Merge branch 'linus' into locking-for-linus

Conflicts:
	lib/Kconfig.debug

16 files changed, 85 insertions, 384 deletions

diff --git a/fs/jfs/Kconfig b/fs/jfs/Kconfig
index 9ff619a6f9c..57cef19951d 100644
--- a/fs/jfs/Kconfig
+++ b/fs/jfs/Kconfig
@@ -1,6 +1,7 @@
 config JFS_FS
 	tristate "JFS filesystem support"
 	select NLS
+	select CRC32
 	help
 	  This is a port of IBM's Journaled Filesystem .  More information is
 	  available in the file <file:Documentation/filesystems/jfs.txt>.
diff --git a/fs/jfs/acl.c b/fs/jfs/acl.c
index d3e5c33665d..a166c1669e8 100644
--- a/fs/jfs/acl.c
+++ b/fs/jfs/acl.c
@@ -233,7 +233,7 @@ int jfs_setattr(struct dentry *dentry, struct iattr *iattr)
 
 	if ((iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) ||
 	    (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid)) {
-		if (DQUOT_TRANSFER(inode, iattr))
+		if (vfs_dq_transfer(inode, iattr))
 			return -EDQUOT;
 	}
 
diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c
index b00ee9f05a0..b2ae190a77b 100644
--- a/fs/jfs/inode.c
+++ b/fs/jfs/inode.c
@@ -158,9 +158,9 @@ void jfs_delete_inode(struct inode *inode)
 		/*
 		 * Free the inode from the quota allocation.
 		 */
-		DQUOT_INIT(inode);
-		DQUOT_FREE_INODE(inode);
-		DQUOT_DROP(inode);
+		vfs_dq_init(inode);
+		vfs_dq_free_inode(inode);
+		vfs_dq_drop(inode);
 	}
 
 	clear_inode(inode);
diff --git a/fs/jfs/jfs_debug.c b/fs/jfs/jfs_debug.c
index 6a73de84bce..dd824d9b0b1 100644
--- a/fs/jfs/jfs_debug.c
+++ b/fs/jfs/jfs_debug.c
@@ -90,7 +90,6 @@ void jfs_proc_init(void)
 
 	if (!(base = proc_mkdir("fs/jfs", NULL)))
 		return;
-	base->owner = THIS_MODULE;
 
 	for (i = 0; i < NPROCENT; i++)
 		proc_create(Entries[i].name, 0, base, Entries[i].proc_fops);
diff --git a/fs/jfs/jfs_dtree.c b/fs/jfs/jfs_dtree.c
index 4dcc0581999..925871e9887 100644
--- a/fs/jfs/jfs_dtree.c
+++ b/fs/jfs/jfs_dtree.c
@@ -381,10 +381,10 @@ static u32 add_index(tid_t tid, struct inode *ip, s64 bn, int slot)
 		 * It's time to move the inline table to an external
 		 * page and begin to build the xtree
 		 */
-		if (DQUOT_ALLOC_BLOCK(ip, sbi->nbperpage))
+		if (vfs_dq_alloc_block(ip, sbi->nbperpage))
 			goto clean_up;
 		if (dbAlloc(ip, 0, sbi->nbperpage, &xaddr)) {
-			DQUOT_FREE_BLOCK(ip, sbi->nbperpage);
+			vfs_dq_free_block(ip, sbi->nbperpage);
 			goto clean_up;
 		}
 
@@ -408,7 +408,7 @@ static u32 add_index(tid_t tid, struct inode *ip, s64 bn, int slot)
 			memcpy(&jfs_ip->i_dirtable, temp_table,
 			       sizeof (temp_table));
 			dbFree(ip, xaddr, sbi->nbperpage);
-			DQUOT_FREE_BLOCK(ip, sbi->nbperpage);
+			vfs_dq_free_block(ip, sbi->nbperpage);
 			goto clean_up;
 		}
 		ip->i_size = PSIZE;
@@ -1027,7 +1027,7 @@ static int dtSplitUp(tid_t tid,
 			n = xlen;
 
 		/* Allocate blocks to quota. */
-		if (DQUOT_ALLOC_BLOCK(ip, n)) {
+		if (vfs_dq_alloc_block(ip, n)) {
 			rc = -EDQUOT;
 			goto extendOut;
 		}
@@ -1308,7 +1308,7 @@ static int dtSplitUp(tid_t tid,
 
 	/* Rollback quota allocation */
 	if (rc && quota_allocation)
-		DQUOT_FREE_BLOCK(ip, quota_allocation);
+		vfs_dq_free_block(ip, quota_allocation);
 
       dtSplitUp_Exit:
 
@@ -1369,7 +1369,7 @@ static int dtSplitPage(tid_t tid, struct inode *ip, struct dtsplit * split,
 		return -EIO;
 
 	/* Allocate blocks to quota. */
-	if (DQUOT_ALLOC_BLOCK(ip, lengthPXD(pxd))) {
+	if (vfs_dq_alloc_block(ip, lengthPXD(pxd))) {
 		release_metapage(rmp);
 		return -EDQUOT;
 	}
@@ -1916,7 +1916,7 @@ static int dtSplitRoot(tid_t tid,
 	rp = rmp->data;
 
 	/* Allocate blocks to quota. */
-	if (DQUOT_ALLOC_BLOCK(ip, lengthPXD(pxd))) {
+	if (vfs_dq_alloc_block(ip, lengthPXD(pxd))) {
 		release_metapage(rmp);
 		return -EDQUOT;
 	}
@@ -2287,7 +2287,7 @@ static int dtDeleteUp(tid_t tid, struct inode *ip,
 	xlen = lengthPXD(&fp->header.self);
 
 	/* Free quota allocation. */
-	DQUOT_FREE_BLOCK(ip, xlen);
+	vfs_dq_free_block(ip, xlen);
 
 	/* free/invalidate its buffer page */
 	discard_metapage(fmp);
@@ -2363,7 +2363,7 @@ static int dtDeleteUp(tid_t tid, struct inode *ip,
 				xlen = lengthPXD(&p->header.self);
 
 				/* Free quota allocation */
-				DQUOT_FREE_BLOCK(ip, xlen);
+				vfs_dq_free_block(ip, xlen);
 
 				/* free/invalidate its buffer page */
 				discard_metapage(mp);
diff --git a/fs/jfs/jfs_extent.c b/fs/jfs/jfs_extent.c
index 7ae1e3281de..bbbd5f202e3 100644
--- a/fs/jfs/jfs_extent.c
+++ b/fs/jfs/jfs_extent.c
@@ -141,7 +141,7 @@ extAlloc(struct inode *ip, s64 xlen, s64 pno, xad_t * xp, bool abnr)
 	}
 
 	/* Allocate blocks to quota. */
-	if (DQUOT_ALLOC_BLOCK(ip, nxlen)) {
+	if (vfs_dq_alloc_block(ip, nxlen)) {
 		dbFree(ip, nxaddr, (s64) nxlen);
 		mutex_unlock(&JFS_IP(ip)->commit_mutex);
 		return -EDQUOT;
@@ -164,7 +164,7 @@ extAlloc(struct inode *ip, s64 xlen, s64 pno, xad_t * xp, bool abnr)
 	 */
 	if (rc) {
 		dbFree(ip, nxaddr, nxlen);
-		DQUOT_FREE_BLOCK(ip, nxlen);
+		vfs_dq_free_block(ip, nxlen);
 		mutex_unlock(&JFS_IP(ip)->commit_mutex);
 		return (rc);
 	}
@@ -256,7 +256,7 @@ int extRealloc(struct inode *ip, s64 nxlen, xad_t * xp, bool abnr)
 		goto exit;
 
 	/* Allocat blocks to quota. */
-	if (DQUOT_ALLOC_BLOCK(ip, nxlen)) {
+	if (vfs_dq_alloc_block(ip, nxlen)) {
 		dbFree(ip, nxaddr, (s64) nxlen);
 		mutex_unlock(&JFS_IP(ip)->commit_mutex);
 		return -EDQUOT;
@@ -297,7 +297,7 @@ int extRealloc(struct inode *ip, s64 nxlen, xad_t * xp, bool abnr)
 		/* extend the extent */
 		if ((rc = xtExtend(0, ip, xoff + xlen, (int) nextend, 0))) {
 			dbFree(ip, xaddr + xlen, delta);
-			DQUOT_FREE_BLOCK(ip, nxlen);
+			vfs_dq_free_block(ip, nxlen);
 			goto exit;
 		}
 	} else {
@@ -308,7 +308,7 @@ int extRealloc(struct inode *ip, s64 nxlen, xad_t * xp, bool abnr)
 		 */
 		if ((rc = xtTailgate(0, ip, xoff, (int) ntail, nxaddr, 0))) {
 			dbFree(ip, nxaddr, nxlen);
-			DQUOT_FREE_BLOCK(ip, nxlen);
+			vfs_dq_free_block(ip, nxlen);
 			goto exit;
 		}
 	}
@@ -362,11 +362,12 @@ exit:
 int extHint(struct inode *ip, s64 offset, xad_t * xp)
 {
 	struct super_block *sb = ip->i_sb;
-	struct xadlist xadl;
-	struct lxdlist lxdl;
-	lxd_t lxd;
+	int nbperpage = JFS_SBI(sb)->nbperpage;
 	s64 prev;
-	int rc, nbperpage = JFS_SBI(sb)->nbperpage;
+	int rc = 0;
+	s64 xaddr;
+	int xlen;
+	int xflag;
 
 	/* init the hint as "no hint provided" */
 	XADaddress(xp, 0);
@@ -376,46 +377,30 @@ int extHint(struct inode *ip, s64 offset, xad_t * xp)
 	 */
 	prev = ((offset & ~POFFSET) >> JFS_SBI(sb)->l2bsize) - nbperpage;
 
-	/* if the offsets in the first page of the file,
-	 * no hint provided.
+	/* if the offset is in the first page of the file, no hint provided.
 	 */
 	if (prev < 0)
-		return (0);
-
-	/* prepare to lookup the previous page's extent info */
-	lxdl.maxnlxd = 1;
-	lxdl.nlxd = 1;
-	lxdl.lxd = &lxd;
-	LXDoffset(&lxd, prev)
-	LXDlength(&lxd, nbperpage);
-
-	xadl.maxnxad = 1;
-	xadl.nxad = 0;
-	xadl.xad = xp;
-
-	/* perform the lookup */
-	if ((rc = xtLookupList(ip, &lxdl, &xadl, 0)))
-		return (rc);
-
-	/* check if no extent exists for the previous page.
-	 * this is possible for sparse files.
-	 */
-	if (xadl.nxad == 0) {
-//		assert(ISSPARSE(ip));
-		return (0);
-	}
+		goto out;
 
-	/* only preserve the abnr flag within the xad flags
-	 * of the returned hint.
-	 */
-	xp->flag &= XAD_NOTRECORDED;
+	rc = xtLookup(ip, prev, nbperpage, &xflag, &xaddr, &xlen, 0);
 
-	if(xadl.nxad != 1 || lengthXAD(xp) != nbperpage) {
-		jfs_error(ip->i_sb, "extHint: corrupt xtree");
-		return -EIO;
-	}
+	if ((rc == 0) && xlen) {
+		if (xlen != nbperpage) {
+			jfs_error(ip->i_sb, "extHint: corrupt xtree");
+			rc = -EIO;
+		}
+		XADaddress(xp, xaddr);
+		XADlength(xp, xlen);
+		/*
+		 * only preserve the abnr flag within the xad flags
+		 * of the returned hint.
+		 */
+		xp->flag  = xflag & XAD_NOTRECORDED;
+	} else
+		rc = 0;
 
-	return (0);
+out:
+	return (rc);
 }
 
 
diff --git a/fs/jfs/jfs_imap.c b/fs/jfs/jfs_imap.c
index 0f94381ca6d..346057218ed 100644
--- a/fs/jfs/jfs_imap.c
+++ b/fs/jfs/jfs_imap.c
@@ -57,12 +57,6 @@
 #include "jfs_debug.h"
 
 /*
- * __mark_inode_dirty expects inodes to be hashed.  Since we don't want
- * special inodes in the fileset inode space, we make them appear hashed,
- * but do not put on any lists.
- */
-
-/*
  * imap locks
  */
 /* iag free list lock */
@@ -497,7 +491,9 @@ struct inode *diReadSpecial(struct super_block *sb, ino_t inum, int secondary)
 	release_metapage(mp);
 
 	/*
-	 * that will look hashed, but won't be on any list; hlist_del()
+	 * __mark_inode_dirty expects inodes to be hashed.  Since we don't
+	 * want special inodes in the fileset inode space, we make them
+	 * appear hashed, but do not put on any lists.  hlist_del()
 	 * will work fine and require no locking.
 	 */
 	ip->i_hash.pprev = &ip->i_hash.next;
diff --git a/fs/jfs/jfs_inode.c b/fs/jfs/jfs_inode.c
index d4d142c2edd..dc0e02159ac 100644
--- a/fs/jfs/jfs_inode.c
+++ b/fs/jfs/jfs_inode.c
@@ -116,7 +116,7 @@ struct inode *ialloc(struct inode *parent, umode_t mode)
 	/*
 	 * Allocate inode to quota.
 	 */
-	if (DQUOT_ALLOC_INODE(inode)) {
+	if (vfs_dq_alloc_inode(inode)) {
 		rc = -EDQUOT;
 		goto fail_drop;
 	}
@@ -162,7 +162,7 @@ struct inode *ialloc(struct inode *parent, umode_t mode)
 	return inode;
 
 fail_drop:
-	DQUOT_DROP(inode);
+	vfs_dq_drop(inode);
 	inode->i_flags |= S_NOQUOTA;
 fail_unlock:
 	inode->i_nlink = 0;
diff --git a/fs/jfs/jfs_inode.h b/fs/jfs/jfs_inode.h
index adb2fafcc54..1eff7db34d6 100644
--- a/fs/jfs/jfs_inode.h
+++ b/fs/jfs/jfs_inode.h
@@ -47,5 +47,5 @@ extern const struct file_operations jfs_dir_operations;
 extern const struct inode_operations jfs_file_inode_operations;
 extern const struct file_operations jfs_file_operations;
 extern const struct inode_operations jfs_symlink_inode_operations;
-extern struct dentry_operations jfs_ci_dentry_operations;
+extern const struct dentry_operations jfs_ci_dentry_operations;
 #endif				/* _H_JFS_INODE */
diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c
index c350057087d..07b6c5dfb4b 100644
--- a/fs/jfs/jfs_metapage.c
+++ b/fs/jfs/jfs_metapage.c
@@ -369,6 +369,7 @@ static int metapage_writepage(struct page *page, struct writeback_control *wbc)
 	unsigned long bio_bytes = 0;
 	unsigned long bio_offset = 0;
 	int offset;
+	int bad_blocks = 0;
 
 	page_start = (sector_t)page->index <<
 		     (PAGE_CACHE_SHIFT - inode->i_blkbits);
@@ -394,6 +395,7 @@ static int metapage_writepage(struct page *page, struct writeback_control *wbc)
 		}
 
 		clear_bit(META_dirty, &mp->flag);
+		set_bit(META_io, &mp->flag);
 		block_offset = offset >> inode->i_blkbits;
 		lblock = page_start + block_offset;
 		if (bio) {
@@ -402,7 +404,6 @@ static int metapage_writepage(struct page *page, struct writeback_control *wbc)
 				len = min(xlen, blocks_per_mp);
 				xlen -= len;
 				bio_bytes += len << inode->i_blkbits;
-				set_bit(META_io, &mp->flag);
 				continue;
 			}
 			/* Not contiguous */
@@ -424,12 +425,14 @@ static int metapage_writepage(struct page *page, struct writeback_control *wbc)
 		xlen = (PAGE_CACHE_SIZE - offset) >> inode->i_blkbits;
 		pblock = metapage_get_blocks(inode, lblock, &xlen);
 		if (!pblock) {
-			/* Need better error handling */
 			printk(KERN_ERR "JFS: metapage_get_blocks failed\n");
-			dec_io(page, last_write_complete);
+			/*
+			 * We already called inc_io(), but can't cancel it
+			 * with dec_io() until we're done with the page
+			 */
+			bad_blocks++;
 			continue;
 		}
-		set_bit(META_io, &mp->flag);
 		len = min(xlen, (int)JFS_SBI(inode->i_sb)->nbperpage);
 
 		bio = bio_alloc(GFP_NOFS, 1);
@@ -459,6 +462,9 @@ static int metapage_writepage(struct page *page, struct writeback_control *wbc)
 
 	unlock_page(page);
 
+	if (bad_blocks)
+		goto err_out;
+
 	if (nr_underway == 0)
 		end_page_writeback(page);
 
@@ -474,7 +480,9 @@ skip:
 	bio_put(bio);
 	unlock_page(page);
 	dec_io(page, last_write_complete);
-
+err_out:
+	while (bad_blocks--)
+		dec_io(page, last_write_complete);
 	return -EIO;
 }
 
diff --git a/fs/jfs/jfs_types.h b/fs/jfs/jfs_types.h
index 649f9817acc..43ea3713c08 100644
--- a/fs/jfs/jfs_types.h
+++ b/fs/jfs/jfs_types.h
@@ -58,35 +58,6 @@ struct timestruc_t {
 #define	ONES		0xffffffffu	/* all bit on		*/
 
 /*
- *	logical xd (lxd)
- */
-typedef struct {
-	unsigned len:24;
-	unsigned off1:8;
-	u32 off2;
-} lxd_t;
-
-/* lxd_t field construction */
-#define	LXDlength(lxd, length32)	( (lxd)->len = length32 )
-#define	LXDoffset(lxd, offset64)\
-{\
-	(lxd)->off1 = ((s64)offset64) >> 32;\
-	(lxd)->off2 = (offset64) & 0xffffffff;\
-}
-
-/* lxd_t field extraction */
-#define	lengthLXD(lxd)	( (lxd)->len )
-#define	offsetLXD(lxd)\
-	( ((s64)((lxd)->off1)) << 32 | (lxd)->off2 )
-
-/* lxd list */
-struct lxdlist {
-	s16 maxnlxd;
-	s16 nlxd;
-	lxd_t *lxd;
-};
-
-/*
  *	physical xd (pxd)
  */
 typedef struct {
diff --git a/fs/jfs/jfs_xtree.c b/fs/jfs/jfs_xtree.c
index ae3acafb447..d654a645864 100644
--- a/fs/jfs/jfs_xtree.c
+++ b/fs/jfs/jfs_xtree.c
@@ -164,11 +164,8 @@ int xtLookup(struct inode *ip, s64 lstart,
 		/* is lookup offset beyond eof ? */
 		size = ((u64) ip->i_size + (JFS_SBI(ip->i_sb)->bsize - 1)) >>
 		    JFS_SBI(ip->i_sb)->l2bsize;
-		if (lstart >= size) {
-			jfs_err("xtLookup: lstart (0x%lx) >= size (0x%lx)",
-				(ulong) lstart, (ulong) size);
+		if (lstart >= size)
 			return 0;
-		}
 	}
 
 	/*
@@ -220,264 +217,6 @@ int xtLookup(struct inode *ip, s64 lstart,
 	return rc;
 }
 
-
-/*
- *	xtLookupList()
- *
- * function: map a single logical extent into a list of physical extent;
- *
- * parameter:
- *	struct inode	*ip,
- *	struct lxdlist	*lxdlist,	lxd list (in)
- *	struct xadlist	*xadlist,	xad list (in/out)
- *	int		flag)
- *
- * coverage of lxd by xad under assumption of
- * . lxd's are ordered and disjoint.
- * . xad's are ordered and disjoint.
- *
- * return:
- *	0:	success
- *
- * note: a page being written (even a single byte) is backed fully,
- *	except the last page which is only backed with blocks
- *	required to cover the last byte;
- *	the extent backing a page is fully contained within an xad;
- */
-int xtLookupList(struct inode *ip, struct lxdlist * lxdlist,
-		 struct xadlist * xadlist, int flag)
-{
-	int rc = 0;
-	struct btstack btstack;
-	int cmp;
-	s64 bn;
-	struct metapage *mp;
-	xtpage_t *p;
-	int index;
-	lxd_t *lxd;
-	xad_t *xad, *pxd;
-	s64 size, lstart, lend, xstart, xend, pstart;
-	s64 llen, xlen, plen;
-	s64 xaddr, paddr;
-	int nlxd, npxd, maxnpxd;
-
-	npxd = xadlist->nxad = 0;
-	maxnpxd = xadlist->maxnxad;
-	pxd = xadlist->xad;
-
-	nlxd = lxdlist->nlxd;
-	lxd = lxdlist->lxd;
-
-	lstart = offsetLXD(lxd);
-	llen = lengthLXD(lxd);
-	lend = lstart + llen;
-
-	size = (ip->i_size + (JFS_SBI(ip->i_sb)->bsize - 1)) >>
-	    JFS_SBI(ip->i_sb)->l2bsize;
-
-	/*
-	 * search for the xad entry covering the logical extent
-	 */
-      search:
-	if (lstart >= size)
-		return 0;
-
-	if ((rc = xtSearch(ip, lstart, NULL, &cmp, &btstack, 0)))
-		return rc;
-
-	/*
-	 *	compute the physical extent covering logical extent
-	 *
-	 * N.B. search may have failed (e.g., hole in sparse file),
-	 * and returned the index of the next entry.
-	 */
-//map:
-	/* retrieve search result */
-	XT_GETSEARCH(ip, btstack.top, bn, mp, p, index);
-
-	/* is xad on the next sibling page ? */
-	if (index == le16_to_cpu(p->header.nextindex)) {
-		if (p->header.flag & BT_ROOT)
-			goto mapend;
-
-		if ((bn = le64_to_cpu(p->header.next)) == 0)
-			goto mapend;
-
-		XT_PUTPAGE(mp);
-
-		/* get next sibling page */
-		XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
-		if (rc)
-			return rc;
-
-		index = XTENTRYSTART;
-	}
-
-	xad = &p->xad[index];
-
-	/*
-	 * is lxd covered by xad ?
-	 */
-      compare:
-	xstart = offsetXAD(xad);
-	xlen = lengthXAD(xad);
-	xend = xstart + xlen;
-	xaddr = addressXAD(xad);
-
-      compare1:
-	if (xstart < lstart)
-		goto compare2;
-
-	/* (lstart <= xstart) */
-
-	/* lxd is NOT covered by xad */
-	if (lend <= xstart) {
-		/*
-		 * get next lxd
-		 */
-		if (--nlxd == 0)
-			goto mapend;
-		lxd++;
-
-		lstart = offsetLXD(lxd);
-		llen = lengthLXD(lxd);
-		lend = lstart + llen;
-		if (lstart >= size)
-			goto mapend;
-
-		/* compare with the current xad */
-		goto compare1;
-	}
-	/* lxd is covered by xad */
-	else {			/* (xstart < lend) */
-
-		/* initialize new pxd */
-		pstart = xstart;
-		plen = min(lend - xstart, xlen);
-		paddr = xaddr;
-
-		goto cover;
-	}
-
-	/* (xstart < lstart) */
-      compare2:
-	/* lxd is covered by xad */
-	if (lstart < xend) {
-		/* initialize new pxd */
-		pstart = lstart;
-		plen = min(xend - lstart, llen);
-		paddr = xaddr + (lstart - xstart);
-
-		goto cover;
-	}
-	/* lxd is NOT covered by xad */
-	else {			/* (xend <= lstart) */
-
-		/*
-		 * get next xad
-		 *
-		 * linear search next xad covering lxd on
-		 * the current xad page, and then tree search
-		 */
-		if (index == le16_to_cpu(p->header.nextindex) - 1) {
-			if (p->header.flag & BT_ROOT)
-				goto mapend;
-
-			XT_PUTPAGE(mp);
-			goto search;
-		} else {
-			index++;
-			xad++;
-
-			/* compare with new xad */
-			goto compare;
-		}
-	}
-
-	/*
-	 * lxd is covered by xad and a new pxd has been initialized
-	 * (lstart <= xstart < lend) or (xstart < lstart < xend)
-	 */
-      cover:
-	/* finalize pxd corresponding to current xad */
-	XT_PUTENTRY(pxd, xad->flag, pstart, plen, paddr);
-
-	if (++npxd >= maxnpxd)
-		goto mapend;
-	pxd++;
-
-	/*
-	 * lxd is fully covered by xad
-	 */
-	if (lend <= xend) {
-		/*
-		 * get next lxd
-		 */
-		if (--nlxd == 0)
-			goto mapend;
-		lxd++;
-
-		lstart = offsetLXD(lxd);
-		llen = lengthLXD(lxd);
-		lend = lstart + llen;
-		if (lstart >= size)
-			goto mapend;
-
-		/*
-		 * test for old xad covering new lxd
-		 * (old xstart < new lstart)
-		 */
-		goto compare2;
-	}
-	/*
-	 * lxd is partially covered by xad
-	 */
-	else {			/* (xend < lend) */
-
-		/*
-		 * get next xad
-		 *
-		 * linear search next xad covering lxd on
-		 * the current xad page, and then next xad page search
-		 */
-		if (index == le16_to_cpu(p->header.nextindex) - 1) {
-			if (p->header.flag & BT_ROOT)
-				goto mapend;
-
-			if ((bn = le64_to_cpu(p->header.next)) == 0)
-				goto mapend;
-
-			XT_PUTPAGE(mp);
-
-			/* get next sibling page */
-			XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
-			if (rc)
-				return rc;
-
-			index = XTENTRYSTART;
-			xad = &p->xad[index];
-		} else {
-			index++;
-			xad++;
-		}
-
-		/*
-		 * test for new xad covering old lxd
-		 * (old lstart < new xstart)
-		 */
-		goto compare;
-	}
-
-      mapend:
-	xadlist->nxad = npxd;
-
-//out:
-	XT_PUTPAGE(mp);
-
-	return rc;
-}
-
-
 /*
  *	xtSearch()
  *
@@ -846,10 +585,10 @@ int xtInsert(tid_t tid,		/* transaction id */
 			hint = addressXAD(xad) + lengthXAD(xad) - 1;
 		} else
 			hint = 0;
-		if ((rc = DQUOT_ALLOC_BLOCK(ip, xlen)))
+		if ((rc = vfs_dq_alloc_block(ip, xlen)))
 			goto out;
 		if ((rc = dbAlloc(ip, hint, (s64) xlen, &xaddr))) {
-			DQUOT_FREE_BLOCK(ip, xlen);
+			vfs_dq_free_block(ip, xlen);
 			goto out;
 		}
 	}
@@ -878,7 +617,7 @@ int xtInsert(tid_t tid,		/* transaction id */
 			/* undo data extent allocation */
 			if (*xaddrp == 0) {
 				dbFree(ip, xaddr, (s64) xlen);
-				DQUOT_FREE_BLOCK(ip, xlen);
+				vfs_dq_free_block(ip, xlen);
 			}
 			return rc;
 		}
@@ -1246,7 +985,7 @@ xtSplitPage(tid_t tid, struct inode *ip,
 	rbn = addressPXD(pxd);
 
 	/* Allocate blocks to quota. */
-	if (DQUOT_ALLOC_BLOCK(ip, lengthPXD(pxd))) {
+	if (vfs_dq_alloc_block(ip, lengthPXD(pxd))) {
 		rc = -EDQUOT;
 		goto clean_up;
 	}
@@ -1456,7 +1195,7 @@ xtSplitPage(tid_t tid, struct inode *ip,
 
 	/* Rollback quota allocation. */
 	if (quota_allocation)
-		DQUOT_FREE_BLOCK(ip, quota_allocation);
+		vfs_dq_free_block(ip, quota_allocation);
 
 	return (rc);
 }
@@ -1513,7 +1252,7 @@ xtSplitRoot(tid_t tid,
 		return -EIO;
 
 	/* Allocate blocks to quota. */
-	if (DQUOT_ALLOC_BLOCK(ip, lengthPXD(pxd))) {
+	if (vfs_dq_alloc_block(ip, lengthPXD(pxd))) {
 		release_metapage(rmp);
 		return -EDQUOT;
 	}
@@ -3941,7 +3680,7 @@ s64 xtTruncate(tid_t tid, struct inode *ip, s64 newsize, int flag)
 		ip->i_size = newsize;
 
 	/* update quota allocation to reflect freed blocks */
-	DQUOT_FREE_BLOCK(ip, nfreed);
+	vfs_dq_free_block(ip, nfreed);
 
 	/*
 	 * free tlock of invalidated pages
diff --git a/fs/jfs/jfs_xtree.h b/fs/jfs/jfs_xtree.h
index 70815c8a3d6..08c0c749b98 100644
--- a/fs/jfs/jfs_xtree.h
+++ b/fs/jfs/jfs_xtree.h
@@ -110,8 +110,6 @@ typedef union {
  */
 extern int xtLookup(struct inode *ip, s64 lstart, s64 llen,
 		    int *pflag, s64 * paddr, int *plen, int flag);
-extern int xtLookupList(struct inode *ip, struct lxdlist * lxdlist,
-			struct xadlist * xadlist, int flag);
 extern void xtInitRoot(tid_t tid, struct inode *ip);
 extern int xtInsert(tid_t tid, struct inode *ip,
 		    int xflag, s64 xoff, int xlen, s64 * xaddrp, int flag);
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index b4de56b851e..514ee2edb92 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -35,7 +35,7 @@
 /*
  * forward references
  */
-struct dentry_operations jfs_ci_dentry_operations;
+const struct dentry_operations jfs_ci_dentry_operations;
 
 static s64 commitZeroLink(tid_t, struct inode *);
 
@@ -356,7 +356,7 @@ static int jfs_rmdir(struct inode *dip, struct dentry *dentry)
 	jfs_info("jfs_rmdir: dip:0x%p name:%s", dip, dentry->d_name.name);
 
 	/* Init inode for quota operations. */
-	DQUOT_INIT(ip);
+	vfs_dq_init(ip);
 
 	/* directory must be empty to be removed */
 	if (!dtEmpty(ip)) {
@@ -483,7 +483,7 @@ static int jfs_unlink(struct inode *dip, struct dentry *dentry)
 	jfs_info("jfs_unlink: dip:0x%p name:%s", dip, dentry->d_name.name);
 
 	/* Init inode for quota operations. */
-	DQUOT_INIT(ip);
+	vfs_dq_init(ip);
 
 	if ((rc = get_UCSname(&dname, dentry)))
 		goto out;
@@ -1136,7 +1136,7 @@ static int jfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	} else if (new_ip) {
 		IWRITE_LOCK(new_ip, RDWRLOCK_NORMAL);
 		/* Init inode for quota operations. */
-		DQUOT_INIT(new_ip);
+		vfs_dq_init(new_ip);
 	}
 
 	/*
@@ -1595,7 +1595,7 @@ out:
 	return result;
 }
 
-struct dentry_operations jfs_ci_dentry_operations =
+const struct dentry_operations jfs_ci_dentry_operations =
 {
 	.d_hash = jfs_ci_hash,
 	.d_compare = jfs_ci_compare,
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index b37d1f78b85..6f21adf9479 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -29,6 +29,7 @@
 #include <linux/posix_acl.h>
 #include <linux/buffer_head.h>
 #include <linux/exportfs.h>
+#include <linux/crc32.h>
 #include <asm/uaccess.h>
 #include <linux/seq_file.h>
 
@@ -168,6 +169,9 @@ static int jfs_statfs(struct dentry *dentry, struct kstatfs *buf)
 	buf->f_files = maxinodes;
 	buf->f_ffree = maxinodes - (atomic_read(&imap->im_numinos) -
 				    atomic_read(&imap->im_numfree));
+	buf->f_fsid.val[0] = (u32)crc32_le(0, sbi->uuid, sizeof(sbi->uuid)/2);
+	buf->f_fsid.val[1] = (u32)crc32_le(0, sbi->uuid + sizeof(sbi->uuid)/2,
+					sizeof(sbi->uuid)/2);
 
 	buf->f_namelen = JFS_NAME_MAX;
 	return 0;
diff --git a/fs/jfs/xattr.c b/fs/jfs/xattr.c
index 9b7f2cdaae0..61dfa8173eb 100644
--- a/fs/jfs/xattr.c
+++ b/fs/jfs/xattr.c
@@ -260,14 +260,14 @@ static int ea_write(struct inode *ip, struct jfs_ea_list *ealist, int size,
 	nblocks = (size + (sb->s_blocksize - 1)) >> sb->s_blocksize_bits;
 
 	/* Allocate new blocks to quota. */
-	if (DQUOT_ALLOC_BLOCK(ip, nblocks)) {
+	if (vfs_dq_alloc_block(ip, nblocks)) {
 		return -EDQUOT;
 	}
 
 	rc = dbAlloc(ip, INOHINT(ip), nblocks, &blkno);
 	if (rc) {
 		/*Rollback quota allocation. */
-		DQUOT_FREE_BLOCK(ip, nblocks);
+		vfs_dq_free_block(ip, nblocks);
 		return rc;
 	}
 
@@ -332,7 +332,7 @@ static int ea_write(struct inode *ip, struct jfs_ea_list *ealist, int size,
 
       failed:
 	/* Rollback quota allocation. */
-	DQUOT_FREE_BLOCK(ip, nblocks);
+	vfs_dq_free_block(ip, nblocks);
 
 	dbFree(ip, blkno, nblocks);
 	return rc;
@@ -538,7 +538,7 @@ static int ea_get(struct inode *inode, struct ea_buffer *ea_buf, int min_size)
 
 	if (blocks_needed > current_blocks) {
 		/* Allocate new blocks to quota. */
-		if (DQUOT_ALLOC_BLOCK(inode, blocks_needed))
+		if (vfs_dq_alloc_block(inode, blocks_needed))
 			return -EDQUOT;
 
 		quota_allocation = blocks_needed;
@@ -602,7 +602,7 @@ static int ea_get(struct inode *inode, struct ea_buffer *ea_buf, int min_size)
       clean_up:
 	/* Rollback quota allocation */
 	if (quota_allocation)
-		DQUOT_FREE_BLOCK(inode, quota_allocation);
+		vfs_dq_free_block(inode, quota_allocation);
 
 	return (rc);
 }
@@ -677,7 +677,7 @@ static int ea_put(tid_t tid, struct inode *inode, struct ea_buffer *ea_buf,
 
 	/* If old blocks exist, they must be removed from quota allocation. */
 	if (old_blocks)
-		DQUOT_FREE_BLOCK(inode, old_blocks);
+		vfs_dq_free_block(inode, old_blocks);
 
 	inode->i_ctime = CURRENT_TIME;