linux-kernel - Re: [PATCH v6 6/8] hugetlb: have CONFIG_HUGETLBFS select CONFIG

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Message-ID: <k4c7ztr5istcahrygczpqmaz5zp2ejiipiziqdi7cmw7vo6h4c@jjtuw4blhyu4>
Date: Tue, 27 Feb 2024 16:26:57 -0500
From: Daniel Jordan <daniel.m.jordan@...cle.com>
To: Gang Li <gang.li@...ux.dev>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
        David Hildenbrand <david@...hat.com>,
        David Rientjes <rientjes@...gle.com>,
        Muchun Song <muchun.song@...ux.dev>,
        Tim Chen <tim.c.chen@...ux.intel.com>,
        Steffen Klassert <steffen.klassert@...unet.com>,
        Jane Chu <jane.chu@...cle.com>,
        "Paul E . McKenney" <paulmck@...nel.org>,
        Randy Dunlap <rdunlap@...radead.org>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, ligang.bdlg@...edance.com
Subject: Re: [PATCH v6 6/8] hugetlb: have CONFIG_HUGETLBFS select
 CONFIG_PADATA

On Thu, Feb 22, 2024 at 10:04:19PM +0800, Gang Li wrote:
> Allow hugetlb use padata_do_multithreaded for parallel initialization.
> Select CONFIG_PADATA in this case.
> 
> Signed-off-by: Gang Li <ligang.bdlg@...edance.com>
> Tested-by: David Rientjes <rientjes@...gle.com>
> Reviewed-by: Muchun Song <muchun.song@...ux.dev>
> Tested-by: Paul E. McKenney <paulmck@...nel.org>

Acked-by: Daniel Jordan <daniel.m.jordan@...cle.com>

> ---
>  fs/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/fs/Kconfig b/fs/Kconfig
> index 89fdbefd1075f..c0b9599bf8e3a 100644
> --- a/fs/Kconfig
> +++ b/fs/Kconfig
> @@ -262,6 +262,7 @@ menuconfig HUGETLBFS
>  	depends on X86 || SPARC64 || ARCH_SUPPORTS_HUGETLBFS || BROKEN
>  	depends on (SYSFS || SYSCTL)
>  	select MEMFD_CREATE
> +	select PADATA if SMP
>  	help
>  	  hugetlbfs is a filesystem backing for HugeTLB pages, based on
>  	  ramfs. For architectures that support it, say Y here and read
> -- 
> 2.20.1
>