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authorMichal Hocko <mhocko@suse.com>2018-12-28 00:33:45 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-12-28 12:11:46 -0800
commit6cc2baf600eca841549e182b471d5c7b8c4143c3 (patch)
treebbcf04b07498e44b3e810cf88cc80dc36d2f53cb /mm
parente0392cf7c53a2c03dbda93de4073c78609b88c51 (diff)
mm, memory_hotplug: drop pointless block alignment checks from __offline_pages
This function is never called from a context which would provide misaligned pfn range so drop the pointless check. Link: http://lkml.kernel.org/r/20181107101830.17405-4-mhocko@kernel.org Signed-off-by: Michal Hocko <mhocko@suse.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Oscar Salvador <osalvador@suse.de> Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Baoquan He <bhe@redhat.com> Cc: Oscar Salvador <OSalvador@suse.com> Cc: William Kucharski <william.kucharski@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/memory_hotplug.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 2b2b3ccbbfb5..a92b1b8f6218 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1554,12 +1554,6 @@ static int __ref __offline_pages(unsigned long start_pfn,
struct zone *zone;
struct memory_notify arg;
- /* at least, alignment against pageblock is necessary */
- if (!IS_ALIGNED(start_pfn, pageblock_nr_pages))
- return -EINVAL;
- if (!IS_ALIGNED(end_pfn, pageblock_nr_pages))
- return -EINVAL;
-
mem_hotplug_begin();
/* This makes hotplug much easier...and readable.