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 B33B4397329; Fri, 19 Jun 2026 19:34:34 +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=1781897678; cv=none; b=MeCZWUc2bf1Rs4kQT/LbPxVnHGNuVJ5D26aesXfQBphdBrK84PI3dhaBDNLoXMqtt3f3lpf6wuA0p/CIkZM1ep2KiGd7KaiSNiBqL13duEtJMY/Q7Obv7dX3XLaFdrzxPo1g/j/kyQMlIqxoqOKKxzFDdhsaoxyB8U83ikmQUhw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781897678; c=relaxed/simple; bh=aIGhUJ4IoRlUb8jMftp99Tj2NImb49Pmhd/fzeAvk+w=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=sTE/T2yvQVMGrQbeQ4tWKZvwWfAqg/xS8nlyATzUJ3maV1SupRWHpsNNRfnp/nPLlT03lZltMGvw4ZDgdbmbNyI3C7FCqckgWdO7sZKq/xEsMcBKIz70CHEgXrPqbadMblbxdXVu4iMJgOL4ObifkiDqZslw6jkBooJo4W/PhCM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=QgQozR+E; 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="QgQozR+E" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1E60A1F00A3A; Fri, 19 Jun 2026 19:34:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1781897674; bh=HUk5Cck1sJbUUjMgjgxqdG3j5G1J/Fn/sddbtTw+llU=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=QgQozR+Evjxx196nYAkpmjcXIrwW+sdgpUxyCTAjW8wWiUIxD6/xkdbLciJckZvuq VSgpPpKcMQibZqrAxL4gxG+23aw4+gas8EyJHsGfLK0G8588li0ummvEHKzgbe2bRd ZAqk0iTZch+Ab+Mv7P+FbcOKb+M1V7XHie6vxs5xngV1cLH3xekB211UI02FFoC089 PNno4ZJqLjMQX4bU7LPIMmPthlrh4BNDS3zIJ8GCLf1J9OBqxjtzf/bR76SfkPNm44 bEwLr9oMdClEc5DWiyaxoq8y4GrbjO/sG43p61qLt9zzKEKJxO95sUercut2mEzzOG NwC2TmaZxkgmg== 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 05/13] mm/damon/sysfs-schemes: use damon_nr_accesses_mvsum() for damo regions Date: Fri, 19 Jun 2026 12:33:50 -0700 Message-ID: <20260619193415.73833-6-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260619193415.73833-1-sj@kernel.org> References: <20260619193415.73833-1-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_nr_accesses_mvsum() returns a value same to nr_accesses_bp. Also the function is more simple and therefore more tolerant to errors. Execution of the function would be more expensive than the simple read of the field, but because the function is quite simple, the overhead should be negligible. Use it in the DAMON sysfs interface for scheme-tried regions, instead of the nr_accesses_bp. Signed-off-by: SeongJae Park --- mm/damon/sysfs-schemes.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/mm/damon/sysfs-schemes.c b/mm/damon/sysfs-schemes.c index 9d8fab32b80f7..30a007bcf82f4 100644 --- a/mm/damon/sysfs-schemes.c +++ b/mm/damon/sysfs-schemes.c @@ -159,7 +159,7 @@ struct damon_sysfs_scheme_region { }; static struct damon_sysfs_scheme_region *damon_sysfs_scheme_region_alloc( - struct damon_region *region) + struct damon_region *region, struct damon_ctx *ctx) { struct damon_sysfs_scheme_region *sysfs_region = kmalloc_obj(*sysfs_region); @@ -167,7 +167,7 @@ static struct damon_sysfs_scheme_region *damon_sysfs_scheme_region_alloc( return NULL; sysfs_region->kobj = (struct kobject){}; sysfs_region->ar = region->ar; - sysfs_region->nr_accesses = region->nr_accesses_bp / 10000; + sysfs_region->nr_accesses = damon_nr_accesses_mvsum(region, ctx); sysfs_region->age = region->age; sysfs_region->probes = NULL; INIT_LIST_HEAD(&sysfs_region->list); @@ -3124,7 +3124,7 @@ void damos_sysfs_populate_region_dir(struct damon_sysfs_schemes *sysfs_schemes, if (total_bytes_only) return; - region = damon_sysfs_scheme_region_alloc(r); + region = damon_sysfs_scheme_region_alloc(r, ctx); if (!region) return; region->sz_filter_passed = sz_filter_passed; -- 2.47.3