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Received: from willy by casper.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1u3d5U-00000005mEx-1VUn; Sat, 12 Apr 2025 15:48:08 +0000 Date: Sat, 12 Apr 2025 16:48:08 +0100 From: Matthew Wilcox To: Barry Song <21cnbao@gmail.com> Cc: akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Barry Song , Baolin Wang , David Hildenbrand , Johannes Weiner , Oscar Salvador , Ryan Roberts , Zi Yan Subject: Re: [RFC PATCH] mm: don't promote exclusive file folios of dying processes Message-ID: References: <20250412085852.48524-1-21cnbao@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250412085852.48524-1-21cnbao@gmail.com> X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 0E3BC140006 X-Stat-Signature: qj7fe3s9grsmm1p54mw79gmf4quqf1us X-Rspam-User: X-HE-Tag: 1744472894-732175 X-HE-Meta: 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 hAsFHJwP Q7bGdA3DpnE8L5txqB0jo0AC4p6CA+KBvK/MGIje4oqkfbJhcNCyP8MLOmuWClEz5Jbe4yPLhKFl2N/GsQH2sl5bwFDrvRqxHH2KLDO088YhKsDKuqw+8iRvg1R9hpe/ogkXnlz2+p4x5i8AKa7a8R51ugqMqq0HwHrmY1dE5Mw+LWn67+1mRCfdK4uLro2jX4OCARN6B6UNkXMPbiECM+yP8w6nMefXxxAQyir6S95zekuE= X-Bogosity: Ham, tests=bogofilter, spamicity=0.008229, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Sat, Apr 12, 2025 at 08:58:52PM +1200, Barry Song wrote: > + /* > + * Skip marking exclusive file folios as accessed for processes that are > + * exiting or have been reaped due to OOM. This prevents unnecessary > + * promotion of folios that won't benefit the new process being launched. > + */ Please wrap at 80 columns. One easy way to achieve this is to pipe it through 'fmt -p \*'