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path: root/drivers/md/dm-cache-target.c
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Diffstat (limited to 'drivers/md/dm-cache-target.c')
-rw-r--r--drivers/md/dm-cache-target.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index ffd472e015ca..1af70145fab9 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -289,6 +289,7 @@ struct per_bio_data {
289 bool tick:1; 289 bool tick:1;
290 unsigned req_nr:2; 290 unsigned req_nr:2;
291 struct dm_deferred_entry *all_io_entry; 291 struct dm_deferred_entry *all_io_entry;
292 struct dm_hook_info hook_info;
292 293
293 /* 294 /*
294 * writethrough fields. These MUST remain at the end of this 295 * writethrough fields. These MUST remain at the end of this
@@ -297,7 +298,6 @@ struct per_bio_data {
297 */ 298 */
298 struct cache *cache; 299 struct cache *cache;
299 dm_cblock_t cblock; 300 dm_cblock_t cblock;
300 struct dm_hook_info hook_info;
301 struct dm_bio_details bio_details; 301 struct dm_bio_details bio_details;
302}; 302};
303 303
@@ -671,15 +671,16 @@ static void remap_to_cache(struct cache *cache, struct bio *bio,
671 dm_cblock_t cblock) 671 dm_cblock_t cblock)
672{ 672{
673 sector_t bi_sector = bio->bi_iter.bi_sector; 673 sector_t bi_sector = bio->bi_iter.bi_sector;
674 sector_t block = from_cblock(cblock);
674 675
675 bio->bi_bdev = cache->cache_dev->bdev; 676 bio->bi_bdev = cache->cache_dev->bdev;
676 if (!block_size_is_power_of_two(cache)) 677 if (!block_size_is_power_of_two(cache))
677 bio->bi_iter.bi_sector = 678 bio->bi_iter.bi_sector =
678 (from_cblock(cblock) * cache->sectors_per_block) + 679 (block * cache->sectors_per_block) +
679 sector_div(bi_sector, cache->sectors_per_block); 680 sector_div(bi_sector, cache->sectors_per_block);
680 else 681 else
681 bio->bi_iter.bi_sector = 682 bio->bi_iter.bi_sector =
682 (from_cblock(cblock) << cache->sectors_per_block_shift) | 683 (block << cache->sectors_per_block_shift) |
683 (bi_sector & (cache->sectors_per_block - 1)); 684 (bi_sector & (cache->sectors_per_block - 1));
684} 685}
685 686
@@ -1010,13 +1011,15 @@ static void overwrite_endio(struct bio *bio, int err)
1010 struct per_bio_data *pb = get_per_bio_data(bio, pb_data_size); 1011 struct per_bio_data *pb = get_per_bio_data(bio, pb_data_size);
1011 unsigned long flags; 1012 unsigned long flags;
1012 1013
1014 dm_unhook_bio(&pb->hook_info, bio);
1015
1013 if (err) 1016 if (err)
1014 mg->err = true; 1017 mg->err = true;
1015 1018
1019 mg->requeue_holder = false;
1020
1016 spin_lock_irqsave(&cache->lock, flags); 1021 spin_lock_irqsave(&cache->lock, flags);
1017 list_add_tail(&mg->list, &cache->completed_migrations); 1022 list_add_tail(&mg->list, &cache->completed_migrations);
1018 dm_unhook_bio(&pb->hook_info, bio);
1019 mg->requeue_holder = false;
1020 spin_unlock_irqrestore(&cache->lock, flags); 1023 spin_unlock_irqrestore(&cache->lock, flags);
1021 1024
1022 wake_worker(cache); 1025 wake_worker(cache);