From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 513A842668E for ; Thu, 30 Apr 2026 14:22:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777558957; cv=none; b=SGdapKC0gUyROJHfYlH3FKfna9FWhDDd5hslcK/0txeSISDyYSxMSiLBXx8iaExFtpNbcx5L6DcX6MoVhBp/Y6Rix1AxI6kSwTFJk+aqJTs2GEAAng7jQChENCLOaFcDe+646Pjd0gt/mPL1foS4LRTMTGd+yH9L0O7AFzBndQs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777558957; c=relaxed/simple; bh=3UVBOBagPXYOyYlAsvxW9a8qwwwtxiXGL65ZGxXUs0g=; h=Date:From:To:Cc:Subject:Message-Id:In-Reply-To:References: Mime-Version:Content-Type; b=cmUGTVdqvpGMyW2ckh8Y62IrooT216d4IO8tW3ZWN4NLwpfc+Q9rgOZ+BHCP4zj0k1TqGpCcFJaMbO8kC43E4sVMAd/zeObbpPQiDSom/R2zptU5zjKzilbx80HAmI7CQkw8QgAeiExWV9HB0wk8aDtkYjZGH4eBFUqv8HsT9o0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=lwIdnL0V; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="lwIdnL0V" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4CDDBC2BCB8; Thu, 30 Apr 2026 14:22:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1777558956; bh=3UVBOBagPXYOyYlAsvxW9a8qwwwtxiXGL65ZGxXUs0g=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=lwIdnL0V6B1xgbXh1rsqi180ml/YIQuwwmVrz8pReUB3hO+1SFrjb31YvG3wuQL3U pMkAfwtAgAxI1epLbRAhdgm49Cf68DKmh9Q551UbXS9SNeTcbyPdYTnSGopt1IB9oc EjXZUhVZ+wVon7RjnY9n+1msH7KPAxbuFiO9sTzs= Date: Thu, 30 Apr 2026 07:22:35 -0700 From: Andrew Morton To: Vineet Agarwal Cc: hannes@cmpxchg.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, kasong@tencent.com, qi.zheng@linux.dev, shakeel.butt@linux.dev, baohua@kernel.org, axelrasmussen@google.com, yuanchu@google.com, weixugc@google.com, david@kernel.org, mhocko@kernel.org, ljs@kernel.org, linuszeng@tencent.com Subject: Re: [PATCH] mm/vmscan: fix delayed flusher wakeup in MGLRU Message-Id: <20260430072235.006c67550ab3d182d6cdce19@linux-foundation.org> In-Reply-To: <20260429185441.486804-1-agarwal.vineet2006@gmail.com> References: <20260429185441.486804-1-agarwal.vineet2006@gmail.com> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Thu, 30 Apr 2026 00:24:41 +0530 Vineet Agarwal wrote: > MGLRU currently decides whether to wake flusher threads in > try_to_shrink_lruvec() using cumulative reclaim counters: > > ... > > Make MGLRU use the same per-batch flusher wakeup behavior as classic > reclaim by moving the flusher wakeup into evict_folios(), using > batch-local isolation results from scan_folios() instead of the > cumulative counters checked later in try_to_shrink_lruvec(). Thanks. AI review asked a couple of questions: https://sashiko.dev/#/patchset/20260429185441.486804-1-agarwal.vineet2006@gmail.com