From 946746d1ad921e5f493b536533dda02ea22ca609 Mon Sep 17 00:00:00 2001 From: Miaohe Lin Date: Wed, 25 Aug 2021 12:17:55 -0700 Subject: [PATCH 1/2] 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 Reviewed-by: David Hildenbrand Reviewed-by: Oscar Salvador Reviewed-by: Naoya Horiguchi Cc: Chris Goldsworthy Cc: Michal Hocko Cc: Minchan Kim Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memory_hotplug.c | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 8cb75b26ea4f..86c3af79e874 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1731,6 +1731,7 @@ int __ref offline_pages(unsigned long start_pfn, unsigned long nr_pages) 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", From a34cc13add2c92573db79192967f6a512868ec56 Mon Sep 17 00:00:00 2001 From: Namjae Jeon Date: Wed, 25 Aug 2021 12:17:58 -0700 Subject: [PATCH 2/2] MAINTAINERS: exfat: update my email address My email address in exfat entry will be not available in a few days. Update it to my own kernel.org address. Link: https://lkml.kernel.org/r/20210825044833.16806-1-namjae.jeon@samsung.com Signed-off-by: Namjae Jeon Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- MAINTAINERS | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index c6b8a720c0bc..d7b4f32875a9 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6955,7 +6955,7 @@ F: include/uapi/linux/mdio.h F: include/uapi/linux/mii.h EXFAT FILE SYSTEM -M: Namjae Jeon +M: Namjae Jeon M: Sungjong Seo L: linux-fsdevel@vger.kernel.org S: Maintained