From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8239BCEBF88 for ; Mon, 8 Dec 2025 06:30:38 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id BC5D26B002E; Mon, 8 Dec 2025 01:30:24 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id B005A6B002F; Mon, 8 Dec 2025 01:30:24 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 9A1746B0030; Mon, 8 Dec 2025 01:30:24 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id 876FD6B002E for ; Mon, 8 Dec 2025 01:30:24 -0500 (EST) Received: from smtpin13.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id 58341134542 for ; Mon, 8 Dec 2025 06:30:24 +0000 (UTC) X-FDA: 84195329568.13.DA6F4DE Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf14.hostedemail.com (Postfix) with ESMTP id 9BBD210000D for ; Mon, 8 Dec 2025 06:30:22 +0000 (UTC) Authentication-Results: imf14.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=aurXw1mb; spf=pass (imf14.hostedemail.com: domain of sj@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=sj@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1765175422; a=rsa-sha256; cv=none; b=UVH3UNgimbjeehsLY75/jz5PeYg7Dvu+o8QsHLJX7q17A7z4ac0uvqttNTT0pu01QHG7BR R1ZId8QWaUqmsRSO08GCnApUf3/IdDwF+NOgeOvv8ia3VvhTfWGcKca/bmNYQ4XRhihNHo sflgXa3LLBIwZY4x1qk8KNDUiDarvN4= ARC-Authentication-Results: i=1; imf14.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=aurXw1mb; spf=pass (imf14.hostedemail.com: domain of sj@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=sj@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1765175422; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=4hzMK7WrIEkt/tycKb1y64Iji3zgOP29tA5gxpF80Qo=; b=y1mkvV5il7MZ3COqlJeUQjOfR+q7LJbOYf9EQXSMa73/O+fQPN2BtwWnheeynHvtmS4P+s 82dQfakOPE0vE6cJ6JdChoz1/zCGDZghb9HxMOv5NXg+ki6XWcDj7+EigQder8DnWUOdn6 +vjRoZ9JW+mNdi4oz5MdgDXNaW4ttH4= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 28FC760147; Mon, 8 Dec 2025 06:30:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D5D9BC19422; Mon, 8 Dec 2025 06:30:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1765175421; bh=WawtKcdhhI5OD3ibegWa6UMwH2uHq8mmOHPfQB4SyPw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=aurXw1mb7+DNtDpJv9c+X16hkpu7iLBKNTqx3ERbpveUEL1bLXLkCTPqiCj4TmA61 sdDkXckh9cBhOeKgjKPG5C4RW0kPzYzcIXKCJa8nnP5u5nOCXNSTx2QctBlb/swGvs /iBJ3qv2lXDDAh0vhogHIF4P3J5MvZlunpW88MFJAL6sZvdwvXN6tWNDAd2axqY46/ pFTzuRlkJPWy/c4Gp0QVSh/o00y7K78T05ZGpPs0yzpxZR/iB0gKVvh6/7yQ3EdtoF hdtWm4tjFlzkvelHHAY/sNDo0yA7mqnL6/KVEoqaAsA+3M+hUOKHlY7uJlI97L6nFA Stny1jirD/d9g== From: SeongJae Park To: Cc: SeongJae Park , Andrew Morton , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v3 22/37] mm/damon/sysfs: implement cpumask file under sample filter dir Date: Sun, 7 Dec 2025 22:29:26 -0800 Message-ID: <20251208062943.68824-23-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20251208062943.68824-1-sj@kernel.org> References: <20251208062943.68824-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 9BBD210000D X-Rspam-User: X-Rspamd-Server: rspam12 X-Stat-Signature: x79dkor3z6rrj3tygmioqmug7tjmn8ab X-HE-Tag: 1765175422-542744 X-HE-Meta: U2FsdGVkX1+R0ac1Nd5uYCYiulhMuJ+kwFFdFDcnZJGddEAR4x2pb9cif2vncYTZoZTUezK6ZRSdvah60UUviSLtJTu2j0YVMi7eq5a7vHqrawLZDF9EBwO3d1AWyFeURvZL2nVTrk7PJFsxx5GofeAzSy+gWMWR3W6R6tA/I09kmGUKTA8Q9FcJ5QbphC6BVTl5C5mScBrNKNKYodyfPrD2gQUjAr1GwzfGEqEtahJiQHWTbiZVa35/uDncg7rrNPBX6BqixjnHm09XotpdQZzCa1R40OsfrugQX56tHeqPZ7SkM8FMRmoutNOhmmCIVByYufS8Zc0IKJGS6gfumvpydOkt8UEtRNJwLN75axGGblk2Ohg/6FOmKNYx+52nkJL8TVjDWJrWb78UbjcTk4u8jyTleqECE9jBAdWxIaooTeEIPFOVUVZUQgLCsCPQl/MbblZGTDhOBPkW1Ug/p8hxN1ageu4RYLmJkJMBgvLlP6ZoSQU3XzZTZbI5m+RzQxMENaBA3C6PkbLmj3Ciy+nqyJVATGop/qNVoxIGhVf3Y0mVpi2QyG90dgievksoOxAD8ecJ438YuPlSosU04ELHYZlPz2VC6bh2mZIFGFZTC9zWeiE+NqTz4WnZSA/NlFXxylMue9iHarBbTAPsRXveCNpumz8TWjhpcaS880nYF0MYGoGQ6DUUNA4/wJp4KluUS0Y1xY0w1eGLgS8WdVLaMyRbW4hzI0WDXJtsMJ7EdUQB7nwcUUHEGlC42m+XY5XG+JaL9Mg0QslLs9OKRO3He9jltutydUN9RO3HnYPasd+p7xNXS3Ks2rRPWgwowdbfeyhK5gSCIpuq4UkiRUOV+UN600nTVXz0jDtNoAcH8FosPaVoay1tAhvtFibnbfKSi0Ifq+yRV0EFK6buy423OMvIfoV+0JPMgBzYNZVkGHgUFCoXHEhlV3G5GPhBWeetLZxXfOqdPcUaxyT GKBZaLtC FI/dcqz1kTMe07HmDegXiCIAKn4UAoCo7jZNjAInJUIEUWLw39D0wHKDQ2+PCN3/MrOphUVfX9rhmcDaETT3wpayDeNe1up9mrpHSbzBTiMldLIQRYUU+rmccsI7YvOHaM3LfRyGzMHmPdeumP0dfAfQzeweaFzKSpdQNrMdIagLFUIigeY14TIz/kp55Mp3mfh6r2LZxk2yEChhMV8R/lCpDQj4a8ogBJNedrUJu3CWKp/o= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: The DAON sample filter directory has files for only common properties. Add a file to further specify the CPUs to filter in or out. Signed-off-by: SeongJae Park --- mm/damon/sysfs.c | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) diff --git a/mm/damon/sysfs.c b/mm/damon/sysfs.c index 74594e6e461c..d6b0b6513fd1 100644 --- a/mm/damon/sysfs.c +++ b/mm/damon/sysfs.c @@ -758,6 +758,7 @@ struct damon_sysfs_sample_filter { enum damon_sample_filter_type type; bool matching; bool allow; + cpumask_t cpumask; }; static struct damon_sysfs_sample_filter *damon_sysfs_sample_filter_alloc(void) @@ -765,6 +766,19 @@ static struct damon_sysfs_sample_filter *damon_sysfs_sample_filter_alloc(void) return kzalloc(sizeof(struct damon_sysfs_sample_filter), GFP_KERNEL); } +struct damon_sysfs_sample_filter_type_name { + enum damon_sample_filter_type type; + char *name; +}; + +static const struct damon_sysfs_sample_filter_type_name +damon_sysfs_sample_filter_type_names[] = { + { + .type = DAMON_FILTER_TYPE_CPUMASK, + .name = "cpumask", + }, +}; + static ssize_t type_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) { @@ -851,6 +865,29 @@ static ssize_t allow_store(struct kobject *kobj, return count; } +static ssize_t cpumask_show(struct kobject *kobj, struct kobj_attribute *attr, + char *buf) +{ + struct damon_sysfs_sample_filter *filter = container_of(kobj, + struct damon_sysfs_sample_filter, kobj); + + return sysfs_emit(buf, "%*pbl\n", cpumask_pr_args(&filter->cpumask)); +} + +static ssize_t cpumask_store(struct kobject *kobj, struct kobj_attribute *attr, + const char *buf, size_t count) +{ + struct damon_sysfs_sample_filter *filter = container_of(kobj, + struct damon_sysfs_sample_filter, kobj); + cpumask_t cpumask; + int err = cpulist_parse(buf, &cpumask); + + if (err) + return err; + filter->cpumask = cpumask; + return count; +} + static void damon_sysfs_sample_filter_release(struct kobject *kobj) { struct damon_sysfs_sample_filter *filter = container_of(kobj, @@ -868,10 +905,14 @@ static struct kobj_attribute damon_sysfs_sample_filter_matching_attr = static struct kobj_attribute damon_sysfs_sample_filter_allow_attr = __ATTR_RW_MODE(allow, 0600); +static struct kobj_attribute damon_sysfs_sample_filter_cpumask_attr = + __ATTR_RW_MODE(cpumask, 0600); + static struct attribute *damon_sysfs_sample_filter_attrs[] = { &damon_sysfs_sample_filter_type_attr.attr, &damon_sysfs_sample_filter_matching_attr.attr, &damon_sysfs_sample_filter_allow_attr.attr, + &damon_sysfs_sample_filter_cpumask_attr.attr, NULL, }; ATTRIBUTE_GROUPS(damon_sysfs_sample_filter); -- 2.47.3