On Wed 23-01-08 20:09:43, Jan Kara wrote:
> Hi,
>
> the patch below fixes preparation of commit block in
> journal_write_commit_record(). Obviously the bug doesn't really matter
> since nobody reported it so far but let's cleanup the code... Andrew, could
> you please queue it up? Thanks.
And the same fix for JBD2.
Honza
--
Jan Kara <jack@xxxxxxx>
SUSE Labs, CR
---
Commit block is expected to have several copies of the header. Fix the
bug Andrew has spotted ages ago.
Signed-off-by: Jan Kara <jack@xxxxxxx>
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index 6986f33..ed61283 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -116,9 +116,8 @@ static int journal_write_commit_record(journal_t *journal,
bh = jh2bh(descriptor);
- /* AKPM: buglet - add `i' to tmp! */
for (i = 0; i < bh->b_size; i += 512) {
- journal_header_t *tmp = (journal_header_t*)bh->b_data;
+ journal_header_t *tmp = (journal_header_t*)(bh->b_data+i);
tmp->h_magic = cpu_to_be32(JBD2_MAGIC_NUMBER);
tmp->h_blocktype = cpu_to_be32(JBD2_COMMIT_BLOCK);
tmp->h_sequence = cpu_to_be32(commit_transaction->t_tid);
-
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
