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authorJan Kara <jack@suse.cz>2008-04-28 02:16:13 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-28 08:58:45 -0700
commit07c9938a4e2c92b796b163dc70e99d3d1870aaee (patch)
treeefdde08f88994f0c966781be5574adf8ea83d952
parent0b23076988b44b2c165e060248345de6f2337387 (diff)
ext3: fix hang on umount with quotas when journal is aborted
Call dquot_drop() from ext3_dquot_drop() even if we fail to start a transaction. Otherwise we never get to dropping references to quota structures from the inode and umount will hang indefinitely. Thanks to Payphone LIOU for spotting the problem. Signed-off-by: Jan Kara <jack@suse.cz> Cc: Payphone LIOU <lioupayphone@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--fs/ext3/super.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 770bbb4fa58..03d5c626c1c 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -2639,8 +2639,14 @@ static int ext3_dquot_drop(struct inode *inode)
/* We may delete quota structure so we need to reserve enough blocks */
handle = ext3_journal_start(inode, 2*EXT3_QUOTA_DEL_BLOCKS(inode->i_sb));
- if (IS_ERR(handle))
+ if (IS_ERR(handle)) {
+ /*
+ * We call dquot_drop() anyway to at least release references
+ * to quota structures so that umount does not hang.
+ */
+ dquot_drop(inode);
return PTR_ERR(handle);
+ }
ret = dquot_drop(inode);
err = ext3_journal_stop(handle);
if (!ret)