linux-kernel - [PATCH v2 1/2] mm/compaction: correct comment of candidate pfn in fast_isolate

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Message-ID: <20230721150957.2058634-2-shikemeng@huawei.com>
Date:   Fri, 21 Jul 2023 23:09:56 +0800
From:   Kemeng Shi <shikemeng@...wei.com>
To:     <akpm@...ux-foundation.org>, <linux-mm@...ck.org>,
        <linux-kernel@...r.kernel.org>, <baolin.wang@...ux.alibaba.com>
CC:     <shikemeng@...wei.com>
Subject: [PATCH v2 1/2] mm/compaction: correct comment of candidate pfn in fast_isolate_freepages

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.

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

diff --git a/mm/compaction.c b/mm/compaction.c
index eb1d3d9a422c..c0d8d08fc163 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -1526,7 +1526,7 @@ 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);
 
-- 
2.30.0