From 0c395b0f8dd7aee394df95b46963fc0f3401cf90 Mon Sep 17 00:00:00 2001 From: Milan Broz Date: Fri, 8 Feb 2008 02:10:54 +0000 Subject: [PATCH] dm crypt: store sector mapping in dm_crypt_io Add sector into dm_crypt_io instead of using local variable. Signed-off-by: Milan Broz Signed-off-by: Alasdair G Kergon --- drivers/md/dm-crypt.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index ccc2fe19db8..d3c48ad580d 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -52,6 +52,7 @@ struct dm_crypt_io { atomic_t pending; int error; + sector_t sector; }; struct crypt_config; @@ -526,7 +527,6 @@ static void kcryptd_io_read(struct dm_crypt_io *io) struct crypt_config *cc = io->target->private; struct bio *base_bio = io->base_bio; struct bio *clone; - sector_t sector = base_bio->bi_sector - io->target->begin; atomic_inc(&io->pending); @@ -546,7 +546,7 @@ static void kcryptd_io_read(struct dm_crypt_io *io) clone->bi_idx = 0; clone->bi_vcnt = bio_segments(base_bio); clone->bi_size = base_bio->bi_size; - clone->bi_sector = cc->start + sector; + clone->bi_sector = cc->start + io->sector; memcpy(clone->bi_io_vec, bio_iovec(base_bio), sizeof(struct bio_vec) * clone->bi_vcnt); @@ -585,11 +585,10 @@ static void kcryptd_crypt_write_convert(struct dm_crypt_io *io) struct bio *base_bio = io->base_bio; struct bio *clone; unsigned remaining = base_bio->bi_size; - sector_t sector = base_bio->bi_sector - io->target->begin; atomic_inc(&io->pending); - crypt_convert_init(cc, &io->ctx, NULL, base_bio, sector); + crypt_convert_init(cc, &io->ctx, NULL, base_bio, io->sector); /* * The allocated buffers can be smaller than the whole bio, @@ -617,9 +616,9 @@ static void kcryptd_crypt_write_convert(struct dm_crypt_io *io) /* crypt_convert should have filled the clone bio */ BUG_ON(io->ctx.idx_out < clone->bi_vcnt); - clone->bi_sector = cc->start + sector; + clone->bi_sector = cc->start + io->sector; remaining -= clone->bi_size; - sector += bio_sectors(clone); + io->sector += bio_sectors(clone); /* Grab another reference to the io struct * before we kick off the request */ @@ -651,7 +650,7 @@ static void kcryptd_crypt_read_convert(struct dm_crypt_io *io) int r = 0; crypt_convert_init(cc, &io->ctx, io->base_bio, io->base_bio, - io->base_bio->bi_sector - io->target->begin); + io->sector); r = crypt_convert(cc, &io->ctx); @@ -974,6 +973,7 @@ static int crypt_map(struct dm_target *ti, struct bio *bio, 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); -- 2.41.1