From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="qnOv5Qv3" Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8D238B9 for ; Wed, 13 Dec 2023 08:27:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=Us7YTN6WMg1UsHkPpL8fh2VaKDzONXOhFAqiscEUm28=; b=qnOv5Qv3PAnpQs4tDaviiVpKUd 91cZhJzNtcgCwhpE/7MDv9V8tb0GAJ+/usEJbK4zAMOQV36ZnrtS2Jo/MH2DI0lAQx7hp28lunp3N AbuIx0v3mvEJLXBHfChNhI0ppeaGjjwMJbZKk3JcwrXZgNaz7nbrycJLIltGW8RF9ERbJ8GAHywPd O7S5YyX4d0WyQIlAY8qmkhzrTl0azgLTAEBd533yvtjK7act3OtA90QoN3Woh8IvTgauG6k0HjLep 9MXZs964JzkVakpJO/eXyEKr5NZ7tbx4Td+xbUGJHs8OXQoeB2e1u8kejbwutt/jNPNEqKdRT4qDM l/5E50Dg==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1rDS4s-002Bed-2R; Wed, 13 Dec 2023 16:27:18 +0000 Date: Wed, 13 Dec 2023 16:27:18 +0000 From: Matthew Wilcox To: Yosry Ahmed Cc: Andrew Morton , Johannes Weiner , Michal Hocko , Roman Gushchin , Shakeel Butt , Muchun Song , cgroups@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH] mm: memcg: remove direct use of __memcg_kmem_uncharge_page Message-ID: References: <20231213130414.353244-1-yosryahmed@google.com> Precedence: bulk X-Mailing-List: cgroups@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Wed, Dec 13, 2023 at 08:24:04AM -0800, Yosry Ahmed wrote: > I doubt an extra compound_head() will matter in that path, but if you > feel strongly about it that's okay. It's a nice cleanup that's all. i don't even understand why you think it's a nice cleanup.