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 1844D37DEAA; Sat, 25 Jul 2026 21:02:39 +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=1785013360; cv=none; b=DPG+WWjbV69YlDMQ2J/eKUwFdBuuKkp/j4ksjpAIquPXxydxJuLcvBzP4FqTA3z7Sk1t3SiG9stuflnEXKopV2zndmLihp3ija+mNP1r6Rt36+7jJ37Z+V+lX6c8Khto3Dl459L8UI4HnHRLwc9B9uLgYRoBrB5pJ2d4LVekcTA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785013360; c=relaxed/simple; bh=G8UyQpSSr7hx3KQele5DhO9AhR7lBDUtfyry3fRhzos=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=r9VylMEK1hOp69UK5W6tbpZtA6bNk1SyGdhnS1iqy9gnkBPLsNe8O4WJPTs/8GR9bk3pSucQPB1fOEkZ1nV1U3mMCJqxvjmhfb4EeDrW1pq7bRkY2EA1UXzcGLCe2HrL1YYZ2EUPYABYWzDjATGXU6wZIP6HUhU78D7NX56V9hE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Qz/g3ZxX; 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="Qz/g3ZxX" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D0D301F00AC4; Sat, 25 Jul 2026 21:02:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785013359; bh=5v3u710N58c3BJ9vFyK6txOeRAXwyATfa8JLFV4jnT8=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Qz/g3ZxXZrDOSZEFWvkzLaEOGPtwpojxJbqoJ73uGD914LJGYs8uegJ8d8rWgy0bC Sk0x2IerEWScVOg0Sr1xIRSCa9wCMc2O6jAA/Aibf5nQvF95ofcFwVDbeyhuhdRkeR cQrdPU5f2bnNBpk+Oe1j6Buh2a1Rw6n9U/olXni0X7dSmcZZeGf8Ah7sNiJrrUCjkH +BSVqFRIMNrCn31eHKJBnujLp2IkjaH0mwTGLaasHSnT9bkmUcSuxbn38+h7Jy4nr/ OJtBH3NKgjOoLfySBthJ6SemEUm+H+tUjrzzky7jhwIHFuvsbgkTx648B/nK0e+vHx k2YfzOvKEt1IA== 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 13/17] mm/damon/sysfs: pass preps to DAMON core Date: Sat, 25 Jul 2026 14:02:17 -0700 Message-ID: <20260725210225.129944-14-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260725210225.129944-1-sj@kernel.org> References: <20260725210225.129944-1-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 f275a6f73eee1..d7a2b62322841 100644 --- a/mm/damon/sysfs.c +++ b/mm/damon/sysfs.c @@ -2174,6 +2174,23 @@ 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) { @@ -2209,7 +2226,15 @@ 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