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| author | Milan Broz <mbroz@redhat.com> | 2007-06-13 15:56:39 -0400 |
|---|---|---|
| committer | Willy Tarreau <w@1wt.eu> | 2007-08-15 10:02:28 +0200 |
| commit | 9d6effd49c65970b9cc35ce346fa510eeccd5127 (patch) | |
| tree | f3a72cbbee2cddf0e1bb705da11ac101472be4e4 /drivers | |
| parent | c6de5adc0aae0e5953968aedcfb24be302d786d2 (diff) | |
| download | lwn-9d6effd49c65970b9cc35ce346fa510eeccd5127.tar.gz lwn-9d6effd49c65970b9cc35ce346fa510eeccd5127.zip | |
[PATCH] 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>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -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 4c2471ee054a..f68677d13c4a 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; |