This should have been part of the original io error patch, but got dropped
somewhere along the way.
It's extremely important when handling the i/o error in the journal to not
commit the transaction with corrupt data. This patch adds that code back in.
fs/reiserfs/journal.c | 17 +++++++++++++----
1 files changed, 13 insertions(+), 4 deletions(-)
Signed-off-by: Jeff Mahoney <[email protected]>
diff -ruNpX dontdiff linux-2.6.14.orig/fs/reiserfs/journal.c linux-2.6.14.fixed/fs/reiserfs/journal.c
--- linux-2.6.14.orig/fs/reiserfs/journal.c 2005-10-27 20:02:08.000000000 -0400
+++ linux-2.6.14.fixed/fs/reiserfs/journal.c 2005-12-05 17:15:59.000000000 -0500
@@ -1039,6 +1039,10 @@ static int flush_commit_list(struct supe
}
atomic_dec(&journal->j_async_throttle);
+ /* We're skipping the commit if there's an error */
+ if (retval || reiserfs_is_journal_aborted(journal))
+ barrier = 0;
+
/* wait on everything written so far before writing the commit
* if we are in barrier mode, send the commit down now
*/
@@ -1077,10 +1081,16 @@ static int flush_commit_list(struct supe
BUG_ON(atomic_read(&(jl->j_commit_left)) != 1);
if (!barrier) {
- if (buffer_dirty(jl->j_commit_bh))
- BUG();
- mark_buffer_dirty(jl->j_commit_bh);
- sync_dirty_buffer(jl->j_commit_bh);
+ /* If there was a write error in the journal - we can't commit
+ * this transaction - it will be invalid and, if successful,
+ * will just end up propogating the write error out to
+ * the file system. */
+ if (likely(!retval && !reiserfs_is_journal_aborted (journal))) {
+ if (buffer_dirty(jl->j_commit_bh))
+ BUG();
+ mark_buffer_dirty(jl->j_commit_bh) ;
+ sync_dirty_buffer(jl->j_commit_bh) ;
+ }
} else
wait_on_buffer(jl->j_commit_bh);
--
Jeff Mahoney
SuSE Labs
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
