The quilt patch titled
Subject: mm, compaction: check if a page has been captured before draining PCP pages
has been removed from the -mm tree. Its filename was
mm-compaction-check-if-a-page-has-been-captured-before-draining-pcp-pages.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Subject: mm, compaction: check if a page has been captured before draining PCP pages
Date: Wed, 25 Jan 2023 13:44:32 +0000
If a page has been captured then draining is unnecssary so check first for
a captured page.
Link: https://lkml.kernel.org/r/20230125134434.18017-3-mgorman@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Cc: Chuyi Zhou <zhouchuyi@xxxxxxxxxxxxx>
Cc: Jiri Slaby <jirislaby@xxxxxxxxxx>
Cc: Maxim Levitsky <mlevitsk@xxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Cc: Pedro Falcato <pedro.falcato@xxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
--- a/mm/compaction.c~mm-compaction-check-if-a-page-has-been-captured-before-draining-pcp-pages
+++ a/mm/compaction.c
@@ -2439,6 +2439,12 @@ compact_zone(struct compact_control *cc,
}
}
+ /* Stop if a page has been captured */
+ if (capc && capc->page) {
+ ret = COMPACT_SUCCESS;
+ break;
+ }
+
check_drain:
/*
* Has the migration scanner moved away from the previous
@@ -2457,12 +2463,6 @@ check_drain:
last_migrated_pfn = 0;
}
}
-
- /* Stop if a page has been captured */
- if (capc && capc->page) {
- ret = COMPACT_SUCCESS;
- break;
- }
}
out:
_
Patches currently in -mm which might be from mgorman@xxxxxxxxxxxxxxxxxxx are
