linux-kernel - [PATCH 8/8] mm/compaction: only set skip flag if cc->no_set_skip

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Message-Id: <20230728171037.2219226-9-shikemeng@huaweicloud.com>
Date:   Sat, 29 Jul 2023 01:10:37 +0800
From:   Kemeng Shi <shikemeng@...weicloud.com>
To:     akpm@...ux-foundation.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, baolin.wang@...ux.alibaba.com,
        mgorman@...hsingularity.net, willy@...radead.org, david@...hat.com
Cc:     shikemeng@...weicloud.com
Subject: [PATCH 8/8] mm/compaction: only set skip flag if cc->no_set_skip_hint is false

Keep the same logic as update_pageblock_skip, only set skip if
no_set_skip_hint is false which is more reasonable.

Signed-off-by: Kemeng Shi <shikemeng@...weicloud.com>
---
 mm/compaction.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/compaction.c b/mm/compaction.c
index 188d610eb3b6..6841c0496223 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -1418,7 +1418,7 @@ fast_isolate_around(struct compact_control *cc, unsigned long pfn)
 	isolate_freepages_block(cc, &start_pfn, end_pfn, &cc->freepages, 1, false);
 
 	/* Skip this pageblock in the future as it's full or nearly full */
-	if (start_pfn == end_pfn)
+	if (start_pfn == end_pfn && !cc->no_set_skip_hint)
 		set_pageblock_skip(page);
 }
 
-- 
2.30.0