From f2be66be3ac8bdd3beafe68cb8935d47d42b5d64 Mon Sep 17 00:00:00 2001 From: SJ Park Date: Sun, 5 Jul 2026 08:55:57 -0700 Subject: mm/damon: document region size validation in damon_set_regions() The kernel doc comment of damon_region clearly specifies every region should have positive size. But it is unclear who should verify it. damon_set_regions() is the recommended DAMON core function for setting regions from the callers, and has the verification. Update the comment to clarify the callers should be ok to pass any values for region addresses, as long as they use damon_set_regions(). Link: https://lore.kernel.org/20260705155600.96555-7-sj@kernel.org Signed-off-by: SJ Park Signed-off-by: Andrew Morton --- include/linux/damon.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/damon.h b/include/linux/damon.h index 616bdf0954b5..2661231c0ae8 100644 --- a/include/linux/damon.h +++ b/include/linux/damon.h @@ -49,7 +49,8 @@ struct damon_size_range { * @list: List head for siblings. * @age: Age of this region. * - * For any use case, @ar should be non-zero positive size. + * For any use case, @ar should be non-zero positive size. damon_set_regions() + * does the validation. * * @nr_accesses is reset to zero for every &damon_attrs->aggr_interval and be * increased for every &damon_attrs->sample_interval if an access to the region -- cgit v1.2.3