btrfs: use KMEM_CACHE() to create delayed ref caches

Use the KMEM_CACHE() macro instead of kmem_cache_create() to simplify
the creation of SLAB caches related to delayed refs when the default
values are used.

Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/delayed-ref.c b/fs/btrfs/delayed-ref.c
index 7cfaec5dc806f335c02e472a311cb8afe32e4eeb..c90efc20b8b211cbdf9968a7797d6826bdcccc1c 100644 (file)
--- a/fs/btrfs/delayed-ref.c
+++ b/fs/btrfs/delayed-ref.c
@@ -1307,31 +1307,23 @@ void __cold btrfs_delayed_ref_exit(void)
 
 int __init btrfs_delayed_ref_init(void)
 {
-       btrfs_delayed_ref_head_cachep = kmem_cache_create(
-                               "btrfs_delayed_ref_head",
-                               sizeof(struct btrfs_delayed_ref_head), 0,
-                               SLAB_MEM_SPREAD, NULL);
+       btrfs_delayed_ref_head_cachep = KMEM_CACHE(btrfs_delayed_ref_head,
+                                                  SLAB_MEM_SPREAD);
        if (!btrfs_delayed_ref_head_cachep)
                goto fail;
 
-       btrfs_delayed_tree_ref_cachep = kmem_cache_create(
-                               "btrfs_delayed_tree_ref",
-                               sizeof(struct btrfs_delayed_tree_ref), 0,
-                               SLAB_MEM_SPREAD, NULL);
+       btrfs_delayed_tree_ref_cachep = KMEM_CACHE(btrfs_delayed_tree_ref,
+                                                  SLAB_MEM_SPREAD);
        if (!btrfs_delayed_tree_ref_cachep)
                goto fail;
 
-       btrfs_delayed_data_ref_cachep = kmem_cache_create(
-                               "btrfs_delayed_data_ref",
-                               sizeof(struct btrfs_delayed_data_ref), 0,
-                               SLAB_MEM_SPREAD, NULL);
+       btrfs_delayed_data_ref_cachep = KMEM_CACHE(btrfs_delayed_data_ref,
+                                                  SLAB_MEM_SPREAD);
        if (!btrfs_delayed_data_ref_cachep)
                goto fail;
 
-       btrfs_delayed_extent_op_cachep = kmem_cache_create(
-                               "btrfs_delayed_extent_op",
-                               sizeof(struct btrfs_delayed_extent_op), 0,
-                               SLAB_MEM_SPREAD, NULL);
+       btrfs_delayed_extent_op_cachep = KMEM_CACHE(btrfs_delayed_extent_op,
+                                                   SLAB_MEM_SPREAD);
        if (!btrfs_delayed_extent_op_cachep)
                goto fail;