[RFC PATCH v3 14/37] mm/damon/core: report access origin cpu of page faults

SeongJae Park
2025-12-08T06:30:11Z

The CPU that executes the page fault event reporting function is the CPU
that made the access. Report the origin CPU of the access.

Signed-off-by: SeongJae Park <sj@kernel.org>
---
mm/damon/core.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/mm/damon/core.c b/mm/damon/core.c
index a14754a47c7f..d2f842d8afd2 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -1585,6 +1585,7 @@ void damon_report_page_fault(struct vm_fault *vmf, bool huge_pmd)
{
struct damon_access_report access_report = {
.size = 1, /* todo: set appripriately */
+ .cpu = smp_processor_id(),
};

if (huge_pmd)
--
2.47.3