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| author | Milan Broz <mbroz@redhat.com> | 2008-02-08 02:10:54 +0000 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2008-02-08 02:10:54 +0000 |
| commit | 0c395b0f8dd7aee394df95b46963fc0f3401cf90 (patch) | |
| tree | 03a83a7ba9e9917fadae5416ed58533e51e67067 | |
| parent | 395b167ca0c559aa975d8bbc46a3d10edd6e17d0 (diff) | |
| download | linux-0c395b0f8dd7aee394df95b46963fc0f3401cf90.tar.bz2 | |
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 <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
| -rw-r--r-- | drivers/md/dm-crypt.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index ccc2fe19db86..d3c48ad580d9 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); |