diff options
Diffstat (limited to 'drivers/md/dm-stripe.c')
| -rw-r--r-- | drivers/md/dm-stripe.c | 31 |
1 files changed, 6 insertions, 25 deletions
diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c index a672a1502c14..797ddb900b06 100644 --- a/drivers/md/dm-stripe.c +++ b/drivers/md/dm-stripe.c @@ -75,13 +75,15 @@ static int get_stripe(struct dm_target *ti, struct stripe_c *sc, { unsigned long long start; char dummy; + int ret; if (sscanf(argv[1], "%llu%c", &start, &dummy) != 1) return -EINVAL; - if (dm_get_device(ti, argv[0], dm_table_get_mode(ti->table), - &sc->stripe[stripe].dev)) - return -ENXIO; + ret = dm_get_device(ti, argv[0], dm_table_get_mode(ti->table), + &sc->stripe[stripe].dev); + if (ret) + return ret; sc->stripe[stripe].physical_start = start; @@ -273,7 +275,7 @@ static int stripe_map_range(struct stripe_c *sc, struct bio *bio, return DM_MAPIO_REMAPPED; } else { /* The range doesn't map to the target stripe */ - bio_endio(bio, 0); + bio_endio(bio); return DM_MAPIO_SUBMITTED; } } @@ -412,26 +414,6 @@ static void stripe_io_hints(struct dm_target *ti, blk_limits_io_opt(limits, chunk_size * sc->stripes); } -static int stripe_merge(struct dm_target *ti, struct bvec_merge_data *bvm, - struct bio_vec *biovec, int max_size) -{ - struct stripe_c *sc = ti->private; - sector_t bvm_sector = bvm->bi_sector; - uint32_t stripe; - struct request_queue *q; - - stripe_map_sector(sc, bvm_sector, &stripe, &bvm_sector); - - q = bdev_get_queue(sc->stripe[stripe].dev->bdev); - if (!q->merge_bvec_fn) - return max_size; - - bvm->bi_bdev = sc->stripe[stripe].dev->bdev; - bvm->bi_sector = sc->stripe[stripe].physical_start + bvm_sector; - - return min(max_size, q->merge_bvec_fn(q, bvm, biovec)); -} - static struct target_type stripe_target = { .name = "striped", .version = {1, 5, 1}, @@ -443,7 +425,6 @@ static struct target_type stripe_target = { .status = stripe_status, .iterate_devices = stripe_iterate_devices, .io_hints = stripe_io_hints, - .merge = stripe_merge, }; int __init dm_stripe_init(void) |