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 CC11E3D8915; Sun, 26 Jul 2026 17:39:48 +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=1785087590; cv=none; b=hz987+jAC4BR3sixdret3ThR2Obsikt+p32DKj9eBndb8WDo30u15ekJ2rSB4R7O5Ytm0GITYTvk/Nkl47mQ6LelOaHSXPRsUxtMuHiTuMeU7Y0LnelFiRpG3s7Mfqj3Yuphsh/5FaHy+3qBeWGgExLOcyY+r5u29wHXCPStwc0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785087590; c=relaxed/simple; bh=G8UyQpSSr7hx3KQele5DhO9AhR7lBDUtfyry3fRhzos=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=rsl3DFvj5jpuwbnUiK6n+8SpC7Dnw1ol6TGHJIUwaT8hfdiIUgfyiqX/PW7Zm6ECQpnkAm4buG+NjD5Vn0RAi9rt/YQ16e4UfzU71AS3Kjwm1+aAWt250T0ut6lcHYHHZWMVYJBJ1MbOCDXe5ACEVbb1aObB/5848vSzMv8XaqA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=VDMR24we; 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="VDMR24we" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8D61E1F00A3F; Sun, 26 Jul 2026 17:39:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785087588; bh=5v3u710N58c3BJ9vFyK6txOeRAXwyATfa8JLFV4jnT8=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=VDMR24weEPDS5GWYzlJdIQ6Od8yYpTFdlDpKGv3upAnjCAkSysFCdrGH3RUZpFWZ8 cwihFHXxbpAyCeTY6MPqhGXiOMqazBpjaAXoe1EhIgwp8jDmB1oOFpvHOctWkcBiOn JsbE8oCQCCnpxRNF6lJV4WKCG0sJ9TZoRS+YhP0YD45Vt8c+p9361gfCM/gpAG0EIl U82snu6JVmOe6eL0SP3A7cJ0MyABGP77DR3mFdH51Xh/rFCB3rT75l32T0BAl1OwHT A8MUBISnhuoqvjLM5siCgBMLOakbQYyneqJ68/TRRAzx8aP7Dxp1v0Jo8gTv6nXGFn 4l8ZrIQB8tvxA== 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 13/17] mm/damon/sysfs: pass preps to DAMON core Date: Sun, 26 Jul 2026 10:39:29 -0700 Message-ID: <20260726173935.94046-14-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260726173935.94046-1-sj@kernel.org> References: <20260726173935.94046-1-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 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