mm,memory_hotplug: relax fully spanned sections check
authorOscar Salvador <osalvador@suse.de>
Wed, 5 May 2021 01:39:36 +0000 (18:39 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 5 May 2021 18:27:26 +0000 (11:27 -0700)
commitdd8e2f230d82ecd60504fba48bb10bf3760b674e
treec067c9fd2f962a71f017d76705024ae126a389d8
parent8736cc2d002f14e90d2b33bc5bef1740f6275ba4
mm,memory_hotplug: relax fully spanned sections check

We want {online,offline}_pages to operate on whole memblocks, but
memmap_on_memory will poke pageblock_nr_pages aligned holes in the
beginning, which is a special case we want to allow.  Relax the check to
account for that case.

Link: https://lkml.kernel.org/r/20210421102701.25051-3-osalvador@suse.de
Signed-off-by: Oscar Salvador <osalvador@suse.de>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/memory_hotplug.c