[PATCH] powerpc: Make hugepage mappings respect hint addresses

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Currently, the powerpc version of hugetlb_get_unmapped_area() entirely
ignores the hint address.  The only way to get a hugepage mapping at a
specified address is with MAP_FIXED, in which case there's no way
(short of parsing /proc/self/maps) for userspace to tell if it will
clobber an existing mapping.  This is inconvenient, so the patch below
makes hugepage mappings use the given hint address if possible.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

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David Gibson 2005-11-24 14:16:15 +11:00 • committed by Paul Mackerras

parent 706e6b2caf

commit 456752f750

1 changed files with 39 additions and 4 deletions

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arch/powerpc/mm/hugetlbpage.c

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