diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-14 20:30:54 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-14 20:30:54 +0400 |
| commit | b973425cbb51e08301b34fecdfd476a44507d8cf (patch) | |
| tree | 689cfb1e5bb3064f4fad6b381bb208c3ed54cf64 /include/linux | |
| parent | 7fb30d2b606beb78cda805647faf4d3cdfb39c42 (diff) | |
| parent | e2555fde4159467fb579e6ae3c0a8fc33015d0f5 (diff) | |
| download | linux-b973425cbb51e08301b34fecdfd476a44507d8cf.tar.xz | |
Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 update from Ted Ts'o:
"Fixed regressions (two stability regressions and a performance
regression) introduced during the 3.10-rc1 merge window.
Also included is a bug fix relating to allocating blocks after
resizing an ext3 file system when using the ext4 file system driver"
* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
jbd,jbd2: fix oops in jbd2_journal_put_journal_head()
ext4: revert "ext4: use io_end for multiple bios"
ext4: limit group search loop for non-extent files
ext4: fix fio regression
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/journal-head.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/include/linux/journal-head.h b/include/linux/journal-head.h index 13a3da25ff07..98cd41bb39c8 100644 --- a/include/linux/journal-head.h +++ b/include/linux/journal-head.h @@ -30,15 +30,19 @@ struct journal_head { /* * Journalling list for this buffer [jbd_lock_bh_state()] + * NOTE: We *cannot* combine this with b_modified into a bitfield + * as gcc would then (which the C standard allows but which is + * very unuseful) make 64-bit accesses to the bitfield and clobber + * b_jcount if its update races with bitfield modification. */ - unsigned b_jlist:4; + unsigned b_jlist; /* * This flag signals the buffer has been modified by * the currently running transaction * [jbd_lock_bh_state()] */ - unsigned b_modified:1; + unsigned b_modified; /* * Copy of the buffer data frozen for writing to the log. |