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b=eUzhXTUFbXoKr2sBu5psoSFRm1KZwtj4mV4RSQtAChYoF7VdQMKGUNcu4BnPo5X96 5GAfliIjUAmjKGNJU4TOuZEvLY/XPmoY0hvy6LDVeKwuXTlczoZByg9gQZdGQDy3XA emo6ethhQEeBB3ZHZGH/sny8QEPKDQbz3DQiXAdUqOM2GrBSSyOaqLOKgFLiIHlYm3 mdSQgbZ3caheWyLIQ6W1OjNYkwpoqSEjLBWIvlwXYyRTgn9GHo4npaCHsAAIbm9lbG X+8qRQg+D9PF/MNWvikOyRrS3Ltcel3a6AsPs0SEsgbnsSZ6Hr1Cek+TqxrCBhzhUE wcVqHmKTIAj0A== 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 v8 01/16] mm/mglru: report evictable sizes per type Date: Sat, 14 Nov 2026 02:55:26 +0800 Message-Id: <20261113185541.70203-2-baohua@kernel.org> X-Mailer: git-send-email 2.39.3 (Apple Git-146) In-Reply-To: <20261113185541.70203-1-baohua@kernel.org> References: <20261113185541.70203-1-baohua@kernel.org> X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: jfhwrqmpeaihydwb3w86od6n3o1w1tms X-Rspamd-Server: rspam01 X-Rspam-User: 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-Queue-Id: A111B20006 X-HE-Tag: 1794596154-307838 X-HE-Meta: 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 B2lBq1Vc xbNzhvfpLQWf0pXw17+dkDOWFHbafOZEY1yFNoCg/cBtZR0UugJtf1TXAb1AqWPqzvcAZAqbrI1zMxvjCy1s2Xzebio2QR4+KJvRpf9KHdD6h5t547ZEGx7OrzvUYY9O3YVFwx+0bsQ1bYCU4isrBYKzanPxVoxZ2emj95mj69o+j2MN8gEwGeLTeojlDf8xI0UdyDgWPPOAiUFMfyW6lPd+Fvk6lGDvlUdm2il+H0nFbRaoWISjUnQPB78WEJy/C9IxiqUG3kVT8DMIJo43LkOh25vV7upG62OcTuCk65JaxHZpuayyB7QX/HiXQILn9J33f0guaPfpkUUTn8+QowG0rWzJS6U3/VyoqFr25HzfyUYVp9Vezy4eNYg== 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)