[merged mm-stable] mm-page_ext-remove-rollback-for-untouched-mem_section-in-online_page_ext.patch removed from -mm tree

[merged mm-stable] mm-page_ext-remove-rollback-for-untouched-mem_section-in-online_page_ext.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm/page_ext: remove rollback for untouched mem_section in online_page_ext
has been removed from the -mm tree.  Its filename was
     mm-page_ext-remove-rollback-for-untouched-mem_section-in-online_page_ext.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: Kemeng Shi <shikemeng@huaweicloud.com>
Subject: mm/page_ext: remove rollback for untouched mem_section in online_page_ext
Date: Fri, 14 Jul 2023 19:47:48 +0800

If init_section_page_ext failed, we only need rollback for mem_section
before failed mem_section.  Make rollback end point to failed mem_section
to remove unnecessary rollback.

As pfn += PAGES_PER_SECTION will be executed even if init_section_page_ext
failed.  So pfn points to mem_section after failed mem_section.  Subtract
one mem_section from pfn to get failed mem_section.

Link: https://lkml.kernel.org/r/20230714114749.1743032-3-shikemeng@huaweicloud.com
Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/page_ext.c |    1 +
 1 file changed, 1 insertion(+)

--- a/mm/page_ext.c~mm-page_ext-remove-rollback-for-untouched-mem_section-in-online_page_ext
+++ a/mm/page_ext.c
@@ -424,6 +424,7 @@ static int __meminit online_page_ext(uns
 		return 0;
 
 	/* rollback */
+	end = pfn - PAGES_PER_SECTION;
 	for (pfn = start; pfn < end; pfn += PAGES_PER_SECTION)
 		__free_page_ext(pfn);
 
_

Patches currently in -mm which might be from shikemeng@huaweicloud.com are

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-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
mm-compaction-correct-last_migrated_pfn-update-in-compact_zone.patch
mm-compaction-skip-page-block-marked-skip-in-isolate_migratepages_block.patch
mm-compaction-correct-comment-of-fast_find_migrateblock-in-isolate_migratepages.patch
mm-compaction-correct-comment-of-cached-migrate-pfn-update.patch
mm-compaction-correct-comment-to-complete-migration-failure.patch
mm-compaction-remove-unnecessary-return-for-void-function.patch
mm-compaction-only-set-skip-flag-if-cc-no_set_skip_hint-is-false.patch
mm-page_alloc-remove-track-of-active-pcp-lists-range-in-bulk-free.patch
mm-page_alloc-remove-unnecessary-parameter-batch-of-nr_pcp_free.patch
mm-compaction-remove-unused-parameter-pgdata-of-fragmentation_score_wmark.patch
mm-page_alloc-remove-unnecessary-inner-__get_pfnblock_flags_mask.patch
mm-page_alloc-use-get_pfnblock_migratetype-to-avoid-extra-page_to_pfn.patch