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b=KsojjOUR5FpzuhoMEsiQ74lUTtF3Sd4uHmbZgbxvj+CN35fepwndOghBiOVFw7xO0 Ina4iKV98T2sy2Dl9/ct+GGklfuSC0R28ypUeAVNfyTyvZXbJX9viVYPcDujdLlhlJ fMdeernsOZ2muTPkX9fjxA9IUvBjVb3JUrIDuSA0cy53BnFEXy0WeJFIjVxbqslFze Z5U15cbyGca6bSsK6eJ2xDhpWeWufKtDJcpPofPlrKa1YynmqgbFJvd7fuZ6+a5u77 iaFVyUu91FxnYcnsAH7crC5O+qgR4dRcbzf8l37Wkx+Vvga8b1iTzg8a9f3yWdd+8U k0G98Y2QL1+NA== 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 v2 23/28] mm/damon/paddr: support DAMON_FILTER_TYPE_MEMCG Date: Tue, 12 May 2026 07:36:38 -0700 Message-ID: <20260512143645.113201-24-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260512143645.113201-1-sj@kernel.org> References: <20260512143645.113201-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 21DB34000F X-Stat-Signature: xdbh3jqwrdjd53m1waynpxp5b45ribat X-Rspam-User: X-HE-Tag: 1778596626-551462 X-HE-Meta: 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 hchMuIGH hJLMcdwAZTW0QqYc28y7OUAU0CIdfluE/WqoaTiKMhDTcHMLcq1DC/O6dpIAJ6sNZ5AUqGSc5pcBK+vsf06idLwlXuPjh0vzDIyvLngzZg80Ce/eBwspl70GJ6Fh7aQyUYT9t0LfYHyEldIaS/HkRYqukE7umy5fSAwN2wjkVdXUExKfAScvy/9KF5zX95ZnWh2M2ZRUOl8xy6HXYYWapsOjQZfvTE5KhPagqTx3qc/YhRjNrr6k7MbBTDJdxEUjbi/C4ITc79y9st5MgqIh1nHN+7w== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Implement the support of DAMON_FILTER_TYPE_MEMCG on the DAMON operation set implementation for the physical address space. Signed-off-by: SeongJae Park --- mm/damon/paddr.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c index e60af2cbc1089..f093485fd16a6 100644 --- a/mm/damon/paddr.c +++ b/mm/damon/paddr.c @@ -124,6 +124,7 @@ static bool damon_pa_filter_match(struct damon_filter *filter, struct folio *folio) { bool matched = false; + struct mem_cgroup *memcg; switch (filter->type) { case DAMON_FILTER_TYPE_ANON: @@ -133,6 +134,19 @@ static bool damon_pa_filter_match(struct damon_filter *filter, } matched = folio_test_anon(folio); break; + case DAMON_FILTER_TYPE_MEMCG: + if (!folio) { + matched = false; + break; + } + rcu_read_lock(); + memcg = folio_memcg_check(folio); + if (!memcg) + matched = false; + else + matched = filter->memcg_id == mem_cgroup_id(memcg); + rcu_read_unlock(); + break; default: break; } -- 2.47.3