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Thu, 17 Apr 2025 07:54:04 -0700 (PDT) Date: Thu, 17 Apr 2025 10:54:03 -0400 From: Johannes Weiner To: Muchun Song Cc: mhocko@kernel.org, roman.gushchin@linux.dev, shakeel.butt@linux.dev, muchun.song@linux.dev, akpm@linux-foundation.org, david@fromorbit.com, zhengqi.arch@bytedance.com, yosry.ahmed@linux.dev, nphamcs@gmail.com, chengming.zhou@linux.dev, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, linux-mm@kvack.org, hamzamahfooz@linux.microsoft.com, apais@linux.microsoft.com Subject: Re: [PATCH RFC 05/28] mm: thp: replace folio_memcg() with folio_memcg_charged() Message-ID: <20250417145403.GH780688@cmpxchg.org> References: <20250415024532.26632-1-songmuchun@bytedance.com> <20250415024532.26632-6-songmuchun@bytedance.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250415024532.26632-6-songmuchun@bytedance.com> X-Stat-Signature: u6kpmtkneyxmzf4w39oocgmtfyh73soe X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 5CF021A000B X-Rspam-User: X-HE-Tag: 1744901646-957806 X-HE-Meta: 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 ODoCx9Ej 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, 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 Tue, Apr 15, 2025 at 10:45:09AM +0800, Muchun Song wrote: > folio_memcg_charged() is intended for use when the user is unconcerned > about the returned memcg pointer. It is more efficient than folio_memcg(). > Therefore, replace folio_memcg() with folio_memcg_charged(). > > Signed-off-by: Muchun Song Acked-by: Johannes Weiner