diff options
Diffstat (limited to 'drivers/md/dm-verity.c')
| -rw-r--r-- | drivers/md/dm-verity.c | 25 |
1 files changed, 5 insertions, 20 deletions
diff --git a/drivers/md/dm-verity.c b/drivers/md/dm-verity.c index 9e7328bb403..52cde982164 100644 --- a/drivers/md/dm-verity.c +++ b/drivers/md/dm-verity.c @@ -55,7 +55,6 @@ struct dm_verity { unsigned shash_descsize;/* the size of temporary space for crypto */ int hash_failed; /* set to 1 if hash of any block failed */ - mempool_t *io_mempool; /* mempool of struct dm_verity_io */ mempool_t *vec_mempool; /* mempool of bio vector */ struct workqueue_struct *verify_wq; @@ -66,7 +65,6 @@ struct dm_verity { struct dm_verity_io { struct dm_verity *v; - struct bio *bio; /* original values of bio->bi_end_io and bio->bi_private */ bio_end_io_t *orig_bi_end_io; @@ -389,8 +387,8 @@ test_block_hash: */ static void verity_finish_io(struct dm_verity_io *io, int error) { - struct bio *bio = io->bio; struct dm_verity *v = io->v; + struct bio *bio = dm_bio_from_per_bio_data(io, v->ti->per_bio_data_size); bio->bi_end_io = io->orig_bi_end_io; bio->bi_private = io->orig_bi_private; @@ -398,8 +396,6 @@ static void verity_finish_io(struct dm_verity_io *io, int error) if (io->io_vec != io->io_vec_inline) mempool_free(io->io_vec, v->vec_mempool); - mempool_free(io, v->io_mempool); - bio_endio(bio, error); } @@ -462,8 +458,7 @@ no_prefetch_cluster: * Bio map function. It allocates dm_verity_io structure and bio vector and * fills them. Then it issues prefetches and the I/O. */ -static int verity_map(struct dm_target *ti, struct bio *bio, - union map_info *map_context) +static int verity_map(struct dm_target *ti, struct bio *bio) { struct dm_verity *v = ti->private; struct dm_verity_io *io; @@ -486,9 +481,8 @@ static int verity_map(struct dm_target *ti, struct bio *bio, if (bio_data_dir(bio) == WRITE) return -EIO; - io = mempool_alloc(v->io_mempool, GFP_NOIO); + io = dm_per_bio_data(bio, ti->per_bio_data_size); io->v = v; - io->bio = bio; io->orig_bi_end_io = bio->bi_end_io; io->orig_bi_private = bio->bi_private; io->block = bio->bi_sector >> (v->data_dev_block_bits - SECTOR_SHIFT); @@ -610,9 +604,6 @@ static void verity_dtr(struct dm_target *ti) if (v->vec_mempool) mempool_destroy(v->vec_mempool); - if (v->io_mempool) - mempool_destroy(v->io_mempool); - if (v->bufio) dm_bufio_client_destroy(v->bufio); @@ -841,13 +832,7 @@ static int verity_ctr(struct dm_target *ti, unsigned argc, char **argv) goto bad; } - v->io_mempool = mempool_create_kmalloc_pool(DM_VERITY_MEMPOOL_SIZE, - sizeof(struct dm_verity_io) + v->shash_descsize + v->digest_size * 2); - if (!v->io_mempool) { - ti->error = "Cannot allocate io mempool"; - r = -ENOMEM; - goto bad; - } + ti->per_bio_data_size = roundup(sizeof(struct dm_verity_io) + v->shash_descsize + v->digest_size * 2, __alignof__(struct dm_verity_io)); v->vec_mempool = mempool_create_kmalloc_pool(DM_VERITY_MEMPOOL_SIZE, BIO_MAX_PAGES * sizeof(struct bio_vec)); @@ -875,7 +860,7 @@ bad: static struct target_type verity_target = { .name = "verity", - .version = {1, 0, 0}, + .version = {1, 1, 0}, .module = THIS_MODULE, .ctr = verity_ctr, .dtr = verity_dtr, |