[RFC PATCH v3 26/37] mm/damon: extend damon_access_report for access-origin thread info

SeongJae Park
2025-12-08T06:30:29Z

The access reporter might be able to know which thread has made the
reporting access. Extend the report data structure for the information.

Signed-off-by: SeongJae Park <sj@kernel.org>
---
include/linux/damon.h | 2 ++
1 file changed, 2 insertions(+)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index aff34dce7c7c..80332bb2b73c 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -116,6 +116,7 @@ struct damon_target {
* @addr: The start address of the accessed address range.
* @size: The size of the accessed address range.
* @cpu: The id of the CPU that made the access.
+ * @tid: The task id of the task that made the access.
*
* Any DAMON API callers that notified access events can report the information
* to DAMON using damon_report_access(). This struct contains the reporting
@@ -125,6 +126,7 @@ struct damon_access_report {
unsigned long addr;
unsigned long size;
unsigned int cpu;
+ pid_t tid;
/* private: */
unsigned long report_jiffies; /* when this report is made */
};
--
2.47.3