From dc440d1e56c481f80d5350daadc7d078a04ca729 Mon Sep 17 00:00:00 2001 From: Milan Broz Date: Fri, 10 Oct 2008 13:37:03 +0100 Subject: 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 Signed-off-by: Alasdair G Kergon --- drivers/md/dm-crypt.c | 24 +++++++++++++++++------- 1 file changed, 17 insertions(+), 7 deletions(-) (limited to 'drivers/md') diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 6b9be99eff5..cac064d4aa7 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); -- cgit v1.2.3-18-g5258