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From: Miaohe Lin <linmiaohe@huawei.com>
To: <akpm@linux-foundation.org>
Cc: <ying.huang@intel.com>, <songmuchun@bytedance.com>,
	<hch@infradead.org>, <willy@infradead.org>, <linux-mm@kvack.org>,
	<linux-kernel@vger.kernel.org>, <linmiaohe@huawei.com>
Subject: [PATCH v2 5/9] mm/vmscan: activate swap-backed executable folios after first usage
Date: Sat, 9 Apr 2022 17:34:56 +0800	[thread overview]
Message-ID: <20220409093500.10329-6-linmiaohe@huawei.com> (raw)
In-Reply-To: <20220409093500.10329-1-linmiaohe@huawei.com>

We should activate swap-backed executable folios (e.g. tmpfs) after first
usage so that executable code gets yet better chance to stay in memory.

Suggested-by: Huang, Ying <ying.huang@intel.com>
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
---
 mm/vmscan.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 0e5818970998..cc1193e320c2 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1412,9 +1412,9 @@ static enum page_references folio_check_references(struct folio *folio,
 			return PAGEREF_ACTIVATE;
 
 		/*
-		 * Activate file-backed executable folios after first usage.
+		 * Activate executable folios after first usage.
 		 */
-		if ((vm_flags & VM_EXEC) && !folio_test_swapbacked(folio))
+		if (vm_flags & VM_EXEC)
 			return PAGEREF_ACTIVATE;
 
 		return PAGEREF_KEEP;
-- 
2.23.0


  parent reply	other threads:[~2022-04-09  9:34 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-09  9:34 [PATCH v2 0/9] A few cleanup and fixup patches for vmscan Miaohe Lin
2022-04-09  9:34 ` [PATCH v2 1/9] mm/vmscan: add a comment about MADV_FREE pages check in folio_check_dirty_writeback Miaohe Lin
2022-04-11 11:50   ` ying.huang
2022-04-12  3:07     ` Miaohe Lin
2022-04-11 14:16   ` Christoph Hellwig
2022-04-12  3:15     ` Miaohe Lin
2022-04-12  8:44   ` Oscar Salvador
2022-04-09  9:34 ` [PATCH v2 2/9] mm/vmscan: remove unneeded can_split_huge_page check Miaohe Lin
2022-04-11 14:18   ` Christoph Hellwig
2022-04-12  3:14     ` Miaohe Lin
2022-04-12  0:52   ` ying.huang
2022-04-12  8:59   ` Oscar Salvador
2022-04-12 13:42     ` Miaohe Lin
2022-04-12 14:59       ` David Hildenbrand
2022-04-13  1:26         ` ying.huang
2022-04-13  2:17           ` Miaohe Lin
2022-04-15  3:07           ` ying.huang
2022-04-16  2:34             ` Miaohe Lin
2022-04-09  9:34 ` [PATCH v2 3/9] mm/vmscan: introduce helper function reclaim_page_list() Miaohe Lin
2022-04-09 13:44   ` Matthew Wilcox
2022-04-11  1:53     ` Miaohe Lin
2022-04-11  3:17       ` Matthew Wilcox
2022-04-11  3:26         ` Miaohe Lin
2022-04-09  9:34 ` [PATCH v2 4/9] mm/vmscan: save a bit of stack space in shrink_lruvec Miaohe Lin
2022-04-12  0:57   ` ying.huang
2022-04-12  3:13     ` Miaohe Lin
2022-04-09  9:34 ` Miaohe Lin [this message]
2022-04-12  0:59   ` [PATCH v2 5/9] mm/vmscan: activate swap-backed executable folios after first usage ying.huang
2022-04-09  9:34 ` [PATCH v2 6/9] mm/vmscan: take all base pages of THP into account when race with speculative reference Miaohe Lin
2022-04-09  9:34 ` [PATCH v2 7/9] mm/vmscan: take min_slab_pages into account when try to call shrink_node Miaohe Lin
2022-04-12  1:36   ` ying.huang
2022-04-09  9:34 ` [PATCH v2 8/9] mm/vmscan: remove obsolete comment in kswapd_run Miaohe Lin
2022-04-09  9:35 ` [PATCH v2 9/9] mm/vmscan: use helper folio_is_file_lru() Miaohe Lin

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