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 198EB3E0C69; Tue, 1 Sep 2026 04:34:30 +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=1788237271; cv=none; b=IVuG08guReCKje5AvUhII4FHS0qGJjTUi+w4m2+Iu+xd3xU1iww5EXqbYAG9F3uD3UdgfHTv3mS++veQghWgt1ID/9coOHDcmsFWYcP8+Mm5r2Fvg7xqxjsqR5SqNVJLUy8lkmas9jFm6MNO9ZQC7ARRqmGVMEmwMQg4W5ujOuo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788237271; c=relaxed/simple; bh=r/5mZ0YGA9cKQevwC87ZcBy0+VoOqbLfxq2DPskl60M=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=laH/kuif7rvuoPd3r709ZB180smQ28YeeElzLuceVJUmpbnpYG+SXIFM97Ukne04Q0qDSdGUzhwC0uAK8+uaVvcg42BuxOQdzEaqSe3EnE2O5qTXOj/DJtEwqqAHAndbLbg4tGGq9VCYA/Mqq1DEjhCeX/kSujdzAfXwzC7rxS8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=cTzo9hnS; 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="cTzo9hnS" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CD6351F00A3D; Tue, 1 Sep 2026 04:34:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788237270; bh=gvjVwrKDCl81hZl3Hucl+fQ31jeH/l1NQNbBR2m3K00=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=cTzo9hnSZ3LgHhEjR/PRg6krOJ0vnAKee+e91eXZjd1+zgBolao1R45AAXvM+Bpin N2a+8cVZ7DwGdJTdWrWbQqpzYQI06ql/o3ciZ7B/A41HolKNlGLhjAWzEyQGlyDr7C EefPQGp8Od9xiLkLdPuLPex3wFS6oB0kZ1ylUWIJAWlePD1vX2mp76YxM1vjuOwNTD wtspAgxa+ExZiOnsd9Fsa0sfX8/6xR/Hoj5ALpVenKEfIi15oWKxgX9dcgQ9s6THYR LgkxI4AVJK0U1KW9fvrM9MX2XTn78bEptvlJ1kqdWsHJCqS6kzXfEpfN0sZt4BcSty MUw/2DeW4gnog== From: SJ Park To: Andrew Morton Cc: SJ Park , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 13/17] mm/damon/sysfs: pass preps to DAMON core Date: Mon, 31 Aug 2026 21:34:09 -0700 Message-ID: <20260901043417.2165-14-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260901043417.2165-1-sj@kernel.org> References: <20260901043417.2165-1-sj@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit DAMON sysfs interface provides the files for setting DAMON probe preps. But the underlying code is not really passing the user-set values to DAMON core. Pass those. Signed-off-by: SJ Park --- mm/damon/sysfs.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/mm/damon/sysfs.c b/mm/damon/sysfs.c index 1ecf194f71ddb..494387a9906c0 100644 --- a/mm/damon/sysfs.c +++ b/mm/damon/sysfs.c @@ -2176,6 +2176,23 @@ static int damon_sysfs_set_attrs(struct damon_ctx *ctx, return damon_set_attrs(ctx, &attrs); } +static int damon_sysfs_set_preps(struct damon_probe *probe, + struct damon_sysfs_preps *sys_preps) +{ + int i; + + for (i = 0; i < sys_preps->nr; i++) { + struct damon_sysfs_prep *sys_prep = sys_preps->preps_arr[i]; + struct damon_prep *prep; + + prep = damon_new_prep(sys_prep->action); + if (!prep) + return -ENOMEM; + damon_add_prep(probe, prep); + } + return 0; +} + static int damon_sysfs_set_filters(struct damon_probe *probe, struct damon_sysfs_filters *sys_filters) { @@ -2211,7 +2228,15 @@ static int damon_sysfs_set_probe(struct damon_probe *probe, struct damon_sysfs_probe *sys_probe) { struct damon_sysfs_filters *sys_filters; + struct damon_sysfs_preps *sys_preps; + int err; + sys_preps = sys_probe->preps; + if (sys_preps) { + err = damon_sysfs_set_preps(probe, sys_preps); + if (err) + return err; + } sys_filters = sys_probe->filters; if (!sys_filters) return 0; -- 2.47.3