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| author | Paul Mundt <lethal@linux-sh.org> | 2009-06-11 10:01:14 +0400 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2009-06-11 10:01:14 +0400 |
| commit | cf9fe114e3b37e14fc8434d5abb192e35df551b1 (patch) | |
| tree | 0f82879295dc792f9df1a3ce79e143a3c073510f /arch/x86/mm/hugetlbpage.c | |
| parent | c1d0d32a603ed06377f404adf2c538de33bb3634 (diff) | |
| parent | 991ec02cdca33b03a132a0cacfe6f0aa0be9aa8d (diff) | |
| download | linux-cf9fe114e3b37e14fc8434d5abb192e35df551b1.tar.xz | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
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 8f307d914c2e..f46c340727b8 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; |