From e6bd14eca207bf822b7c743818ba6e04889348ec Mon Sep 17 00:00:00 2001
From: Kemeng Shi <shikemeng@huawei.com>
Date: Fri, 21 Jul 2023 23:09:56 +0800
Subject: [PATCH] mm/compaction: correct comment of candidate pfn in
fast_isolate_freepages
Patch series "Two minor cleanups for compaction", v2.
This series contains two random cleanups for compaction.
This patch (of 2):
If no preferred one was not found, we will use candidate page with maximum
pfn > min_pfn which is saved in high_pfn. Correct "minimum" to "maximum
candidate" in comment.
Link: https://lkml.kernel.org/r/20230721150957.2058634-1-shikemeng@huawei.com
Link: https://lkml.kernel.org/r/20230721150957.2058634-2-shikemeng@huawei.com
Signed-off-by: Kemeng Shi <shikemeng@huawei.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/compaction.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/compaction.c b/mm/compaction.c
index 02239abed6ce4..480f29bcf823b 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -1554,7 +1554,7 @@ static void fast_isolate_freepages(struct compact_control *cc)
break;
}
- /* Use a minimum pfn if a preferred one was not found */
+ /* Use a maximum candidate pfn if a preferred one was not found */
if (!page && high_pfn) {
page = pfn_to_page(high_pfn);
--
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