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b=Qi0oWhV/hz3fVqVfc9dcYPFprssBLlVKN9rpYjeUANPC2uPTW25eSDIP712BxzE14 bD9+/aog6rGqovT/4eylDDDpeNJOn+fXT5udYwY+LTh+h7f42E6Rh+8X4TCMwAx9RO FY8ehGGRmRIPOXjx6M9/FZkZNPrfsScFYcJ550Rgblgi1APDA8ZL3SMLgKOT3vwDYd qyiiSMt3eFu4iwLI5gxdmTfkPS1cfboGcg75aP2J9p+DX0rylcuvV11X7+hf+l0g+w h5gohnM1hgfVVFw39wr1VSXmbOLW3Ydz6+HsOlnisy2tw3QPQxO7zTcGU3eKYByQpK 3YckedT71iVlA== 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 v3 23/28] mm/damon/paddr: support DAMON_FILTER_TYPE_MEMCG Date: Sat, 16 May 2026 11:37:04 -0700 Message-ID: <20260516183712.81393-24-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260516183712.81393-1-sj@kernel.org> References: <20260516183712.81393-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Queue-Id: 51E7640007 X-Rspamd-Server: rspam06 X-Stat-Signature: qnnix536i7hmhuxqsnnfags6sf9wrz9f X-HE-Tag: 1778956654-396677 X-HE-Meta: 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 5m6tMOig ltV7rp1++g4FKrDm2CZ81Wpvw/Tb+TBM0mAX0ic30N6FV5bgulJOltMfpi3she0C0uolGqm8E4ggGfu99Hvc/FCWYJOutOM4JEpqjTzF7tmEcv83VchW0CVkOLfF8ZYM52smcl1jx73K0DA/vXiFk6xcPwv8CEcCkfQrDs752Tu99fAl5ac1PvKu/LqJVCEDK4aylL+oYappJenUyjzqII5vwBIOaGSeHnpNf0tQbSJfa+e6arx+rEdnkvdZMcchZDe3srsW1RzV6CskrcBoPED0s/g== 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 81780b05c175e..ad5a65f2398f0 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