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| author | Milan Broz <mbroz@redhat.com> | 2008-10-10 13:37:03 +0100 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2008-10-10 13:37:03 +0100 |
| commit | dc440d1e56c481f80d5350daadc7d078a04ca729 (patch) | |
| tree | 5d7c180f431820a6f1878177b5f59a500227bf1d /drivers/md/dm-crypt.c | |
| parent | 3e1a8bdd05d6b1734a8ccf7af28042d72c447780 (diff) | |
| download | linux-dc440d1e56c481f80d5350daadc7d078a04ca729.tar.gz linux-dc440d1e56c481f80d5350daadc7d078a04ca729.tar.bz2 linux-dc440d1e56c481f80d5350daadc7d078a04ca729.zip | |
dm crypt: tidy crypt alloc
Factor out crypt io allocation code.
Later patches will call it from another place.
No functional change.
Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers/md/dm-crypt.c')
| -rw-r--r-- | drivers/md/dm-crypt.c | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 6b9be99eff5b..cac064d4aa72 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -517,6 +517,22 @@ static void crypt_free_buffer_pages(struct crypt_config *cc, struct bio *clone) } } +static struct dm_crypt_io *crypt_io_alloc(struct dm_target *ti, + struct bio *bio, sector_t sector) +{ + struct crypt_config *cc = ti->private; + struct dm_crypt_io *io; + + io = mempool_alloc(cc->io_pool, GFP_NOIO); + io->target = ti; + io->base_bio = bio; + io->sector = sector; + io->error = 0; + atomic_set(&io->pending, 0); + + return io; +} + static void crypt_inc_pending(struct dm_crypt_io *io) { atomic_inc(&io->pending); @@ -1113,15 +1129,9 @@ static void crypt_dtr(struct dm_target *ti) static int crypt_map(struct dm_target *ti, struct bio *bio, union map_info *map_context) { - struct crypt_config *cc = ti->private; struct dm_crypt_io *io; - io = mempool_alloc(cc->io_pool, GFP_NOIO); - io->target = ti; - io->base_bio = bio; - io->sector = bio->bi_sector - ti->begin; - io->error = 0; - atomic_set(&io->pending, 0); + io = crypt_io_alloc(ti, bio, bio->bi_sector - ti->begin); if (bio_data_dir(io->base_bio) == READ) kcryptd_queue_io(io); |