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Old 04-19-2011, 08:40 AM
Steven Whitehouse
Default GFS2: write_end error path fails to unlock transaction lock

From: Bob Peterson <rpeterso@redhat.com>

I did an audit of gfs2's transaction glock for bugzilla bug
658619 and ran across this:

In function gfs2_write_end, in the unlikely event that
gfs2_meta_inode_buffer returns an error, the code may forget
to unlock the transaction lock because the "failed" label
appears after the call to function gfs2_trans_end.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c
index c71995b..0f5c4f9 100644
--- a/fs/gfs2/aops.c
+++ b/fs/gfs2/aops.c
@@ -884,8 +884,8 @@ static int gfs2_write_end(struct file *file, struct address_space *mapping,

- gfs2_trans_end(sdp);
+ gfs2_trans_end(sdp);
if (al) {

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