diff options
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/dm-crypt.c | 41 |
1 files changed, 21 insertions, 20 deletions
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 6b66ee46b87..af8cd99daa5 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -28,17 +28,6 @@ #define MESG_STR(x) x, sizeof(x) /* - * per bio private data - */ -struct dm_crypt_io { - struct dm_target *target; - struct bio *base_bio; - struct work_struct work; - atomic_t pending; - int error; -}; - -/* * context holding the current state of a multi-part conversion */ struct convert_context { @@ -52,6 +41,20 @@ struct convert_context { int write; }; +/* + * per bio private data + */ +struct dm_crypt_io { + struct dm_target *target; + struct bio *base_bio; + struct work_struct work; + + struct convert_context ctx; + + atomic_t pending; + int error; +}; + struct crypt_config; struct crypt_iv_operations { @@ -579,13 +582,12 @@ static void process_write(struct dm_crypt_io *io) struct crypt_config *cc = io->target->private; struct bio *base_bio = io->base_bio; struct bio *clone; - struct convert_context ctx; unsigned remaining = base_bio->bi_size; sector_t sector = base_bio->bi_sector - io->target->begin; atomic_inc(&io->pending); - crypt_convert_init(cc, &ctx, NULL, base_bio, sector, 1); + crypt_convert_init(cc, &io->ctx, NULL, base_bio, sector, 1); /* * The allocated buffers can be smaller than the whole bio, @@ -598,10 +600,10 @@ static void process_write(struct dm_crypt_io *io) return; } - ctx.bio_out = clone; - ctx.idx_out = 0; + io->ctx.bio_out = clone; + io->ctx.idx_out = 0; - if (unlikely(crypt_convert(cc, &ctx) < 0)) { + if (unlikely(crypt_convert(cc, &io->ctx) < 0)) { crypt_free_buffer_pages(cc, clone); bio_put(clone); crypt_dec_pending(io, -EIO); @@ -609,7 +611,7 @@ static void process_write(struct dm_crypt_io *io) } /* crypt_convert should have filled the clone bio */ - BUG_ON(ctx.idx_out < clone->bi_vcnt); + BUG_ON(io->ctx.idx_out < clone->bi_vcnt); clone->bi_sector = cc->start + sector; remaining -= clone->bi_size; @@ -634,12 +636,11 @@ static void process_write(struct dm_crypt_io *io) static void process_read_endio(struct dm_crypt_io *io) { struct crypt_config *cc = io->target->private; - struct convert_context ctx; - crypt_convert_init(cc, &ctx, io->base_bio, io->base_bio, + crypt_convert_init(cc, &io->ctx, io->base_bio, io->base_bio, io->base_bio->bi_sector - io->target->begin, 0); - crypt_dec_pending(io, crypt_convert(cc, &ctx)); + crypt_dec_pending(io, crypt_convert(cc, &io->ctx)); } static void kcryptd_do_work(struct work_struct *work) |