Re: [PATCH v2 01/10] btrfs: use a kmem_cache for block groups

[David Sterba <dsterba@suse.cz>]

On Wed, Apr 15, 2026 at 07:44:39PM +0100, fdmanana@kernel.org wrote:
> --- a/fs/btrfs/block-group.c
> +++ b/fs/btrfs/block-group.c
> @@ -22,6 +22,23 @@
>  #include "accessors.h"
>  #include "extent-tree.h"
>  
> +static struct kmem_cache *block_group_cache;
> +
> +int __init btrfs_init_block_group(void)
> +{
> +	block_group_cache = kmem_cache_create("btrfs_block_group",
> +					      sizeof(struct btrfs_block_group),

In case the structure and cache name match you can use KMEM_CACHE.

> +					      0, 0, NULL);
> +	if (!block_group_cache)
> +		return -ENOMEM;
> +	return 0;
> +}