From: Laura Abbott <labbott@redhat.com>
Date: Thu, 25 Jun 2015 00:04:20 +0000 (+0100)
Subject: ARM: 8394/1: update memblock limit after mapping lowmem
X-Git-Tag: omap-for-v4.2/fixes-rc2-v2~34^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3de1f52a3ae823265299409e276f56cdadddc310;p=pandora-kernel.git

ARM: 8394/1: update memblock limit after mapping lowmem

The memblock limit is currently used in find_limits
to find the bounds for ZONE_NORMAL. The memblock
limit may need to be rounded down a PMD size to ensure
allocations are fully mapped though. This has the side
effect of reducing the amount of memory in ZONE_NORMAL.
Once all lowmem is mapped, it's safe to change the memblock
limit back to include the unaligned section. Adjust the
memblock limit after lowmem mapping is complete.

Before:
 # cat /proc/zoneinfo | grep managed
        managed  62907
        managed  424

After:
 # cat /proc/zoneinfo | grep managed
        managed  63331

Signed-off-by: Laura Abbott <labbott@fedoraproject.org>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

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