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 7B164107BCEE for ; Sat, 14 Mar 2026 00:51:44 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 79F776B0088; Fri, 13 Mar 2026 20:51:43 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 72CC46B0089; Fri, 13 Mar 2026 20:51:43 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 62E676B008A; Fri, 13 Mar 2026 20:51:43 -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 5052B6B0088 for ; Fri, 13 Mar 2026 20:51:43 -0400 (EDT) Received: from smtpin29.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay01.hostedemail.com (Postfix) with ESMTP id 1FF0C1C51E for ; Sat, 14 Mar 2026 00:51:43 +0000 (UTC) X-FDA: 84542840886.29.9424B02 Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf02.hostedemail.com (Postfix) with ESMTP id 474788000F for ; Sat, 14 Mar 2026 00:51:41 +0000 (UTC) Authentication-Results: imf02.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=OUVw8RPc; spf=pass (imf02.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=1773449501; 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-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=7OWFP/yBtS9XqNOLU1HW0fExRdnGqJ0bAz8bsDQQtMg=; b=fn/feUVfcLyN02eWVPNF4tr3mUMi/U2PX5smiXUSRkbqyW/XE9qTkiV6FFMgUIxq+ePCiI Z5qdTuTwEpnsljCJspoPju72ryYngy3EB80eks/2ItFE8SXiKc966fmTKwAvZowAJVP1/y b9bGorapVx3drP9A2WfKcVrjxA46dZA= ARC-Authentication-Results: i=1; imf02.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=OUVw8RPc; spf=pass (imf02.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-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1773449501; a=rsa-sha256; cv=none; b=cK53MR8Y4AOSTRxDQTORQNjk1MqWi45PZ1D+Xe7AgN22J3Pl+ocwGNy+xRLKWPDwkMeoTv GPnFjdV4HjQD2Gpwva6ptNL3fp8RtxLEEEBPf45F+2HjbVfuUyVnNzAsn8IWIWrCq2UYcO XsK/1/qqtzyOXc6bdLiVCZf6JXrpxoo= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 946E760131; Sat, 14 Mar 2026 00:51:40 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2815CC19421; Sat, 14 Mar 2026 00:51:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773449500; bh=5oFToVeccDAd2N9DgEaFKQkj2YprgYCHqwTI2QbU0Cs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OUVw8RPcEnZ9kdFwzRj9eGdZRrAnx8Lt8bGndKPK3aiA4BRzgE+SCWnsWPMRiaqvN ubfz1jYBIthPu7W0fr0Z/w13MYZ7ZE7PzNZ2btspiU7B2zkucDcBWFMnVZw4wV16eR 7Rq5JyeK3eQU+zCbnaCviVEFtkcfAAQcb3svcgGe0loQQRx2Z1Hw1uyK61v7Lk5/nL jN0UOEFqcwYgyWPfTFgUVA4j1+Dbrmchq7a/r35GdTHyxJ5upA5CyPgAJAC6NjUojr 6PA46gIywrB76Bp0Zvft8//idCGLjyQ0kCcIJXHq5oU/ii8vfcEB09eSU6WpRrnHRS kXmHn/QDCBsjA== From: SeongJae Park To: Liew Rui Yan Cc: SeongJae Park , damon@list.linux.dev, linux-mm@kvack.org Subject: Re: [DAMON][Question] DAMON_STAT and DAMON_LRU_SORT module parameter conflict? Date: Fri, 13 Mar 2026 17:51:31 -0700 Message-ID: <20260314005131.80825-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260313110953.37465-1-aethernet65535@gmail.com> References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 474788000F X-Rspamd-Server: rspam07 X-Stat-Signature: 8gibg96fimnxzaiybqyxs19gq8hpk15g X-Rspam-User: X-HE-Tag: 1773449501-555130 X-HE-Meta: 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 THR4fhdO YtpE9IXp/Mhq7YF1bcX+OwWkiCFSZfaoDIUmVUIHa/7VTwWMp2tV8L6hlZ081IHfoO6e+NyIjctz+oLmRRsYpUoOYDAFIxfQ5qLC0uBjd6BVmfI2jmtvslUxMMRgcKKyZAEMN1Cr9QR1ZtSEftWr9XFW8NqzdQcrtA4mWpcaJkU10bAt8b+mnz44snwCHKdkpqMH182wnU6F2At7VhnE6a0tQezIKwEqsxF2aYv01nzI7JCnsDCqMPNtSfw7+xPmsN2Ky8wJq2BqavsQYLd2WnKxOIHRRjdnFZNvnw5DTIwg0ntgSacPlFryt+xThJrb9G6cMPwz8qZIPOEoTHZ1SjDDD+w== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Fri, 13 Mar 2026 19:09:53 +0800 Liew Rui Yan wrote: > TL;DR > ===== > When CONFIG_DAMON_STAT_ENABLED_DEFAULT=y, enabling damon_lru_sort via sysfs > "enabled" parameter returns -EBUSY. Is this expected behavior? If yes, should > this limitation be documented? Seems this is a duplicate of another similar question [1]. I believe our discussion on the thread answers this. [1] https://lore.kernel.org/20260313111702.38667-1-aethernet65535@gmail.com Thanks, SJ [...]