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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-07-08 09:35:50 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-07-08 09:35:50 -0700 |
| commit | 728b690fd5c185c639a5db0819bd6e0385b14188 (patch) | |
| tree | ee5d5c9791a88bfe71bba747979d05af7bd28090 | |
| parent | ed7ba2ef09254b2fd9698708b407f4652d26e36a (diff) | |
| parent | d01730d74d2b0155da50d44555001706294014f7 (diff) | |
| download | linux-3.10-728b690fd5c185c639a5db0819bd6e0385b14188.tar.gz linux-3.10-728b690fd5c185c639a5db0819bd6e0385b14188.tar.bz2 linux-3.10-728b690fd5c185c639a5db0819bd6e0385b14188.zip | |
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-quota-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-quota-2.6:
quota: Fix possible deadlock during parallel quotaon and quotaoff
| -rw-r--r-- | fs/quota/dquot.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c index 607c579e5ec..70f36c043d6 100644 --- a/fs/quota/dquot.c +++ b/fs/quota/dquot.c @@ -2042,8 +2042,8 @@ static int vfs_load_quota_inode(struct inode *inode, int type, int format_id, * changes */ invalidate_bdev(sb->s_bdev); } - mutex_lock(&inode->i_mutex); mutex_lock(&dqopt->dqonoff_mutex); + mutex_lock_nested(&inode->i_mutex, I_MUTEX_QUOTA); if (sb_has_quota_loaded(sb, type)) { error = -EBUSY; goto out_lock; @@ -2094,7 +2094,6 @@ out_file_init: dqopt->files[type] = NULL; iput(inode); out_lock: - mutex_unlock(&dqopt->dqonoff_mutex); if (oldflags != -1) { down_write(&dqopt->dqptr_sem); /* Set the flags back (in the case of accidental quotaon() @@ -2104,6 +2103,7 @@ out_lock: up_write(&dqopt->dqptr_sem); } mutex_unlock(&inode->i_mutex); + mutex_unlock(&dqopt->dqonoff_mutex); out_fmt: put_quota_format(fmt); |