From dd411433129c07a3bea43a0cc5ad9587bac1736a Mon Sep 17 00:00:00 2001
From: Kefeng Wang <wangkefeng.wang@huawei.com>
Date: Wed, 8 Mar 2023 16:33:09 +0800
Subject: [PATCH] mm/damon/paddr: minor refactor of damon_pa_pageout()
Patch series "mm/damon/paddr: minor code improvement", v3.
Unify folio_put() to make code more clear, and also fix minor issue in
damon_pa_young().
This patch (of 3):
Omit three lines by unified folio_put(), and make code more clear.
Link: https://lkml.kernel.org/r/20230308083311.120951-1-wangkefeng.wang@huawei.com
Link: https://lkml.kernel.org/r/20230308083311.120951-2-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/damon/paddr.c | 13 +++++--------
1 file changed, 5 insertions(+), 8 deletions(-)
diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c
index dd9c33fbe8052..0db724aec5cb9 100644
--- a/mm/damon/paddr.c
+++ b/mm/damon/paddr.c
@@ -238,21 +238,18 @@ static unsigned long damon_pa_pageout(struct damon_region *r, struct damos *s)
if (!folio)
continue;
- if (damos_pa_filter_out(s, folio)) {
- folio_put(folio);
- continue;
- }
+ if (damos_pa_filter_out(s, folio))
+ goto put_folio;
folio_clear_referenced(folio);
folio_test_clear_young(folio);
- if (!folio_isolate_lru(folio)) {
- folio_put(folio);
- continue;
- }
+ if (!folio_isolate_lru(folio))
+ goto put_folio;
if (folio_test_unevictable(folio))
folio_putback_lru(folio);
else
list_add(&folio->lru, &folio_list);
+put_folio:
folio_put(folio);
}
applied = reclaim_pages(&folio_list);
--
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