dm cache: lift common migration preparation code to alloc_migration() (ef7afb36) · Commits · e / devices / android_kernel_teracube_emerald

drivers/md/dm-cache-target.c

+7 −10

Original line number	Diff line number	Diff line
		@@ -551,10 +551,13 @@ static struct dm_cache_migration alloc_migration(struct cache cache)
		struct dm_cache_migration *mg;

		mg = mempool_alloc(cache->migration_pool, GFP_NOWAIT);
		if (mg) {
		if (!mg)
		return NULL;

		memset(mg, 0, sizeof(*mg));

		mg->cache = cache;
		atomic_inc(&mg->cache->nr_allocated_migrations);
		}
		atomic_inc(&cache->nr_allocated_migrations);

		return mg;
		}
		@@ -1542,9 +1545,6 @@ static int mg_start(struct cache cache, struct policy_work op, struct bio *bio
		return -ENOMEM;
		}

		memset(mg, 0, sizeof(*mg));

		mg->cache = cache;
		mg->op = op;
		mg->overwrite_bio = bio;

		@@ -1678,9 +1678,6 @@ static int invalidate_start(struct cache *cache, dm_cblock_t cblock,
		return -ENOMEM;
		}

		memset(mg, 0, sizeof(*mg));

		mg->cache = cache;
		mg->overwrite_bio = bio;
		mg->invalidate_cblock = cblock;
		mg->invalidate_oblock = oblock;