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)
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>

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