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dm crypt: disable barriers

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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 <[email protected]>
Signed-off-by: Alasdair G Kergon <[email protected]>
Cc: Jens Axboe <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Milan Broz 2007-05-09 02:32:51 -07:00 • committed by Linus Torvalds
commit 9c89f8be1a
1 changed files with 3 additions and 0 deletions
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3
drivers/md/dm-crypt.c
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@ -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;