diff options
| author | Jan Kara <jack@suse.cz> | 2013-05-13 09:45:01 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2013-05-13 09:45:01 -0400 |
| commit | e2555fde4159467fb579e6ae3c0a8fc33015d0f5 (patch) | |
| tree | aacf8fc79d3180a2bd2bf265f1fb362e7b2b4c50 /fs/ext4/mballoc.c | |
| parent | a549984b8c95acbecefd1fdd4bfdbea4d29b0588 (diff) | |
| download | blackbird-op-linux-e2555fde4159467fb579e6ae3c0a8fc33015d0f5.tar.gz blackbird-op-linux-e2555fde4159467fb579e6ae3c0a8fc33015d0f5.zip | |
jbd,jbd2: fix oops in jbd2_journal_put_journal_head()
Commit ae4647fb (jbd2: reduce journal_head size) introduced a
regression where we occasionally hit panic in
jbd2_journal_put_journal_head() because of wrong b_jcount. The bug is
caused by gcc making 64-bit access to 32-bit bitfield and thus
clobbering b_jcount.
At least for now, those 8 bytes saved in struct journal_head are not
worth the trouble with gcc bitfield handling so revert that part of
the patch.
Reported-by: EUNBONG SONG <eunb.song@samsung.com>
Reported-by: Tony Luck <tony.luck@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/mballoc.c')
0 files changed, 0 insertions, 0 deletions
