linux-kernel - Re: [PATCH] dax: remove SLAB_MEM

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Date: Tue, 27 Feb 2024 09:29:20 -0700
From: Dave Jiang <dave.jiang@...el.com>
To: chengming.zhou@...ux.dev, dan.j.williams@...el.com,
 vishal.l.verma@...el.com
Cc: nvdimm@...ts.linux.dev, linux-cxl@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-mm@...ck.org, vbabka@...e.cz,
 roman.gushchin@...ux.dev, Xiongwei.Song@...driver.com,
 Chengming Zhou <zhouchengming@...edance.com>
Subject: Re: [PATCH] dax: remove SLAB_MEM_SPREAD flag usage



On 2/24/24 6:47 AM, chengming.zhou@...ux.dev wrote:
> From: Chengming Zhou <zhouchengming@...edance.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.

Can you please provide a Link tag to the lore post that indicates SLAB_MEM_SPREAD flag is now a no-op?
> 
> Signed-off-by: Chengming Zhou <zhouchengming@...edance.com>
> ---
>  drivers/dax/super.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/dax/super.c b/drivers/dax/super.c
> index 54e528779877..cff0a15b7236 100644
> --- a/drivers/dax/super.c
> +++ b/drivers/dax/super.c
> @@ -547,7 +547,7 @@ static int dax_fs_init(void)
>  
>  	dax_cache = kmem_cache_create("dax_cache", sizeof(struct dax_device), 0,
>  			(SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT|
> -			 SLAB_MEM_SPREAD|SLAB_ACCOUNT),
> +			 SLAB_ACCOUNT),
>  			init_once);
>  	if (!dax_cache)
>  		return -ENOMEM;