diff options
Diffstat (limited to 'drivers/md/dm-cache-target.c')
| -rw-r--r-- | drivers/md/dm-cache-target.c | 26 |
1 files changed, 9 insertions, 17 deletions
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c index 447d030036d1..89fdfb49d564 100644 --- a/drivers/md/dm-cache-target.c +++ b/drivers/md/dm-cache-target.c @@ -744,21 +744,14 @@ static void check_if_tick_bio_needed(struct cache *cache, struct bio *bio) spin_unlock_irq(&cache->lock); } -static void __remap_to_origin_clear_discard(struct cache *cache, struct bio *bio, - dm_oblock_t oblock, bool bio_has_pbd) -{ - if (bio_has_pbd) - check_if_tick_bio_needed(cache, bio); - remap_to_origin(cache, bio); - if (bio_data_dir(bio) == WRITE) - clear_discard(cache, oblock_to_dblock(cache, oblock)); -} - static void remap_to_origin_clear_discard(struct cache *cache, struct bio *bio, dm_oblock_t oblock) { // FIXME: check_if_tick_bio_needed() is called way too much through this interface - __remap_to_origin_clear_discard(cache, bio, oblock, true); + check_if_tick_bio_needed(cache, bio); + remap_to_origin(cache, bio); + if (bio_data_dir(bio) == WRITE) + clear_discard(cache, oblock_to_dblock(cache, oblock)); } static void remap_to_cache_dirty(struct cache *cache, struct bio *bio, @@ -826,16 +819,15 @@ static void issue_op(struct bio *bio, void *context) static void remap_to_origin_and_cache(struct cache *cache, struct bio *bio, dm_oblock_t oblock, dm_cblock_t cblock) { - struct bio *origin_bio = bio_clone_fast(bio, GFP_NOIO, &cache->bs); + struct bio *origin_bio = bio_alloc_clone(cache->origin_dev->bdev, bio, + GFP_NOIO, &cache->bs); BUG_ON(!origin_bio); bio_chain(origin_bio, bio); - /* - * Passing false to __remap_to_origin_clear_discard() skips - * all code that might use per_bio_data (since clone doesn't have it) - */ - __remap_to_origin_clear_discard(cache, origin_bio, oblock, false); + + if (bio_data_dir(origin_bio) == WRITE) + clear_discard(cache, oblock_to_dblock(cache, oblock)); submit_bio(origin_bio); remap_to_cache(cache, bio, cblock); |