Thread (26 messages) 26 messages, 5 authors, 2013-05-17

[RFC PATCH v2 10/11] ARM64: mm: Raise MAX_ORDER for 64KB pages and THP.

From: catalin.marinas@arm.com (Catalin Marinas)
Date: 2013-05-16 14:59:42
Also in: linux-arch, linux-mm 

On Wed, May 08, 2013 at 10:52:42AM +0100, Steve Capper wrote:
The buddy allocator has a default MAX_ORDER of 11, which is too
low to allocate enough memory for 512MB Transparent HugePages if
our base page size is 64KB.

This patch introduces MAX_ZONE_ORDER and sets it to 14 when 64KB
pages are used in conjuction with THP, otherwise the default value
of 11 is used.

Signed-off-by: Steve Capper <redacted>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
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