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| author | luojiajun <luojiajun3@huawei.com> | 2019-03-01 00:30:00 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-04-05 22:33:00 +0200 |
| commit | 6a817a7aed1c4074274118d6a27f8b094e2fe0dd (patch) | |
| tree | 4af3d4c73c710a97d8a8fa709e5bad5868328173 /fs/jbd2 | |
| parent | ca66f667189c39b9128c1fba5d0be23d933009d9 (diff) | |
| download | linux-stable-6a817a7aed1c4074274118d6a27f8b094e2fe0dd.tar.gz linux-stable-6a817a7aed1c4074274118d6a27f8b094e2fe0dd.tar.bz2 linux-stable-6a817a7aed1c4074274118d6a27f8b094e2fe0dd.zip | |
jbd2: fix invalid descriptor block checksum
[ Upstream commit 6e876c3dd205d30b0db6850e97a03d75457df007 ]
In jbd2_journal_commit_transaction(), if we are in abort mode,
we may flush the buffer without setting descriptor block checksum
by goto start_journal_io. Then fs is mounted,
jbd2_descriptor_block_csum_verify() failed.
[ 271.379811] EXT4-fs (vdd): shut down requested (2)
[ 271.381827] Aborting journal on device vdd-8.
[ 271.597136] JBD2: Invalid checksum recovering block 22199 in log
[ 271.598023] JBD2: recovery failed
[ 271.598484] EXT4-fs (vdd): error loading journal
Fix this problem by keep setting descriptor block checksum if the
descriptor buffer is not NULL.
This checksum problem can be reproduced by xfstests generic/388.
Signed-off-by: luojiajun <luojiajun3@huawei.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs/jbd2')
| -rw-r--r-- | fs/jbd2/commit.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c index 150cc030b4d7..65ea0355a4f6 100644 --- a/fs/jbd2/commit.c +++ b/fs/jbd2/commit.c @@ -691,9 +691,11 @@ void jbd2_journal_commit_transaction(journal_t *journal) the last tag we set up. */ tag->t_flags |= cpu_to_be16(JBD2_FLAG_LAST_TAG); - - jbd2_descriptor_block_csum_set(journal, descriptor); start_journal_io: + if (descriptor) + jbd2_descriptor_block_csum_set(journal, + descriptor); + for (i = 0; i < bufs; i++) { struct buffer_head *bh = wbuf[i]; /* |