+		return error;
+
+	if (GFS2_EA_IS_STUFFED(el.el_ea)) {
 		error = gfs2_trans_begin(GFS2_SB(&ip->i_inode), RES_DINODE + RES_EATTR, 0);
 		if (error)
 			return error;
 
-		gfs2_trans_add_bh(ip->i_gl, el->el_bh, 1);
-		memcpy(GFS2_EA2DATA(el->el_ea), data,
-		       GFS2_EA_DATA_LEN(el->el_ea));
+		gfs2_trans_add_bh(ip->i_gl, el.el_bh, 1);
+		memcpy(GFS2_EA2DATA(el.el_ea), data,
+		       GFS2_EA_DATA_LEN(el.el_ea));
 	} else
-		error = ea_acl_chmod_unstuffed(ip, el->el_ea, data);
+		error = ea_acl_chmod_unstuffed(ip, el.el_ea, data);
 
 	if (error)
 		return error;
@@ -1507,18 +1541,6 @@ static int gfs2_xattr_user_set(struct inode *inode, const char *name,
 	return gfs2_xattr_set(inode, GFS2_EATYPE_USR, name, value, size, flags);
 }
 
-static int gfs2_xattr_system_get(struct inode *inode, const char *name,
-				 void *buffer, size_t size)
-{
-	return gfs2_xattr_get(inode, GFS2_EATYPE_SYS, name, buffer, size);
-}
-
-static int gfs2_xattr_system_set(struct inode *inode, const char *name,
-				 const void *value, size_t size, int flags)
-{
-	return gfs2_xattr_set(inode, GFS2_EATYPE_SYS, name, value, size, flags);
-}
-
 static int gfs2_xattr_security_get(struct inode *inode, const char *name,
 				   void *buffer, size_t size)
 {
@@ -1543,12 +1565,6 @@ static struct xattr_handler gfs2_xattr_security_handler = {
 	.set    = gfs2_xattr_security_set,
 };
 
-static struct xattr_handler gfs2_xattr_system_handler = {
-	.prefix = XATTR_SYSTEM_PREFIX,
-	.get    = gfs2_xattr_system_get,
-	.set    = gfs2_xattr_system_set,
-};
-
 struct xattr_handler *gfs2_xattr_handlers[] = {
 	&gfs2_xattr_user_handler,
 	&gfs2_xattr_security_handler,
diff --git a/fs/gfs2/xattr.h b/fs/gfs2/xattr.h
index cbdfd774373..8d6ae5813c4 100644
--- a/fs/gfs2/xattr.h
+++ b/fs/gfs2/xattr.h
@@ -62,11 +62,7 @@ extern int gfs2_ea_dealloc(struct gfs2_inode *ip);
 
 /* Exported to acl.c */
 
-extern int gfs2_ea_find(struct gfs2_inode *ip, int type, const char *name,
-			struct gfs2_ea_location *el);
-extern int gfs2_ea_get_copy(struct gfs2_inode *ip, struct gfs2_ea_location *el,
-			    char *data, size_t size);
-extern int gfs2_ea_acl_chmod(struct gfs2_inode *ip, struct gfs2_ea_location *el,
-			     struct iattr *attr, char *data);
+extern int gfs2_xattr_acl_get(struct gfs2_inode *ip, const char *name, char **data);
+extern int gfs2_xattr_acl_chmod(struct gfs2_inode *ip, struct iattr *attr, char *data);
 
 #endif /* __EATTR_DOT_H__ */
diff --git a/fs/inode.c b/fs/inode.c
index 4d8e3be5597..06c1f02de61 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -18,7 +18,6 @@
 #include <linux/hash.h>
 #include <linux/swap.h>
 #include <linux/security.h>
-#include <linux/ima.h>
 #include <linux/pagemap.h>
 #include <linux/cdev.h>
 #include <linux/bootmem.h>
@@ -157,11 +156,6 @@ int inode_init_always(struct super_block *sb, struct inode *inode)
 
 	if (security_inode_alloc(inode))
 		goto out;
-
-	/* allocate and initialize an i_integrity */
-	if (ima_inode_alloc(inode))
-		goto out_free_security;
-
 	spin_lock_init(&inode->i_lock);
 	lockdep_set_class(&inode->i_lock, &sb->s_type->i_lock_key);
 
@@ -201,9 +195,6 @@ int inode_init_always(struct super_block *sb, struct inode *inode)
 #endif
 
 	return 0;
-
-out_free_security:
-	security_inode_free(inode);
 out:
 	return -ENOMEM;
 }
@@ -235,7 +226,6 @@ static struct inode *alloc_inode(struct super_block *sb)
 void __destroy_inode(struct inode *inode)
 {
 	BUG_ON(inode_has_buffers(inode));
-	ima_inode_free(inode);
 	security_inode_free(inode);
 	fsnotify_inode_delete(inode);
 #ifdef CONFIG_FS_POSIX_ACL
diff --git a/fs/jffs2/read.c b/fs/jffs2/read.c
index cfe05c1966a..3f39be1b045 100644
--- a/fs/jffs2/read.c
+++ b/fs/jffs2/read.c
@@ -164,12 +164,15 @@ int jffs2_read_inode_range(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
 
 	/* XXX FIXME: Where a single physical node actually shows up in two
 	   frags, we read it twice. Don't do that. */
-	/* Now we're pointing at the first frag which overlaps our page */
+	/* Now we're pointing at the first frag which overlaps our page
+	 * (or perhaps is before it, if we've been asked to read off the
+	 * end of the file). */
 	while(offset < end) {
 		D2(printk(KERN_DEBUG "jffs2_read_inode_range: offset %d, end %d\n", offset, end));
-		if (unlikely(!frag || frag->ofs > offset)) {
+		if (unlikely(!frag || frag->ofs > offset ||
+			     frag->ofs + frag->size <= offset)) {
 			uint32_t holesize = end - offset;
-			if (frag) {
+			if (frag && frag->ofs > offset) {
 				D1(printk(KERN_NOTICE "Eep. Hole in ino #%u fraglist. frag->ofs = 0x%08x, offset = 0x%08x\n", f->inocache->ino, frag->ofs, offset));
 				holesize = min(holesize, frag->ofs - offset);
 			}
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 1a54ae14a19..e50cfa3d965 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -371,82 +371,74 @@ EXPORT_SYMBOL_GPL(lockd_down);
 
 static ctl_table nlm_sysctls[] = {
 	{
-		.ctl_name	= CTL_UNNUMBERED,
 		.procname	= "nlm_grace_period",
 		.data		= &nlm_grace_period,
 		.maxlen		= sizeof(unsigned long),
 		.mode		= 0644,
-		.proc_handler	= &proc_doulongvec_minmax,
+		.proc_handler	= proc_doulongvec_minmax,
 		.extra1		= (unsigned long *) &nlm_grace_period_min,
 		.extra2		= (unsigned long *) &nlm_grace_period_max,
 	},
 	{
-		.ctl_name	= CTL_UNNUMBERED,
 		.procname	= "nlm_timeout",
 		.data		= &nlm_timeout,
 		.maxlen		= sizeof(unsigned long),
 		.mode		= 0644,
-		.proc_handler	= &proc_doulongvec_minmax,
+		.proc_handler	= proc_doulongvec_minmax,
 		.extra1		= (unsigned long *) &nlm_timeout_min,
 		.extra2		= (unsigned long *) &nlm_timeout_max,
 	},
 	{
-		.ctl_name	= CTL_UNNUMBERED,
 		.procname	= "nlm_udpport",
 		.data		= &nlm_udpport,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_minmax,
+		.proc_handler	= proc_dointvec_minmax,
 		.extra1		= (int *) &nlm_port_min,
 		.extra2		= (int *) &nlm_port_max,
 	},
 	{
-		.ctl_name	= CTL_UNNUMBERED,
 		.procname	= "nlm_tcpport",
 		.data		= &nlm_tcpport,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_minmax,
+		.proc_handler	= proc_dointvec_minmax,
 		.extra1		= (int *) &nlm_port_min,
 		.extra2		= (int *) &nlm_port_max,
 	},
 	{
-		.ctl_name	= CTL_UNNUMBERED,
 		.procname	= "nsm_use_hostnames",
 		.data		= &nsm_use_hostnames,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec,
+		.proc_handler	= proc_dointvec,
 	},
 	{
-		.ctl_name	= CTL_UNNUMBERED,
 		.procname	= "nsm_local_state",
 		.data		= &nsm_local_state,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec,
+		.proc_handler	= proc_dointvec,
 	},
-	{ .ctl_name = 0 }
+	{ }
 };
 
 static ctl_table nlm_sysctl_dir[] = {
 	{
-		.ctl_name	= CTL_UNNUMBERED,
 		.procname	= "nfs",
 		.mode		= 0555,
 		.child		= nlm_sysctls,
 	},
-	{ .ctl_name = 0 }
+	{ }
 };
 
 static ctl_table nlm_sysctl_root[] = {
 	{
-		.ctl_name	= CTL_FS,
 		.procname	= "fs",
 		.mode		= 0555,
 		.child		= nlm_sysctl_dir,
 	},
-	{ .ctl_name = 0 }
+	{ }
 };
 
 #endif	/* CONFIG_SYSCTL */
diff --git a/fs/namespace.c b/fs/namespace.c
index bdc3cb4fd22..7d70d63ceb2 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1921,6 +1921,16 @@ long do_mount(char *dev_name, char *dir_name, char *type_page,
 	if (data_page)
 		((char *)data_page)[PAGE_SIZE - 1] = 0;
 
+	/* ... and get the mountpoint */
+	retval = kern_path(dir_name, LOOKUP_FOLLOW, &path);
+	if (retval)
+		return retval;
+
+	retval = security_sb_mount(dev_name, &path,
+				   type_page, flags, data_page);
+	if (retval)
+		goto dput_out;
+
 	/* Default to relatime unless overriden */
 	if (!(flags & MS_NOATIME))
 		mnt_flags |= MNT_RELATIME;
@@ -1945,16 +1955,6 @@ long do_mount(char *dev_name, char *dir_name, char *type_page,
 		   MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT |
 		   MS_STRICTATIME);
 
-	/* ... and get the mountpoint */
-	retval = kern_path(dir_name, LOOKUP_FOLLOW, &path);
-	if (retval)
-		return retval;
-
-	retval = security_sb_mount(dev_name, &path,
-				   type_page, flags, data_page);
-	if (retval)
-		goto dput_out;
-
 	if (flags & MS_REMOUNT)
 		retval = do_remount(&path, flags & ~MS_REMOUNT, mnt_flags,
 				    data_page);
diff --git a/fs/nfs/fscache.c b/fs/nfs/fscache.c
index 70fad69eb95..fa588006588 100644
--- a/fs/nfs/fscache.c
+++ b/fs/nfs/fscache.c
@@ -359,17 +359,13 @@ int nfs_fscache_release_page(struct page *page, gfp_t gfp)
 
 	BUG_ON(!cookie);
 
-	if (fscache_check_page_write(cookie, page)) {
-		if (!(gfp & __GFP_WAIT))
-			return 0;
-		fscache_wait_on_page_write(cookie, page);
-	}
-
 	if (PageFsCache(page)) {
 		dfprintk(FSCACHE, "NFS: fscache releasepage (0x%p/0x%p/0x%p)\n",
 			 cookie, page, nfsi);
 
-		fscache_uncache_page(cookie, page);
+		if (!fscache_maybe_release_page(cookie, page, gfp))
+			return 0;
+
 		nfs_add_fscache_stats(page->mapping->host,
 				      NFSIOS_FSCACHE_PAGES_UNCACHED, 1);
 	}
diff --git a/fs/nfs/sysctl.c b/fs/nfs/sysctl.c
index b62481dabae..70e1fbbaaea 100644
--- a/fs/nfs/sysctl.c
+++ b/fs/nfs/sysctl.c
@@ -22,63 +22,55 @@ static struct ctl_table_header *nfs_callback_sysctl_table;
 static ctl_table nfs_cb_sysctls[] = {
 #ifdef CONFIG_NFS_V4
 	{
-		.ctl_name = CTL_UNNUMBERED,
 		.procname = "nfs_callback_tcpport",
 		.data = &nfs_callback_set_tcpport,
 		.maxlen = sizeof(int),
 		.mode = 0644,
-		.proc_handler = &proc_dointvec_minmax,
+		.proc_handler = proc_dointvec_minmax,
 		.extra1 = (int *)&nfs_set_port_min,
 		.extra2 = (int *)&nfs_set_port_max,
 	},
 	{
-		.ctl_name = CTL_UNNUMBERED,
 		.procname = "idmap_cache_timeout",
 		.data = &nfs_idmap_cache_timeout,
 		.maxlen = sizeof(int),
 		.mode = 0644,
-		.proc_handler = &proc_dointvec_jiffies,
-		.strategy = &sysctl_jiffies,
+		.proc_handler = proc_dointvec_jiffies,
 	},
 #endif
 	{
-		.ctl_name	= CTL_UNNUMBERED,
 		.procname	= "nfs_mountpoint_timeout",
 		.data		= &nfs_mountpoint_expiry_timeout,
 		.maxlen		= sizeof(nfs_mountpoint_expiry_timeout),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_jiffies,
-		.strategy	= &sysctl_jiffies,
+		.proc_handler	= proc_dointvec_jiffies,
 	},
 	{
-		.ctl_name	= CTL_UNNUMBERED,
 		.procname	= "nfs_congestion_kb",
 		.data		= &nfs_congestion_kb,
 		.maxlen		= sizeof(nfs_congestion_kb),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec,
+		.proc_handler	= proc_dointvec,
 	},
-	{ .ctl_name = 0 }
+	{ }
 };
 
 static ctl_table nfs_cb_sysctl_dir[] = {
 	{
-		.ctl_name = CTL_UNNUMBERED,
 		.procname = "nfs",
 		.mode = 0555,
 		.child = nfs_cb_sysctls,
 	},
-	{ .ctl_name = 0 }
+	{ }
 };
 
 static ctl_table nfs_cb_sysctl_root[] = {
 	{
-		.ctl_name = CTL_FS,
 		.procname = "fs",
 		.mode = 0555,
 		.child = nfs_cb_sysctl_dir,
 	},
-	{ .ctl_name = 0 }
+	{ }
 };
 
 int nfs_register_sysctl(void)
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 53eb26c16b5..c84b5cc1a94 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -178,7 +178,7 @@ static int wb_priority(struct writeback_control *wbc)
 {
 	if (wbc->for_reclaim)
 		return FLUSH_HIGHPRI | FLUSH_STABLE;
-	if (wbc->for_kupdate)
+	if (wbc->for_kupdate || wbc->for_background)
 		return FLUSH_LOWPRI;
 	return 0;
 }
diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
index dcd2040d330..1d1d1a2765d 100644
--- a/fs/notify/inotify/inotify_user.c
+++ b/fs/notify/inotify/inotify_user.c
@@ -69,36 +69,30 @@ static int zero;
 
 ctl_table inotify_table[] = {
 	{
-		.ctl_name	= INOTIFY_MAX_USER_INSTANCES,
 		.procname	= "max_user_instances",
 		.data		= &inotify_max_user_instances,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_minmax,
-		.strategy	= &sysctl_intvec,
+		.proc_handler	= proc_dointvec_minmax,
 		.extra1		= &zero,
 	},
 	{
-		.ctl_name	= INOTIFY_MAX_USER_WATCHES,
 		.procname	= "max_user_watches",
 		.data		= &inotify_max_user_watches,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_minmax,
-		.strategy	= &sysctl_intvec,
+		.proc_handler	= proc_dointvec_minmax,
 		.extra1		= &zero,
 	},
 	{
-		.ctl_name	= INOTIFY_MAX_QUEUED_EVENTS,
 		.procname	= "max_queued_events",
 		.data		= &inotify_max_queued_events,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_minmax,
-		.strategy	= &sysctl_intvec,
+		.proc_handler	= proc_dointvec_minmax,
 		.extra1		= &zero
 	},
-	{ .ctl_name = 0 }
+	{ }
 };
 #endif /* CONFIG_SYSCTL */
 
diff --git a/fs/ntfs/sysctl.c b/fs/ntfs/sysctl.c
index 9ef85e628fe..79a89184cb5 100644
--- a/fs/ntfs/sysctl.c
+++ b/fs/ntfs/sysctl.c
@@ -36,12 +36,11 @@
 /* Definition of the ntfs sysctl. */
 static ctl_table ntfs_sysctls[] = {
 	{
-		.ctl_name	= CTL_UNNUMBERED,	/* Binary and text IDs. */
 		.procname	= "ntfs-debug",
 		.data		= &debug_msgs,		/* Data pointer and size. */
 		.maxlen		= sizeof(debug_msgs),
 		.mode		= 0644,			/* Mode, proc handler. */
-		.proc_handler	= &proc_dointvec
+		.proc_handler	= proc_dointvec
 	},
 	{}
 };
@@ -49,7 +48,6 @@ static ctl_table ntfs_sysctls[] = {
 /* Define the parent directory /proc/sys/fs. */
 static ctl_table sysctls_root[] = {
 	{
-		.ctl_name	= CTL_FS,
 		.procname	= "fs",
 		.mode		= 0555,
 		.child		= ntfs_sysctls
diff --git a/fs/ocfs2/cluster/netdebug.c b/fs/ocfs2/cluster/netdebug.c
index da794bc07a6..a3f150e52b0 100644
--- a/fs/ocfs2/cluster/netdebug.c
+++ b/fs/ocfs2/cluster/netdebug.c
@@ -294,10 +294,10 @@ static int sc_seq_show(struct seq_file *seq, void *v)
 		if (sc->sc_sock) {
 			inet = inet_sk(sc->sc_sock->sk);
 			/* the stack's structs aren't sparse endian clean */
-			saddr = (__force __be32)inet->saddr;
-			daddr = (__force __be32)inet->daddr;
-			sport = (__force __be16)inet->sport;
-			dport = (__force __be16)inet->dport;
+			saddr = (__force __be32)inet->inet_saddr;
+			daddr = (__force __be32)inet->inet_daddr;
+			sport = (__force __be16)inet->inet_sport;
+			dport = (__force __be16)inet->inet_dport;
 		}
 
 		/* XXX sigh, inet-> doesn't have sparse annotation so any
diff --git a/fs/ocfs2/stackglue.c b/fs/ocfs2/stackglue.c
index 3f2f1c45b7b..f3df0baa9a4 100644
--- a/fs/ocfs2/stackglue.c
+++ b/fs/ocfs2/stackglue.c
@@ -620,51 +620,46 @@ error:
 
 static ctl_table ocfs2_nm_table[] = {
 	{
-		.ctl_name	= 1,
 		.procname	= "hb_ctl_path",
 		.data		= ocfs2_hb_ctl_path,
 		.maxlen		= OCFS2_MAX_HB_CTL_PATH,
 		.mode		= 0644,
-		.proc_handler	= &proc_dostring,
-		.strategy	= &sysctl_string,
+		.proc_handler	= proc_dostring,
 	},
-	{ .ctl_name = 0 }
+	{ }
 };
 
 static ctl_table ocfs2_mod_table[] = {
 	{
-		.ctl_name	= FS_OCFS2_NM,
 		.procname	= "nm",
 		.data		= NULL,
 		.maxlen		= 0,
 		.mode		= 0555,
 		.child		= ocfs2_nm_table
 	},
-	{ .ctl_name = 0}
+	{ }
 };
 
 static ctl_table ocfs2_kern_table[] = {
 	{
-		.ctl_name	= FS_OCFS2,
 		.procname	= "ocfs2",
 		.data		= NULL,
 		.maxlen		= 0,
 		.mode		= 0555,
 		.child		= ocfs2_mod_table
 	},
-	{ .ctl_name = 0}
+	{ }
 };
 
 static ctl_table ocfs2_root_table[] = {
 	{
-		.ctl_name	= CTL_FS,
 		.procname	= "fs",
 		.data		= NULL,
 		.maxlen		= 0,
 		.mode		= 0555,
 		.child		= ocfs2_kern_table
 	},
-	{ .ctl_name = 0 }
+	{ }
 };
 
 static struct ctl_table_header *ocfs2_table_header = NULL;
diff --git a/fs/open.c b/fs/open.c
index 4f01e06227c..b4b31d277f3 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -587,6 +587,9 @@ SYSCALL_DEFINE1(chroot, const char __user *, filename)
 	error = -EPERM;
 	if (!capable(CAP_SYS_CHROOT))
 		goto dput_and_out;
+	error = security_path_chroot(&path);
+	if (error)
+		goto dput_and_out;
 
 	set_fs_root(current->fs, &path);
 	error = 0;
@@ -617,11 +620,15 @@ SYSCALL_DEFINE2(fchmod, unsigned int, fd, mode_t, mode)
 	if (err)
 		goto out_putf;
 	mutex_lock(&inode->i_mutex);
+	err = security_path_chmod(dentry, file->f_vfsmnt, mode);
+	if (err)
+		goto out_unlock;
 	if (mode == (mode_t) -1)
 		mode = inode->i_mode;
 	newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO);
 	newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
 	err = notify_change(dentry, &newattrs);
+out_unlock:
 	mutex_unlock(&inode->i_mutex);
 	mnt_drop_write(file->f_path.mnt);
 out_putf:
@@ -646,11 +653,15 @@ SYSCALL_DEFINE3(fchmodat, int, dfd, const char __user *, filename, mode_t, mode)
 	if (error)
 		goto dput_and_out;
 	mutex_lock(&inode->i_mutex);
+	error = security_path_chmod(path.dentry, path.mnt, mode);
+	if (error)
+		goto out_unlock;
 	if (mode == (mode_t) -1)
 		mode = inode->i_mode;
 	newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO);
 	newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
 	error = notify_change(path.dentry, &newattrs);
+out_unlock:
 	mutex_unlock(&inode->i_mutex);
 	mnt_drop_write(path.mnt);
 dput_and_out:
@@ -664,9 +675,9 @@ SYSCALL_DEFINE2(chmod, const char __user *, filename, mode_t, mode)
 	return sys_fchmodat(AT_FDCWD, filename, mode);
 }
 
-static int chown_common(struct dentry * dentry, uid_t user, gid_t group)
+static int chown_common(struct path *path, uid_t user, gid_t group)
 {
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = path->dentry->d_inode;
 	int error;
 	struct iattr newattrs;
 
@@ -683,7 +694,9 @@ static int chown_common(struct dentry * dentry, uid_t user, gid_t group)
 		newattrs.ia_valid |=
 			ATTR_KILL_SUID | ATTR_KILL_SGID | ATTR_KILL_PRIV;
 	mutex_lock(&inode->i_mutex);
-	error = notify_change(dentry, &newattrs);
+	error = security_path_chown(path, user, group);
+	if (!error)
+		error = notify_change(path->dentry, &newattrs);
 	mutex_unlock(&inode->i_mutex);
 
 	return error;
@@ -700,7 +713,7 @@ SYSCALL_DEFINE3(chown, const char __user *, filename, uid_t, user, gid_t, group)
 	error = mnt_want_write(path.mnt);
 	if (error)
 		goto out_release;
-	error = chown_common(path.dentry, user, group);
+	error = chown_common(&path, user, group);
 	mnt_drop_write(path.mnt);
 out_release:
 	path_put(&path);
@@ -725,7 +738,7 @@ SYSCALL_DEFINE5(fchownat, int, dfd, const char __user *, filename, uid_t, user,
 	error = mnt_want_write(path.mnt);
 	if (error)
 		goto out_release;
-	error = chown_common(path.dentry, user, group);
+	error = chown_common(&path, user, group);
 	mnt_drop_write(path.mnt);
 out_release:
 	path_put(&path);
@@ -744,7 +757,7 @@ SYSCALL_DEFINE3(lchown, const char __user *, filename, uid_t, user, gid_t, group
 	error = mnt_want_write(path.mnt);
 	if (error)
 		goto out_release;
-	error = chown_common(path.dentry, user, group);
+	error = chown_common(&path, user, group);
 	mnt_drop_write(path.mnt);
 out_release:
 	path_put(&path);
@@ -767,7 +780,7 @@ SYSCALL_DEFINE3(fchown, unsigned int, fd, uid_t, user, gid_t, group)
 		goto out_fput;
 	dentry = file->f_path.dentry;
 	audit_inode(NULL, dentry);
-	error = chown_common(dentry, user, group);
+	error = chown_common(&file->f_path, user, group);
 	mnt_drop_write(file->f_path.mnt);
 out_fput:
 	fput(file);
diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index 7b685e10cba..64bc8998ac9 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -226,6 +226,13 @@ ssize_t part_alignment_offset_show(struct device *dev,
 	return sprintf(buf, "%llu\n", (unsigned long long)p->alignment_offset);
 }
 
+ssize_t part_discard_alignment_show(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	struct hd_struct *p = dev_to_part(dev);
+	return sprintf(buf, "%u\n", p->discard_alignment);
+}
+
 ssize_t part_stat_show(struct device *dev,
 		       struct device_attribute *attr, char *buf)
 {
@@ -288,6 +295,8 @@ static DEVICE_ATTR(partition, S_IRUGO, part_partition_show, NULL);
 static DEVICE_ATTR(start, S_IRUGO, part_start_show, NULL);
 static DEVICE_ATTR(size, S_IRUGO, part_size_show, NULL);
 static DEVICE_ATTR(alignment_offset, S_IRUGO, part_alignment_offset_show, NULL);
+static DEVICE_ATTR(discard_alignment, S_IRUGO, part_discard_alignment_show,
+		   NULL);
 static DEVICE_ATTR(stat, S_IRUGO, part_stat_show, NULL);
 static DEVICE_ATTR(inflight, S_IRUGO, part_inflight_show, NULL);
 #ifdef CONFIG_FAIL_MAKE_REQUEST
@@ -300,6 +309,7 @@ static struct attribute *part_attrs[] = {
 	&dev_attr_start.attr,
 	&dev_attr_size.attr,
 	&dev_attr_alignment_offset.attr,
+	&dev_attr_discard_alignment.attr,
 	&dev_attr_stat.attr,
 	&dev_attr_inflight.attr,
 #ifdef CONFIG_FAIL_MAKE_REQUEST
@@ -403,6 +413,8 @@ struct hd_struct *add_partition(struct gendisk *disk, int partno,
 
 	p->start_sect = start;
 	p->alignment_offset = queue_sector_alignment_offset(disk->queue, start);
+	p->discard_alignment = queue_sector_discard_alignment(disk->queue,
+							      start);
 	p->nr_sects = len;
 	p->partno = partno;
 	p->policy = get_disk_ro(disk);
diff --git a/fs/partitions/efi.c b/fs/partitions/efi.c
index 038a6022152..49cfd5f5423 100644
--- a/fs/partitions/efi.c
+++ b/fs/partitions/efi.c
@@ -1,7 +1,9 @@
 /************************************************************
  * EFI GUID Partition Table handling
- * Per Intel EFI Specification v1.02
- * http://developer.intel.com/technology/efi/efi.htm
+ *
+ * http://www.uefi.org/specs/
+ * http://www.intel.com/technology/efi/
+ *
  * efi.[ch] by Matt Domsch <Matt_Domsch@dell.com>
  *   Copyright 2000,2001,2002,2004 Dell Inc.
  *
@@ -92,6 +94,7 @@
  *
  ************************************************************/
 #include <linux/crc32.h>
+#include <linux/math64.h>
 #include "check.h"
 #include "efi.h"
 
@@ -141,7 +144,8 @@ last_lba(struct block_device *bdev)
 {
 	if (!bdev || !bdev->bd_inode)
 		return 0;
-	return (bdev->bd_inode->i_size >> 9) - 1ULL;
+	return div_u64(bdev->bd_inode->i_size,
+		       bdev_logical_block_size(bdev)) - 1ULL;
 }
 
 static inline int
@@ -188,6 +192,7 @@ static size_t
 read_lba(struct block_device *bdev, u64 lba, u8 * buffer, size_t count)
 {
 	size_t totalreadcount = 0;
+	sector_t n = lba * (bdev_logical_block_size(bdev) / 512);
 
 	if (!bdev || !buffer || lba > last_lba(bdev))
                 return 0;
@@ -195,7 +200,7 @@ read_lba(struct block_device *bdev, u64 lba, u8 * buffer, size_t count)
 	while (count) {
 		int copied = 512;
 		Sector sect;
-		unsigned char *data = read_dev_sector(bdev, lba++, &sect);
+		unsigned char *data = read_dev_sector(bdev, n++, &sect);
 		if (!data)
 			break;
 		if (copied > count)
@@ -257,15 +262,16 @@ static gpt_header *
 alloc_read_gpt_header(struct block_device *bdev, u64 lba)
 {
 	gpt_header *gpt;
+	unsigned ssz = bdev_logical_block_size(bdev);
+
 	if (!bdev)
 		return NULL;
 
-	gpt = kzalloc(sizeof (gpt_header), GFP_KERNEL);
+	gpt = kzalloc(ssz, GFP_KERNEL);
 	if (!gpt)
 		return NULL;
 
-	if (read_lba(bdev, lba, (u8 *) gpt,
-		     sizeof (gpt_header)) < sizeof (gpt_header)) {
+	if (read_lba(bdev, lba, (u8 *) gpt, ssz) < ssz) {
 		kfree(gpt);
                 gpt=NULL;
 		return NULL;
@@ -601,6 +607,7 @@ efi_partition(struct parsed_partitions *state, struct block_device *bdev)
 	gpt_header *gpt = NULL;
 	gpt_entry *ptes = NULL;
 	u32 i;
+	unsigned ssz = bdev_logical_block_size(bdev) / 512;
 
 	if (!find_valid_gpt(bdev, &gpt, &ptes) || !gpt || !ptes) {
 		kfree(gpt);
@@ -611,13 +618,14 @@ efi_partition(struct parsed_partitions *state, struct block_device *bdev)
 	pr_debug("GUID Partition Table is valid!  Yea!\n");
 
 	for (i = 0; i < le32_to_cpu(gpt->num_partition_entries) && i < state->limit-1; i++) {
+		u64 start = le64_to_cpu(ptes[i].starting_lba);
+		u64 size = le64_to_cpu(ptes[i].ending_lba) -
+			   le64_to_cpu(ptes[i].starting_lba) + 1ULL;
+
 		if (!is_pte_valid(&ptes[i], last_lba(bdev)))
 			continue;
 
-		put_partition(state, i+1, le64_to_cpu(ptes[i].starting_lba),
-				 (le64_to_cpu(ptes[i].ending_lba) -
-                                  le64_to_cpu(ptes[i].starting_lba) +
-				  1ULL));
+		put_partition(state, i+1, start * ssz, size * ssz);
 
 		/* If this is a RAID volume, tell md */
 		if (!efi_guidcmp(ptes[i].partition_type_guid,
diff --git a/fs/partitions/efi.h b/fs/partitions/efi.h
index 2cc89d0475b..6998b589abf 100644
--- a/fs/partitions/efi.h
+++ b/fs/partitions/efi.h
@@ -37,7 +37,6 @@
 #define EFI_PMBR_OSTYPE_EFI 0xEF
 #define EFI_PMBR_OSTYPE_EFI_GPT 0xEE
 
-#define GPT_BLOCK_SIZE 512
 #define GPT_HEADER_SIGNATURE 0x5452415020494645ULL
 #define GPT_HEADER_REVISION_V1 0x00010000
 #define GPT_PRIMARY_PARTITION_TABLE_LBA 1
@@ -79,7 +78,12 @@ typedef struct _gpt_header {
 	__le32 num_partition_entries;
 	__le32 sizeof_partition_entry;
 	__le32 partition_entry_array_crc32;
-	u8 reserved2[GPT_BLOCK_SIZE - 92];
+
+	/* The rest of the logical block is reserved by UEFI and must be zero.
+	 * EFI standard handles this by:
+	 *
+	 * uint8_t		reserved2[ BlockSize - 92 ];
+	 */
 } __attribute__ ((packed)) gpt_header;
 
 typedef struct _gpt_entry_attributes {
diff --git a/fs/proc/array.c b/fs/proc/array.c
index 822c2d50651..4badde179b1 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -410,6 +410,16 @@ static void task_show_stack_usage(struct seq_file *m, struct task_struct *task)
 }
 #endif		/* CONFIG_MMU */
 
+static void task_cpus_allowed(struct seq_file *m, struct task_struct *task)
+{
+	seq_printf(m, "Cpus_allowed:\t");
+	seq_cpumask(m, &task->cpus_allowed);
+	seq_printf(m, "\n");
+	seq_printf(m, "Cpus_allowed_list:\t");
+	seq_cpumask_list(m, &task->cpus_allowed);
+	seq_printf(m, "\n");
+}
+
 int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
 			struct pid *pid, struct task_struct *task)
 {
@@ -424,6 +434,7 @@ int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
 	}
 	task_sig(m, task);
 	task_cap(m, task);
+	task_cpus_allowed(m, task);
 	cpuset_task_status_allowed(m, task);
 #if defined(CONFIG_S390)
 	task_show_regs(m, task);
@@ -495,20 +506,17 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
 
 		/* add up live thread stats at the group level */
 		if (whole) {
-			struct task_cputime cputime;
 			struct task_struct *t = task;
 			do {
 				min_flt += t->min_flt;
 				maj_flt += t->maj_flt;
-				gtime = cputime_add(gtime, task_gtime(t));
+				gtime = cputime_add(gtime, t->gtime);
 				t = next_thread(t);
 			} while (t != task);
 
 			min_flt += sig->min_flt;
 			maj_flt += sig->maj_flt;
-			thread_group_cputime(task, &cputime);
-			utime = cputime.utime;
-			stime = cputime.stime;
+			thread_group_times(task, &utime, &stime);
 			gtime = cputime_add(gtime, sig->gtime);
 		}
 
@@ -524,9 +532,8 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
 	if (!whole) {
 		min_flt = task->min_flt;
 		maj_flt = task->maj_flt;
-		utime = task_utime(task);
-		stime = task_stime(task);
-		gtime = task_gtime(task);
+		task_times(task, &utime, &stime);
+		gtime = task->gtime;
 	}
 
 	/* scale priority and nice values from timeslices to -20..20 */
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index f667e8aeabd..6ff9981f0a1 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -48,7 +48,7 @@ out:
 static struct ctl_table *find_in_table(struct ctl_table *p, struct qstr *name)
 {
 	int len;
-	for ( ; p->ctl_name || p->procname; p++) {
+	for ( ; p->procname; p++) {
 
 		if (!p->procname)
 			continue;
@@ -218,7 +218,7 @@ static int scan(struct ctl_table_header *head, ctl_table *table,
 		void *dirent, filldir_t filldir)
 {
 
-	for (; table->ctl_name || table->procname; table++, (*pos)++) {
+	for (; table->procname; table++, (*pos)++) {
 		int res;
 
 		/* Can't do anything without a proc name */
diff --git a/fs/proc/stat.c b/fs/proc/stat.c
index 7cc726c6d70..b9b7aad2003 100644
--- a/fs/proc/stat.c
+++ b/fs/proc/stat.c
@@ -27,7 +27,7 @@ static int show_stat(struct seq_file *p, void *v)
 	int i, j;
 	unsigned long jif;
 	cputime64_t user, nice, system, idle, iowait, irq, softirq, steal;
-	cputime64_t guest;
+	cputime64_t guest, guest_nice;
 	u64 sum = 0;
 	u64 sum_softirq = 0;
 	unsigned int per_softirq_sums[NR_SOFTIRQS] = {0};
@@ -36,7 +36,7 @@ static int show_stat(struct seq_file *p, void *v)
 
 	user = nice = system = idle = iowait =
 		irq = softirq = steal = cputime64_zero;
-	guest = cputime64_zero;
+	guest = guest_nice = cputime64_zero;
 	getboottime(&boottime);
 	jif = boottime.tv_sec;
 
@@ -51,6 +51,8 @@ static int show_stat(struct seq_file *p, void *v)
 		softirq = cputime64_add(softirq, kstat_cpu(i).cpustat.softirq);
 		steal = cputime64_add(steal, kstat_cpu(i).cpustat.steal);
 		guest = cputime64_add(guest, kstat_cpu(i).cpustat.guest);
+		guest_nice = cputime64_add(guest_nice,
+			kstat_cpu(i).cpustat.guest_nice);
 		for_each_irq_nr(j) {
 			sum += kstat_irqs_cpu(j, i);
 		}
@@ -65,7 +67,8 @@ static int show_stat(struct seq_file *p, void *v)
 	}
 	sum += arch_irq_stat();
 
-	seq_printf(p, "cpu  %llu %llu %llu %llu %llu %llu %llu %llu %llu\n",
+	seq_printf(p, "cpu  %llu %llu %llu %llu %llu %llu %llu %llu %llu "
+		"%llu\n",
 		(unsigned long long)cputime64_to_clock_t(user),
 		(unsigned long long)cputime64_to_clock_t(nice),
 		(unsigned long long)cputime64_to_clock_t(system),
@@ -74,7 +77,8 @@ static int show_stat(struct seq_file *p, void *v)
 		(unsigned long long)cputime64_to_clock_t(irq),
 		(unsigned long long)cputime64_to_clock_t(softirq),
 		(unsigned long long)cputime64_to_clock_t(steal),
-		(unsigned long long)cputime64_to_clock_t(guest));
+		(unsigned long long)cputime64_to_clock_t(guest),
+		(unsigned long long)cputime64_to_clock_t(guest_nice));
 	for_each_online_cpu(i) {
 
 		/* Copy values here to work around gcc-2.95.3, gcc-2.96 */
@@ -88,8 +92,10 @@ static int show_stat(struct seq_file *p, void *v)
 		softirq = kstat_cpu(i).cpustat.softirq;
 		steal = kstat_cpu(i).cpustat.steal;
 		guest = kstat_cpu(i).cpustat.guest;
+		guest_nice = kstat_cpu(i).cpustat.guest_nice;
 		seq_printf(p,
-			"cpu%d %llu %llu %llu %llu %llu %llu %llu %llu %llu\n",
+			"cpu%d %llu %llu %llu %llu %llu %llu %llu %llu %llu "
+			"%llu\n",
 			i,
 			(unsigned long long)cputime64_to_clock_t(user),
 			(unsigned long long)cputime64_to_clock_t(nice),
@@ -99,7 +105,8 @@ static int show_stat(struct seq_file *p, void *v)
 			(unsigned long long)cputime64_to_clock_t(irq),
 			(unsigned long long)cputime64_to_clock_t(softirq),
 			(unsigned long long)cputime64_to_clock_t(steal),
-			(unsigned long long)cputime64_to_clock_t(guest));
+			(unsigned long long)cputime64_to_clock_t(guest),
+			(unsigned long long)cputime64_to_clock_t(guest_nice));
 	}
 	seq_printf(p, "intr %llu", (unsigned long long)sum);
 
diff --git a/fs/quota/Kconfig b/fs/quota/Kconfig
index 8047e01ef46..353e78a9ebe 100644
--- a/fs/quota/Kconfig
+++ b/fs/quota/Kconfig
@@ -17,7 +17,7 @@ config QUOTA
 
 config QUOTA_NETLINK_INTERFACE
 	bool "Report quota messages through netlink interface"
-	depends on QUOTA && NET
+	depends on QUOTACTL && NET
 	help
 	  If you say Y here, quota warnings (about exceeding softlimit, reaching
 	  hardlimit, etc.) will be reported through netlink interface. If unsure,
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 39b49c42a7e..eb5a755718f 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -77,10 +77,6 @@
 #include <linux/capability.h>
 #include <linux/quotaops.h>
 #include <linux/writeback.h> /* for inode_lock, oddly enough.. */
-#ifdef CONFIG_QUOTA_NETLINK_INTERFACE
-#include <net/netlink.h>
-#include <net/genetlink.h>
-#endif
 
 #include <asm/uaccess.h>
 
@@ -1071,73 +1067,6 @@ static void print_warning(struct dquot *dquot, const int warntype)
 }
 #endif
 
-#ifdef CONFIG_QUOTA_NETLINK_INTERFACE
-
-/* Netlink family structure for quota */
-static struct genl_family quota_genl_family = {
-	.id = GENL_ID_GENERATE,
-	.hdrsize = 0,
-	.name = "VFS_DQUOT",
-	.version = 1,
-	.maxattr = QUOTA_NL_A_MAX,
-};
-
-/* Send warning to userspace about user which exceeded quota */
-static void send_warning(const struct dquot *dquot, const char warntype)
-{
-	static atomic_t seq;
-	struct sk_buff *skb;
-	void *msg_head;
-	int ret;
-	int msg_size = 4 * nla_total_size(sizeof(u32)) +
-		       2 * nla_total_size(sizeof(u64));
-
-	/* We have to allocate using GFP_NOFS as we are called from a
-	 * filesystem performing write and thus further recursion into
-	 * the fs to free some data could cause deadlocks. */
-	skb = genlmsg_new(msg_size, GFP_NOFS);
-	if (!skb) {
-		printk(KERN_ERR
-		  "VFS: Not enough memory to send quota warning.\n");
-		return;
-	}
-	msg_head = genlmsg_put(skb, 0, atomic_add_return(1, &seq),
-			&quota_genl_family, 0, QUOTA_NL_C_WARNING);
-	if (!msg_head) {
-		printk(KERN_ERR
-		  "VFS: Cannot store netlink header in quota warning.\n");
-		goto err_out;
-	}
-	ret = nla_put_u32(skb, QUOTA_NL_A_QTYPE, dquot->dq_type);
-	if (ret)
-		goto attr_err_out;
-	ret = nla_put_u64(skb, QUOTA_NL_A_EXCESS_ID, dquot->dq_id);
-	if (ret)
-		goto attr_err_out;
-	ret = nla_put_u32(skb, QUOTA_NL_A_WARNING, warntype);
-	if (ret)
-		goto attr_err_out;
-	ret = nla_put_u32(skb, QUOTA_NL_A_DEV_MAJOR,
-		MAJOR(dquot->dq_sb->s_dev));
-	if (ret)
-		goto attr_err_out;
-	ret = nla_put_u32(skb, QUOTA_NL_A_DEV_MINOR,
-		MINOR(dquot->dq_sb->s_dev));
-	if (ret)
-		goto attr_err_out;
-	ret = nla_put_u64(skb, QUOTA_NL_A_CAUSED_ID, current_uid());
-	if (ret)
-		goto attr_err_out;
-	genlmsg_end(skb, msg_head);
-
-	genlmsg_multicast(skb, 0, quota_genl_family.id, GFP_NOFS);
-	return;
-attr_err_out:
-	printk(KERN_ERR "VFS: Not enough space to compose quota message!\n");
-err_out:
-	kfree_skb(skb);
-}
-#endif
 /*
  * Write warnings to the console and send warning messages over netlink.
  *
@@ -1145,18 +1074,20 @@ err_out:
  */
 static void flush_warnings(struct dquot *const *dquots, char *warntype)
 {
+	struct dquot *dq;
 	int i;
 
-	for (i = 0; i < MAXQUOTAS; i++)
-		if (dquots[i] && warntype[i] != QUOTA_NL_NOWARN &&
-		    !warning_issued(dquots[i], warntype[i])) {
+	for (i = 0; i < MAXQUOTAS; i++) {
+		dq = dquots[i];
+		if (dq && warntype[i] != QUOTA_NL_NOWARN &&
+		    !warning_issued(dq, warntype[i])) {
 #ifdef CONFIG_PRINT_QUOTA_WARNING
-			print_warning(dquots[i], warntype[i]);
-#endif
-#ifdef CONFIG_QUOTA_NETLINK_INTERFACE
-			send_warning(dquots[i], warntype[i]);
+			print_warning(dq, warntype[i]);
 #endif
+			quota_send_warning(dq->dq_type, dq->dq_id,
+					   dq->dq_sb->s_dev, warntype[i]);
 		}
+	}
 }
 
 static int ignore_hardlimit(struct dquot *dquot)
@@ -2473,100 +2404,89 @@ const struct quotactl_ops vfs_quotactl_ops = {
 
 static ctl_table fs_dqstats_table[] = {
 	{
-		.ctl_name	= FS_DQ_LOOKUPS,
 		.procname	= "lookups",
 		.data		= &dqstats.lookups,
 		.maxlen		= sizeof(int),
 		.mode		= 0444,
-		.proc_handler	= &proc_dointvec,
+		.proc_handler	= proc_dointvec,
 	},
 	{
-		.ctl_name	= FS_DQ_DROPS,
 		.procname	= "drops",
 		.data		= &dqstats.drops,
 		.maxlen		= sizeof(int),
 		.mode		= 0444,
-		.proc_handler	= &proc_dointvec,
+		.proc_handler	= proc_dointvec,
 	},
 	{
-		.ctl_name	= FS_DQ_READS,
 		.procname	= "reads",
 		.data		= &dqstats.reads,
 		.maxlen		= sizeof(int),
 		.mode		= 0444,
-		.proc_handler	= &proc_dointvec,
+		.proc_handler	= proc_dointvec,
 	},
 	{
-		.ctl_name	= FS_DQ_WRITES,
 		.procname	= "writes",
 		.data		= &dqstats.writes,
 		.maxlen		= sizeof(int),
 		.mode		= 0444,
-		.proc_handler	= &proc_dointvec,
+		.proc_handler	= proc_dointvec,
 	},
 	{
-		.ctl_name	= FS_DQ_CACHE_HITS,
 		.procname	= "cache_hits",
 		.data		= &dqstats.cache_hits,
 		.maxlen		= sizeof(int),
 		.mode		= 0444,
-		.proc_handler	= &proc_dointvec,
+		.proc_handler	= proc_dointvec,
 	},
 	{
-		.ctl_name	= FS_DQ_ALLOCATED,
 		.procname	= "allocated_dquots",
 		.data		= &dqstats.allocated_dquots,
 		.maxlen		= sizeof(int),
 		.mode		= 0444,
-		.proc_handler	= &proc_dointvec,
+		.proc_handler	= proc_dointvec,
 	},
 	{
-		.ctl_name	= FS_DQ_FREE,
 		.procname	= "free_dquots",
 		.data		= &dqstats.free_dquots,
 		.maxlen		= sizeof(int),
 		.mode		= 0444,
-		.proc_handler	= &proc_dointvec,
+		.proc_handler	= proc_dointvec,
 	},
 	{
-		.ctl_name	= FS_DQ_SYNCS,
 		.procname	= "syncs",
 		.data		= &dqstats.syncs,
 		.maxlen		= sizeof(int),
 		.mode		= 0444,
-		.proc_handler	= &proc_dointvec,
+		.proc_handler	= proc_dointvec,
 	},
 #ifdef CONFIG_PRINT_QUOTA_WARNING
 	{
-		.ctl_name	= FS_DQ_WARNINGS,
 		.procname	= "warnings",
 		.data		= &flag_print_warnings,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec,
+		.proc_handler	= proc_dointvec,
 	},
 #endif
-	{ .ctl_name = 0 },
+	{ },
 };
 
 static ctl_table fs_table[] = {
 	{
-		.ctl_name	= FS_DQSTATS,
 		.procname	= "quota",
 		.mode		= 0555,
 		.child		= fs_dqstats_table,
 	},
-	{ .ctl_name = 0 },
+	{ },
 };
 
 static ctl_table sys_table[] = {
 	{
-		.ctl_name	= CTL_FS,
 		.procname	= "fs",
 		.mode		= 0555,
 		.child		= fs_table,
 	},
-	{ .ctl_name = 0 },
+	{ },
 };
 
 static int __init dquot_init(void)
@@ -2607,12 +2527,6 @@ static int __init dquot_init(void)
 
 	register_shrinker(&dqcache_shrinker);
 
-#ifdef CONFIG_QUOTA_NETLINK_INTERFACE
-	if (genl_register_family(&quota_genl_family) != 0)
-		printk(KERN_ERR
-		       "VFS: Failed to create quota netlink interface.\n");
-#endif
-
 	return 0;
 }
 module_init(dquot_init);
diff --git a/fs/quota/quota.c b/fs/quota/quota.c
index 95c5b42384b..ee91e275695 100644
--- a/fs/quota/quota.c
+++ b/fs/quota/quota.c
@@ -18,6 +18,8 @@
 #include <linux/capability.h>
 #include <linux/quotaops.h>
 #include <linux/types.h>
+#include <net/netlink.h>
+#include <net/genetlink.h>
 
 /* Check validity of generic quotactl commands */
 static int generic_quotactl_valid(struct super_block *sb, int type, int cmd,
@@ -525,3 +527,94 @@ asmlinkage long sys32_quotactl(unsigned int cmd, const char __user *special,
 	return ret;
 }
 #endif
+
+
+#ifdef CONFIG_QUOTA_NETLINK_INTERFACE
+
+/* Netlink family structure for quota */
+static struct genl_family quota_genl_family = {
+	.id = GENL_ID_GENERATE,
+	.hdrsize = 0,
+	.name = "VFS_DQUOT",
+	.version = 1,
+	.maxattr = QUOTA_NL_A_MAX,
+};
+
+/**
+ * quota_send_warning - Send warning to userspace about exceeded quota
+ * @type: The quota type: USRQQUOTA, GRPQUOTA,...
+ * @id: The user or group id of the quota that was exceeded
+ * @dev: The device on which the fs is mounted (sb->s_dev)
+ * @warntype: The type of the warning: QUOTA_NL_...
+ *
+ * This can be used by filesystems (including those which don't use
+ * dquot) to send a message to userspace relating to quota limits.
+ *
+ */
+
+void quota_send_warning(short type, unsigned int id, dev_t dev,
+			const char warntype)
+{
+	static atomic_t seq;
+	struct sk_buff *skb;
+	void *msg_head;
+	int ret;
+	int msg_size = 4 * nla_total_size(sizeof(u32)) +
+		       2 * nla_total_size(sizeof(u64));
+
+	/* We have to allocate using GFP_NOFS as we are called from a
+	 * filesystem performing write and thus further recursion into
+	 * the fs to free some data could cause deadlocks. */
+	skb = genlmsg_new(msg_size, GFP_NOFS);
+	if (!skb) {
+		printk(KERN_ERR
+		  "VFS: Not enough memory to send quota warning.\n");
+		return;
+	}
+	msg_head = genlmsg_put(skb, 0, atomic_add_return(1, &seq),
+			&quota_genl_family, 0, QUOTA_NL_C_WARNING);
+	if (!msg_head) {
+		printk(KERN_ERR
+		  "VFS: Cannot store netlink header in quota warning.\n");
+		goto err_out;
+	}
+	ret = nla_put_u32(skb, QUOTA_NL_A_QTYPE, type);
+	if (ret)
+		goto attr_err_out;
+	ret = nla_put_u64(skb, QUOTA_NL_A_EXCESS_ID, id);
+	if (ret)
+		goto attr_err_out;
+	ret = nla_put_u32(skb, QUOTA_NL_A_WARNING, warntype);
+	if (ret)
+		goto attr_err_out;
+	ret = nla_put_u32(skb, QUOTA_NL_A_DEV_MAJOR, MAJOR(dev));
+	if (ret)
+		goto attr_err_out;
+	ret = nla_put_u32(skb, QUOTA_NL_A_DEV_MINOR, MINOR(dev));
+	if (ret)
+		goto attr_err_out;
+	ret = nla_put_u64(skb, QUOTA_NL_A_CAUSED_ID, current_uid());
+	if (ret)
+		goto attr_err_out;
+	genlmsg_end(skb, msg_head);
+
+	genlmsg_multicast(skb, 0, quota_genl_family.id, GFP_NOFS);
+	return;
+attr_err_out:
+	printk(KERN_ERR "VFS: Not enough space to compose quota message!\n");
+err_out:
+	kfree_skb(skb);
+}
+EXPORT_SYMBOL(quota_send_warning);
+
+static int __init quota_init(void)
+{
+	if (genl_register_family(&quota_genl_family) != 0)
+		printk(KERN_ERR
+		       "VFS: Failed to create quota netlink interface.\n");
+	return 0;
+};
+
+module_init(quota_init);
+#endif
+
diff --git a/fs/read_write.c b/fs/read_write.c
index 3ac28987f22..b7f4a1f94d4 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -826,8 +826,6 @@ static ssize_t do_sendfile(int out_fd, int in_fd, loff_t *ppos,
 	if (!(out_file->f_mode & FMODE_WRITE))
 		goto fput_out;
 	retval = -EINVAL;
-	if (!out_file->f_op || !out_file->f_op->sendpage)
-		goto fput_out;
 	in_inode = in_file->f_path.dentry->d_inode;
 	out_inode = out_file->f_path.dentry->d_inode;
 	retval = rw_verify_area(WRITE, out_file, &out_file->f_pos, count);
diff --git a/fs/splice.c b/fs/splice.c
index 7394e9e1753..39208663aaf 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -648,9 +648,11 @@ static int pipe_to_sendpage(struct pipe_inode_info *pipe,
 	ret = buf->ops->confirm(pipe, buf);
 	if (!ret) {
 		more = (sd->flags & SPLICE_F_MORE) || sd->len < sd->total_len;
-
-		ret = file->f_op->sendpage(file, buf->page, buf->offset,
-					   sd->len, &pos, more);
+		if (file->f_op && file->f_op->sendpage)
+			ret = file->f_op->sendpage(file, buf->page, buf->offset,
+						   sd->len, &pos, more);
+		else
+			ret = -EINVAL;
 	}
 
 	return ret;
@@ -1068,8 +1070,9 @@ static long do_splice_from(struct pipe_inode_info *pipe, struct file *out,
 	if (unlikely(ret < 0))
 		return ret;
 
-	splice_write = out->f_op->splice_write;
-	if (!splice_write)
+	if (out->f_op && out->f_op->splice_write)
+		splice_write = out->f_op->splice_write;
+	else
 		splice_write = default_file_splice_write;
 
 	return splice_write(pipe, out, ppos, len, flags);
@@ -1093,8 +1096,9 @@ static long do_splice_to(struct file *in, loff_t *ppos,
 	if (unlikely(ret < 0))
 		return ret;
 
-	splice_read = in->f_op->splice_read;
-	if (!splice_read)
+	if (in->f_op && in->f_op->splice_read)
+		splice_read = in->f_op->splice_read;
+	else
 		splice_read = default_file_splice_read;
 
 	return splice_read(in, ppos, pipe, len, flags);
@@ -1316,7 +1320,8 @@ static long do_splice(struct file *in, loff_t __user *off_in,
 		if (off_in)
 			return -ESPIPE;
 		if (off_out) {
-			if (out->f_op->llseek == no_llseek)
+			if (!out->f_op || !out->f_op->llseek ||
+			    out->f_op->llseek == no_llseek)
 				return -EINVAL;
 			if (copy_from_user(&offset, off_out, sizeof(loff_t)))
 				return -EFAULT;
@@ -1336,7 +1341,8 @@ static long do_splice(struct file *in, loff_t __user *off_in,
 		if (off_out)
 			return -ESPIPE;
 		if (off_in) {
-			if (in->f_op->llseek == no_llseek)
+			if (!in->f_op || !in->f_op->llseek ||
+			    in->f_op->llseek == no_llseek)
 				return -EINVAL;
 			if (copy_from_user(&offset, off_in, sizeof(loff_t)))
 				return -EFAULT;
diff --git a/fs/xattr_acl.c b/fs/xattr_acl.c
index c6ad7c7e3ee..05ac0fe9c4d 100644
--- a/fs/xattr_acl.c
+++ b/fs/xattr_acl.c
@@ -36,7 +36,7 @@ posix_acl_from_xattr(const void *value, size_t size)
 	if (count == 0)
 		return NULL;
 	
-	acl = posix_acl_alloc(count, GFP_KERNEL);
+	acl = posix_acl_alloc(count, GFP_NOFS);
 	if (!acl)
 		return ERR_PTR(-ENOMEM);
 	acl_e = acl->a_entries;
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index c2e30eea74d..70f989895d1 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -904,16 +904,9 @@ xfs_convert_page(
 
 	if (startio) {
 		if (count) {
-			struct backing_dev_info *bdi;
-
-			bdi = inode->i_mapping->backing_dev_info;
 			wbc->nr_to_write--;
-			if (bdi_write_congested(bdi)) {
-				wbc->encountered_congestion = 1;
-				done = 1;
-			} else if (wbc->nr_to_write <= 0) {
+			if (wbc->nr_to_write <= 0)
 				done = 1;
-			}
 		}
 		xfs_start_page_writeback(page, !page_dirty, count);
 	}
diff --git a/fs/xfs/linux-2.6/xfs_sysctl.c b/fs/xfs/linux-2.6/xfs_sysctl.c
index c5bc67c4e3b..7bb5092d6ae 100644
--- a/fs/xfs/linux-2.6/xfs_sysctl.c
+++ b/fs/xfs/linux-2.6/xfs_sysctl.c
@@ -55,170 +55,140 @@ xfs_stats_clear_proc_handler(
 
 static ctl_table xfs_table[] = {
 	{
-		.ctl_name	= XFS_SGID_INHERIT,
 		.procname	= "irix_sgid_inherit",
 		.data		= &xfs_params.sgid_inherit.val,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_minmax,
-		.strategy	= &sysctl_intvec,
+		.proc_handler	= proc_dointvec_minmax,
 		.extra1		= &xfs_params.sgid_inherit.min,
 		.extra2		= &xfs_params.sgid_inherit.max
 	},
 	{
-		.ctl_name	= XFS_SYMLINK_MODE,
 		.procname	= "irix_symlink_mode",
 		.data		= &xfs_params.symlink_mode.val,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_minmax,
-		.strategy	= &sysctl_intvec,
+		.proc_handler	= proc_dointvec_minmax,
 		.extra1		= &xfs_params.symlink_mode.min,
 		.extra2		= &xfs_params.symlink_mode.max
 	},
 	{
-		.ctl_name	= XFS_PANIC_MASK,
 		.procname	= "panic_mask",
 		.data		= &xfs_params.panic_mask.val,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_minmax,
-		.strategy	= &sysctl_intvec,
+		.proc_handler	= proc_dointvec_minmax,
 		.extra1		= &xfs_params.panic_mask.min,
 		.extra2		= &xfs_params.panic_mask.max
 	},
 
 	{
-		.ctl_name	= XFS_ERRLEVEL,
 		.procname	= "error_level",
 		.data		= &xfs_params.error_level.val,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_minmax,
-		.strategy	= &sysctl_intvec,
+		.proc_handler	= proc_dointvec_minmax,
 		.extra1		= &xfs_params.error_level.min,
 		.extra2		= &xfs_params.error_level.max
 	},
 	{
-		.ctl_name	= XFS_SYNCD_TIMER,
 		.procname	= "xfssyncd_centisecs",
 		.data		= &xfs_params.syncd_timer.val,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_minmax,
-		.strategy	= &sysctl_intvec,
+		.proc_handler	= proc_dointvec_minmax,
 		.extra1		= &xfs_params.syncd_timer.min,
 		.extra2		= &xfs_params.syncd_timer.max
 	},
 	{
-		.ctl_name	= XFS_INHERIT_SYNC,
 		.procname	= "inherit_sync",
 		.data		= &xfs_params.inherit_sync.val,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_minmax,
-		.strategy	= &sysctl_intvec,
+		.proc_handler	= proc_dointvec_minmax,
 		.extra1		= &xfs_params.inherit_sync.min,
 		.extra2		= &xfs_params.inherit_sync.max
 	},
 	{
-		.ctl_name	= XFS_INHERIT_NODUMP,
 		.procname	= "inherit_nodump",
 		.data		= &xfs_params.inherit_nodump.val,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_minmax,
-		.strategy	= &sysctl_intvec,
+		.proc_handler	= proc_dointvec_minmax,
 		.extra1		= &xfs_params.inherit_nodump.min,
 		.extra2		= &xfs_params.inherit_nodump.max
 	},
 	{
-		.ctl_name	= XFS_INHERIT_NOATIME,
 		.procname	= "inherit_noatime",
 		.data		= &xfs_params.inherit_noatim.val,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_minmax,
-		.strategy	= &sysctl_intvec,
+		.proc_handler	= proc_dointvec_minmax,
 		.extra1		= &xfs_params.inherit_noatim.min,
 		.extra2		= &xfs_params.inherit_noatim.max
 	},
 	{
-		.ctl_name	= XFS_BUF_TIMER,
 		.procname	= "xfsbufd_centisecs",
 		.data		= &xfs_params.xfs_buf_timer.val,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_minmax,
-		.strategy	= &sysctl_intvec,
+		.proc_handler	= proc_dointvec_minmax,
 		.extra1		= &xfs_params.xfs_buf_timer.min,
 		.extra2		= &xfs_params.xfs_buf_timer.max
 	},
 	{
-		.ctl_name	= XFS_BUF_AGE,
 		.procname	= "age_buffer_centisecs",
 		.data		= &xfs_params.xfs_buf_age.val,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_minmax,
-		.strategy	= &sysctl_intvec,
+		.proc_handler	= proc_dointvec_minmax,
 		.extra1		= &xfs_params.xfs_buf_age.min,
 		.extra2		= &xfs_params.xfs_buf_age.max
 	},
 	{
-		.ctl_name	= XFS_INHERIT_NOSYM,
 		.procname	= "inherit_nosymlinks",
 		.data		= &xfs_params.inherit_nosym.val,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_minmax,
-		.strategy	= &sysctl_intvec,
+		.proc_handler	= proc_dointvec_minmax,
 		.extra1		= &xfs_params.inherit_nosym.min,
 		.extra2		= &xfs_params.inherit_nosym.max
 	},
 	{
-		.ctl_name	= XFS_ROTORSTEP,
 		.procname	= "rotorstep",
 		.data		= &xfs_params.rotorstep.val,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_minmax,
-		.strategy	= &sysctl_intvec,
+		.proc_handler	= proc_dointvec_minmax,
 		.extra1		= &xfs_params.rotorstep.min,
 		.extra2		= &xfs_params.rotorstep.max
 	},
 	{
-		.ctl_name	= XFS_INHERIT_NODFRG,
 		.procname	= "inherit_nodefrag",
 		.data		= &xfs_params.inherit_nodfrg.val,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_minmax,
-		.strategy	= &sysctl_intvec,
+		.proc_handler	= proc_dointvec_minmax,
 		.extra1		= &xfs_params.inherit_nodfrg.min,
 		.extra2		= &xfs_params.inherit_nodfrg.max
 	},
 	{
-		.ctl_name	= XFS_FILESTREAM_TIMER,
 		.procname	= "filestream_centisecs",
 		.data		= &xfs_params.fstrm_timer.val,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_minmax,
-		.strategy	= &sysctl_intvec,
+		.proc_handler	= proc_dointvec_minmax,
 		.extra1		= &xfs_params.fstrm_timer.min,
 		.extra2		= &xfs_params.fstrm_timer.max,
 	},
 	/* please keep this the last entry */
 #ifdef CONFIG_PROC_FS
 	{
-		.ctl_name	= XFS_STATS_CLEAR,
 		.procname	= "stats_clear",
 		.data		= &xfs_params.stats_clear.val,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= &xfs_stats_clear_proc_handler,
-		.strategy	= &sysctl_intvec,
+		.proc_handler	= xfs_stats_clear_proc_handler,
 		.extra1		= &xfs_params.stats_clear.min,
 		.extra2		= &xfs_params.stats_clear.max
 	},
@@ -229,7 +199,6 @@ static ctl_table xfs_table[] = {
 
 static ctl_table xfs_dir_table[] = {
 	{
-		.ctl_name	= FS_XFS,
 		.procname	= "xfs",
 		.mode		= 0555,
 		.child		= xfs_table
@@ -239,7 +208,6 @@ static ctl_table xfs_dir_table[] = {
 
 static ctl_table xfs_root_table[] = {
 	{
-		.ctl_name	= CTL_FS,
 		.procname	= "fs",
 		.mode		= 0555,
 		.child		= xfs_dir_table