[PATCH v2] mm/damon: update expired description of damos_action

[Sang-Heon Jeon <ekffu200098@gmail.com>]

Nowadays, damos operation actions support more various operation set.
But comments(also, generated documentation) doesn't updated.
So, fix the comments with current support status.

Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com>
---
Changes from v1 [1]:
1. change baseline from damon/next to mm/mm-new
2. Add note about DAMOS_PAGEOUT and demotion.

[1] https://lore.kernel.org/all/20250731132230.80046-1-ekffu200098@gmail.com/

---
I also watch your comment from [1]. Thank you for not forgetting :)

[1] https://lore.kernel.org/damon/20250801233942.1614-1-sj@kernel.org/

---
 include/linux/damon.h | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index f13664c62ddd..d4b3ffd6144d 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -110,7 +110,7 @@ struct damon_target {
  *
  * @DAMOS_WILLNEED:	Call ``madvise()`` for the region with MADV_WILLNEED.
  * @DAMOS_COLD:		Call ``madvise()`` for the region with MADV_COLD.
- * @DAMOS_PAGEOUT:	Call ``madvise()`` for the region with MADV_PAGEOUT.
+ * @DAMOS_PAGEOUT:	Reclaim the region.
  * @DAMOS_HUGEPAGE:	Call ``madvise()`` for the region with MADV_HUGEPAGE.
  * @DAMOS_NOHUGEPAGE:	Call ``madvise()`` for the region with MADV_NOHUGEPAGE.
  * @DAMOS_LRU_PRIO:	Prioritize the region on its LRU lists.
@@ -123,8 +123,10 @@ struct damon_target {
  * The support of each action is up to running &struct damon_operations.
  * &enum DAMON_OPS_VADDR and &enum DAMON_OPS_FVADDR supports all actions except
  * &enum DAMOS_LRU_PRIO and &enum DAMOS_LRU_DEPRIO.  &enum DAMON_OPS_PADDR
- * supports only &enum DAMOS_PAGEOUT, &enum DAMOS_LRU_PRIO, &enum
- * DAMOS_LRU_DEPRIO, and &DAMOS_STAT.
+ * supports all actions except &enum DAMOS_WILLNEED, &enum DAMOS_COLD,
+ * &enum DAMOS_HUGEPAGE, &enum DAMOS_NOHUGEPAGE.
+ *
+ * Note that DAMOS_PAGEOUT doesn't trigger demotions.
  */
 enum damos_action {
 	DAMOS_WILLNEED,
-- 
2.43.0