The patch titled Subject: mm/memory_hotplug: fix potential permanent lru cache disable has been removed from the -mm tree. Its filename was mm-memory_hotplug-fix-potential-permanent-lru-cache-disable.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------ From: Miaohe Lin linmiaohe@huawei.com Subject: mm/memory_hotplug: fix potential permanent lru cache disable
If offline_pages failed after lru_cache_disable(), it forgot to do lru_cache_enable() in error path. So we would have lru cache disabled permanently in this case.
Link: https://lkml.kernel.org/r/20210821094246.10149-3-linmiaohe@huawei.com Fixes: d479960e44f2 ("mm: disable LRU pagevec during the migration temporarily") Signed-off-by: Miaohe Lin linmiaohe@huawei.com Reviewed-by: David Hildenbrand david@redhat.com Reviewed-by: Oscar Salvador osalvador@suse.de Reviewed-by: Naoya Horiguchi naoya.horiguchi@nec.com Cc: Chris Goldsworthy cgoldswo@codeaurora.org Cc: Michal Hocko mhocko@suse.com Cc: Minchan Kim minchan@kernel.org Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org ---
mm/memory_hotplug.c | 1 + 1 file changed, 1 insertion(+)
--- a/mm/memory_hotplug.c~mm-memory_hotplug-fix-potential-permanent-lru-cache-disable +++ a/mm/memory_hotplug.c @@ -1731,6 +1731,7 @@ failed_removal_isolated: undo_isolate_page_range(start_pfn, end_pfn, MIGRATE_MOVABLE); memory_notify(MEM_CANCEL_OFFLINE, &arg); failed_removal_pcplists_disabled: + lru_cache_enable(); zone_pcp_enable(zone); failed_removal: pr_debug("memory offlining [mem %#010llx-%#010llx] failed due to %s\n", _
Patches currently in -mm which might be from linmiaohe@huawei.com are
mm-gup-remove-set-but-unused-local-variable-major.patch mm-gup-remove-unneed-local-variable-orig_refs.patch mm-gup-remove-useless-bug_on-in-__get_user_pages.patch mm-gup-fix-potential-pgmap-refcnt-leak-in-__gup_device_huge.patch mm-gup-use-helper-page_aligned-in-populate_vma_page_range.patch shmem-remove-unneeded-variable-ret.patch shmem-remove-unneeded-header-file.patch shmem-remove-unneeded-function-forward-declaration.patch shmem-include-header-file-to-declare-swap_info.patch mm-memcg-remove-unused-functions.patch mm-memcg-save-some-atomic-ops-when-flush-is-already-true.patch mm-hwpoison-remove-unneeded-variable-unmap_success.patch mm-hwpoison-fix-potential-pte_unmap_unlock-pte-error.patch mm-hwpoison-change-argument-struct-page-hpagep-to-hpage.patch mm-hwpoison-fix-some-obsolete-comments.patch mm-vmscan-remove-the-pagedirty-check-after-madv_free-pages-are-page_ref_freezed.patch mm-vmscan-remove-misleading-setting-to-sc-priority.patch mm-vmscan-remove-unneeded-return-value-of-kswapd_run.patch mm-vmscan-add-else-to-remove-check_pending-label.patch mm-vmstat-correct-some-wrong-comments.patch mm-vmstat-simplify-the-array-size-calculation.patch mm-vmstat-remove-unneeded-return-value.patch mm-memory_hotplug-use-helper-zone_is_zone_device-to-simplify-the-code.patch mm-memory_hotplug-make-hwpoisoned-dirty-swapcache-pages-unmovable.patch mm-zsmallocc-close-race-window-between-zs_pool_dec_isolated-and-zs_unregister_migration.patch mm-zsmallocc-combine-two-atomic-ops-in-zs_pool_dec_isolated.patch