[PATCH] jffs2: remove SLAB_MEM_SPREAD flag usage

[PATCH] jffs2: remove SLAB_MEM_SPREAD flag usage

[chengming.zhou]

From: Chengming Zhou <zhouchengming@bytedance.com>

The SLAB_MEM_SPREAD flag is already a no-op as of 6.8-rc1, remove
its usage so we can delete it from slab. No functional change.

Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
---
 fs/jffs2/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c
index f99591a634b4..aede1be4dc0c 100644
--- a/fs/jffs2/super.c
+++ b/fs/jffs2/super.c
@@ -387,7 +387,7 @@ static int __init init_jffs2_fs(void)
 	jffs2_inode_cachep = kmem_cache_create("jffs2_i",
 					     sizeof(struct jffs2_inode_info),
 					     0, (SLAB_RECLAIM_ACCOUNT|
-						SLAB_MEM_SPREAD|SLAB_ACCOUNT),
+						SLAB_ACCOUNT),
 					     jffs2_i_init_once);
 	if (!jffs2_inode_cachep) {
 		pr_err("error: Failed to initialise inode cache\n");
-- 
2.40.1

Re: [PATCH] jffs2: remove SLAB_MEM_SPREAD flag usage

[Zhihao Cheng]

在 2024/2/24 21:49, chengming.zhou@linux.dev 写道:
> From: Chengming Zhou <zhouchengming@bytedance.com>
> 
> The SLAB_MEM_SPREAD flag is already a no-op as of 6.8-rc1, remove
> its usage so we can delete it from slab. No functional change.
> 
> Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
> ---
>   fs/jffs2/super.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)

Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com>
> 
> diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c
> index f99591a634b4..aede1be4dc0c 100644
> --- a/fs/jffs2/super.c
> +++ b/fs/jffs2/super.c
> @@ -387,7 +387,7 @@ static int __init init_jffs2_fs(void)
>   	jffs2_inode_cachep = kmem_cache_create("jffs2_i",
>   					     sizeof(struct jffs2_inode_info),
>   					     0, (SLAB_RECLAIM_ACCOUNT|
> -						SLAB_MEM_SPREAD|SLAB_ACCOUNT),
> +						SLAB_ACCOUNT),
>   					     jffs2_i_init_once);
>   	if (!jffs2_inode_cachep) {
>   		pr_err("error: Failed to initialise inode cache\n");
> 

Re: [PATCH] jffs2: remove SLAB_MEM_SPREAD flag usage

[Chengming Zhou]

On 2024/2/24 21:49, chengming.zhou@linux.dev wrote:
> From: Chengming Zhou <zhouchengming@bytedance.com>
> 
> The SLAB_MEM_SPREAD flag is already a no-op as of 6.8-rc1, remove
> its usage so we can delete it from slab. No functional change.

Update changelog to make it clearer:

The SLAB_MEM_SPREAD flag used to be implemented in SLAB, which was
removed as of v6.8-rc1, so it became a dead flag. And the series[1]
went on to mark it obsolete to avoid confusion for users. Here we
can just remove all its users, which has no functional change.

[1] https://lore.kernel.org/all/20240223-slab-cleanup-flags-v2-1-02f1753e8303@suse.cz/

Thanks!

> 
> Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
> ---
>  fs/jffs2/super.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c
> index f99591a634b4..aede1be4dc0c 100644
> --- a/fs/jffs2/super.c
> +++ b/fs/jffs2/super.c
> @@ -387,7 +387,7 @@ static int __init init_jffs2_fs(void)
>  	jffs2_inode_cachep = kmem_cache_create("jffs2_i",
>  					     sizeof(struct jffs2_inode_info),
>  					     0, (SLAB_RECLAIM_ACCOUNT|
> -						SLAB_MEM_SPREAD|SLAB_ACCOUNT),
> +						SLAB_ACCOUNT),
>  					     jffs2_i_init_once);
>  	if (!jffs2_inode_cachep) {
>  		pr_err("error: Failed to initialise inode cache\n");