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/9p/v9fs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index 61dbe52bb3a3..281a1ed03a04 100644
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -637,7 +637,7 @@ static int v9fs_init_inode_cache(void)
 	v9fs_inode_cache = kmem_cache_create("v9fs_inode_cache",
 					  sizeof(struct v9fs_inode),
 					  0, (SLAB_RECLAIM_ACCOUNT|
-					      SLAB_MEM_SPREAD|SLAB_ACCOUNT),
+					      SLAB_ACCOUNT),
 					  v9fs_inode_init_once);
 	if (!v9fs_inode_cache)
 		return -ENOMEM;
-- 
2.40.1

On 2024/2/24 21:46, 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 since the commit
16a1d968358a ("mm/slab: remove mm/slab.c and slab_def.h"). 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/9p/v9fs.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
> index 61dbe52bb3a3..281a1ed03a04 100644
> --- a/fs/9p/v9fs.c
> +++ b/fs/9p/v9fs.c
> @@ -637,7 +637,7 @@ static int v9fs_init_inode_cache(void)
>  	v9fs_inode_cache = kmem_cache_create("v9fs_inode_cache",
>  					  sizeof(struct v9fs_inode),
>  					  0, (SLAB_RECLAIM_ACCOUNT|
> -					      SLAB_MEM_SPREAD|SLAB_ACCOUNT),
> +					      SLAB_ACCOUNT),
>  					  v9fs_inode_init_once);
>  	if (!v9fs_inode_cache)
>  		return -ENOMEM;

Chengming Zhou wrote on Mon, Feb 26, 2024 at 10:51:00AM +0800:
> On 2024/2/24 21:46, 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 since the commit
> 16a1d968358a ("mm/slab: remove mm/slab.c and slab_def.h"). 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 for the updated text, this is a bit better.
I've updated your commit message with this and will push to Linus next
merge window in a couple of weeks, as you said there's no change so no
reason to submit a patch this late in the cycle.

-- 
Dominique Martinet | Asmadeus