linux-kernel - Re: [PATCH 5/8] mm, pagevec: Remove cold parameter for pagevecs

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Message-ID: <e049fbe6-f5bc-80c2-25c6-c2ee0cb91728@suse.cz>
Date:   Thu, 19 Oct 2017 11:24:51 +0200
From:   Vlastimil Babka <vbabka@...e.cz>
To:     Mel Gorman <mgorman@...hsingularity.net>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     Linux-MM <linux-mm@...ck.org>,
        Linux-FSDevel <linux-fsdevel@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>, Jan Kara <jack@...e.cz>,
        Andi Kleen <ak@...ux.intel.com>,
        Dave Hansen <dave.hansen@...el.com>,
        Dave Chinner <david@...morbit.com>
Subject: Re: [PATCH 5/8] mm, pagevec: Remove cold parameter for pagevecs

On 10/18/2017 09:59 AM, Mel Gorman wrote:
> Every pagevec_init user claims the pages being released are false even in
> cases where it is unlikely the pages are hot. As no one cares about the
> hotness of pages being released to the allocator, just ditch the parameter.
> 
> No performance impact is expected as the overhead is marginal. The parameter
> is removed simply because it is a bit stupid to have a useless parameter
> copied everywhere.
> 
> Signed-off-by: Mel Gorman <mgorman@...hsingularity.net>

Acked-by: Vlastimil Babka <vbabka@...e.cz>