+ mm-damon-paddr-minor-refactor-of-damon_pa_pageout.patch added to mm-unstable branch

+ mm-damon-paddr-minor-refactor-of-damon_pa_pageout.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: mm/damon/paddr: minor refactor of damon_pa_pageout()
has been added to the -mm mm-unstable branch.  Its filename is
     mm-damon-paddr-minor-refactor-of-damon_pa_pageout.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-paddr-minor-refactor-of-damon_pa_pageout.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Kefeng Wang <wangkefeng.wang@huawei.com>
Subject: mm/damon/paddr: minor refactor of damon_pa_pageout()
Date: Wed, 8 Mar 2023 16:33:09 +0800

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>
---


--- a/mm/damon/paddr.c~mm-damon-paddr-minor-refactor-of-damon_pa_pageout
+++ a/mm/damon/paddr.c
@@ -238,21 +238,18 @@ static unsigned long damon_pa_pageout(st
 		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);
_

Patches currently in -mm which might be from wangkefeng.wang@huawei.com are

mm-huge_memory-convert-__do_huge_pmd_anonymous_page-to-use-a-folio.patch
mm-memory-use-folio_throttle_swaprate-in-do_swap_page.patch
mm-memory-use-folio_throttle_swaprate-in-page_copy_prealloc.patch
mm-memory-use-folio_throttle_swaprate-in-wp_page_copy.patch
mm-memory-use-folio_throttle_swaprate-in-do_anonymous_page.patch
mm-memory-use-folio_throttle_swaprate-in-do_cow_fault.patch
mm-swap-remove-unneeded-cgroup_throttle_swaprate.patch
mm-damon-paddr-minor-refactor-of-damon_pa_pageout.patch
mm-damon-paddr-minor-refactor-of-damon_pa_mark_accessed_or_deactivate.patch
mm-damon-paddr-fix-missing-folio_sz-update-in-damon_pa_young.patch