From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 656442E8B67; Tue, 14 Jul 2026 04:34:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784003686; cv=none; b=SLQKG1KALYz1BiLoKKsOEzFklijwif1mspBePA1DSD3AYn9pynQmy7gTWTnbXzfJoydTLwNyeUE17wNHJqhUz5RUDvDlMZOPmnTdW185KjMk9vLHIiTDkjtFQK8/0z9yJODjaYoj1Nn41j4AdTQj+8V+pkGPM/o1QIoxbBi+FPQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784003686; c=relaxed/simple; bh=dRXX2J+TsX65dbJuv4S6AqbJqGvS7BCYhLBktYK5WKY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=s5Wcxp5CicdufOYp812SRhxRYSok+PnbprVG8samCTXNoByef11e7Rp84JPoQUjE0nTs+xRAZRaT/sZNIhbRyjsYMIWAZSJNJoKv4j8Gi7IFPd544K7KcNKe+dJuApsfFpcex6xqd4+fmAIuEvvDBjvq9o10yDXHbOHuKi1l1Js= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=mod0YMvx; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="mod0YMvx" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1CF2B1F00A3E; Tue, 14 Jul 2026 04:34:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1784003685; bh=UrQWXD0bifnsUsYgqcN+mYTdFMuNVs+95dSBQVBP0NI=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=mod0YMvxWwnNieAilRhZlXa4fBY4k1B/jJ17n9UWCbmMi8tkIdmEXYbLd0hemF6zl HxM2L6kryfF9ldwH07+K0/KgPRPkPiFUU4xuZSIjEvAdK6Bs5vjTA7Xn8GTtV0jaPr +wJAGhSpxF0iREV3CuCo/s5JHxuGknG0grRFJYdh+PhcuKRCWH1G2c35vfT7cDjGgs 2jl5pUDv6kjRvSOtroA90n4qKz3x1JOGpv/XLQpTaDf8vvvzFR+/ANK7xoSGHWHfJh j7DJ2TUof92FhIrcYDeuWCrxBfjHJ3b2irKbJ1dI384MzRF7eA8pui8BffCThCxpJ9 lLO8+QNGPv66g== From: SJ Park To: Cc: SJ Park , Andrew Morton , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH 09/10] mm/damon/sysfs: do not directly access damon_ctx->ops Date: Mon, 13 Jul 2026 21:34:35 -0700 Message-ID: <20260714043437.95811-10-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260714043437.95811-1-sj@kernel.org> References: <20260714043437.95811-1-sj@kernel.org> Precedence: bulk X-Mailing-List: damon@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit damon_ctx->ops field is intended to be used by only the DAMON core layer. DAMON_SYSFS is directly reading the field to find if it is for physical address monitoring, though. Use the API function for the purpose, damon_target_has_pid(), instead. Signed-off-by: SJ Park --- mm/damon/sysfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/damon/sysfs.c b/mm/damon/sysfs.c index 60a1a9e4ada34..228ceb4df5f97 100644 --- a/mm/damon/sysfs.c +++ b/mm/damon/sysfs.c @@ -2051,7 +2051,7 @@ static int damon_sysfs_add_targets(struct damon_ctx *ctx, int i, err; /* Multiple physical address space monitoring targets makes no sense */ - if (ctx->ops.id == DAMON_OPS_PADDR && sysfs_targets->nr > 1) + if (!damon_target_has_pid(ctx) && sysfs_targets->nr > 1) return -EINVAL; for (i = 0; i < sysfs_targets->nr; i++) { -- 2.47.3