From: Miaohe Lin <linmiaohe@huawei.com>
To: <akpm@linux-foundation.org>
Cc: <vbabka@suse.cz>, <pintu@codeaurora.org>,
<charante@codeaurora.org>, <linux-mm@kvack.org>,
<linux-kernel@vger.kernel.org>, <linmiaohe@huawei.com>
Subject: [PATCH 10/12] mm: compaction: make compaction_zonelist_suitable return false when COMPACT_SUCCESS
Date: Mon, 18 Apr 2022 22:12:51 +0800 [thread overview]
Message-ID: <20220418141253.24298-11-linmiaohe@huawei.com> (raw)
In-Reply-To: <20220418141253.24298-1-linmiaohe@huawei.com>
When compact_result indicates that the allocation should now succeed,
i.e. compact_result = COMPACT_SUCCESS, compaction_zonelist_suitable
should return false because there is no need to do compaction now.
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
---
mm/compaction.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/compaction.c b/mm/compaction.c
index 82c54d70a978..334a573485fe 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -2291,7 +2291,7 @@ bool compaction_zonelist_suitable(struct alloc_context *ac, int order,
available += zone_page_state_snapshot(zone, NR_FREE_PAGES);
compact_result = __compaction_suitable(zone, order, alloc_flags,
ac->highest_zoneidx, available);
- if (compact_result != COMPACT_SKIPPED)
+ if (compact_result == COMPACT_CONTINUE)
return true;
}
--
2.23.0
next prev parent reply other threads:[~2022-04-18 14:12 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-18 14:12 [PATCH 00/12] A few cleanup and fixup patches for compaction Miaohe Lin
2022-04-18 14:12 ` [PATCH 01/12] mm: compaction: remove unneeded return value of kcompactd_run Miaohe Lin
2022-04-18 14:12 ` [PATCH 02/12] mm: compaction: remove unneeded pfn update Miaohe Lin
2022-04-18 14:12 ` [PATCH 03/12] mm: compaction: remove unneeded assignment to isolate_start_pfn Miaohe Lin
2022-04-18 14:12 ` [PATCH 04/12] mm: compaction: clean up comment for sched contention Miaohe Lin
2022-04-18 14:12 ` [PATCH 05/12] mm: compaction: clean up comment about suitable migration target recheck Miaohe Lin
2022-04-18 14:12 ` [PATCH 06/12] mm: compaction: use COMPACT_CLUSTER_MAX in compaction.c Miaohe Lin
2022-04-18 14:12 ` [PATCH 07/12] mm: compaction: use helper compound_nr in isolate_migratepages_block Miaohe Lin
2022-04-18 14:12 ` [PATCH 08/12] mm: compaction: clean up comment about async compaction in isolate_migratepages Miaohe Lin
2022-04-18 14:12 ` [PATCH 09/12] mm: compaction: avoid possible NULL pointer dereference in kcompactd_cpu_online Miaohe Lin
2022-04-19 3:55 ` Andrew Morton
2022-04-19 6:47 ` Miaohe Lin
2022-04-19 7:42 ` David Hildenbrand
2022-04-19 11:05 ` Miaohe Lin
2022-04-18 14:12 ` Miaohe Lin [this message]
2022-04-18 14:12 ` [PATCH 11/12] mm: compaction: simplify the code in __compact_finished Miaohe Lin
2022-04-18 14:12 ` [PATCH 12/12] mm: compaction: make sure highest is above the min_pfn Miaohe Lin
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