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-rw-r--r--fs/ext2/balloc.c9
-rw-r--r--fs/ext2/inode.c7
-rw-r--r--fs/ext2/ioctl.c5
-rw-r--r--fs/ocfs2/quota_global.c2
-rw-r--r--fs/quota/dquot.c19
-rw-r--r--fs/quota/quota.c7
-rw-r--r--fs/quota/quota_v1.c1
-rw-r--r--fs/reiserfs/file.c10
-rw-r--r--fs/reiserfs/inode.c12
-rw-r--r--fs/reiserfs/namei.c7
-rw-r--r--fs/reiserfs/reiserfs.h2
-rw-r--r--fs/reiserfs/super.c2
-rw-r--r--fs/reiserfs/xattr.c19
-rw-r--r--fs/reiserfs/xattr_acl.c4
-rw-r--r--include/linux/quotaops.h10
15 files changed, 72 insertions, 44 deletions
diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c
index e0cc55164505..19bce75d207b 100644
--- a/fs/ext2/balloc.c
+++ b/fs/ext2/balloc.c
@@ -736,7 +736,6 @@ repeat:
*count = num;
return grp_goal - num;
fail_access:
- *count = num;
return -1;
}
@@ -1313,6 +1312,13 @@ retry_alloc:
if (free_blocks > 0) {
grp_target_blk = ((goal - le32_to_cpu(es->s_first_data_block)) %
EXT2_BLOCKS_PER_GROUP(sb));
+ /*
+ * In case we retry allocation (due to fs reservation not
+ * working out or fs corruption), the bitmap_bh is non-null
+ * pointer and we have to release it before calling
+ * read_block_bitmap().
+ */
+ brelse(bitmap_bh);
bitmap_bh = read_block_bitmap(sb, group_no);
if (!bitmap_bh)
goto io_error;
@@ -1404,6 +1410,7 @@ allocated:
* use. So we may want to selectively mark some of the blocks
* as free
*/
+ num = *count;
goto retry_alloc;
}
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index 7004ce581a32..a16c53655e77 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -701,10 +701,13 @@ static int ext2_get_blocks(struct inode *inode,
if (!partial) {
count++;
mutex_unlock(&ei->truncate_mutex);
- if (err)
- goto cleanup;
goto got_it;
}
+
+ if (err) {
+ mutex_unlock(&ei->truncate_mutex);
+ goto cleanup;
+ }
}
/*
diff --git a/fs/ext2/ioctl.c b/fs/ext2/ioctl.c
index 1b853fb0b163..32a8d10b579d 100644
--- a/fs/ext2/ioctl.c
+++ b/fs/ext2/ioctl.c
@@ -145,10 +145,13 @@ setversion_out:
if (ei->i_block_alloc_info){
struct ext2_reserve_window_node *rsv = &ei->i_block_alloc_info->rsv_window_node;
rsv->rsv_goal_size = rsv_window_size;
+ } else {
+ ret = -ENOMEM;
}
+
mutex_unlock(&ei->truncate_mutex);
mnt_drop_write_file(filp);
- return 0;
+ return ret;
}
default:
return -ENOTTY;
diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c
index 7a922190a8c7..eda83487c9ec 100644
--- a/fs/ocfs2/quota_global.c
+++ b/fs/ocfs2/quota_global.c
@@ -728,7 +728,7 @@ static int ocfs2_release_dquot(struct dquot *dquot)
mutex_lock(&dquot->dq_lock);
/* Check whether we are not racing with some other dqget() */
- if (atomic_read(&dquot->dq_count) > 1)
+ if (dquot_is_busy(dquot))
goto out;
/* Running from downconvert thread? Postpone quota processing to wq */
if (current == osb->dc_task) {
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index a69a657209a6..54a6626c2e9b 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -497,7 +497,7 @@ int dquot_release(struct dquot *dquot)
mutex_lock(&dquot->dq_lock);
/* Check whether we are not racing with some other dqget() */
- if (atomic_read(&dquot->dq_count) > 1)
+ if (dquot_is_busy(dquot))
goto out_dqlock;
if (dqopt->ops[dquot->dq_id.type]->release_dqblk) {
ret = dqopt->ops[dquot->dq_id.type]->release_dqblk(dquot);
@@ -595,7 +595,6 @@ int dquot_scan_active(struct super_block *sb,
/* Now we have active dquot so we can just increase use count */
atomic_inc(&dquot->dq_count);
spin_unlock(&dq_list_lock);
- dqstats_inc(DQST_LOOKUPS);
dqput(old_dquot);
old_dquot = dquot;
/*
@@ -623,7 +622,7 @@ EXPORT_SYMBOL(dquot_scan_active);
/* Write all dquot structures to quota files */
int dquot_writeback_dquots(struct super_block *sb, int type)
{
- struct list_head *dirty;
+ struct list_head dirty;
struct dquot *dquot;
struct quota_info *dqopt = sb_dqopt(sb);
int cnt;
@@ -637,9 +636,10 @@ int dquot_writeback_dquots(struct super_block *sb, int type)
if (!sb_has_quota_active(sb, cnt))
continue;
spin_lock(&dq_list_lock);
- dirty = &dqopt->info[cnt].dqi_dirty_list;
- while (!list_empty(dirty)) {
- dquot = list_first_entry(dirty, struct dquot,
+ /* Move list away to avoid livelock. */
+ list_replace_init(&dqopt->info[cnt].dqi_dirty_list, &dirty);
+ while (!list_empty(&dirty)) {
+ dquot = list_first_entry(&dirty, struct dquot,
dq_dirty);
WARN_ON(!test_bit(DQ_ACTIVE_B, &dquot->dq_flags));
@@ -649,7 +649,6 @@ int dquot_writeback_dquots(struct super_block *sb, int type)
* use count */
dqgrab(dquot);
spin_unlock(&dq_list_lock);
- dqstats_inc(DQST_LOOKUPS);
err = sb->dq_op->write_dquot(dquot);
if (err) {
/*
@@ -2972,11 +2971,7 @@ static int __init dquot_init(void)
/* Find power-of-two hlist_heads which can fit into allocation */
nr_hash = (1UL << order) * PAGE_SIZE / sizeof(struct hlist_head);
- dq_hash_bits = 0;
- do {
- dq_hash_bits++;
- } while (nr_hash >> dq_hash_bits);
- dq_hash_bits--;
+ dq_hash_bits = ilog2(nr_hash);
nr_hash = 1UL << dq_hash_bits;
dq_hash_mask = nr_hash - 1;
diff --git a/fs/quota/quota.c b/fs/quota/quota.c
index cb13fb76dbee..5444d3c4d93f 100644
--- a/fs/quota/quota.c
+++ b/fs/quota/quota.c
@@ -60,8 +60,6 @@ static int quota_sync_all(int type)
{
int ret;
- if (type >= MAXQUOTAS)
- return -EINVAL;
ret = security_quotactl(Q_SYNC, type, 0, NULL);
if (!ret)
iterate_supers(quota_sync_one, &type);
@@ -686,8 +684,6 @@ static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id,
{
int ret;
- if (type >= MAXQUOTAS)
- return -EINVAL;
type = array_index_nospec(type, MAXQUOTAS);
/*
* Quota not supported on this fs? Check this before s_quota_types
@@ -831,6 +827,9 @@ int kernel_quotactl(unsigned int cmd, const char __user *special,
cmds = cmd >> SUBCMDSHIFT;
type = cmd & SUBCMDMASK;
+ if (type >= MAXQUOTAS)
+ return -EINVAL;
+
/*
* As a special case Q_SYNC can be called without a specific device.
* It will iterate all superblocks that have quota enabled and call
diff --git a/fs/quota/quota_v1.c b/fs/quota/quota_v1.c
index c740e5572eb8..cd92e5fa0062 100644
--- a/fs/quota/quota_v1.c
+++ b/fs/quota/quota_v1.c
@@ -217,7 +217,6 @@ static const struct quota_format_ops v1_format_ops = {
.check_quota_file = v1_check_quota_file,
.read_file_info = v1_read_file_info,
.write_file_info = v1_write_file_info,
- .free_file_info = NULL,
.read_dqblk = v1_read_dqblk,
.commit_dqblk = v1_commit_dqblk,
};
diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c
index 843aadcc123c..84cf8bdbec9c 100644
--- a/fs/reiserfs/file.c
+++ b/fs/reiserfs/file.c
@@ -38,16 +38,10 @@ static int reiserfs_file_release(struct inode *inode, struct file *filp)
BUG_ON(!S_ISREG(inode->i_mode));
- if (atomic_add_unless(&REISERFS_I(inode)->openers, -1, 1))
+ if (!atomic_dec_and_mutex_lock(&REISERFS_I(inode)->openers,
+ &REISERFS_I(inode)->tailpack))
return 0;
- mutex_lock(&REISERFS_I(inode)->tailpack);
-
- if (!atomic_dec_and_test(&REISERFS_I(inode)->openers)) {
- mutex_unlock(&REISERFS_I(inode)->tailpack);
- return 0;
- }
-
/* fast out for when nothing needs to be done */
if ((!(REISERFS_I(inode)->i_flags & i_pack_on_close_mask) ||
!tail_has_to_be_packed(inode)) &&
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 132ec4406ed0..6419e6dacc39 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -2097,6 +2097,15 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
goto out_inserted_sd;
}
+ /*
+ * Mark it private if we're creating the privroot
+ * or something under it.
+ */
+ if (IS_PRIVATE(dir) || dentry == REISERFS_SB(sb)->priv_root) {
+ inode->i_flags |= S_PRIVATE;
+ inode->i_opflags &= ~IOP_XATTR;
+ }
+
if (reiserfs_posixacl(inode->i_sb)) {
reiserfs_write_unlock(inode->i_sb);
retval = reiserfs_inherit_default_acl(th, dir, dentry, inode);
@@ -2111,8 +2120,7 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
reiserfs_warning(inode->i_sb, "jdm-13090",
"ACLs aren't enabled in the fs, "
"but vfs thinks they are!");
- } else if (IS_PRIVATE(dir))
- inode->i_flags |= S_PRIVATE;
+ }
if (security->name) {
reiserfs_write_unlock(inode->i_sb);
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index 97f3fc4fdd79..959a066b7bb0 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -377,10 +377,13 @@ static struct dentry *reiserfs_lookup(struct inode *dir, struct dentry *dentry,
/*
* Propagate the private flag so we know we're
- * in the priv tree
+ * in the priv tree. Also clear IOP_XATTR
+ * since we don't have xattrs on xattr files.
*/
- if (IS_PRIVATE(dir))
+ if (IS_PRIVATE(dir)) {
inode->i_flags |= S_PRIVATE;
+ inode->i_opflags &= ~IOP_XATTR;
+ }
}
reiserfs_write_unlock(dir->i_sb);
if (retval == IO_ERROR) {
diff --git a/fs/reiserfs/reiserfs.h b/fs/reiserfs/reiserfs.h
index e5ca9ed79e54..726580114d55 100644
--- a/fs/reiserfs/reiserfs.h
+++ b/fs/reiserfs/reiserfs.h
@@ -1168,6 +1168,8 @@ static inline int bmap_would_wrap(unsigned bmap_nr)
return bmap_nr > ((1LL << 16) - 1);
}
+extern const struct xattr_handler *reiserfs_xattr_handlers[];
+
/*
* this says about version of key of all items (but stat data) the
* object consists of
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index d69b4ac0ae2f..3244037b1286 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -2049,6 +2049,8 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
if (replay_only(s))
goto error_unlocked;
+ s->s_xattr = reiserfs_xattr_handlers;
+
if (bdev_read_only(s->s_bdev) && !sb_rdonly(s)) {
SWARN(silent, s, "clm-7000",
"Detected readonly device, marking FS readonly");
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index b5b26d8a192c..62b40df36c98 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -122,13 +122,13 @@ static struct dentry *open_xa_root(struct super_block *sb, int flags)
struct dentry *xaroot;
if (d_really_is_negative(privroot))
- return ERR_PTR(-ENODATA);
+ return ERR_PTR(-EOPNOTSUPP);
inode_lock_nested(d_inode(privroot), I_MUTEX_XATTR);
xaroot = dget(REISERFS_SB(sb)->xattr_root);
if (!xaroot)
- xaroot = ERR_PTR(-ENODATA);
+ xaroot = ERR_PTR(-EOPNOTSUPP);
else if (d_really_is_negative(xaroot)) {
int err = -ENODATA;
@@ -619,6 +619,10 @@ int reiserfs_xattr_set(struct inode *inode, const char *name,
int error, error2;
size_t jbegin_count = reiserfs_xattr_nblocks(inode, buffer_size);
+ /* Check before we start a transaction and then do nothing. */
+ if (!d_really_is_positive(REISERFS_SB(inode->i_sb)->priv_root))
+ return -EOPNOTSUPP;
+
if (!(flags & XATTR_REPLACE))
jbegin_count += reiserfs_xattr_jcreate_nblocks(inode);
@@ -841,8 +845,7 @@ ssize_t reiserfs_listxattr(struct dentry * dentry, char *buffer, size_t size)
if (d_really_is_negative(dentry))
return -EINVAL;
- if (!dentry->d_sb->s_xattr ||
- get_inode_sd_version(d_inode(dentry)) == STAT_DATA_V1)
+ if (get_inode_sd_version(d_inode(dentry)) == STAT_DATA_V1)
return -EOPNOTSUPP;
dir = open_xa_dir(d_inode(dentry), XATTR_REPLACE);
@@ -882,6 +885,7 @@ static int create_privroot(struct dentry *dentry)
}
d_inode(dentry)->i_flags |= S_PRIVATE;
+ d_inode(dentry)->i_opflags &= ~IOP_XATTR;
reiserfs_info(dentry->d_sb, "Created %s - reserved for xattr "
"storage.\n", PRIVROOT_NAME);
@@ -895,7 +899,7 @@ static int create_privroot(struct dentry *dentry) { return 0; }
#endif
/* Actual operations that are exported to VFS-land */
-static const struct xattr_handler *reiserfs_xattr_handlers[] = {
+const struct xattr_handler *reiserfs_xattr_handlers[] = {
#ifdef CONFIG_REISERFS_FS_XATTR
&reiserfs_xattr_user_handler,
&reiserfs_xattr_trusted_handler,
@@ -966,8 +970,10 @@ int reiserfs_lookup_privroot(struct super_block *s)
if (!IS_ERR(dentry)) {
REISERFS_SB(s)->priv_root = dentry;
d_set_d_op(dentry, &xattr_lookup_poison_ops);
- if (d_really_is_positive(dentry))
+ if (d_really_is_positive(dentry)) {
d_inode(dentry)->i_flags |= S_PRIVATE;
+ d_inode(dentry)->i_opflags &= ~IOP_XATTR;
+ }
} else
err = PTR_ERR(dentry);
inode_unlock(d_inode(s->s_root));
@@ -996,7 +1002,6 @@ int reiserfs_xattr_init(struct super_block *s, int mount_flags)
}
if (d_really_is_positive(privroot)) {
- s->s_xattr = reiserfs_xattr_handlers;
inode_lock(d_inode(privroot));
if (!REISERFS_SB(s)->xattr_root) {
struct dentry *dentry;
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index aa9380bac196..05f666794561 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -320,10 +320,8 @@ reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
* would be useless since permissions are ignored, and a pain because
* it introduces locking cycles
*/
- if (IS_PRIVATE(dir)) {
- inode->i_flags |= S_PRIVATE;
+ if (IS_PRIVATE(inode))
goto apply_umask;
- }
err = posix_acl_create(dir, &inode->i_mode, &default_acl, &acl);
if (err)
diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index 6b8ebc8d715e..9cf0cd3dc88c 100644
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -54,6 +54,16 @@ static inline struct dquot *dqgrab(struct dquot *dquot)
atomic_inc(&dquot->dq_count);
return dquot;
}
+
+static inline bool dquot_is_busy(struct dquot *dquot)
+{
+ if (test_bit(DQ_MOD_B, &dquot->dq_flags))
+ return true;
+ if (atomic_read(&dquot->dq_count) > 1)
+ return true;
+ return false;
+}
+
void dqput(struct dquot *dquot);
int dquot_scan_active(struct super_block *sb,
int (*fn)(struct dquot *dquot, unsigned long priv),
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