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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2015-09-09 15:39:35 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-10 13:29:01 -0700
commitfb6dd5fa4165c4b82f1a11416c2fc192ae3a84e2 (patch)
tree0dae4e152583f047de37f625e6e1af9d51a40841
parent6dc296e7df4c9a0857491cc3f55da16a9eeeeae7 (diff)
downloadlinux-fb6dd5fa4165c4b82f1a11416c2fc192ae3a84e2.tar.gz
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>
-rw-r--r--mm/memory.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/memory.c b/mm/memory.c
index 6cd0b2160401..9cb27470fee9 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3233,7 +3233,7 @@ out:
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);