The patch titled Subject: memory-hotplug: auto offline page_cgroup when onlining memory block failed has been removed from the -mm tree. Its filename was memory-hotplug-auto-offline-page_cgroup-when-onlining-memory-block-failed.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: Wen Congyang <wency@xxxxxxxxxxxxxx> Subject: memory-hotplug: auto offline page_cgroup when onlining memory block failed When a memory block is onlined, we will try allocate memory on that node to store page_cgroup. If onlining the memory block failed, we don't offline the page cgroup, and we have no chance to offline this page cgroup unless the memory block is onlined successfully again. It will cause that we can't hot-remove the memory device on that node, because some memory is used to store page cgroup. If onlining the memory block is failed, there is no need to stort page cgroup for this memory. So auto offline page_cgroup when onlining memory block failed. Signed-off-by: Wen Congyang <wency@xxxxxxxxxxxxxx> Cc: David Rientjes <rientjes@xxxxxxxxxx> Cc: Jiang Liu <liuj97@xxxxxxxxx> Cc: Len Brown <len.brown@xxxxxxxxx> Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> Cc: Paul Mackerras <paulus@xxxxxxxxx> Cc: Christoph Lameter <cl@xxxxxxxxx> Cc: Minchan Kim <minchan.kim@xxxxxxxxx> Acked-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> Cc: Yasuaki Ishimatsu <isimatu.yasuaki@xxxxxxxxxxxxxx> Cc: Dave Hansen <dave@xxxxxxxxxxxxxxxxxx> Cc: Mel Gorman <mel@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/page_cgroup.c | 3 +++ 1 file changed, 3 insertions(+) diff -puN mm/page_cgroup.c~memory-hotplug-auto-offline-page_cgroup-when-onlining-memory-block-failed mm/page_cgroup.c --- a/mm/page_cgroup.c~memory-hotplug-auto-offline-page_cgroup-when-onlining-memory-block-failed +++ a/mm/page_cgroup.c @@ -251,6 +251,9 @@ static int __meminit page_cgroup_callbac mn->nr_pages, mn->status_change_nid); break; case MEM_CANCEL_ONLINE: + offline_page_cgroup(mn->start_pfn, + mn->nr_pages, mn->status_change_nid); + break; case MEM_GOING_OFFLINE: break; case MEM_ONLINE: _ Patches currently in -mm which might be from wency@xxxxxxxxxxxxxx are origin.patch node_states-introduce-n_memory.patch cpuset-use-n_memory-instead-n_high_memory.patch procfs-use-n_memory-instead-n_high_memory.patch memcontrol-use-n_memory-instead-n_high_memory.patch oom-use-n_memory-instead-n_high_memory.patch mmmigrate-use-n_memory-instead-n_high_memory.patch mempolicy-use-n_memory-instead-n_high_memory.patch hugetlb-use-n_memory-instead-n_high_memory.patch vmstat-use-n_memory-instead-n_high_memory.patch kthread-use-n_memory-instead-n_high_memory.patch init-use-n_memory-instead-n_high_memory.patch vmscan-use-n_memory-instead-n_high_memory.patch page_alloc-use-n_memory-instead-n_high_memory-change-the-node_states-initialization.patch hotplug-update-nodemasks-management.patch hotplug-update-nodemasks-management-fix.patch numa-add-config_movable_node-for-movable-dedicated-node.patch numa-add-config_movable_node-for-movable-dedicated-node-fix.patch memory_hotplug-allow-online-offline-memory-to-result-movable-node.patch mm-introduce-new-field-managed_pages-to-struct-zone.patch mm-provide-more-accurate-estimation-of-pages-occupied-by-memmap.patch mm-provide-more-accurate-estimation-of-pages-occupied-by-memmap-fix.patch linux-next.patch x86-numa-dont-check-if-node-is-numa_no_node.patch x86-fix-the-argument-passed-to-sync_global_pgds.patch x86-make-mem=-option-to-work-for-efi-platform.patch documentation-kernel-parameterstxt-update-mem=-options-spec-according-to-its-implementation.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html