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 1B6893F4847; Mon, 27 Jul 2026 14:38:37 +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=1785163118; cv=none; b=Gy77z5ie4/NR49c3t7x3AoVC2RG9/pnGckF/nI0YvM5rftBKd7QNR2BA4Jc4R5aWMIvbLe9K8yZ8MZf9LSUZxoKv0vrHnki+WJy551TI9ff7Zc8SVJXPPoV+HlWyw5+6S4raInRN6FSl2TYQQisNHIgzyz5IfzF14rr+1WmmaCs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785163118; c=relaxed/simple; bh=UCnmZJIFWLAyA2V+BxDBrCEglrwT+PkL34Q88xrhGDE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=snGGF1eimKOw4P1TeVS7wcSEMqH8ko0YT73hw94QYuCHLhc399xszBAj0g2UORIxoxL3AQcC4bSTE7Vp9MSsp6QTQiruiawxUa8BDXUPQrg76sqQ/W08m10x9Dh3l1ll6lxWeJZUFba2mpqJ87vadjfBE8hieSsQADgtRRSqMBE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ASIfN2Hm; 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="ASIfN2Hm" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CC4A81F00AC4; Mon, 27 Jul 2026 14:38:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785163117; bh=3IJAHoEq/HxxwTqavkeHm1rK87WzNS/lOqxmVc4kOBQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=ASIfN2HmzFDLPKauEvk+aTbeOju5g2NHdiFiUPIwsEy3Ru14mfA+g5ArrLP9D1glA Y+uZU6bkNK+KsesYculdkRdAEBJzfJ3eqkfKwEaUiEaN54hMn8LS6NwgJJfSd/Izn5 vGyWbcPFGSZL2W/KTNMrS1VSLSqzs7UHQnGkMrKbOHIPEi0WTgha5gmiQrBvnv62LL 4EmNnxdvNKWqqqOS0c58zsapG6MRN1WasFzTguqsx8nIStsuk6YDTDNAKozQbNwX0p 5H4qnCHiTSiGbiQnypLNNVeaAe0eXJEsdEaGcaJ5CN5D7YgMKpN5h1QcVpOd2Dx2+Z YCjrVisD9D6FQ== 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 v2.1 13/17] mm/damon/sysfs: pass preps to DAMON core Date: Mon, 27 Jul 2026 07:38:22 -0700 Message-ID: <20260727143829.86236-14-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260727143829.86236-1-sj@kernel.org> References: <20260727143829.86236-1-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 0173f37fdbf3d..3ef6b07cdb5fa 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