diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-05-27 06:00:52 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-05-27 06:00:52 +0400 |
| commit | 45f6bc5ff9c3387387f048ec85dcb4e69acf0b03 (patch) | |
| tree | d04952bb05b53a362bcd165fb910c5c1441b4c5d /include/linux/journal-head.h | |
| parent | 3138887bd8d18173f3c2baf1e43621c49090cd27 (diff) | |
| parent | e4aa937ec75df0eea0bee03bffa3303ad36c986b (diff) | |
| download | linux-45f6bc5ff9c3387387f048ec85dcb4e69acf0b03.tar.xz | |
Merge 3.10-rc3 into usb-next
We want these fixes.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/journal-head.h')
| -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. |