linux-kernel - Re: [PATCH 1/2] mm: KSM: fix ksm

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Date:   Thu, 15 Jul 2021 19:17:16 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     Zhansaya Bagdauletkyzy <zhansayabagdaulet@...il.com>
Cc:     akpm@...ux-foundation.org, tyhicks@...ux.microsoft.com,
        pasha.tatashin@...een.com, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] mm: KSM: fix ksm_run data type

On Fri, Jul 16, 2021 at 12:01:01AM +0600, Zhansaya Bagdauletkyzy wrote:
> +++ b/mm/ksm.c
> @@ -289,7 +289,7 @@ static int ksm_nr_node_ids = 1;
>  #define KSM_RUN_MERGE	1
>  #define KSM_RUN_UNMERGE	2
>  #define KSM_RUN_OFFLINE	4
> -static unsigned long ksm_run = KSM_RUN_STOP;
> +static unsigned int ksm_run = KSM_RUN_STOP;

Should this be an enum instead?