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x86/pgtable.h: demacro ptep_set_access_flags

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Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Jeremy Fitzhardinge
2008-03-17 16:37:03 -07:00
committed by Ingo Molnar
parent 2761fa0920
commit ee5aa8d3ba
2 changed files with 19 additions and 10 deletions
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16
arch/x86/mm/pgtable.c
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@@ -1,5 +1,6 @@
#include <linux/mm.h>
#include <asm/pgalloc.h>
#include <asm/pgtable.h>
#include <asm/tlb.h>
pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
@@ -264,3 +265,18 @@ void pgd_free(struct mm_struct *mm, pgd_t *pgd)
free_page((unsigned long)pgd);
}
#endif
int ptep_set_access_flags(struct vm_area_struct *vma,
unsigned long address, pte_t *ptep,
pte_t entry, int dirty)
{
int changed = !pte_same(*ptep, entry);
if (changed && dirty) {
*ptep = entry;
pte_update_defer(vma->vm_mm, address, ptep);
flush_tlb_page(vma, address);
}
return changed;
}