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b=HxtoOFve2T3VgwogTRiEZv3A4RdpF8863bbifdj51BC0LUnJhxcFyu6b8FUp9ehPS 13gdPW3bKoK3uPH0rqHF+OQlbpJ/tcMsXu+wBGzBwTmJsbfBnmGcOoUUTbIO2A1Qs2 +URqoL7N/Zsunypjrq6QxBhB1s5sNXfSNEPGT5Ke+b7EfddtEzs4C0+HJEL4n6uKGt CEXXwPiR/LOiZHKLhVOyeXfTjzeJ+HIVEYsP4qR+hkMsb9Awa8HdPaOdXo1W4sTvkv Gh8dH3is7b2QzKsg2AFRpYnCsmdke976eJ6ZVlTBGmUaRjEq2rWO+4BXZ3t7RnLlzz fuxsKWJ/JdRPA== From: "Barry Song (Xiaomi)" To: akpm@linux-foundation.org, linux-mm@kvack.org Cc: axelrasmussen@google.com, baolin.wang@linux.alibaba.com, baoquan.he@linux.dev, hannes@cmpxchg.org, hui.zhu@linux.dev, kasong@tencent.com, kunwu.chan@gmail.com, liam@infradead.org, lianux.mm@gmail.com, linux-kernel@vger.kernel.org, liuxiang.277@bytedance.com, lyugaofei@xiaomi.com, mhocko@kernel.org, mhocko@suse.com, qi.zheng@linux.dev, ridong.chen@linux.dev, rppt@kernel.org, ryncsn@gmail.com, shakeel.butt@linux.dev, surenb@google.com, wangzicheng@honor.com, weixugc@google.com, yuanchu@google.com, zhangbo56@xiaomi.com, zhuhui@kylinos.cn, sidchintamaneni@gmail.com, Barry Song Subject: [PATCH v9 01/16] mm/mglru: report evictable sizes per type Date: Sun, 15 Nov 2026 04:07:48 +0800 Message-Id: <20261114200803.23129-2-baohua@kernel.org> X-Mailer: git-send-email 2.39.3 (Apple Git-146) In-Reply-To: <20261114200803.23129-1-baohua@kernel.org> References: <20261114200803.23129-1-baohua@kernel.org> X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_PASS, SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=4.0.1 X-Rspamd-Server: rspam09 X-Stat-Signature: pftjnddxrbdkawerf6316zjqbz33krab X-Rspamd-Queue-Id: 2C83A1C0004 X-Rspam-User: X-HE-Tag: 1794686899-510214 X-HE-Meta: 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 fnIjmUmY 4JHIKi+1attivwUH7OiNEoVZyezhaSDPSJTgpv2nHq0ohD7z3bO0dyhjhgi1m/fwPhyaLoUSJxIvdwfnJCTYdE6cdpgT8fp2vtTyQJr6WCwPJX7uh9VaHRC8/yT+gVNB0FQvu7pRuZ2qaTlKQy+PnrceStziUMhZA5gJkqnuY7GECEOYCSqOmUnprKIjEHsc+g01cF8uT8xRF8Uo8fWp/LP7rg6rUl8jqZ7LjqJwNLF14WTkIUVJjc0kgqxD/jcxXmDaC8P7SLMVz4JFxcoeLmnj9uZkzDSDUT5TZPKL6CEXckRDdbKXO6D2ASC2hOTvq4xr1NNj8NwhVXuNdHbYTlMMow007epxPN1DOMwVJvhjwWsMh0iD0kqKz48PNo5Dc3qiO Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 From: Kairui Song Change lruvec_evictable_size() to return the number of evictable anonymous and file pages separately instead of a single total, so that callers can weigh the two types independently. Update lruvec_is_sizable() and get_nr_to_scan() accordingly; the summed totals are unchanged, so there is no functional change. Signed-off-by: Kairui Song Signed-off-by: Barry Song (Xiaomi) Reviewed-by: Kunwu Chan Reviewed-by: Baolin Wang --- mm/vmscan.c | 22 +++++++++++++--------- 1 file changed, 13 insertions(+), 9 deletions(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index 46be9c7e967c..400f87fc51e1 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -4193,28 +4193,31 @@ static void set_initial_priority(struct pglist_data *pgdat, struct scan_control sc->priority = clamp(priority, DEF_PRIORITY / 2, DEF_PRIORITY); } -static unsigned long lruvec_evictable_size(struct lruvec *lruvec, int swappiness) +static void lruvec_evictable_size(struct lruvec *lruvec, int swappiness, + unsigned long nr[]) { int type; - unsigned long seq, total = 0; + unsigned long seq; struct lru_gen_folio *lrugen = &lruvec->lrugen; DEFINE_MAX_SEQ(lruvec); DEFINE_MIN_SEQ(lruvec); + nr[LRU_GEN_ANON] = 0; + nr[LRU_GEN_FILE] = 0; + for_each_evictable_type(type, swappiness) { for (seq = min_seq[type]; seq <= max_seq; seq++) - total += lruvec_gen_size(lrugen, type, seq); + nr[type] += lruvec_gen_size(lrugen, type, seq); } - - return total; } static bool lruvec_is_sizable(struct lruvec *lruvec, struct scan_control *sc) { - unsigned long total; + unsigned long total, sizes[ANON_AND_FILE]; int swappiness = get_swappiness(lruvec, sc); - total = lruvec_evictable_size(lruvec, swappiness); + lruvec_evictable_size(lruvec, swappiness, sizes); + total = sizes[LRU_GEN_ANON] + sizes[LRU_GEN_FILE]; /* whether the size is big enough to be helpful */ return total >> sc->priority; @@ -5028,7 +5031,7 @@ static bool should_run_aging(struct lruvec *lruvec, unsigned long max_seq, static long get_nr_to_scan(struct lruvec *lruvec, struct scan_control *sc, struct mem_cgroup *memcg, int swappiness) { - unsigned long nr_to_scan, evictable; + unsigned long nr_to_scan, evictable, sizes[ANON_AND_FILE]; struct pglist_data *pgdat = lruvec_pgdat(lruvec); /* @@ -5044,7 +5047,8 @@ static long get_nr_to_scan(struct lruvec *lruvec, struct scan_control *sc, return 0; } - evictable = lruvec_evictable_size(lruvec, swappiness); + lruvec_evictable_size(lruvec, swappiness, sizes); + evictable = sizes[LRU_GEN_ANON] + sizes[LRU_GEN_FILE]; nr_to_scan = apply_proportional_protection(memcg, sc, evictable); nr_to_scan >>= sc->priority; -- 2.39.3 (Apple Git-146)