powerpc: Don't use a 16G page if beyond mem= limits

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If mem= is used on the boot command line to limit memory then the memory block where a 16G page resides may not be available.

Thanks to Michael Ellerman for finding the problem.

Signed-off-by: Jon Tollefson <kniht@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

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Jon Tollefson 2008-10-21 15:27:36 +00:00 • committed by Benjamin Herrenschmidt

parent 71773f0337

commit 4792adbac9

1 changed files with 4 additions and 2 deletions

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arch/powerpc/mm/hash_utils_64.c

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