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| author | James Morris <jmorris@namei.org> | 2009-06-09 09:27:53 +1000 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2009-06-09 09:27:53 +1000 |
| commit | 0b4ec6e4e01d98e55ae325a41304cccd87fa4c0f (patch) | |
| tree | 1e075fdf4aaf0c5c003564b3f3414bb4a92ef2ed /arch/x86/mm/hugetlbpage.c | |
| parent | 04288f42033607099cebf5ca15ce8dcec3a9688b (diff) | |
| parent | 3af968e066d593bc4dacc021715f3e95ddf0996f (diff) | |
Merge branch 'master' into next
Diffstat (limited to 'arch/x86/mm/hugetlbpage.c')
| -rw-r--r-- | arch/x86/mm/hugetlbpage.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c index 8f307d914c2..f46c340727b 100644 --- a/arch/x86/mm/hugetlbpage.c +++ b/arch/x86/mm/hugetlbpage.c @@ -26,12 +26,16 @@ static unsigned long page_table_shareable(struct vm_area_struct *svma, unsigned long sbase = saddr & PUD_MASK; unsigned long s_end = sbase + PUD_SIZE; + /* Allow segments to share if only one is marked locked */ + unsigned long vm_flags = vma->vm_flags & ~VM_LOCKED; + unsigned long svm_flags = svma->vm_flags & ~VM_LOCKED; + /* * match the virtual addresses, permission and the alignment of the * page table page. */ if (pmd_index(addr) != pmd_index(saddr) || - vma->vm_flags != svma->vm_flags || + vm_flags != svm_flags || sbase < svma->vm_start || svma->vm_end < s_end) return 0; |