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authorJan Beulich <jbeulich@novell.com>2008-09-17 16:48:17 +0100
committerIngo Molnar <mingo@elte.hu>2008-10-13 10:21:18 +0200
commit606ee44dbb72fd48beb47f171d7b9cecf6ade6dd (patch)
treef7e773665ac577a3553a1460cf73c33f1cff6162 /include
parent5e72d9e4850c91b6a0f06fa803f7393b55a38aa8 (diff)
downloadop-kernel-dev-606ee44dbb72fd48beb47f171d7b9cecf6ade6dd.zip
op-kernel-dev-606ee44dbb72fd48beb47f171d7b9cecf6ade6dd.tar.gz
x86: make mm/gup.c more virtualization friendly
Since pte_flags() is much cheaper than pte_val() in some virtualized environments (namely, Xen), use the former whereever possible. Signed-off-by: Jan Beulich <jbeulich@novell.com> Cc: "Nick Piggin" <npiggin@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include')
-rw-r--r--include/asm-x86/pgtable.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h
index 8180540..182f9d4 100644
--- a/include/asm-x86/pgtable.h
+++ b/include/asm-x86/pgtable.h
@@ -206,7 +206,7 @@ static inline int pte_exec(pte_t pte)
static inline int pte_special(pte_t pte)
{
- return pte_val(pte) & _PAGE_SPECIAL;
+ return pte_flags(pte) & _PAGE_SPECIAL;
}
static inline unsigned long pte_pfn(pte_t pte)
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