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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 749F8C433FE for ; Tue, 19 Oct 2021 15:08:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5C61E6115A for ; Tue, 19 Oct 2021 15:08:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234304AbhJSPK2 (ORCPT ); Tue, 19 Oct 2021 11:10:28 -0400 Received: from mail.kernel.org ([198.145.29.99]:58238 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233527AbhJSPKS (ORCPT ); Tue, 19 Oct 2021 11:10:18 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id F21A860F22; Tue, 19 Oct 2021 15:08:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1634656085; bh=BUbtItIfGpDhgNPVfTufa4K3O0hNi69LHwsG38Q6v04=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KaY83aVaq0NJhJnK4EynzmbtFkeMG5QwqzaJ1tx7kc3gOOZoNtKn7m9dkiMdN2mz8 mIBKo1xZwVVCCFQXsHokIjVJDG8pneLZNyS2maG+8ACLzX4Xid947GhciJKeQzw2fO E1elwY5OD7w8MHh0JXOt9XRySpyW+x0Dr9bJqjK3cbcfO5FcyIshvgE6Dj24v8kn5b jr9Oz7xDvzdjxK0dVcAP0erpoGYp5RvP8XN18TPXA0aNuJ7mnLXbYC1d1OFYiJWbZa p5JWtk/3osHWgw7b+RhAVSWMthBbrlE7u/t3MWCEXFqlk+JzcksO4pXUymqqYXYRuR UfztV5XC5rZjQ== From: SeongJae Park To: akpm@linux-foundation.org Cc: SeongJae Park , Jonathan.Cameron@Huawei.com, amit@kernel.org, benh@kernel.crashing.org, corbet@lwn.net, david@redhat.com, dwmw@amazon.com, elver@google.com, foersleo@amazon.de, gthelen@google.com, markubo@amazon.de, rientjes@google.com, shakeelb@google.com, shuah@kernel.org, linux-damon@amazon.com, linux-mm@kvack.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 09/15] mm/damon/dbgfs: Support prioritization weights Date: Tue, 19 Oct 2021 15:07:25 +0000 Message-Id: <20211019150731.16699-10-sj@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20211019150731.16699-1-sj@kernel.org> References: <20211019150731.16699-1-sj@kernel.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This commit allows DAMON debugfs interface users set the prioritization weights by putting three more numbers to the 'schemes' file. Signed-off-by: SeongJae Park --- mm/damon/dbgfs.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c index 097e6745ba75..20c4feb8b918 100644 --- a/mm/damon/dbgfs.c +++ b/mm/damon/dbgfs.c @@ -105,13 +105,16 @@ static ssize_t sprint_schemes(struct damon_ctx *c, char *buf, ssize_t len) damon_for_each_scheme(s, c) { rc = scnprintf(&buf[written], len - written, - "%lu %lu %u %u %u %u %d %lu %lu %lu %lu %lu\n", + "%lu %lu %u %u %u %u %d %lu %lu %lu %u %u %u %lu %lu\n", s->min_sz_region, s->max_sz_region, s->min_nr_accesses, s->max_nr_accesses, s->min_age_region, s->max_age_region, s->action, s->quota.ms, s->quota.sz, s->quota.reset_interval, + s->quota.weight_sz, + s->quota.weight_nr_accesses, + s->quota.weight_age, s->stat_count, s->stat_sz); if (!rc) return -ENOMEM; @@ -193,11 +196,14 @@ static struct damos **str_to_schemes(const char *str, ssize_t len, while (pos < len && *nr_schemes < max_nr_schemes) { struct damos_quota quota = {}; - ret = sscanf(&str[pos], "%lu %lu %u %u %u %u %u %lu %lu %lu%n", + ret = sscanf(&str[pos], + "%lu %lu %u %u %u %u %u %lu %lu %lu %u %u %u%n", &min_sz, &max_sz, &min_nr_a, &max_nr_a, &min_age, &max_age, &action, "a.ms, - "a.sz, "a.reset_interval, &parsed); - if (ret != 10) + "a.sz, "a.reset_interval, + "a.weight_sz, "a.weight_nr_accesses, + "a.weight_age, &parsed); + if (ret != 13) break; if (!damos_action_valid(action)) { pr_err("wrong action %d\n", action); -- 2.17.1