linux-kernel - Re: [PATCH] Documentation/sysctl/vm.txt: Fix drop

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Message-ID: <20190114172518.5ea0d704@lwn.net>
Date:   Mon, 14 Jan 2019 17:25:18 -0700
From:   Jonathan Corbet <corbet@....net>
To:     Vincent Whitchurch <vincent.whitchurch@...s.com>
Cc:     linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, dave.hansen@...ux.intel.com,
        Vincent Whitchurch <rabinv@...s.com>,
        Matthew Wilcox <willy@...radead.org>
Subject: Re: [PATCH] Documentation/sysctl/vm.txt: Fix drop_caches bit number

On Fri, 11 Jan 2019 17:14:10 +0100
Vincent Whitchurch <vincent.whitchurch@...s.com> wrote:

> Bits are usually numbered starting from zero, so 4 should be bit 2, not
> bit 3.
> 
> Suggested-by: Matthew Wilcox <willy@...radead.org>
> Signed-off-by: Vincent Whitchurch <vincent.whitchurch@...s.com>
> ---
>  Documentation/sysctl/vm.txt | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt
> index 187ce4f599a2..6af24cdb25cc 100644
> --- a/Documentation/sysctl/vm.txt
> +++ b/Documentation/sysctl/vm.txt
> @@ -237,7 +237,7 @@ used:
>  	cat (1234): drop_caches: 3
>  
>  These are informational only.  They do not mean that anything is wrong
> -with your system.  To disable them, echo 4 (bit 3) into drop_caches.
> +with your system.  To disable them, echo 4 (bit 2) into drop_caches.

Applied, thanks.

jon