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b=P13YjycLN4F4N+zD38vWSxkt6HKL82woeFH/3wQ0qxOXtm7u3KffXFHkfHkmDPJZS tfYSVHjrhhJqJ8C9aG5U1no+kDK09JEao8rZzOGUHE0ytYlmMIHTORE14d7+GISbrA cVnCLkQ4XmoDZ93o6axAh7bDumtY3VptUIyaPbzqhl42raKoOQpkm0xP6HplEWn3Uz hwRN7qCqOMNLtoel7IGi0JUsHfS0eL8ifsfnzV1R1o6U5VGJg5mxLM/kbP2eNabEcR sIRLxehDzZQ/x962ZTEwOQKCosmyJC5gKH22risR7sCIXHDYgY0vr4IFGiBzSrH8dQ KK7FOND2vOxrA== 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 v6 01/15] mm/mglru: report evictable sizes per type Date: Wed, 11 Nov 2026 04:20:11 +0800 Message-Id: <20261110202025.25736-2-baohua@kernel.org> X-Mailer: git-send-email 2.39.3 (Apple Git-146) In-Reply-To: <20261110202025.25736-1-baohua@kernel.org> References: <20261110202025.25736-1-baohua@kernel.org> X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 7B6F51C000B X-Stat-Signature: ibugutuf9pdcuc4gqsd7eqjto4t7ttob 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-HE-Tag: 1794342041-612282 X-HE-Meta: U2FsdGVkX191HNuKPfPfTN3V0YjQuFw3yuK2InhIib2j2kSSdsjyFdXYb4X2gwb+3mdijqsi83M7MzZYTfaJ111z5OWaVLnhWNL1cB/T2Kv8djBlNrfL+Gl1WBJIuJlxxZ2lUgzxQe21Rh/WgEnuSHyiXNhk4rSIZmf8SNiOcbF+Qp98SrzsqI3x3P5lTBSiN+Y4dcRMtREKtdfdzvRPxl2+KSRr42xdbdzgr0e8m/ZL9PEZoaNCDzYkEJMY8NMdFdgGza+/A4RJJdnVx/GDzFlvlZQqjdwly1w0xiahji44hsUxsUucVbKLnEslVJ/phoDM5IN8agyUK7C1EsG+y4xtB04J1D2nIKhwzS5ew/B81LKOQl73dF7pxjHunikHlhXdBKhE5fMk78cAXWZeZGmxA7a/906qGt7wrLY8uGGP0inXXtrlNYc0JUaOaRSPRwefFwjIKiiI+akFOVQE45bjhYCsfu6NLaTS294ERWCONPIWo3N9CulYlwrvg0ys/dC00ZZ/v317/wUi56lX9Tb7axz55sD9KAvKg+MPFgRU+FFg1O4n6V2o6DihcP5ATz+pgIdzrE3LjESibDeppPBC0OuAfHUD3sUOM0dbiRgXEVWB2cM2w9XpuEAg9PaTdUIwQQ2KgMMbgXJ1C6MdQqwc2N0FgJ1qHk9ZOUw2Tu9UZ30pT0/stgmjkU8sHSBWqGtRGZsBkrAIBT2cncJwtCDAKzjdrbd+vX0QSzrmwZJ/xRjZ/OutPj+MOzV72v9Q2J0Oq7mTMppq/5GSqZFz6+C3xCcDs+sLm1lGGSJ4rgysLXDcGILDhHoyTN4Q0flA50rl4pjfpcUap0ZuQDqH+Fplc5GnOlo1qW4CPAfsAs2rQ2I+7Ew2YyxUEjMGIJcgyaDyr6AVfgeIvkMARzdM453JePJozeWENILj7h4vpVn1KcEWtSyE6AY8Y/NUzppERyTfJgx4J6fb7s7ZbX5 SeCDYie5 MHP097w13eZtFe7mnBeMb6Ofk49V2CALPXi1dtfkde96rt3iffYKuhfRZlFbMq/lrryymEQyqphlIlBQNUhz89X4Kt2/FrFwsYOkMNejy6Z6Z7rMpmdS9ENYvhIPdrVEzDwEpKRmLsMWFF6H84NIkjDNGvEqM671dM3Kgf2Dh9JkX5jHT1MPih5tb4La6bEoeHyZeYdgzrHJbL/WDQXomzALh9Agk6cf9XFBms9nowF8244EMWM38P7MLyFgLh1VoH7De8fc8thmqkU3PMmVZ9YAM723dQjEh5ONdxzKWtSLfUiilg+hjeGdvkU9W1mJnpLUhHxQK61Lo5utW1e6EFqf5QpDLfCaTozAV 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 --- mm/vmscan.c | 22 +++++++++++++--------- 1 file changed, 13 insertions(+), 9 deletions(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index 061fbd168d98..acc4efccda2f 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -4192,28 +4192,31 @@ 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; @@ -5021,7 +5024,7 @@ 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); /* @@ -5037,7 +5040,8 @@ 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; -- 2.34.1