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authorAndi Kleen <ak@suse.de>2008-01-30 13:33:42 +0100
committerIngo Molnar <mingo@elte.hu>2008-01-30 13:33:42 +0100
commit4c3c4b4513a361cc6ac5ee8677695260c4f0f25f (patch)
tree3a56ada5131a85fff2bb37841d822d098b92f68c /include/asm-x86
parente66a95127dc4273d3573eb03657991f7bbd5dca3 (diff)
downloadop-kernel-dev-4c3c4b4513a361cc6ac5ee8677695260c4f0f25f.zip
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x86: clean up pte_exec
- Rename it to pte_exec() from pte_exec_kernel(). There is nothing kernel specific in there. - Move it into the common file because _PAGE_NX is 0 on !PAE and then pte_exec() will be always evaluate to true. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/asm-x86')
-rw-r--r--include/asm-x86/pgtable-2level.h8
-rw-r--r--include/asm-x86/pgtable-3level.h8
-rw-r--r--include/asm-x86/pgtable.h1
3 files changed, 1 insertions, 16 deletions
diff --git a/include/asm-x86/pgtable-2level.h b/include/asm-x86/pgtable-2level.h
index ce486bd..701404f 100644
--- a/include/asm-x86/pgtable-2level.h
+++ b/include/asm-x86/pgtable-2level.h
@@ -56,14 +56,6 @@ static inline pte_t native_ptep_get_and_clear(pte_t *xp)
#define pte_pfn(x) (pte_val(x) >> PAGE_SHIFT)
/*
- * All present pages are kernel-executable:
- */
-static inline int pte_exec_kernel(pte_t pte)
-{
- return 1;
-}
-
-/*
* Bits 0, 6 and 7 are taken, split up the 29 bits of offset
* into this range:
*/
diff --git a/include/asm-x86/pgtable-3level.h b/include/asm-x86/pgtable-3level.h
index 62bb065..62a1ffb 100644
--- a/include/asm-x86/pgtable-3level.h
+++ b/include/asm-x86/pgtable-3level.h
@@ -19,14 +19,6 @@
#define pud_bad(pud) 0
#define pud_present(pud) 1
-/*
- * All present pages with !NX bit are kernel-executable:
- */
-static inline int pte_exec_kernel(pte_t pte)
-{
- return !(pte_val(pte) & _PAGE_NX);
-}
-
/* Rules for using set_pte: the pte being assigned *must* be
* either not present or in a state where the hardware will
* not attempt to update the pte. In places where this is
diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h
index 75a656e..2f3d908 100644
--- a/include/asm-x86/pgtable.h
+++ b/include/asm-x86/pgtable.h
@@ -139,6 +139,7 @@ static inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED;
static inline int pte_write(pte_t pte) { return pte_val(pte) & _PAGE_RW; }
static inline int pte_file(pte_t pte) { return pte_val(pte) & _PAGE_FILE; }
static inline int pte_huge(pte_t pte) { return pte_val(pte) & _PAGE_PSE; }
+static inline int pte_exec(pte_t pte) { return !(pte_val(pte) & _PAGE_NX); }
static inline int pmd_large(pmd_t pte) {
return (pmd_val(pte) & (_PAGE_PSE|_PAGE_PRESENT)) ==
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