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| author | Milan Broz <mbroz@redhat.com> | 2007-05-09 02:32:51 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-09 12:30:46 -0700 |
| commit | 9c89f8be1a7d14aad9d2c3f7d90d7d88f82c61e2 (patch) | |
| tree | 0e94f77a0d9fda323b12dd4e26f0e08aa2fff7ef /drivers/md | |
| parent | 6ad36fe2b451cc85cc7b14f4128286759e217124 (diff) | |
| download | linux-3.10-9c89f8be1a7d14aad9d2c3f7d90d7d88f82c61e2.tar.gz linux-3.10-9c89f8be1a7d14aad9d2c3f7d90d7d88f82c61e2.tar.bz2 linux-3.10-9c89f8be1a7d14aad9d2c3f7d90d7d88f82c61e2.zip | |
dm crypt: disable barriers
Disable barriers in dm-crypt because of current workqueue processing can
reorder requests.
This must be addresed later but for now disabling barriers is needed to
prevent data corruption.
Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/dm-crypt.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index d8121234c34..8527827b24f 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -954,6 +954,9 @@ static int crypt_map(struct dm_target *ti, struct bio *bio, struct crypt_config *cc = ti->private; struct crypt_io *io; + if (bio_barrier(bio)) + return -EOPNOTSUPP; + io = mempool_alloc(cc->io_pool, GFP_NOIO); io->target = ti; io->base_bio = bio; |