[PATCH] mm/damon/core: fix damos_commit_filter not changing allow

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

Current damos_commit_filter() not persist allow value of filter. As a
result, changing allow value of filter and commit doesn't change
allow value.

Add the missing allow value update, so commit filter now persist changing
allow value well.

Fixes: 9cb3d0b9dfce ("mm/damon/core: implement DAMON context commit function")
Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com>
---
While fixing kselftest, I found another bug and succeeded in
reproducing. I think this patch is similar with previeous patch [1].
Also instead of sending patch with test, should we check which is better:
a seperate patch or patchset?

[1] https://lore.kernel.org/damon/20250808220815.49644-1-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 19c8f01fc81a..cb41fddca78c 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -900,6 +900,7 @@ static void damos_commit_filter(
 {
 	dst->type = src->type;
 	dst->matching = src->matching;
+	dst->allow = src->allow;
 	damos_commit_filter_arg(dst, src);
 }
 
-- 
2.43.0