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mm/damon/paddr: support DAMON_FILTER_TYPE_MEMCG

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Implement the support of DAMON_FILTER_TYPE_MEMCG on the DAMON operation
set implementation for the physical address space.

Link: https://lore.kernel.org/20260518234119.97569-24-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park
2026-05-18 16:41:11 -07:00
committed by Andrew Morton
parent d9f23f2f82
commit ba3be5430f
1 changed files with 14 additions and 0 deletions
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14
mm/damon/paddr.c
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@@ -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;
}