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| author |   Jeremy Fitzhardinge <jeremy@goop.org> | 2009-01-22 14:24:16 -0800 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2009-01-22 23:35:20 +0100 |
| commit | ab897d2013128f470240a541b31cf5e636984e71 (patch) | |
| tree | 844ade53ec6d74f84631cac2fe8975738022929f /arch/x86/include | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband (diff) | |
| download | linux-dev-ab897d2013128f470240a541b31cf5e636984e71.tar.xz linux-dev-ab897d2013128f470240a541b31cf5e636984e71.zip | |
x86/pvops: remove pte_flags pvop
pte_flags() was introduced as a new pvop in order to extract just the
flags portion of a pte, which is a potentially cheaper operation than
extracting the page number as well. It turns out this operation is
not needed, because simply using a mask to extract the flags from a
pte is sufficient for all current users.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/page.h | 3 | ||||
| -rw-r--r-- | arch/x86/include/asm/paravirt.h | 18 |
2 files changed, 1 insertions, 20 deletions
diff --git a/arch/x86/include/asm/page.h b/arch/x86/include/asm/page.h index e9873a2e8695..6b9810859daf 100644 --- a/arch/x86/include/asm/page.h +++ b/arch/x86/include/asm/page.h @@ -147,7 +147,7 @@ static inline pteval_t native_pte_val(pte_t pte) return pte.pte; } -static inline pteval_t native_pte_flags(pte_t pte) +static inline pteval_t pte_flags(pte_t pte) { return native_pte_val(pte) & PTE_FLAGS_MASK; } @@ -173,7 +173,6 @@ static inline pteval_t native_pte_flags(pte_t pte) #endif #define pte_val(x) native_pte_val(x) -#define pte_flags(x) native_pte_flags(x) #define __pte(x) native_make_pte(x) #endif /* CONFIG_PARAVIRT */ diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h index ba3e2ff6aedc..e25c410f3d8c 100644 --- a/arch/x86/include/asm/paravirt.h +++ b/arch/x86/include/asm/paravirt.h @@ -279,7 +279,6 @@ struct pv_mmu_ops { pte_t *ptep, pte_t pte); pteval_t (*pte_val)(pte_t); - pteval_t (*pte_flags)(pte_t); pte_t (*make_pte)(pteval_t pte); pgdval_t (*pgd_val)(pgd_t); @@ -1084,23 +1083,6 @@ static inline pteval_t pte_val(pte_t pte) return ret; } -static inline pteval_t pte_flags(pte_t pte) -{ - pteval_t ret; - - if (sizeof(pteval_t) > sizeof(long)) - ret = PVOP_CALL2(pteval_t, pv_mmu_ops.pte_flags, - pte.pte, (u64)pte.pte >> 32); - else - ret = PVOP_CALL1(pteval_t, pv_mmu_ops.pte_flags, - pte.pte); - -#ifdef CONFIG_PARAVIRT_DEBUG - BUG_ON(ret & PTE_PFN_MASK); -#endif - return ret; -} - static inline pgd_t __pgd(pgdval_t val) { pgdval_t ret; |