+ mm-compaction-set-compact_cached_free_pfn-correctly-in-update_pageblock_skip.patch added to mm-unstable branch

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The patch titled
     Subject: mm/compaction: set compact_cached_free_pfn correctly in update_pageblock_skip
has been added to the -mm mm-unstable branch.  Its filename is
     mm-compaction-set-compact_cached_free_pfn-correctly-in-update_pageblock_skip.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-compaction-set-compact_cached_free_pfn-correctly-in-update_pageblock_skip.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@xxxxxxxxxxxxxxx>
Subject: mm/compaction: set compact_cached_free_pfn correctly in update_pageblock_skip
Date: Thu, 3 Aug 2023 17:48:58 +0800

Patch series "Fixes and cleanups to compaction", v2.

This series contains random fixes and cleanups to free page isolation in
compaction.  This is based on another compact series[1].  More details can
be found in respective patches.


This patch (of 4):

We will set skip to page block of block_start_pfn, it's more reasonable to
set compact_cached_free_pfn to page block before the block_start_pfn.

Link: https://lkml.kernel.org/r/20230803094901.2915942-1-shikemeng@xxxxxxxxxxxxxxx
Link: https://lkml.kernel.org/r/20230803094901.2915942-2-shikemeng@xxxxxxxxxxxxxxx
Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx>
Reviewed-by: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Cc: Kemeng Shi <shikemeng@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 mm/compaction.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/mm/compaction.c~mm-compaction-set-compact_cached_free_pfn-correctly-in-update_pageblock_skip
+++ a/mm/compaction.c
@@ -1714,7 +1714,8 @@ static void isolate_freepages(struct com
 
 		/* Update the skip hint if the full pageblock was scanned */
 		if (isolate_start_pfn == block_end_pfn)
-			update_pageblock_skip(cc, page, block_start_pfn);
+			update_pageblock_skip(cc, page, block_start_pfn -
+					      pageblock_nr_pages);
 
 		/* Are enough freepages isolated? */
 		if (cc->nr_freepages >= cc->nr_migratepages) {
_

Patches currently in -mm which might be from shikemeng@xxxxxxxxxxxxxxx are

mm-correct-stale-comment-of-function-check_pte.patch
mm-page_table_check-remove-unused-parameters-in-page_table_check_clear.patch
mm-page_table_check-remove-unused-parameters-in-page_table_check_set.patch
mm-page_table_check-remove-unused-parameter-in-page_table_check_pte_clear.patch
mm-page_table_check-remove-unused-parameter-in-page_table_check_pmd_clear.patch
mm-page_table_check-remove-unused-parameter-in-page_table_check_pud_clear.patch
mm-page_table_check-remove-unused-parameter-in-page_table_check_pte_set.patch
mm-page_table_check-remove-unused-parameter-in-page_table_check_pmd_set.patch
mm-page_table_check-remove-unused-parameter-in-page_table_check_pud_set.patch
mm-page_ext-remove-unused-return-value-of-offline_page_ext.patch
mm-page_ext-remove-rollback-for-untouched-mem_section-in-online_page_ext.patch
mm-page_ext-move-functions-around-for-minor-cleanups-to-page_ext.patch
mm-page_ext-add-common-function-to-get-client-data-from-page_ext.patch
mm-page_ext-use-page_ext_data-helper-in-page_table_check.patch
mm-page_ext-use-page_ext_data-helper-in-page_owner.patch
mm-rmap-correct-stale-comment-of-rmap_walk_anon-and-rmap_walk_file.patch
mm-page_poison-remove-unused-page_exth-from-page_poison.patch
mm-vmstat-remove-unused-page_exth-from-vmstat.patch
mm-page_ext-move-page_ext_operations-definition-under-config_page_extension.patch
mm-compaction-set-compact_cached_free_pfn-correctly-in-update_pageblock_skip.patch
mm-compaction-remove-unnecessary-cursor-page-in-isolate_freepages_block.patch
mm-compaction-remove-unnecessary-else-continue-at-end-of-loop-in-isolate_freepages_block.patch




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