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| author | Vegard Nossum <vegard.nossum@gmail.com> | 2009-02-22 11:28:25 +0100 |
|---|---|---|
| committer | Vegard Nossum <vegard.nossum@gmail.com> | 2009-06-15 12:40:11 +0200 |
| commit | 9e730237c2cb479649207da1be2114c28d2fcf51 (patch) | |
| tree | b00509d1fe15110e3c34a7a5eff937280eff4456 /arch/x86/mm/pgtable.c | |
| parent | 33f65df7ed1abcaac32ba620b9976a4d8cea3248 (diff) | |
| download | lwn-9e730237c2cb479649207da1be2114c28d2fcf51.tar.gz lwn-9e730237c2cb479649207da1be2114c28d2fcf51.zip | |
kmemcheck: don't track page tables
As these are allocated using the page allocator, we need to pass
__GFP_NOTRACK before we add page allocator support to kmemcheck.
Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
Diffstat (limited to 'arch/x86/mm/pgtable.c')
| -rw-r--r-- | arch/x86/mm/pgtable.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c index 7aa03a5389f5..8e43bdd45456 100644 --- a/arch/x86/mm/pgtable.c +++ b/arch/x86/mm/pgtable.c @@ -4,9 +4,11 @@ #include <asm/tlb.h> #include <asm/fixmap.h> +#define PGALLOC_GFP GFP_KERNEL | __GFP_NOTRACK | __GFP_REPEAT | __GFP_ZERO + pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) { - return (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); + return (pte_t *)__get_free_page(PGALLOC_GFP); } pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address) @@ -14,9 +16,9 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address) struct page *pte; #ifdef CONFIG_HIGHPTE - pte = alloc_pages(GFP_KERNEL|__GFP_HIGHMEM|__GFP_REPEAT|__GFP_ZERO, 0); + pte = alloc_pages(PGALLOC_GFP | __GFP_HIGHMEM, 0); #else - pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0); + pte = alloc_pages(PGALLOC_GFP, 0); #endif if (pte) pgtable_page_ctor(pte); @@ -161,7 +163,7 @@ static int preallocate_pmds(pmd_t *pmds[]) bool failed = false; for(i = 0; i < PREALLOCATED_PMDS; i++) { - pmd_t *pmd = (pmd_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT); + pmd_t *pmd = (pmd_t *)__get_free_page(PGALLOC_GFP); if (pmd == NULL) failed = true; pmds[i] = pmd; @@ -228,7 +230,7 @@ pgd_t *pgd_alloc(struct mm_struct *mm) pmd_t *pmds[PREALLOCATED_PMDS]; unsigned long flags; - pgd = (pgd_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO); + pgd = (pgd_t *)__get_free_page(PGALLOC_GFP); if (pgd == NULL) goto out; |