diff options
| author | Andi Kleen <ak@suse.de> | 2008-01-30 13:33:42 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:33:42 +0100 |
| commit | 4c3c4b4513a361cc6ac5ee8677695260c4f0f25f (patch) | |
| tree | 3a56ada5131a85fff2bb37841d822d098b92f68c /include/asm-x86 | |
| parent | e66a95127dc4273d3573eb03657991f7bbd5dca3 (diff) | |
| download | blackbird-op-linux-4c3c4b4513a361cc6ac5ee8677695260c4f0f25f.tar.gz blackbird-op-linux-4c3c4b4513a361cc6ac5ee8677695260c4f0f25f.zip | |
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.h | 8 | ||||
| -rw-r--r-- | include/asm-x86/pgtable-3level.h | 8 | ||||
| -rw-r--r-- | include/asm-x86/pgtable.h | 1 |
3 files changed, 1 insertions, 16 deletions
diff --git a/include/asm-x86/pgtable-2level.h b/include/asm-x86/pgtable-2level.h index ce486bdbbbb7..701404fab308 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 62bb06575d5a..62a1ffbc8784 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 75a656e6b3f8..2f3d90807efb 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)) == |
