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Date:   Sun, 15 Nov 2020 12:18:28 +0000
From:   Matthew Wilcox <willy@...radead.org>
To:     Dongli Zhang <dongli.zhang@...cle.com>
Cc:     linux-mm@...ck.org, netdev@...r.kernel.org,
        aruna.ramakrishna@...cle.com, bert.barbe@...cle.com,
        rama.nichanamatlu@...cle.com, venkat.x.venkatsubra@...cle.com,
        manjunath.b.patil@...cle.com, joe.jin@...cle.com,
        srinivas.eeda@...cle.com, stable@...r.kernel.org,
        linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
        davem@...emloft.net, edumazet@...gle.com, vbabka@...e.cz
Subject: Re: [PATCH v2 1/1] page_frag: Recover from memory pressure

On Sat, Nov 14, 2020 at 10:51:06PM -0800, Dongli Zhang wrote:
> +		if (nc->pfmemalloc) {

You missed the unlikely() change that Eric recommended.

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