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mm: use vma_is_anonymous() in create_huge_pmd() and wp_huge_pmd() 

Let's use helper rather than direct check of vma->vm_ops to distinguish
anonymous VMA.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Kirill A. Shutemov 2015-09-09 15:39:35 -07:00 committed by Linus Torvalds
parent 6dc296e7df
commit fb6dd5fa41
1 changed files with 2 additions and 2 deletions
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4
mm/memory.c
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@ -3233,7 +3233,7 @@ static int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
static int create_huge_pmd(struct mm_struct *mm, struct vm_area_struct *vma,
unsigned long address, pmd_t *pmd, unsigned int flags)
{
if (!vma->vm_ops)
if (vma_is_anonymous(vma))
return do_huge_pmd_anonymous_page(mm, vma, address, pmd, flags);
if (vma->vm_ops->pmd_fault)
return vma->vm_ops->pmd_fault(vma, address, pmd, flags);
@ -3244,7 +3244,7 @@ static int wp_huge_pmd(struct mm_struct *mm, struct vm_area_struct *vma,
unsigned long address, pmd_t *pmd, pmd_t orig_pmd,
unsigned int flags)
{
if (!vma->vm_ops)
if (vma_is_anonymous(vma))
return do_huge_pmd_wp_page(mm, vma, address, pmd, orig_pmd);
if (vma->vm_ops->pmd_fault)
return vma->vm_ops->pmd_fault(vma, address, pmd, flags);