[PATCH 02/14] powerpc: Add a defconfig for 'corenet' 32-bit platforms

Timur Tabi timur at freescale.com
Sat May 21 05:25:23 EST 2011


Kumar Gala wrote:
>> > This may be unnecessary.  I originally set CONFIG_FORCE_MAX_ZONEORDER
>> > to 12 because the DIU driver needs to be able to allocate a contiguous
>> > 5MB memory block.  Setting it to 13 means a max of 16MB.  Is there a
>> > reason the default isn't good enough?

> Is there some concern here?  CONFIG_FORCE_MAX_ZONE_ORDER was set to 13 because of hugetlbfs

No, I just wanted to make sure it wasn't something that you just set for no
particular reason.

Hmm... is 16MB big enough for hugetlbfs?  I presume PAGE_SIZE is still 4KB, so a
value of 13 is just 16MB.

-- 
Timur Tabi
Linux kernel developer at Freescale



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