diff options
Diffstat (limited to 'drivers/md/dm-stripe.c')
| -rw-r--r-- | drivers/md/dm-stripe.c | 39 |
1 files changed, 19 insertions, 20 deletions
diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c index e2f876539743..d8837d313f54 100644 --- a/drivers/md/dm-stripe.c +++ b/drivers/md/dm-stripe.c @@ -160,8 +160,9 @@ static int stripe_ctr(struct dm_target *ti, unsigned int argc, char **argv) if (r) return r; - ti->num_flush_requests = stripes; - ti->num_discard_requests = stripes; + ti->num_flush_bios = stripes; + ti->num_discard_bios = stripes; + ti->num_write_same_bios = stripes; sc->chunk_size = chunk_size; if (chunk_size & (chunk_size - 1)) @@ -251,8 +252,8 @@ static void stripe_map_range_sector(struct stripe_c *sc, sector_t sector, *result += sc->chunk_size; /* next chunk */ } -static int stripe_map_discard(struct stripe_c *sc, struct bio *bio, - uint32_t target_stripe) +static int stripe_map_range(struct stripe_c *sc, struct bio *bio, + uint32_t target_stripe) { sector_t begin, end; @@ -271,23 +272,23 @@ static int stripe_map_discard(struct stripe_c *sc, struct bio *bio, } } -static int stripe_map(struct dm_target *ti, struct bio *bio, - union map_info *map_context) +static int stripe_map(struct dm_target *ti, struct bio *bio) { struct stripe_c *sc = ti->private; uint32_t stripe; - unsigned target_request_nr; + unsigned target_bio_nr; if (bio->bi_rw & REQ_FLUSH) { - target_request_nr = map_context->target_request_nr; - BUG_ON(target_request_nr >= sc->stripes); - bio->bi_bdev = sc->stripe[target_request_nr].dev->bdev; + target_bio_nr = dm_bio_get_target_bio_nr(bio); + BUG_ON(target_bio_nr >= sc->stripes); + bio->bi_bdev = sc->stripe[target_bio_nr].dev->bdev; return DM_MAPIO_REMAPPED; } - if (unlikely(bio->bi_rw & REQ_DISCARD)) { - target_request_nr = map_context->target_request_nr; - BUG_ON(target_request_nr >= sc->stripes); - return stripe_map_discard(sc, bio, target_request_nr); + if (unlikely(bio->bi_rw & REQ_DISCARD) || + unlikely(bio->bi_rw & REQ_WRITE_SAME)) { + target_bio_nr = dm_bio_get_target_bio_nr(bio); + BUG_ON(target_bio_nr >= sc->stripes); + return stripe_map_range(sc, bio, target_bio_nr); } stripe_map_sector(sc, bio->bi_sector, &stripe, &bio->bi_sector); @@ -311,8 +312,8 @@ static int stripe_map(struct dm_target *ti, struct bio *bio, * */ -static int stripe_status(struct dm_target *ti, status_type_t type, - unsigned status_flags, char *result, unsigned maxlen) +static void stripe_status(struct dm_target *ti, status_type_t type, + unsigned status_flags, char *result, unsigned maxlen) { struct stripe_c *sc = (struct stripe_c *) ti->private; char buffer[sc->stripes + 1]; @@ -339,11 +340,9 @@ static int stripe_status(struct dm_target *ti, status_type_t type, (unsigned long long)sc->stripe[i].physical_start); break; } - return 0; } -static int stripe_end_io(struct dm_target *ti, struct bio *bio, - int error, union map_info *map_context) +static int stripe_end_io(struct dm_target *ti, struct bio *bio, int error) { unsigned i; char major_minor[16]; @@ -428,7 +427,7 @@ static int stripe_merge(struct dm_target *ti, struct bvec_merge_data *bvm, static struct target_type stripe_target = { .name = "striped", - .version = {1, 5, 0}, + .version = {1, 5, 1}, .module = THIS_MODULE, .ctr = stripe_ctr, .dtr = stripe_dtr, |