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-rw-r--r--fs/gfs2/acl.c75
-rw-r--r--fs/gfs2/acl.h2
-rw-r--r--fs/gfs2/aops.c3
-rw-r--r--fs/gfs2/bmap.c14
-rw-r--r--fs/gfs2/dir.c221
-rw-r--r--fs/gfs2/dir.h1
-rw-r--r--fs/gfs2/file.c23
-rw-r--r--fs/gfs2/glock.c48
-rw-r--r--fs/gfs2/glock.h6
-rw-r--r--fs/gfs2/glops.c15
-rw-r--r--fs/gfs2/incore.h5
-rw-r--r--fs/gfs2/inode.c35
-rw-r--r--fs/gfs2/inode.h2
-rw-r--r--fs/gfs2/log.c1
-rw-r--r--fs/gfs2/main.c1
-rw-r--r--fs/gfs2/ops_fstype.c4
-rw-r--r--fs/gfs2/rgrp.c52
-rw-r--r--fs/gfs2/rgrp.h4
-rw-r--r--fs/gfs2/super.c38
-rw-r--r--fs/gfs2/sys.c7
20 files changed, 274 insertions, 283 deletions
diff --git a/fs/gfs2/acl.c b/fs/gfs2/acl.c
index cbc07155b1a..884c9af0542 100644
--- a/fs/gfs2/acl.c
+++ b/fs/gfs2/acl.c
@@ -67,36 +67,9 @@ static struct posix_acl *gfs2_acl_get(struct gfs2_inode *ip, int type)
return acl;
}
-/**
- * gfs2_check_acl - Check an ACL to see if we're allowed to do something
- * @inode: the file we want to do something to
- * @mask: what we want to do
- *
- * Returns: errno
- */
-
-int gfs2_check_acl(struct inode *inode, int mask, unsigned int flags)
+struct posix_acl *gfs2_get_acl(struct inode *inode, int type)
{
- struct posix_acl *acl;
- int error;
-
- if (flags & IPERM_FLAG_RCU) {
- if (!negative_cached_acl(inode, ACL_TYPE_ACCESS))
- return -ECHILD;
- return -EAGAIN;
- }
-
- 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);
- posix_acl_release(acl);
- return error;
- }
-
- return -EAGAIN;
+ return gfs2_acl_get(GFS2_I(inode), type);
}
static int gfs2_set_mode(struct inode *inode, mode_t mode)
@@ -143,7 +116,7 @@ out:
int gfs2_acl_create(struct gfs2_inode *dip, struct inode *inode)
{
struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
mode_t mode = inode->i_mode;
int error = 0;
@@ -168,16 +141,10 @@ int gfs2_acl_create(struct gfs2_inode *dip, struct inode *inode)
goto out;
}
- clone = posix_acl_clone(acl, GFP_NOFS);
- error = -ENOMEM;
- if (!clone)
- goto out;
- posix_acl_release(acl);
- acl = clone;
-
- error = posix_acl_create_masq(acl, &mode);
+ error = posix_acl_create(&acl, GFP_NOFS, &mode);
if (error < 0)
- goto out;
+ return error;
+
if (error == 0)
goto munge;
@@ -193,7 +160,7 @@ out:
int gfs2_acl_chmod(struct gfs2_inode *ip, struct iattr *attr)
{
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
char *data;
unsigned int len;
int error;
@@ -204,25 +171,19 @@ int gfs2_acl_chmod(struct gfs2_inode *ip, struct iattr *attr)
if (!acl)
return gfs2_setattr_simple(ip, attr);
- clone = posix_acl_clone(acl, GFP_NOFS);
+ error = posix_acl_chmod(&acl, GFP_NOFS, attr->ia_mode);
+ if (error)
+ return error;
+
+ len = posix_acl_to_xattr(acl, NULL, 0);
+ data = kmalloc(len, GFP_NOFS);
error = -ENOMEM;
- if (!clone)
+ if (data == NULL)
goto out;
- posix_acl_release(acl);
- acl = clone;
-
- 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_xattr_acl_chmod(ip, attr, data);
- kfree(data);
- set_cached_acl(&ip->i_inode, ACL_TYPE_ACCESS, acl);
- }
+ posix_acl_to_xattr(acl, data, len);
+ 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);
diff --git a/fs/gfs2/acl.h b/fs/gfs2/acl.h
index a93907c8159..0da38dc7efe 100644
--- a/fs/gfs2/acl.h
+++ b/fs/gfs2/acl.h
@@ -16,7 +16,7 @@
#define GFS2_POSIX_ACL_DEFAULT "posix_acl_default"
#define GFS2_ACL_MAX_ENTRIES 25
-extern int gfs2_check_acl(struct inode *inode, int mask, unsigned int);
+extern struct posix_acl *gfs2_get_acl(struct inode *inode, int type);
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 const struct xattr_handler gfs2_xattr_system_handler;
diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c
index 802ac5eeba2..f9fbbe96c22 100644
--- a/fs/gfs2/aops.c
+++ b/fs/gfs2/aops.c
@@ -1069,6 +1069,7 @@ int gfs2_releasepage(struct page *page, gfp_t gfp_mask)
return 0;
gfs2_log_lock(sdp);
+ spin_lock(&sdp->sd_ail_lock);
head = bh = page_buffers(page);
do {
if (atomic_read(&bh->b_count))
@@ -1080,6 +1081,7 @@ int gfs2_releasepage(struct page *page, gfp_t gfp_mask)
goto not_possible;
bh = bh->b_this_page;
} while(bh != head);
+ spin_unlock(&sdp->sd_ail_lock);
gfs2_log_unlock(sdp);
head = bh = page_buffers(page);
@@ -1112,6 +1114,7 @@ not_possible: /* Should never happen */
WARN_ON(buffer_dirty(bh));
WARN_ON(buffer_pinned(bh));
cannot_release:
+ spin_unlock(&sdp->sd_ail_lock);
gfs2_log_unlock(sdp);
return 0;
}
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index e65493a8ac0..7878c473ae6 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -854,11 +854,7 @@ static int do_strip(struct gfs2_inode *ip, struct buffer_head *dibh,
blen++;
else {
if (bstart) {
- if (metadata)
- __gfs2_free_meta(ip, bstart, blen);
- else
- __gfs2_free_data(ip, bstart, blen);
-
+ __gfs2_free_blocks(ip, bstart, blen, metadata);
btotal += blen;
}
@@ -870,11 +866,7 @@ static int do_strip(struct gfs2_inode *ip, struct buffer_head *dibh,
gfs2_add_inode_blocks(&ip->i_inode, -1);
}
if (bstart) {
- if (metadata)
- __gfs2_free_meta(ip, bstart, blen);
- else
- __gfs2_free_data(ip, bstart, blen);
-
+ __gfs2_free_blocks(ip, bstart, blen, metadata);
btotal += blen;
}
@@ -1224,6 +1216,8 @@ int gfs2_setattr_size(struct inode *inode, u64 newsize)
if (ret)
return ret;
+ inode_dio_wait(inode);
+
oldsize = inode->i_size;
if (newsize >= oldsize)
return do_grow(inode, newsize);
diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index 091ee477953..1cc2f8ec52a 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -339,6 +339,67 @@ fail:
return (copied) ? copied : error;
}
+/**
+ * gfs2_dir_get_hash_table - Get pointer to the dir hash table
+ * @ip: The inode in question
+ *
+ * Returns: The hash table or an error
+ */
+
+static __be64 *gfs2_dir_get_hash_table(struct gfs2_inode *ip)
+{
+ struct inode *inode = &ip->i_inode;
+ int ret;
+ u32 hsize;
+ __be64 *hc;
+
+ BUG_ON(!(ip->i_diskflags & GFS2_DIF_EXHASH));
+
+ hc = ip->i_hash_cache;
+ if (hc)
+ return hc;
+
+ hsize = 1 << ip->i_depth;
+ hsize *= sizeof(__be64);
+ if (hsize != i_size_read(&ip->i_inode)) {
+ gfs2_consist_inode(ip);
+ return ERR_PTR(-EIO);
+ }
+
+ hc = kmalloc(hsize, GFP_NOFS);
+ ret = -ENOMEM;
+ if (hc == NULL)
+ return ERR_PTR(-ENOMEM);
+
+ ret = gfs2_dir_read_data(ip, (char *)hc, 0, hsize, 1);
+ if (ret < 0) {
+ kfree(hc);
+ return ERR_PTR(ret);
+ }
+
+ spin_lock(&inode->i_lock);
+ if (ip->i_hash_cache)
+ kfree(hc);
+ else
+ ip->i_hash_cache = hc;
+ spin_unlock(&inode->i_lock);
+
+ return ip->i_hash_cache;
+}
+
+/**
+ * gfs2_dir_hash_inval - Invalidate dir hash
+ * @ip: The directory inode
+ *
+ * Must be called with an exclusive glock, or during glock invalidation.
+ */
+void gfs2_dir_hash_inval(struct gfs2_inode *ip)
+{
+ __be64 *hc = ip->i_hash_cache;
+ ip->i_hash_cache = NULL;
+ kfree(hc);
+}
+
static inline int gfs2_dirent_sentinel(const struct gfs2_dirent *dent)
{
return dent->de_inum.no_addr == 0 || dent->de_inum.no_formal_ino == 0;
@@ -686,17 +747,12 @@ static int get_leaf(struct gfs2_inode *dip, u64 leaf_no,
static int get_leaf_nr(struct gfs2_inode *dip, u32 index,
u64 *leaf_out)
{
- __be64 leaf_no;
- int error;
-
- error = gfs2_dir_read_data(dip, (char *)&leaf_no,
- index * sizeof(__be64),
- sizeof(__be64), 0);
- if (error != sizeof(u64))
- return (error < 0) ? error : -EIO;
-
- *leaf_out = be64_to_cpu(leaf_no);
+ __be64 *hash;
+ hash = gfs2_dir_get_hash_table(dip);
+ if (IS_ERR(hash))
+ return PTR_ERR(hash);
+ *leaf_out = be64_to_cpu(*(hash + index));
return 0;
}
@@ -966,6 +1022,8 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
for (x = 0; x < half_len; x++)
lp[x] = cpu_to_be64(bn);
+ gfs2_dir_hash_inval(dip);
+
error = gfs2_dir_write_data(dip, (char *)lp, start * sizeof(u64),
half_len * sizeof(u64));
if (error != half_len * sizeof(u64)) {
@@ -1052,70 +1110,54 @@ fail_brelse:
static int dir_double_exhash(struct gfs2_inode *dip)
{
- struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
struct buffer_head *dibh;
u32 hsize;
- u64 *buf;
- u64 *from, *to;
- u64 block;
- u64 disksize = i_size_read(&dip->i_inode);
+ u32 hsize_bytes;
+ __be64 *hc;
+ __be64 *hc2, *h;
int x;
int error = 0;
hsize = 1 << dip->i_depth;
- if (hsize * sizeof(u64) != disksize) {
- gfs2_consist_inode(dip);
- return -EIO;
- }
+ hsize_bytes = hsize * sizeof(__be64);
- /* Allocate both the "from" and "to" buffers in one big chunk */
+ hc = gfs2_dir_get_hash_table(dip);
+ if (IS_ERR(hc))
+ return PTR_ERR(hc);
- buf = kcalloc(3, sdp->sd_hash_bsize, GFP_NOFS);
- if (!buf)
+ h = hc2 = kmalloc(hsize_bytes * 2, GFP_NOFS);
+ if (!hc2)
return -ENOMEM;
- for (block = disksize >> sdp->sd_hash_bsize_shift; block--;) {
- error = gfs2_dir_read_data(dip, (char *)buf,
- block * sdp->sd_hash_bsize,
- sdp->sd_hash_bsize, 1);
- if (error != sdp->sd_hash_bsize) {
- if (error >= 0)
- error = -EIO;
- goto fail;
- }
-
- from = buf;
- to = (u64 *)((char *)buf + sdp->sd_hash_bsize);
-
- for (x = sdp->sd_hash_ptrs; x--; from++) {
- *to++ = *from; /* No endianess worries */
- *to++ = *from;
- }
+ error = gfs2_meta_inode_buffer(dip, &dibh);
+ if (error)
+ goto out_kfree;
- error = gfs2_dir_write_data(dip,
- (char *)buf + sdp->sd_hash_bsize,
- block * sdp->sd_sb.sb_bsize,
- sdp->sd_sb.sb_bsize);
- if (error != sdp->sd_sb.sb_bsize) {
- if (error >= 0)
- error = -EIO;
- goto fail;
- }
+ for (x = 0; x < hsize; x++) {
+ *h++ = *hc;
+ *h++ = *hc;
+ hc++;
}
- kfree(buf);
-
- error = gfs2_meta_inode_buffer(dip, &dibh);
- if (!gfs2_assert_withdraw(sdp, !error)) {
- dip->i_depth++;
- gfs2_dinode_out(dip, dibh->b_data);
- brelse(dibh);
- }
+ error = gfs2_dir_write_data(dip, (char *)hc2, 0, hsize_bytes * 2);
+ if (error != (hsize_bytes * 2))
+ goto fail;
- return error;
+ gfs2_dir_hash_inval(dip);
+ dip->i_hash_cache = hc2;
+ dip->i_depth++;
+ gfs2_dinode_out(dip, dibh->b_data);
+ brelse(dibh);
+ return 0;
fail:
- kfree(buf);
+ /* Replace original hash table & size */
+ gfs2_dir_write_data(dip, (char *)hc, 0, hsize_bytes);
+ i_size_write(&dip->i_inode, hsize_bytes);
+ gfs2_dinode_out(dip, dibh->b_data);
+ brelse(dibh);
+out_kfree:
+ kfree(hc2);
return error;
}
@@ -1348,6 +1390,7 @@ out:
return error;
}
+
/**
* dir_e_read - Reads the entries from a directory into a filldir buffer
* @dip: dinode pointer
@@ -1362,9 +1405,7 @@ static int dir_e_read(struct inode *inode, u64 *offset, void *opaque,
filldir_t filldir)
{
struct gfs2_inode *dip = GFS2_I(inode);
- struct gfs2_sbd *sdp = GFS2_SB(inode);
u32 hsize, len = 0;
- u32 ht_offset, lp_offset, ht_offset_cur = -1;
u32 hash, index;
__be64 *lp;
int copied = 0;
@@ -1372,37 +1413,17 @@ static int dir_e_read(struct inode *inode, u64 *offset, void *opaque,
unsigned depth = 0;
hsize = 1 << dip->i_depth;
- if (hsize * sizeof(u64) != i_size_read(inode)) {
- gfs2_consist_inode(dip);
- return -EIO;
- }
-
hash = gfs2_dir_offset2hash(*offset);
index = hash >> (32 - dip->i_depth);
- lp = kmalloc(sdp->sd_hash_bsize, GFP_NOFS);
- if (!lp)
- return -ENOMEM;
+ lp = gfs2_dir_get_hash_table(dip);
+ if (IS_ERR(lp))
+ return PTR_ERR(lp);
while (index < hsize) {
- lp_offset = index & (sdp->sd_hash_ptrs - 1);
- ht_offset = index - lp_offset;
-
- if (ht_offset_cur != ht_offset) {
- error = gfs2_dir_read_data(dip, (char *)lp,
- ht_offset * sizeof(__be64),
- sdp->sd_hash_bsize, 1);
- if (error != sdp->sd_hash_bsize) {
- if (error >= 0)
- error = -EIO;
- goto out;
- }
- ht_offset_cur = ht_offset;
- }
-
error = gfs2_dir_read_leaf(inode, offset, opaque, filldir,
&copied, &depth,
- be64_to_cpu(lp[lp_offset]));
+ be64_to_cpu(lp[index]));
if (error)
break;
@@ -1410,8 +1431,6 @@ static int dir_e_read(struct inode *inode, u64 *offset, void *opaque,
index = (index & ~(len - 1)) + len;
}
-out:
- kfree(lp);
if (error > 0)
error = 0;
return error;
@@ -1914,43 +1933,22 @@ out:
int gfs2_dir_exhash_dealloc(struct gfs2_inode *dip)
{
- struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
struct buffer_head *bh;
struct gfs2_leaf *leaf;
u32 hsize, len;
- u32 ht_offset, lp_offset, ht_offset_cur = -1;
u32 index = 0, next_index;
__be64 *lp;
u64 leaf_no;
int error = 0, last;
hsize = 1 << dip->i_depth;
- if (hsize * sizeof(u64) != i_size_read(&dip->i_inode)) {
- gfs2_consist_inode(dip);
- return -EIO;
- }
- lp = kmalloc(sdp->sd_hash_bsize, GFP_NOFS);
- if (!lp)
- return -ENOMEM;
+ lp = gfs2_dir_get_hash_table(dip);
+ if (IS_ERR(lp))
+ return PTR_ERR(lp);
while (index < hsize) {
- lp_offset = index & (sdp->sd_hash_ptrs - 1);
- ht_offset = index - lp_offset;
-
- if (ht_offset_cur != ht_offset) {
- error = gfs2_dir_read_data(dip, (char *)lp,
- ht_offset * sizeof(__be64),
- sdp->sd_hash_bsize, 1);
- if (error != sdp->sd_hash_bsize) {
- if (error >= 0)
- error = -EIO;
- goto out;
- }
- ht_offset_cur = ht_offset;
- }
-
- leaf_no = be64_to_cpu(lp[lp_offset]);
+ leaf_no = be64_to_cpu(lp[index]);
if (leaf_no) {
error = get_leaf(dip, leaf_no, &bh);
if (error)
@@ -1976,7 +1974,6 @@ int gfs2_dir_exhash_dealloc(struct gfs2_inode *dip)
}
out:
- kfree(lp);
return error;
}
diff --git a/fs/gfs2/dir.h b/fs/gfs2/dir.h
index e686af11bec..ff5772fbf02 100644
--- a/fs/gfs2/dir.h
+++ b/fs/gfs2/dir.h
@@ -35,6 +35,7 @@ extern int gfs2_diradd_alloc_required(struct inode *dir,
const struct qstr *filename);
extern int gfs2_dir_get_new_buffer(struct gfs2_inode *ip, u64 block,
struct buffer_head **bhp);
+extern void gfs2_dir_hash_inval(struct gfs2_inode *ip);
static inline u32 gfs2_disk_hash(const char *data, int len)
{
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index a9f5cbe45cd..edeb9e80290 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -174,7 +174,9 @@ void gfs2_set_inode_flags(struct inode *inode)
struct gfs2_inode *ip = GFS2_I(inode);
unsigned int flags = inode->i_flags;
- flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
+ flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC|S_NOSEC);
+ if ((ip->i_eattr == 0) && !is_sxid(inode->i_mode))
+ inode->i_flags |= S_NOSEC;
if (ip->i_diskflags & GFS2_DIF_IMMUTABLE)
flags |= S_IMMUTABLE;
if (ip->i_diskflags & GFS2_DIF_APPENDONLY)
@@ -243,7 +245,7 @@ static int do_gfs2_set_flags(struct file *filp, u32 reqflags, u32 mask)
!capable(CAP_LINUX_IMMUTABLE))
goto out;
if (!IS_IMMUTABLE(inode)) {
- error = gfs2_permission(inode, MAY_WRITE, 0);
+ error = gfs2_permission(inode, MAY_WRITE);
if (error)
goto out;
}
@@ -544,7 +546,9 @@ static int gfs2_close(struct inode *inode, struct file *file)
/**
* gfs2_fsync - sync the dirty data for a file (across the cluster)
- * @file: the file that points to the dentry (we ignore this)
+ * @file: the file that points to the dentry
+ * @start: the start position in the file to sync
+ * @end: the end position in the file to sync
* @datasync: set if we can ignore timestamp changes
*
* The VFS will flush data for us. We only need to worry
@@ -553,23 +557,32 @@ static int gfs2_close(struct inode *inode, struct file *file)
* Returns: errno
*/
-static int gfs2_fsync(struct file *file, int datasync)
+static int gfs2_fsync(struct file *file, loff_t start, loff_t end,
+ int datasync)
{
struct inode *inode = file->f_mapping->host;
int sync_state = inode->i_state & (I_DIRTY_SYNC|I_DIRTY_DATASYNC);
struct gfs2_inode *ip = GFS2_I(inode);
int ret;
+ ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
+ if (ret)
+ return ret;
+ mutex_lock(&inode->i_mutex);
+
if (datasync)
sync_state &= ~I_DIRTY_SYNC;
if (sync_state) {
ret = sync_inode_metadata(inode, 1);
- if (ret)
+ if (ret) {
+ mutex_unlock(&inode->i_mutex);
return ret;
+ }
gfs2_ail_flush(ip->i_gl);
}
+ mutex_unlock(&inode->i_mutex);
return 0;
}
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index 2792a790e50..88e8a23d002 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -409,6 +409,10 @@ static void state_change(struct gfs2_glock *gl, unsigned int new_state)
if (held1 && held2 && list_empty(&gl->gl_holders))
clear_bit(GLF_QUEUED, &gl->gl_flags);
+ if (new_state != gl->gl_target)
+ /* shorten our minimum hold time */
+ gl->gl_hold_time = max(gl->gl_hold_time - GL_GLOCK_HOLD_DECR,
+ GL_GLOCK_MIN_HOLD);
gl->gl_state = new_state;
gl->gl_tchange = jiffies;
}
@@ -663,20 +667,30 @@ static void glock_work_func(struct work_struct *work)
drop_ref = 1;
}
spin_lock(&gl->gl_spin);
- if (test_and_clear_bit(GLF_PENDING_DEMOTE, &gl->gl_flags) &&
+ if (test_bit(GLF_PENDING_DEMOTE, &gl->gl_flags) &&
gl->gl_state != LM_ST_UNLOCKED &&
gl->gl_demote_state != LM_ST_EXCLUSIVE) {
unsigned long holdtime, now = jiffies;
- holdtime = gl->gl_tchange + gl->gl_ops->go_min_hold_time;
+
+ holdtime = gl->gl_tchange + gl->gl_hold_time;
if (time_before(now, holdtime))
delay = holdtime - now;
- set_bit(delay ? GLF_PENDING_DEMOTE : GLF_DEMOTE, &gl->gl_flags);
+
+ if (!delay) {
+ clear_bit(GLF_PENDING_DEMOTE, &gl->gl_flags);
+ set_bit(GLF_DEMOTE, &gl->gl_flags);
+ }
}
run_queue(gl, 0);
spin_unlock(&gl->gl_spin);
- if (!delay ||
- queue_delayed_work(glock_workqueue, &gl->gl_work, delay) == 0)
+ if (!delay)
gfs2_glock_put(gl);
+ else {
+ if (gl->gl_name.ln_type != LM_TYPE_INODE)
+ delay = 0;
+ if (queue_delayed_work(glock_workqueue, &gl->gl_work, delay) == 0)
+ gfs2_glock_put(gl);
+ }
if (drop_ref)
gfs2_glock_put(gl);
}
@@ -738,6 +752,7 @@ int gfs2_glock_get(struct gfs2_sbd *sdp, u64 number,
gl->gl_tchange = jiffies;
gl->gl_object = NULL;
gl->gl_sbd = sdp;
+ gl->gl_hold_time = GL_GLOCK_DFT_HOLD;
INIT_DELAYED_WORK(&gl->gl_work, glock_work_func);
INIT_WORK(&gl->gl_delete, delete_work_func);
@@ -850,8 +865,15 @@ static int gfs2_glock_demote_wait(void *word)
static void wait_on_holder(struct gfs2_holder *gh)
{
+ unsigned long time1 = jiffies;
+
might_sleep();
wait_on_bit(&gh->gh_iflags, HIF_WAIT, gfs2_glock_holder_wait, TASK_UNINTERRUPTIBLE);
+ if (time_after(jiffies, time1 + HZ)) /* have we waited > a second? */
+ /* Lengthen the minimum hold time. */
+ gh->gh_gl->gl_hold_time = min(gh->gh_gl->gl_hold_time +
+ GL_GLOCK_HOLD_INCR,
+ GL_GLOCK_MAX_HOLD);
}
static void wait_on_demote(struct gfs2_glock *gl)
@@ -1088,8 +1110,9 @@ void gfs2_glock_dq(struct gfs2_holder *gh)
gfs2_glock_hold(gl);
if (test_bit(GLF_PENDING_DEMOTE, &gl->gl_flags) &&
- !test_bit(GLF_DEMOTE, &gl->gl_flags))
- delay = gl->gl_ops->go_min_hold_time;
+ !test_bit(GLF_DEMOTE, &gl->gl_flags) &&
+ gl->gl_name.ln_type == LM_TYPE_INODE)
+ delay = gl->gl_hold_time;
if (queue_delayed_work(glock_workqueue, &gl->gl_work, delay) == 0)
gfs2_glock_put(gl);
}
@@ -1268,12 +1291,13 @@ void gfs2_glock_cb(struct gfs2_glock *gl, unsigned int state)
unsigned long now = jiffies;
gfs2_glock_hold(gl);
- holdtime = gl->gl_tchange + gl->gl_ops->go_min_hold_time;
- if (test_bit(GLF_QUEUED, &gl->gl_flags)) {
+ holdtime = gl->gl_tchange + gl->gl_hold_time;
+ if (test_bit(GLF_QUEUED, &gl->gl_flags) &&
+ gl->gl_name.ln_type == LM_TYPE_INODE) {
if (time_before(now, holdtime))
delay = holdtime - now;
if (test_bit(GLF_REPLY_PENDING, &gl->gl_flags))
- delay = gl->gl_ops->go_min_hold_time;
+ delay = gl->gl_hold_time;
}
spin_lock(&gl->gl_spin);
@@ -1662,7 +1686,7 @@ static int __dump_glock(struct seq_file *seq, const struct gfs2_glock *gl)
dtime *= 1000000/HZ; /* demote time in uSec */
if (!test_bit(GLF_DEMOTE, &gl->gl_flags))
dtime = 0;
- gfs2_print_dbg(seq, "G: s:%s n:%u/%llx f:%s t:%s d:%s/%llu a:%d v:%d r:%d\n",
+ gfs2_print_dbg(seq, "G: s:%s n:%u/%llx f:%s t:%s d:%s/%llu a:%d v:%d r:%d m:%ld\n",
state2str(gl->gl_state),
gl->gl_name.ln_type,
(unsigned long long)gl->gl_name.ln_number,
@@ -1671,7 +1695,7 @@ static int __dump_glock(struct seq_file *seq, const struct gfs2_glock *gl)
state2str(gl->gl_demote_state), dtime,
atomic_read(&gl->gl_ail_count),
atomic_read(&gl->gl_revokes),
- atomic_read(&gl->gl_ref));
+ atomic_read(&gl->gl_ref), gl->gl_hold_time);
list_for_each_entry(gh, &gl->gl_holders, gh_list) {
error = dump_holder(seq, gh);
diff --git a/fs/gfs2/glock.h b/fs/gfs2/glock.h
index 6b2f757b928..66707118af2 100644
--- a/fs/gfs2/glock.h
+++ b/fs/gfs2/glock.h
@@ -113,6 +113,12 @@ enum {
#define GLR_TRYFAILED 13
+#define GL_GLOCK_MAX_HOLD (long)(HZ / 5)
+#define GL_GLOCK_DFT_HOLD (long)(HZ / 5)
+#define GL_GLOCK_MIN_HOLD (long)(10)
+#define GL_GLOCK_HOLD_INCR (long)(HZ / 20)
+#define GL_GLOCK_HOLD_DECR (long)(HZ / 40)
+
struct lm_lockops {
const char *lm_proto_name;
int (*lm_mount) (struct gfs2_sbd *sdp, const char *fsname);
diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c
index 8ef70f46473..da21ecaafcc 100644
--- a/fs/gfs2/glops.c
+++ b/fs/gfs2/glops.c
@@ -26,6 +26,7 @@
#include "rgrp.h"
#include "util.h"
#include "trans.h"
+#include "dir.h"
/**
* __gfs2_ail_flush - remove all buffers for a given lock from the AIL
@@ -47,10 +48,10 @@ static void __gfs2_ail_flush(struct gfs2_glock *gl)
bd_ail_gl_list);
bh = bd->bd_bh;
gfs2_remove_from_ail(bd);
- spin_unlock(&sdp->sd_ail_lock);
-
bd->bd_bh = NULL;
bh->b_private = NULL;
+ spin_unlock(&sdp->sd_ail_lock);
+
bd->bd_blkno = bh->b_blocknr;
gfs2_log_lock(sdp);
gfs2_assert_withdraw(sdp, !buffer_busy(bh));
@@ -218,11 +219,14 @@ static void inode_go_inval(struct gfs2_glock *gl, int flags)
if (ip) {
set_bit(GIF_INVALID, &ip->i_flags);
forget_all_cached_acls(&ip->i_inode);
+ gfs2_dir_hash_inval(ip);
}
}
- if (ip == GFS2_I(gl->gl_sbd->sd_rindex))
+ if (ip == GFS2_I(gl->gl_sbd->sd_rindex)) {
+ gfs2_log_flush(gl->gl_sbd, NULL);
gl->gl_sbd->sd_rindex_uptodate = 0;
+ }
if (ip && S_ISREG(ip->i_inode.i_mode))
truncate_inode_pages(ip->i_inode.i_mapping, 0);
}
@@ -314,6 +318,8 @@ static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
ip->i_generation = be64_to_cpu(str->di_generation);
ip->i_diskflags = be32_to_cpu(str->di_flags);
+ ip->i_eattr = be64_to_cpu(str->di_eattr);
+ /* i_diskflags and i_eattr must be set before gfs2_set_inode_flags() */
gfs2_set_inode_flags(&ip->i_inode);
height = be16_to_cpu(str->di_height);
if (unlikely(height > GFS2_MAX_META_HEIGHT))
@@ -326,7 +332,6 @@ static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
ip->i_depth = (u8)depth;
ip->i_entries = be32_to_cpu(str->di_entries);
- ip->i_eattr = be64_to_cpu(str->di_eattr);
if (S_ISREG(ip->i_inode.i_mode))
gfs2_set_aops(&ip->i_inode);
@@ -547,7 +552,6 @@ const struct gfs2_glock_operations gfs2_inode_glops = {
.go_lock = inode_go_lock,
.go_dump = inode_go_dump,
.go_type = LM_TYPE_INODE,
- .go_min_hold_time = HZ / 5,
.go_flags = GLOF_ASPACE,
};
@@ -558,7 +562,6 @@ const struct gfs2_glock_operations gfs2_rgrp_glops = {
.go_unlock = rgrp_go_unlock,
.go_dump = gfs2_rgrp_dump,
.go_type = LM_TYPE_RGRP,
- .go_min_hold_time = HZ / 5,
.go_flags = GLOF_ASPACE,
};
diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index 0a064e91ac7..892ac37de8a 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -17,6 +17,7 @@
#include <linux/buffer_head.h>
#include <linux/rcupdate.h>
#include <linux/rculist_bl.h>
+#include <linux/completion.h>
#define DIO_WAIT 0x00000010
#define DIO_METADATA 0x00000020
@@ -162,7 +163,6 @@ struct gfs2_glock_operations {
int (*go_dump)(struct seq_file *seq, const struct gfs2_glock *gl);
void (*go_callback) (struct gfs2_glock *gl);
const int go_type;
- const unsigned long go_min_hold_time;
const unsigned long go_flags;
#define GLOF_ASPACE 1
};
@@ -220,6 +220,7 @@ struct gfs2_glock {
unsigned int gl_hash;
unsigned long gl_demote_time; /* time of first demote request */
+ long gl_hold_time;
struct list_head gl_holders;
const struct gfs2_glock_operations *gl_ops;
@@ -284,6 +285,7 @@ struct gfs2_inode {
u64 i_goal; /* goal block for allocations */
struct rw_semaphore i_rw_mutex;
struct list_head i_trunc_list;
+ __be64 *i_hash_cache;
u32 i_entries;
u32 i_diskflags;
u8 i_height;
@@ -546,6 +548,7 @@ struct gfs2_sbd {
struct gfs2_glock *sd_trans_gl;
wait_queue_head_t sd_glock_wait;
atomic_t sd_glock_disposal;
+ struct completion sd_locking_init;
/* Inode Stuff */
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 03e0c529063..900cf986aad 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -307,7 +307,7 @@ struct inode *gfs2_lookupi(struct inode *dir, const struct qstr *name,
}
if (!is_root) {
- error = gfs2_permission(dir, MAY_EXEC, 0);
+ error = gfs2_permission(dir, MAY_EXEC);
if (error)
goto out;
}
@@ -337,7 +337,7 @@ static int create_ok(struct gfs2_inode *dip, const struct qstr *name,
{
int error;
- error = gfs2_permission(&dip->i_inode, MAY_WRITE | MAY_EXEC, 0);
+ error = gfs2_permission(&dip->i_inode, MAY_WRITE | MAY_EXEC);
if (error)
return error;
@@ -792,13 +792,8 @@ static int gfs2_create(struct inode *dir, struct dentry *dentry,
static struct dentry *gfs2_lookup(struct inode *dir, struct dentry *dentry,
struct nameidata *nd)
{
- struct inode *inode = NULL;
-
- inode = gfs2_lookupi(dir, &dentry->d_name, 0);
- if (inode && IS_ERR(inode))
- return ERR_CAST(inode);
-
- if (inode) {
+ struct inode *inode = gfs2_lookupi(dir, &dentry->d_name, 0);
+ if (inode && !IS_ERR(inode)) {
struct gfs2_glock *gl = GFS2_I(inode)->i_gl;
struct gfs2_holder gh;
int error;
@@ -808,11 +803,8 @@ static struct dentry *gfs2_lookup(struct inode *dir, struct dentry *dentry,
return ERR_PTR(error);
}
gfs2_glock_dq_uninit(&gh);
- return d_splice_alias(inode, dentry);
}
- d_add(dentry, inode);
-
- return NULL;
+ return d_splice_alias(inode, dentry);
}
/**
@@ -857,7 +849,7 @@ static int gfs2_link(struct dentry *old_dentry, struct inode *dir,
if (inode->i_nlink == 0)
goto out_gunlock;
- error = gfs2_permission(dir, MAY_WRITE | MAY_EXEC, 0);
+ error = gfs2_permission(dir, MAY_WRITE | MAY_EXEC);
if (error)
goto out_gunlock;
@@ -990,7 +982,7 @@ static int gfs2_unlink_ok(struct gfs2_inode *dip, const struct qstr *name,
if (IS_APPEND(&dip->i_inode))
return -EPERM;
- error = gfs2_permission(&dip->i_inode, MAY_WRITE | MAY_EXEC, 0);
+ error = gfs2_permission(&dip->i_inode, MAY_WRITE | MAY_EXEC);
if (error)
return error;
@@ -1336,7 +1328,7 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry,
}
}
} else {
- error = gfs2_permission(ndir, MAY_WRITE | MAY_EXEC, 0);
+ error = gfs2_permission(ndir, MAY_WRITE | MAY_EXEC);
if (error)
goto out_gunlock;
@@ -1371,7 +1363,7 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry,
/* Check out the dir to be renamed */
if (dir_rename) {
- error = gfs2_permission(odentry->d_inode, MAY_WRITE, 0);
+ error = gfs2_permission(odentry->d_inode, MAY_WRITE);
if (error)
goto out_gunlock;
}
@@ -1543,7 +1535,7 @@ static void gfs2_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
* Returns: errno
*/
-int gfs2_permission(struct inode *inode, int mask, unsigned int flags)
+int gfs2_permission(struct inode *inode, int mask)
{
struct gfs2_inode *ip;
struct gfs2_holder i_gh;
@@ -1553,7 +1545,7 @@ int gfs2_permission(struct inode *inode, int mask, unsigned int flags)
ip = GFS2_I(inode);
if (gfs2_glock_is_locked_by_me(ip->i_gl) == NULL) {
- if (flags & IPERM_FLAG_RCU)
+ if (mask & MAY_NOT_BLOCK)
return -ECHILD;
error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &i_gh);
if (error)
@@ -1564,7 +1556,7 @@ int gfs2_permission(struct inode *inode, int mask, unsigned int flags)
if ((mask & MAY_WRITE) && IS_IMMUTABLE(inode))
error = -EACCES;
else
- error = generic_permission(inode, mask, flags, gfs2_check_acl);
+ error = generic_permission(inode, mask);
if (unlock)
gfs2_glock_dq_uninit(&i_gh);
@@ -1854,6 +1846,7 @@ const struct inode_operations gfs2_file_iops = {
.listxattr = gfs2_listxattr,
.removexattr = gfs2_removexattr,
.fiemap = gfs2_fiemap,
+ .get_acl = gfs2_get_acl,
};
const struct inode_operations gfs2_dir_iops = {
@@ -1874,6 +1867,7 @@ const struct inode_operations gfs2_dir_iops = {
.listxattr = gfs2_listxattr,
.removexattr = gfs2_removexattr,
.fiemap = gfs2_fiemap,
+ .get_acl = gfs2_get_acl,
};
const struct inode_operations gfs2_symlink_iops = {
@@ -1888,5 +1882,6 @@ const struct inode_operations gfs2_symlink_iops = {
.listxattr = gfs2_listxattr,
.removexattr = gfs2_removexattr,
.fiemap = gfs2_fiemap,
+ .get_acl = gfs2_get_acl,
};
diff --git a/fs/gfs2/inode.h b/fs/gfs2/inode.h
index 31606076f70..8d90e0c0767 100644
--- a/fs/gfs2/inode.h
+++ b/fs/gfs2/inode.h
@@ -108,7 +108,7 @@ extern int gfs2_inode_refresh(struct gfs2_inode *ip);
extern struct inode *gfs2_lookupi(struct inode *dir, const struct qstr *name,
int is_root);
-extern int gfs2_permission(struct inode *inode, int mask, unsigned int flags);
+extern int gfs2_permission(struct inode *inode, int mask);
extern int gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr);
extern struct inode *gfs2_lookup_simple(struct inode *dip, const char *name);
extern void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf);
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index 903115f2bb3..85c62923ee2 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -903,6 +903,7 @@ void gfs2_meta_syncfs(struct gfs2_sbd *sdp)
if (gfs2_ail1_empty(sdp))
break;
}
+ gfs2_log_flush(sdp, NULL);
}
static inline int gfs2_jrnl_flush_reqd(struct gfs2_sbd *sdp)
diff --git a/fs/gfs2/main.c b/fs/gfs2/main.c
index c2b34cd2abe..29e1ace7953 100644
--- a/fs/gfs2/main.c
+++ b/fs/gfs2/main.c
@@ -41,6 +41,7 @@ static void gfs2_init_inode_once(void *foo)
init_rwsem(&ip->i_rw_mutex);
INIT_LIST_HEAD(&ip->i_trunc_list);
ip->i_alloc = NULL;
+ ip->i_hash_cache = NULL;
}
static void gfs2_init_glock_once(void *foo)
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index 8ac9ae189b5..516516e0c2a 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -72,6 +72,7 @@ static struct gfs2_sbd *init_sbd(struct super_block *sb)
init_waitqueue_head(&sdp->sd_glock_wait);
atomic_set(&sdp->sd_glock_disposal, 0);
+ init_completion(&sdp->sd_locking_init);
spin_lock_init(&sdp->sd_statfs_spin);
spin_lock_init(&sdp->sd_rindex_spin);
@@ -1017,11 +1018,13 @@ hostdata_error:
fsname++;
if (lm->lm_mount == NULL) {
fs_info(sdp, "Now mounting FS...\n");
+ complete(&sdp->sd_locking_init);
return 0;
}
ret = lm->lm_mount(sdp, fsname);
if (ret == 0)
fs_info(sdp, "Joined cluster. Now mounting FS...\n");
+ complete(&sdp->sd_locking_init);
return ret;
}
@@ -1091,6 +1094,7 @@ static int fill_super(struct super_block *sb, struct gfs2_args *args, int silent
if (sdp->sd_args.ar_nobarrier)
set_bit(SDF_NOBARRIERS, &sdp->sd_flags);
+ sb->s_flags |= MS_NOSEC;
sb->s_magic = GFS2_MAGIC;
sb->s_op = &gfs2_super_ops;
sb->s_d_op = &gfs2_dops;
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 9b780df3fd5..7f8af1eb02d 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -1607,14 +1607,15 @@ rgrp_error:
}
/**
- * gfs2_free_data - free a contiguous run of data block(s)
+ * __gfs2_free_blocks - free a contiguous run of block(s)
* @ip: the inode these blocks are being freed from
* @bstart: first block of a run of contiguous blocks
* @blen: the length of the block run
+ * @meta: 1 if the blocks represent metadata
*
*/
-void __gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen)
+void __gfs2_free_blocks(struct gfs2_inode *ip, u64 bstart, u32 blen, int meta)
{
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
struct gfs2_rgrpd *rgd;
@@ -1631,54 +1632,11 @@ void __gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen)
gfs2_trans_add_rg(rgd);
/* Directories keep their data in the metadata address space */
- if (ip->i_depth)
+ if (meta || ip->i_depth)
gfs2_meta_wipe(ip, bstart, blen);
}
/**
- * gfs2_free_data - free a contiguous run of data block(s)
- * @ip: the inode these blocks are being freed from
- * @bstart: first block of a run of contiguous blocks
- * @blen: the length of the block run
- *
- */
-
-void gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen)
-{
- struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
-
- __gfs2_free_data(ip, bstart, blen);
- gfs2_statfs_change(sdp, 0, +blen, 0);
- gfs2_quota_change(ip, -(s64)blen, ip->i_inode.i_uid, ip->i_inode.i_gid);
-}
-
-/**
- * gfs2_free_meta - free a contiguous run of data block(s)
- * @ip: the inode these blocks are being freed from
- * @bstart: first block of a run of contiguous blocks
- * @blen: the length of the block run
- *
- */
-
-void __gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen)
-{
- struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
- struct gfs2_rgrpd *rgd;
-
- rgd = rgblk_free(sdp, bstart, blen, GFS2_BLKST_FREE);
- if (!rgd)
- return;
- trace_gfs2_block_alloc(ip, bstart, blen, GFS2_BLKST_FREE);
- rgd->rd_free += blen;
-
- gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1);
- gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data);
-
- gfs2_trans_add_rg(rgd);
- gfs2_meta_wipe(ip, bstart, blen);
-}
-
-/**
* gfs2_free_meta - free a contiguous run of data block(s)
* @ip: the inode these blocks are being freed from
* @bstart: first block of a run of contiguous blocks
@@ -1690,7 +1648,7 @@ void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen)
{
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
- __gfs2_free_meta(ip, bstart, blen);
+ __gfs2_free_blocks(ip, bstart, blen, 1);
gfs2_statfs_change(sdp, 0, +blen, 0);
gfs2_quota_change(ip, -(s64)blen, ip->i_inode.i_uid, ip->i_inode.i_gid);
}
diff --git a/fs/gfs2/rgrp.h b/fs/gfs2/rgrp.h
index a80e3034ac4..d253f9a8c70 100644
--- a/fs/gfs2/rgrp.h
+++ b/fs/gfs2/rgrp.h
@@ -52,9 +52,7 @@ extern int gfs2_ri_update(struct gfs2_inode *ip);
extern int gfs2_alloc_block(struct gfs2_inode *ip, u64 *bn, unsigned int *n);
extern int gfs2_alloc_di(struct gfs2_inode *ip, u64 *bn, u64 *generation);
-extern void __gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen);
-extern void gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen);
-extern void __gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen);
+extern void __gfs2_free_blocks(struct gfs2_inode *ip, u64 bstart, u32 blen, int meta);
extern void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen);
extern void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip);
extern void gfs2_unlink_di(struct inode *inode);
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index ed540e7018b..b7beadd9ba4 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -757,13 +757,17 @@ static int gfs2_write_inode(struct inode *inode, struct writeback_control *wbc)
struct timespec atime;
struct gfs2_dinode *di;
int ret = -EAGAIN;
+ int unlock_required = 0;
/* Skip timestamp update, if this is from a memalloc */
if (current->flags & PF_MEMALLOC)
goto do_flush;
- ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
- if (ret)
- goto do_flush;
+ if (!gfs2_glock_is_locked_by_me(ip->i_gl)) {
+ ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
+ if (ret)
+ goto do_flush;
+ unlock_required = 1;
+ }
ret = gfs2_trans_begin(sdp, RES_DINODE, 0);
if (ret)
goto do_unlock;
@@ -780,7 +784,8 @@ static int gfs2_write_inode(struct inode *inode, struct writeback_control *wbc)
}
gfs2_trans_end(sdp);
do_unlock:
- gfs2_glock_dq_uninit(&gh);
+ if (unlock_required)
+ gfs2_glock_dq_uninit(&gh);
do_flush:
if (wbc->sync_mode == WB_SYNC_ALL)
gfs2_log_flush(GFS2_SB(inode), ip->i_gl);
@@ -1427,7 +1432,20 @@ out:
return error;
}
-/*
+/**
+ * gfs2_evict_inode - Remove an inode from cache
+ * @inode: The inode to evict
+ *
+ * There are three cases to consider:
+ * 1. i_nlink == 0, we are final opener (and must deallocate)
+ * 2. i_nlink == 0, we are not the final opener (and cannot deallocate)
+ * 3. i_nlink > 0
+ *
+ * If the fs is read only, then we have to treat all cases as per #3
+ * since we are unable to do any deallocation. The inode will be
+ * deallocated by the next read/write node to attempt an allocation
+ * in the same resource group
+ *
* We have to (at the moment) hold the inodes main lock to cover
* the gap between unlocking the shared lock on the iopen lock and
* taking the exclusive lock. I'd rather do a shared -> exclusive
@@ -1470,6 +1488,8 @@ static void gfs2_evict_inode(struct inode *inode)
if (error)
goto out_truncate;
+ /* Case 1 starts here */
+
if (S_ISDIR(inode->i_mode) &&
(ip->i_diskflags & GFS2_DIF_EXHASH)) {
error = gfs2_dir_exhash_dealloc(ip);
@@ -1493,13 +1513,16 @@ static void gfs2_evict_inode(struct inode *inode)
goto out_unlock;
out_truncate:
+ /* Case 2 starts here */
error = gfs2_trans_begin(sdp, 0, sdp->sd_jdesc->jd_blocks);
if (error)
goto out_unlock;
- gfs2_final_release_pages(ip);
+ /* Needs to be done before glock release & also in a transaction */
+ truncate_inode_pages(&inode->i_data, 0);
gfs2_trans_end(sdp);
out_unlock:
+ /* Error path for case 1 */
if (test_bit(HIF_HOLDER, &ip->i_iopen_gh.gh_iflags))
gfs2_glock_dq(&ip->i_iopen_gh);
gfs2_holder_uninit(&ip->i_iopen_gh);
@@ -1507,9 +1530,10 @@ out_unlock:
if (error && error != GLR_TRYFAILED && error != -EROFS)
fs_warn(sdp, "gfs2_evict_inode: %d\n", error);
out:
+ /* Case 3 starts here */
truncate_inode_pages(&inode->i_data, 0);
end_writeback(inode);
-
+ gfs2_dir_hash_inval(ip);
ip->i_gl->gl_object = NULL;
gfs2_glock_add_to_lru(ip->i_gl);
gfs2_glock_put(ip->i_gl);
diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c
index e20eab37bc8..443cabcfcd2 100644
--- a/fs/gfs2/sys.c
+++ b/fs/gfs2/sys.c
@@ -338,6 +338,9 @@ static ssize_t lkfirst_store(struct gfs2_sbd *sdp, const char *buf, size_t len)
rv = sscanf(buf, "%u", &first);
if (rv != 1 || first > 1)
return -EINVAL;
+ rv = wait_for_completion_killable(&sdp->sd_locking_init);
+ if (rv)
+ return rv;
spin_lock(&sdp->sd_jindex_spin);
rv = -EBUSY;
if (test_bit(SDF_NOJOURNALID, &sdp->sd_flags) == 0)
@@ -414,7 +417,9 @@ static ssize_t jid_store(struct gfs2_sbd *sdp, const char *buf, size_t len)
rv = sscanf(buf, "%d", &jid);
if (rv != 1)
return -EINVAL;
-
+ rv = wait_for_completion_killable(&sdp->sd_locking_init);
+ if (rv)
+ return rv;
spin_lock(&sdp->sd_jindex_spin);
rv = -EINVAL;
if (sdp->sd_lockstruct.ls_ops->lm_mount == NULL)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-19 00:31:55 +0000