arm64: mm: enable CONFIG_HOLES_IN_ZONE for NUMA
authorArd Biesheuvel <ard.biesheuvel@linaro.org>
Wed, 14 Dec 2016 09:11:47 +0000 (09:11 +0000)
committerWill Deacon <will.deacon@arm.com>
Mon, 6 Feb 2017 18:51:50 +0000 (18:51 +0000)
commit6d526ee26ccdcbf8eb9ddd0b584b35ac17f8c566
tree0cd336035c1c60d6d7020f9e7f93bc978894dcf6
parentc0bfc549e96231e0ead4424de6e4933fde819d70
arm64: mm: enable CONFIG_HOLES_IN_ZONE for NUMA

The NUMA code may get confused by the presence of NOMAP regions within
zones, resulting in spurious BUG() checks where the node id deviates
from the containing zone's node id.

Since the kernel has no business reasoning about node ids of pages it
does not own in the first place, enable CONFIG_HOLES_IN_ZONE to ensure
that such pages are disregarded.

Acked-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
arch/arm64/Kconfig