Re: [PATCH v2 1/1] page_frag: Recover from memory pressure

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To: Dongli Zhang <dongli.zhang@xxxxxxxxxx>
Subject: Re: [PATCH v2 1/1] page_frag: Recover from memory pressure
From: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Date: Sun, 15 Nov 2020 12:18:28 +0000
Cc: linux-mm@xxxxxxxxx, netdev@xxxxxxxxxxxxxxx, aruna.ramakrishna@xxxxxxxxxx, bert.barbe@xxxxxxxxxx, rama.nichanamatlu@xxxxxxxxxx, venkat.x.venkatsubra@xxxxxxxxxx, manjunath.b.patil@xxxxxxxxxx, joe.jin@xxxxxxxxxx, srinivas.eeda@xxxxxxxxxx, stable@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, akpm@xxxxxxxxxxxxxxxxxxxx, davem@xxxxxxxxxxxxx, edumazet@xxxxxxxxxx, vbabka@xxxxxxx
In-reply-to: <20201115065106.10244-1-dongli.zhang@oracle.com>
References: <20201115065106.10244-1-dongli.zhang@oracle.com>

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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