incoming

incoming

[Andrew Morton]

2 patches, based on 6e764bcd1cf72a2846c0e53d3975a09b242c04c9.

Subsystems affected by this patch series:

  mm/memory-hotplug
  MAINTAINERS

Subsystem: mm/memory-hotplug

    Miaohe Lin <linmiaohe@huawei.com>:
      mm/memory_hotplug: fix potential permanent lru cache disable

Subsystem: MAINTAINERS

    Namjae Jeon <namjae.jeon@samsung.com>:
      MAINTAINERS: exfat: update my email address

 MAINTAINERS         |    2 +-
 mm/memory_hotplug.c |    1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

[patch 1/2] mm/memory_hotplug: fix potential permanent lru cache disable

[Andrew Morton]

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",
_

[patch 2/2] MAINTAINERS: exfat: update my email address

[Andrew Morton]

From: Namjae Jeon <namjae.jeon@samsung.com>
Subject: 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 <namjae.jeon@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 MAINTAINERS |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/MAINTAINERS~maintainers-exfat-update-my-email-address
+++ a/MAINTAINERS
@@ -6955,7 +6955,7 @@ F:	include/uapi/linux/mdio.h
 F:	include/uapi/linux/mii.h
 
 EXFAT FILE SYSTEM
-M:	Namjae Jeon <namjae.jeon@samsung.com>
+M:	Namjae Jeon <linkinjeon@kernel.org>
 M:	Sungjong Seo <sj1557.seo@samsung.com>
 L:	linux-fsdevel@vger.kernel.org
 S:	Maintained
_

Re: [patch 1/2] mm/memory_hotplug: fix potential permanent lru cache disable

[Minchan Kim]

On Wed, Aug 25, 2021 at 12:17:55PM -0700, Andrew Morton wrote:
> 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>
Acked-by: Minchan Kim <minchan@kernel.org>

Thanks for catching.