Messages in this thread Patch in this message | | | From | Hyeongtak Ji <> | Subject | [PATCH] mm/damon: Prevent unnecessary age reset for regions | Date | Mon, 7 Aug 2023 18:44:35 +0900 |
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DAMON resets the age of each region after applying each scheme, regardless of whether the scheme has been successfully applied.
This patch adds a simple condition to prevent the age of regions from being reset when schemes have not been actually applied.
Signed-off-by: Hyeongtak Ji <hyeongtak.ji@sk.com> --- mm/damon/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/damon/core.c b/mm/damon/core.c index 91cff7f2997e..4044fcf18ac1 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -908,7 +908,7 @@ static void damos_apply_scheme(struct damon_ctx *c, struct damon_target *t, quota->charge_addr_from = r->ar.end + 1; } } - if (s->action != DAMOS_STAT) + if (s->action != DAMOS_STAT && sz_applied > 0) r->age = 0; update_stat: -- 2.7.4
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