linux-kernel - Re: [PATCH] khugepaged: Raplace barrier() with READ

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20210323102101.tvlgbijpy37hclgj@box>
Date:   Tue, 23 Mar 2021 13:21:01 +0300
From:   "Kirill A. Shutemov" <kirill@...temov.name>
To:     yanfei.xu@...driver.com
Cc:     akpm@...ux-foundation.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] khugepaged: Raplace barrier() with READ_ONCE() for a
 selective variable

On Tue, Mar 23, 2021 at 05:27:30PM +0800, yanfei.xu@...driver.com wrote:
> From: Yanfei Xu <yanfei.xu@...driver.com>
> 
> READ_ONCE() is more selective and lightweight. It is more appropriate that
> using a READ_ONCE() for the certain variable to prevent the compiler from
> reordering.
> 
> Signed-off-by: Yanfei Xu <yanfei.xu@...driver.com>

Acked-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>

-- 
 Kirill A. Shutemov