arm64: hugetlb: Cleanup setup_hugepagesz

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Replace a lot of if statements with switch and case labels to make it
much clearer which huge page sizes are supported.

Also, we prevent PUD_SIZE from being used on systems not running with
4KB PAGE_SIZE. Before if one supplied PUD_SIZE in these circumstances,
then unusuable huge page sizes would be in use.

Fixes: 084bd29810 ("ARM64: mm: HugeTLB support.")
Cc: David Woods <dwoods@mellanox.com>
Signed-off-by: Steve Capper <steve.capper@arm.com>
Signed-off-by: Punit Agrawal <punit.agrawal@arm.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Steve Capper 2017-08-22 11:42:49 +01:00 • committed by Catalin Marinas

parent 5cd028b9d9

commit 828f193dd6

1 changed files with 13 additions and 13 deletions

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arch/arm64/mm/hugetlbpage.c

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