The patch titled
Subject: mm/memory_hotplug.c: drop unneeded check from unregister_mem_sect_under_nodes
has been added to the -mm tree. Its filename is
mm-memory_hotplug-drop-unneeded-check-from-unregister_mem_sect_under_nodes.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-memory_hotplug-drop-unneeded-check-from-unregister_mem_sect_under_nodes.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-memory_hotplug-drop-unneeded-check-from-unregister_mem_sect_under_nodes.patch
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------------------------------------------------------
From: Oscar Salvador <osalvador@xxxxxxx>
Subject: mm/memory_hotplug.c: drop unneeded check from unregister_mem_sect_under_nodes
Before calling to unregister_mem_sect_under_nodes(),
remove_memory_section() already checks if we got a valid memory_block.
No need to check that again in unregister_mem_sect_under_nodes().
Link: http://lkml.kernel.org/r/20180810152931.23004-3-osalvador@xxxxxxxxxxxxxxxxxx
Signed-off-by: Oscar Salvador <osalvador@xxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: Jonathan Cameron <jonathan.cameron@xxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: <yasu.isimatu@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/base/node.c | 4 ----
1 file changed, 4 deletions(-)
--- a/drivers/base/node.c~mm-memory_hotplug-drop-unneeded-check-from-unregister_mem_sect_under_nodes
+++ a/drivers/base/node.c
@@ -455,10 +455,6 @@ int unregister_mem_sect_under_nodes(stru
NODEMASK_ALLOC(nodemask_t, unlinked_nodes, GFP_KERNEL);
unsigned long pfn, sect_start_pfn, sect_end_pfn;
- if (!mem_blk) {
- NODEMASK_FREE(unlinked_nodes);
- return -EFAULT;
- }
if (!unlinked_nodes)
return -ENOMEM;
nodes_clear(*unlinked_nodes);
_
Patches currently in -mm which might be from osalvador@xxxxxxx are
mm-memory_hotplug-make-add_memory_resource-use-__try_online_node.patch
mm-memory_hotplug-call-register_mem_sect_under_node.patch
mm-memory_hotplug-make-register_mem_sect_under_node-a-cb-of-walk_memory_range.patch
mm-memory_hotplug-drop-unnecessary-checks-from-register_mem_sect_under_node.patch
mm-sparse-make-sparse_init_one_section-void-and-remove-check.patch
mm-remove-zone_id-and-make-use-of-zone_idx-in-is_dev_zone.patch
mm-page_alloc-move-ifdefery-out-of-free_area_init_core.patch
mm-page_alloc-inline-function-to-handle-config_deferred_struct_page_init.patch
mm-page_alloc-introduce-free_area_init_core_hotplug.patch
mm-page_alloc-introduce-free_area_init_core_hotplug-v6.patch
mm-memory_hotplug-drop-unused-args-from-remove_memory_section.patch
mm-memory_hotplug-drop-unneeded-check-from-unregister_mem_sect_under_nodes.patch
mm-memory_hotplug-cleanup-unregister_mem_sect_under_nodes.patch
