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b=pkfPHVX7GX8aIMQ/kJ/GD5EiTwpxljO4R8nUKMySnXQ9Vb+lulnQBcBIW/nNx2C4m ClZoKjHJxKswAPf0joekMlk+8v0v/EcSa3o3mQKfLv3Ar52wfMDr8BD+yelnCCNxIE JK2PiqCCw47a0Gilz4unDa3f46dCO/7Od9kBIR3pK9I0AtPfwjlBKou8sro1cq+v4c WMwCJLs4ae4KK6G7lrM68CS8PIi17wGbjrlNK4m42Eep1f/ShmlBqddY3ucSqHquHX tgrLIMXbARD07N0DVWPGPDM7zK2GsKQjvV54K/Kp/onV0anElv6sHl8GwY0UFczpvU c+se8nMtaPYtw== From: SeongJae Park To: Andrew Morton Cc: SeongJae Park , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 23/28] mm/damon/paddr: support DAMON_FILTER_TYPE_MEMCG Date: Mon, 18 May 2026 16:41:11 -0700 Message-ID: <20260518234119.97569-24-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260518234119.97569-1-sj@kernel.org> References: <20260518234119.97569-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 37B6440005 X-Stat-Signature: zmf1czybnwybi9wgo5jak554ucyqke76 X-Rspam-User: X-HE-Tag: 1779147693-926298 X-HE-Meta: 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 kIPZpp/5 rKC+ItBMwq3yUXbbU8Z1YeioMtlNbvmgj/RPrGyve2uEp5ZJCqY/gPcjCKZETg6n7x6TOsRPCjl7SN7k50JuKnhk5+K5ZMlExQHk6hwv0Z1cf1jJt8vwBw3oWFcOkYqJjvTkWq0m43tfAUQPGXN3rk3P2a0adZe+4GVaHi59dSotAuJ47t7lUKbEipp68GnOPNmvclDRCN91heu5tLcx1fZJtpdASnieVVxzxRQbaL98/TprfUEqLl97sc6SpS0nSZy1g39IexmSm0CHTIEk2CcCAvQ== 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 9997c5174ef1b..d0598f5f26882 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