From: Miaohe Lin <linmiaohe@huawei.com>
To: <akpm@linux-foundation.org>
Cc: <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>,
<linmiaohe@huawei.com>
Subject: [PATCH 1/8] mm/vmscan: remove redundant folio_test_swapbacked check when folio is file lru
Date: Tue, 29 Mar 2022 21:26:12 +0800 [thread overview]
Message-ID: <20220329132619.18689-2-linmiaohe@huawei.com> (raw)
In-Reply-To: <20220329132619.18689-1-linmiaohe@huawei.com>
When folio is file lru, folio_test_swapbacked is guaranteed to be true. So
it's unnecessary to check it here again. No functional change intended.
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
---
mm/vmscan.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 1678802e03e7..7c1a9713bfc9 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1434,8 +1434,7 @@ static void folio_check_dirty_writeback(struct folio *folio,
* Anonymous pages are not handled by flushers and must be written
* from reclaim context. Do not stall reclaim based on them
*/
- if (!folio_is_file_lru(folio) ||
- (folio_test_anon(folio) && !folio_test_swapbacked(folio))) {
+ if (!folio_is_file_lru(folio) || folio_test_anon(folio)) {
*dirty = false;
*writeback = false;
return;
--
2.23.0
next prev parent reply other threads:[~2022-03-29 13:26 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-29 13:26 [PATCH 0/8] A few cleanup and fixup patches for migration Miaohe Lin
2022-03-29 13:26 ` Miaohe Lin [this message]
2022-03-29 13:46 ` [PATCH 1/8] mm/vmscan: remove redundant folio_test_swapbacked check when folio is file lru Matthew Wilcox
2022-03-30 1:46 ` Miaohe Lin
2022-03-30 8:13 ` Muchun Song
2022-03-30 9:26 ` Miaohe Lin
2022-03-31 6:37 ` Huang, Ying
2022-03-31 7:44 ` Miaohe Lin
2022-03-31 8:02 ` Huang, Ying
2022-03-31 8:07 ` Miaohe Lin
2022-03-29 13:26 ` [PATCH 2/8] mm/vmscan: remove unneeded can_split_huge_page check Miaohe Lin
2022-03-31 8:38 ` Huang, Ying
2022-03-31 10:47 ` Miaohe Lin
2022-03-29 13:26 ` [PATCH 3/8] mm/vmscan: introduce helper function reclaim_page_list() Miaohe Lin
2022-03-29 13:50 ` Matthew Wilcox
2022-03-30 2:04 ` Miaohe Lin
2022-03-30 16:23 ` Matthew Wilcox
2022-03-31 1:45 ` Miaohe Lin
2022-03-29 14:00 ` Christoph Hellwig
2022-03-30 2:02 ` Miaohe Lin
2022-03-29 13:26 ` [PATCH 4/8] mm/vmscan: save a bit of stack space in shrink_lruvec Miaohe Lin
2022-03-29 14:00 ` Christoph Hellwig
2022-03-30 1:59 ` Miaohe Lin
2022-03-29 13:26 ` [PATCH 5/8] mm/vmscan: use helper folio_is_file_lru() Miaohe Lin
2022-04-01 3:20 ` Huang, Ying
2022-04-01 6:14 ` Miaohe Lin
2022-04-01 6:40 ` Huang, Ying
2022-03-29 13:26 ` [PATCH 6/8] mm/vmscan: take all base pages of THP into account when race with speculative reference Miaohe Lin
2022-03-29 13:26 ` [PATCH 7/8] mm/vmscan: take min_slab_pages into account when try to call shrink_node Miaohe Lin
2022-03-29 13:26 ` [PATCH 8/8] mm/vmscan: remove obsolete comment in kswapd_run Miaohe Lin
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