adulau/aha
1
0
Fork 0
mirror of https://github.com/adulau/aha.git synced 2024-12-28 03:36:19 +00:00
Code Issues Projects Releases Packages Wiki Activity

jbd2: abort when failed to log metadata buffers

Browse source 
If we failed to write metadata buffers to the journal space and
succeeded to write the commit record, stale data can be written
back to the filesystem as metadata in the recovery phase.

To avoid this, when we failed to write out metadata buffers,
abort the journal before writing the commit record.

We can also avoid this kind of corruption by using the journal
checksum feature because it can detect invalid metadata blocks in the
journal and avoid them from being replayed.  So we don't need to care
about asynchronous commit record writeout with a checksum.

Signed-off-by: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Hidehiro Kawai 2008-10-12 16:39:16 -04:00 committed by Theodore Ts'o
parent fd04808830
commit 77e841de8a
1 changed files with 3 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
fs/jbd2/commit.c
View file

@ -783,6 +783,9 @@ wait_for_iobuf:
/* AKPM: bforget here */
}
if (err)
jbd2_journal_abort(journal, err);
jbd_debug(3, "JBD: commit phase 5\n");
if (!JBD2_HAS_INCOMPAT_FEATURE(journal,