From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 425E3EE20AF for ; Fri, 6 Feb 2026 15:39:47 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 6AC056B0089; Fri, 6 Feb 2026 10:39:46 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 659246B0092; Fri, 6 Feb 2026 10:39:46 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 5859F6B0093; Fri, 6 Feb 2026 10:39:46 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id 46A646B0089 for ; Fri, 6 Feb 2026 10:39:46 -0500 (EST) Received: from smtpin22.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id E8F86B7310 for ; Fri, 6 Feb 2026 15:39:45 +0000 (UTC) X-FDA: 84414441930.22.DD00464 Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf14.hostedemail.com (Postfix) with ESMTP id 68DD0100017 for ; Fri, 6 Feb 2026 15:39:44 +0000 (UTC) Authentication-Results: imf14.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=jMtjddz9; dmarc=none; spf=pass (imf14.hostedemail.com: domain of akpm@linux-foundation.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1770392384; a=rsa-sha256; cv=none; b=3m6auvB4vUeK0LhmnnU20Gm5dOGW5FgZPzVtKj2DA86GcahZBB0GVDRdSUMQP93ZZSibAo EZI8kZzMGhVTHs1vurFGgeCL32Oi6zT1UXwwMVnYmM7kYzzEYAR9Dau5g6ceCMbTmNG0kX pNYWuIUtijKISdhc7V3Leg32KyKodt8= ARC-Authentication-Results: i=1; imf14.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=jMtjddz9; dmarc=none; spf=pass (imf14.hostedemail.com: domain of akpm@linux-foundation.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1770392384; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=YrGY9M4cXXS96KX9gUvIi50yWxDo45tAIdXHDfT0ufA=; b=TUAzSF0rBPF8Q17ArrotQC+bmubIaCM1knTJ8Hd7u7qH+0NaNFjkUb8O4t4s98a5mCzxjV jswcSyOuE4Oi844iNPF9275Ugk0T+tBM6a2hw9ppe8KQM+Qd9HDUauTvc2KR/5zpnTGwJ8 qbZjCn3JuehZuKHyScd5H1ZB3ns4drg= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 6428A60010; Fri, 6 Feb 2026 15:39:43 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CA066C116C6; Fri, 6 Feb 2026 15:39:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1770392383; bh=bd90j/sd92aTHdoa8ZXxYROkAssOxPPzV9TCcpN7/4A=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=jMtjddz91a+R+jFPilZwkdFBMlS6c4CBY/QXiK14FqTKlhaC6lIrzAb9esL+/V7mN CPatgbnyQ8VHIxZon3FEua0y7JDCG8fb8WfJSAnVBEbcadOS1XwZJXtyoE9W8GWdUI YcNcVtGqnsPXhMzOF7Tq7aQWX8eB2FjLcMIB0R3M= Date: Fri, 6 Feb 2026 07:39:42 -0800 From: Andrew Morton To: Cc: , , , , , , Subject: Re: ksm: initialize rmap values directly and make them const Message-Id: <20260206073942.e37ce92b81f0a0c51a1f5b82@linux-foundation.org> In-Reply-To: <20260206163850402hEblYPDgLSG4M7CT1ju2G@zte.com.cn> References: <20260206163850402hEblYPDgLSG4M7CT1ju2G@zte.com.cn> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 68DD0100017 X-Stat-Signature: iz1b4je53tfytu995anht8p3c4ym3cw3 X-HE-Tag: 1770392384-120943 X-HE-Meta: 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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 Fri, 6 Feb 2026 16:38:50 +0800 (CST) wrote: > > > > > > Fixes: 06fbd555dea8 ("ksm: optimize rmap_walk_ksm by passing a suitable addressrange") > > > Signed-off-by: xu xin > > > > The patch does not seem to be upstream / in mm-stable yet. > > > > Can you resend the original patch with these changes included and the > > reproducer referenced in the updated patch description? > > Sure, I thought the original patch was merged in linux-next. I've recently moved the original series into mm.git's mm-new branch, which isn't included in linux-next. Because it appeared that the v2 series wouldn't be available in time for the next merge window. It is a wonderful performance improvement, but I think it's best that we revisit the series for the next -rc cycle. So can you please integrate this new change into "ksm: optimize rmap_walk_ksm by passing a suitable addressrange", rework the changelogs to reflect the discussion thus far and resend the "KSM: Optimizations for rmap_walk_ksm" series?