[tip:numa/core] MIPS/thp: Add pmd_pgprot() implementation

[tip-bot for Ralf Baechle <ralf@linux-mips.org>]

Commit-ID:  8cd7680d8b7241941fd51d83302677d58b447223
Gitweb:     http://git.kernel.org/tip/8cd7680d8b7241941fd51d83302677d58b447223
Author:     Ralf Baechle <ralf@linux-mips.org>
AuthorDate: Thu, 18 Oct 2012 16:51:01 +0200
Committer:  Ingo Molnar <mingo@kernel.org>
CommitDate: Fri, 19 Oct 2012 23:46:11 +0200

MIPS/thp: Add pmd_pgprot() implementation

Resolve the semantic conflict between the new THP code
on MIPS and the new NUMA code, in linux-next, by adding
the pmd_pgprot() method needed by the NUMA code.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20121018145101.GA17439@linux-mips.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/mips/include/asm/pgtable.h |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/mips/include/asm/pgtable.h b/arch/mips/include/asm/pgtable.h
index c02158b..bbe4cda 100644
--- a/arch/mips/include/asm/pgtable.h
+++ b/arch/mips/include/asm/pgtable.h
@@ -89,6 +89,8 @@ static inline int is_zero_pfn(unsigned long pfn)
 
 extern void paging_init(void);
 
+#define pmd_pgprot(x)		__pgprot(pmd_val(x) & ~_PAGE_CHG_MASK)
+
 /*
  * Conversion functions: convert a page and protection to a page entry,
  * and a page entry and page directory to the page they refer to.