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mm/damon: document region size validation in damon_set_regions()

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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 <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SJ Park
2026-07-05 08:55:57 -07:00
committed by Andrew Morton
parent cf4b20f9f9
commit f2be66be3a
1 changed files with 2 additions and 1 deletions
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3
include/linux/damon.h
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@@ -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