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bcache: Use a mempool for mergesort temporary space

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It was a single element mempool before, it's slightly cleaner to just use a real
mempool.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
This commit is contained in:
Kent Overstreet
2013-12-18 00:01:06 -08:00
parent 78b77bf8b2
commit 0a45114534
3 changed files with 8 additions and 16 deletions
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5
drivers/md/bcache/super.c
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@@ -1352,7 +1352,6 @@ static void cache_set_free(struct closure *cl)
kobject_put(&ca->kobj);
free_pages((unsigned long) c->uuids, ilog2(bucket_pages(c)));
free_pages((unsigned long) c->sort, ilog2(bucket_pages(c)));
if (c->bio_split)
bioset_free(c->bio_split);
@@ -1489,7 +1488,6 @@ struct cache_set *bch_cache_set_alloc(struct cache_sb *sb)
init_waitqueue_head(&c->try_wait);
init_waitqueue_head(&c->bucket_wait);
sema_init(&c->uuid_write_mutex, 1);
mutex_init(&c->sort_lock);
spin_lock_init(&c->sort_time.lock);
spin_lock_init(&c->btree_gc_time.lock);
@@ -1519,7 +1517,8 @@ struct cache_set *bch_cache_set_alloc(struct cache_sb *sb)
bucket_pages(c))) ||
!(c->fill_iter = mempool_create_kmalloc_pool(1, iter_size)) ||
!(c->bio_split = bioset_create(4, offsetof(struct bbio, bio))) ||
!(c->sort = alloc_bucket_pages(GFP_KERNEL, c)) ||
!(c->sort_pool = mempool_create_page_pool(1,
ilog2(bucket_pages(c)))) ||
!(c->uuids = alloc_bucket_pages(GFP_KERNEL, c)) ||
bch_journal_alloc(c) ||
bch_btree_cache_alloc(c) ||