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authorZachary Amsden <zach@vmware.com>2006-09-30 23:29:37 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-01 00:39:34 -0700
commita93cb055a23f3172c1e6a22ac1dc4f1c07929b08 (patch)
treeb2118140583912c78d42a3ba950be39815addc14
parentd6d861e3c963b4077c83e078e3e300c4b81f93e7 (diff)
[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.h2
-rw-r--r--include/asm-generic/pgtable.h8
-rw-r--r--include/asm-i386/pgtable-3level.h1
-rw-r--r--include/asm-m32r/pgtable-2level.h2
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.)

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