sh: Provide _PAGE_SPECIAL for 32-bit.
authorPaul Mundt <lethal@linux-sh.org>
Wed, 22 Jul 2009 07:50:57 +0000 (16:50 +0900)
committerPaul Mundt <lethal@linux-sh.org>
Wed, 22 Jul 2009 07:50:57 +0000 (16:50 +0900)
commitc0b96cf639aa1bfa8983f734d4225091aa813e00
treed4b58d370379700157d0e34226a50956ec0362c9
parentfc6cca3917e6594eb93c0b5e2226342eab175041
sh: Provide _PAGE_SPECIAL for 32-bit.

Allocate one of the unused PTE bits for _PAGE_SPECIAL directly. This is
prep work for fast gup and the zero page revival.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
arch/sh/include/asm/pgtable_32.h