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authorSteven Whitehouse <swhiteho@redhat.com>2006-05-12 10:48:52 -0400
committerSteven Whitehouse <swhiteho@redhat.com>2006-05-12 10:48:52 -0400
commit7d63b54a65ce902f9aaa8efe8192aa3b983264d4 (patch)
tree250a77bebe92cbd6edac70a649866044295876db /include/asm-i386/pgtable.h
parentfd88de569b802c4a04aaa6ee74667775f4aed8c6 (diff)
parentd8c3291c73b958243b33f8509d4507e76dafd055 (diff)
Merge branch 'master'
Diffstat (limited to 'include/asm-i386/pgtable.h')
-rw-r--r--include/asm-i386/pgtable.h4
1 files changed, 1 insertions, 3 deletions
diff --git a/include/asm-i386/pgtable.h b/include/asm-i386/pgtable.h
index ee056c41a9fb..672c3f76b9df 100644
--- a/include/asm-i386/pgtable.h
+++ b/include/asm-i386/pgtable.h
@@ -204,12 +204,10 @@ extern unsigned long long __PAGE_KERNEL, __PAGE_KERNEL_EXEC;
204extern unsigned long pg0[]; 204extern unsigned long pg0[];
205 205
206#define pte_present(x) ((x).pte_low & (_PAGE_PRESENT | _PAGE_PROTNONE)) 206#define pte_present(x) ((x).pte_low & (_PAGE_PRESENT | _PAGE_PROTNONE))
207#define pte_clear(mm,addr,xp) do { set_pte_at(mm, addr, xp, __pte(0)); } while (0)
208 207
209/* To avoid harmful races, pmd_none(x) should check only the lower when PAE */ 208/* To avoid harmful races, pmd_none(x) should check only the lower when PAE */
210#define pmd_none(x) (!(unsigned long)pmd_val(x)) 209#define pmd_none(x) (!(unsigned long)pmd_val(x))
211#define pmd_present(x) (pmd_val(x) & _PAGE_PRESENT) 210#define pmd_present(x) (pmd_val(x) & _PAGE_PRESENT)
212#define pmd_clear(xp) do { set_pmd(xp, __pmd(0)); } while (0)
213#define pmd_bad(x) ((pmd_val(x) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE) 211#define pmd_bad(x) ((pmd_val(x) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE)
214 212
215 213
@@ -268,7 +266,7 @@ static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm, unsigned long
268 pte_t pte; 266 pte_t pte;
269 if (full) { 267 if (full) {
270 pte = *ptep; 268 pte = *ptep;
271 *ptep = __pte(0); 269 pte_clear(mm, addr, ptep);
272 } else { 270 } else {
273 pte = ptep_get_and_clear(mm, addr, ptep); 271 pte = ptep_get_and_clear(mm, addr, ptep);
274 } 272 }