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 01C8738E5E9; Tue, 28 Jul 2026 04:12:57 +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=1785211979; cv=none; b=d5g/VvfiIviYtLfbuvuLfrpVLMaPU6Ydq3yY4O10hxQNOfKV2mKKszNGD/YCRB53yaRRc8xoYNMQH6mbOjtx8sR/HpqgZNLC/ve5h0jIa0XIPVnIxcIDTsZzUugcqpUjUgYyp1rUJ6heQnAXJ4PKi2Pvjn5hPx4/4IpiZv/XO7o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785211979; c=relaxed/simple; bh=2p2VVBvUhnG1Sa0Gz6zzt6LmGpifGCLecxKD1eCWD7g=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=h/19NA64aiBW1pVogXcjMpAQcirK1d+9cznC595Pzy4Qg4bnTFw+n8MaB+133d8RmE5rC0U1CWUAI4/Tg25FGjVLgEUHsWgz+RU3XB9S/w5TtI68mNLcoJ8CBK1JO48+GMqEa+GLBu68jhYCl8WyUQUsoTWkNL9T7SrUT13qT1Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=mcpp4QfN; 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="mcpp4QfN" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5D7D41F00ACA; Tue, 28 Jul 2026 04:12:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785211976; bh=ASGSrOhiTqeMR2TBi/rXvzMlAFD79/gguOPL/F3Ka3c=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=mcpp4QfNtxihZYAleE21Z3Ri3KIkrvTcvgY8y9aHzD0MSPySn4epb62Nx0mHkydav Xslw8Z4GhYwxQyHlAElP9bYx6/bR9Q8oc5scIwqXo+Yk7rstTqrUDtykRnCGnyld+T Elwa7AKysvWyhX4kUVdyVMnfNFnW0mk7URKm6vGCzMexSWdv1XD0JAzKmke+bdvfQU rxfNx/+BxRV7l2kBt/guaO/bG6uhESzsNEPsteMM25EFiqIa8qLBDzGVVQ1kKZREwI UWwZmyNadizHkFKUT3d0t8BT3C9aXxuRuKSCw2MbY0dyiVOeguEd26fuD60MvFGx5r UnmfTfyBly98Q== 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 v2.2 13/17] mm/damon/sysfs: pass preps to DAMON core Date: Mon, 27 Jul 2026 21:12:34 -0700 Message-ID: <20260728041242.187380-14-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260728041242.187380-1-sj@kernel.org> References: <20260728041242.187380-1-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 c0130843223d7..d02f5f8ceae5b 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