tree 8854e9dd2d21ac440f691dd16881e596db61896b
parent 706e6b2caf285d3eb056c2847b7c53ae823e8a87
author David Gibson <david@gibson.dropbear.id.au> 1132802175 +1100
committer Paul Mackerras <paulus@samba.org> 1136778628 +1100

[PATCH] powerpc: Make hugepage mappings respect hint addresses

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>