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| author | Zachary Amsden <zach@vmware.com> | 2006-09-30 23:29:37 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-01 00:39:34 -0700 |
| commit | a93cb055a23f3172c1e6a22ac1dc4f1c07929b08 (patch) | |
| tree | b2118140583912c78d42a3ba950be39815addc14 | |
| parent | d6d861e3c963b4077c83e078e3e300c4b81f93e7 (diff) | |
| download | linux-stable-a93cb055a23f3172c1e6a22ac1dc4f1c07929b08.tar.gz linux-stable-a93cb055a23f3172c1e6a22ac1dc4f1c07929b08.tar.bz2 linux-stable-a93cb055a23f3172c1e6a22ac1dc4f1c07929b08.zip | |
[PATCH] paravirt: remove set pte atomic
Now that ptep_establish has a definition in PAE i386 3-level paging code, the
only paging model which is insane enough to have multi-word hardware PTEs
which are not efficient to set atomically, we can remove the ghost of
set_pte_atomic from other architectures which falesly duplicated it, and
remove all knowledge of it from the generic pgtable code.
set_pte_atomic is now a private pte operator which is specific to i386
Signed-off-by: Zachary Amsden <zach@vmware.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | include/asm-frv/pgtable.h | 2 | ||||
| -rw-r--r-- | include/asm-generic/pgtable.h | 8 | ||||
| -rw-r--r-- | include/asm-i386/pgtable-3level.h | 1 | ||||
| -rw-r--r-- | include/asm-m32r/pgtable-2level.h | 2 |
4 files changed, 1 insertions, 12 deletions
diff --git a/include/asm-frv/pgtable.h b/include/asm-frv/pgtable.h index 2fb3c6f05e03..ba1b37df69d5 100644 --- a/include/asm-frv/pgtable.h +++ b/include/asm-frv/pgtable.h @@ -176,8 +176,6 @@ do { \ } while(0) #define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) -#define set_pte_atomic(pteptr, pteval) set_pte((pteptr), (pteval)) - /* * pgd_offset() returns a (pgd_t *) * pgd_index() is used get the offset into the pgd page's array of pgd_t's; diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h index 56627fa453a6..9d774d07d95b 100644 --- a/include/asm-generic/pgtable.h +++ b/include/asm-generic/pgtable.h @@ -15,19 +15,11 @@ * Note: the old pte is known to not be writable, so we don't need to * worry about dirty bits etc getting lost. */ -#ifndef __HAVE_ARCH_SET_PTE_ATOMIC #define ptep_establish(__vma, __address, __ptep, __entry) \ do { \ set_pte_at((__vma)->vm_mm, (__address), __ptep, __entry); \ flush_tlb_page(__vma, __address); \ } while (0) -#else /* __HAVE_ARCH_SET_PTE_ATOMIC */ -#define ptep_establish(__vma, __address, __ptep, __entry) \ -do { \ - set_pte_atomic(__ptep, __entry); \ - flush_tlb_page(__vma, __address); \ -} while (0) -#endif /* __HAVE_ARCH_SET_PTE_ATOMIC */ #endif #ifndef __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS diff --git a/include/asm-i386/pgtable-3level.h b/include/asm-i386/pgtable-3level.h index 7c58debdb39e..c2d701ea35be 100644 --- a/include/asm-i386/pgtable-3level.h +++ b/include/asm-i386/pgtable-3level.h @@ -73,7 +73,6 @@ static inline void set_pte_present(struct mm_struct *mm, unsigned long addr, pte ptep->pte_low = pte.pte_low; } -#define __HAVE_ARCH_SET_PTE_ATOMIC #define set_pte_atomic(pteptr,pteval) \ set_64bit((unsigned long long *)(pteptr),pte_val(pteval)) #define set_pmd(pmdptr,pmdval) \ diff --git a/include/asm-m32r/pgtable-2level.h b/include/asm-m32r/pgtable-2level.h index 6a674e3d37a2..84152760e0b5 100644 --- a/include/asm-m32r/pgtable-2level.h +++ b/include/asm-m32r/pgtable-2level.h @@ -44,7 +44,7 @@ static inline int pgd_present(pgd_t pgd) { return 1; } */ #define set_pte(pteptr, pteval) (*(pteptr) = pteval) #define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) -#define set_pte_atomic(pteptr, pteval) set_pte(pteptr, pteval) + /* * (pmds are folded into pgds so this doesnt get actually called, * but the define is needed for a generic inline function.) |