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 9A7F8107BCEA for ; Sat, 14 Mar 2026 00:21:24 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id C83026B0088; Fri, 13 Mar 2026 20:21:23 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id C30D56B0089; Fri, 13 Mar 2026 20:21:23 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B32FC6B008A; Fri, 13 Mar 2026 20:21:23 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id 9FEE16B0088 for ; Fri, 13 Mar 2026 20:21:23 -0400 (EDT) Received: from smtpin14.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay05.hostedemail.com (Postfix) with ESMTP id 579315889D for ; Sat, 14 Mar 2026 00:21:23 +0000 (UTC) X-FDA: 84542764446.14.17465CE Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf26.hostedemail.com (Postfix) with ESMTP id A9AD3140009 for ; Sat, 14 Mar 2026 00:21:21 +0000 (UTC) Authentication-Results: imf26.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=GlMnrYsf; spf=pass (imf26.hostedemail.com: domain of sj@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=sj@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1773447681; 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=hKQ6fWwL0j8N5lh7dX8p/uAAVUPvBMVhKznm/zW/5h4=; b=7ZfjUdOCFwW3BCeWoxqxnV/RHpoXwFDqU+aM7A+zFtP3vlbAeo/mp6udHmxYpTSQCVutzf Mg41bM/nVseGUivHlhoKD/7jykJzgBll/KlycCTRZMeBNHoeYWzQ85XCoP59oqHDOvA3nU wFGuefmfZp/FME02YJ6Ux43Ksr8L7v8= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1773447681; a=rsa-sha256; cv=none; b=18ROQn6E3lF/AziYtepAu7orZBnLoj3EYaLslSZR5iAqd3ZQEuS6IUjXkUt+WPi5Rk/ySQ aph0G2UTmL/+ACwUGYK+GRIQNDHXxTlcV/c504jVIKS3CX7DndGjlLI47IPD1JN0751qzr 7bOakVOtXDhCeyqDtBdt9h5zTAvK4IM= ARC-Authentication-Results: i=1; imf26.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=GlMnrYsf; spf=pass (imf26.hostedemail.com: domain of sj@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=sj@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id DB37560008; Sat, 14 Mar 2026 00:21:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6A9FFC19421; Sat, 14 Mar 2026 00:21:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773447680; bh=UJbfjXt9aVSOiW5buRYz/cMornZh+o9XMfOB8wS5ODw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GlMnrYsfkcmXiMzp0R9Fy9lNXxphl9+8SdFOUvmZBrJb7A5Yjy9BNtfgTWiXQEyvP 5XU3wmEKnGqzQ2CCTIQ8kc+cWYraMBJgUVR1DAGkrP4VKjUwdJg+GtzekpmvffYuAB 65CFALocwvsnhOTwOukU2smnhLdAgLznSpIGtUqfxH/VQetRYSuOZwFnp4N3d9crBN eW1edtyYB+u+/enfauhYREDy3OPqqlI2aaqwCnVnydA1rs13cU+SrfW2L9KQwXreBh meqOa07Gc0+u0tpXdzhDVrZ9ukUva90nUNAt14/9C0s8eITbdOZMqIvKjslcJhBQbT w/8fVKxQLRbsQ== From: SeongJae Park To: Liew Rui Yan Cc: SeongJae Park , damon@lists.linux.dev, linux-mm@kvack.org Subject: Re: [Question] mm/damon: conflict between DAMON_STAT and DAMON_LRU_SORT? Date: Fri, 13 Mar 2026 17:21:17 -0700 Message-ID: <20260314002119.79742-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Stat-Signature: pzrnkwpxmfu6j6n3f59hggyxaa5so3gy X-Rspamd-Queue-Id: A9AD3140009 X-Rspamd-Server: rspam03 X-HE-Tag: 1773447681-914638 X-HE-Meta: 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 0Ii1yaxb HFw+rA4+3YPO/bcf/j0gNDSMPFbWXLx8bVCQTn/nHl/0LxHuc3ePRosKIK7XGean+8DizqDBmk4ytfMsLEZfpROnHX6m4/fvtI2DSXPvPxFM6HourlJSL15zEs68HSj1Wa4aieKEyK34QqGmh8zbILvsUL1R8UOIq50m6FcoJQFCuCkTt4WGYY6cdy97CKKQlZNwsDV18GztWfOtG+/K3VjaToGo78CpLffY2ExMsrK3wO0Ld1CjXNaraF99k+SrK8fxcNbRKsbbSbxynEInMRHmvqGFb7hwTPn+6fju/bPsyhdUqGuyvJOZfVPI2NUP/GJrZ/DhIKVn0MHomFP/ntEqfO4XEc5ExloxJvvGe99dJL1e6pb/YLCF+kgIJtQIviHVU Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Sat, 14 Mar 2026 03:42:35 +0800 Liew Rui Yan wrote: > On Fri, Mar 13, 2026 at 10:52 PM SeongJae Park wrote: > > > > Yes. But, I think 'Special-Purpose Access-aware Kernel Modules' section of > > Documentation/mm/damon/design.rst is a better place to document it. > > > > Would you mind sending a patch for that? > > > > Hi SeongJae, > > Thank you so much for your quick and detailed reply! > > I'm happy to send a documentation patch for this. As you suggested, I'll > add the explanation to the "Special-Purpose Access-aware Kernel Modules" > section of Documentation/mm/damon/design.rst. > > Additionally, would it be helpful to add a short note with a :ref: > cross-reference in Documentation/admin-guide/mm/damon/lru_sort.rst > pointing to that section? I think this could help sysadmins quickly > understand the reason behind the -EBUSY error without having to dig deep > into the full design document. Yes, I think that will be helpful. Let's do so! > > I may need a few days to prepare the patch properly, I want to > familiarise myself with the reStructuredText syntax and the current > design.rst. I'll do my best to send it soon. Is that okay? That's perfectly fine. No rush, take your time :) > > Thanks again for your guidance and for maintaining DAMON! My pleasure! Thanks, SJ [...]