The patch titled
Subject: mm/compaction: correct comment of candidate pfn in fast_isolate_freepages
has been added to the -mm mm-unstable branch. Its filename is
mm-compaction-correct-comment-of-candidate-pfn-in-fast_isolate_freepages.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-compaction-correct-comment-of-candidate-pfn-in-fast_isolate_freepages.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Kemeng Shi <shikemeng@xxxxxxxxxx>
Subject: mm/compaction: correct comment of candidate pfn in fast_isolate_freepages
Date: Fri, 21 Jul 2023 23:09:56 +0800
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@xxxxxxxxxx
Link: https://lkml.kernel.org/r/20230721150957.2058634-2-shikemeng@xxxxxxxxxx
Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxx>
Cc: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/compaction.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/compaction.c~mm-compaction-correct-comment-of-candidate-pfn-in-fast_isolate_freepages
+++ a/mm/compaction.c
@@ -1549,7 +1549,7 @@ static void fast_isolate_freepages(struc
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);
_
Patches currently in -mm which might be from shikemeng@xxxxxxxxxx are
mm-compaction-correct-comment-of-candidate-pfn-in-fast_isolate_freepages.patch
mm-compaction-avoid-unneeded-pageblock_end_pfn-when-no_set_skip_hint-is-set.patch
