diff options
Diffstat (limited to 'drivers/md/dm-era-target.c')
-rw-r--r-- | drivers/md/dm-era-target.c | 30 |
1 files changed, 7 insertions, 23 deletions
diff --git a/drivers/md/dm-era-target.c b/drivers/md/dm-era-target.c index ad913cd4aded..665bf3285618 100644 --- a/drivers/md/dm-era-target.c +++ b/drivers/md/dm-era-target.c @@ -343,7 +343,9 @@ static int superblock_all_zeroes(struct dm_block_manager *bm, bool *result) } } - return dm_bm_unlock(b); + dm_bm_unlock(b); + + return 0; } /*----------------------------------------------------------------*/ @@ -582,7 +584,9 @@ static int open_metadata(struct era_metadata *md) md->metadata_snap = le64_to_cpu(disk->metadata_snap); md->archived_writesets = true; - return dm_bm_unlock(sblock); + dm_bm_unlock(sblock); + + return 0; bad: dm_bm_unlock(sblock); @@ -1046,12 +1050,7 @@ static int metadata_take_snap(struct era_metadata *md) md->metadata_snap = dm_block_location(clone); - r = dm_tm_unlock(md->tm, clone); - if (r) { - DMERR("%s: couldn't unlock clone", __func__); - md->metadata_snap = SUPERBLOCK_LOCATION; - return r; - } + dm_tm_unlock(md->tm, clone); return 0; } @@ -1673,20 +1672,6 @@ static int era_iterate_devices(struct dm_target *ti, return fn(ti, era->origin_dev, 0, get_dev_size(era->origin_dev), data); } -static int era_merge(struct dm_target *ti, struct bvec_merge_data *bvm, - struct bio_vec *biovec, int max_size) -{ - struct era *era = ti->private; - struct request_queue *q = bdev_get_queue(era->origin_dev->bdev); - - if (!q->merge_bvec_fn) - return max_size; - - bvm->bi_bdev = era->origin_dev->bdev; - - return min(max_size, q->merge_bvec_fn(q, bvm, biovec)); -} - static void era_io_hints(struct dm_target *ti, struct queue_limits *limits) { struct era *era = ti->private; @@ -1717,7 +1702,6 @@ static struct target_type era_target = { .status = era_status, .message = era_message, .iterate_devices = era_iterate_devices, - .merge = era_merge, .io_hints = era_io_hints }; |