diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-06-07 11:34:59 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-06-07 11:35:05 +0200 |
| commit | 56fdd18c7b89a2fac1dfe5d54750c9143867fdc4 (patch) | |
| tree | ce48eee7d5960936fa6e385320b7a261a8bee071 /arch/x86/mm/hugetlbpage.c | |
| parent | 7caf6a49bb17d0377210693af5737563b31aa5ee (diff) | |
| parent | b87297fb405ef13cac375f202d114323b076a56d (diff) | |
Merge branch 'linus' into core/iommu
Merge reason: This branch was on an -rc5 base so pull almost-2.6.30
to resync with the latest upstream fixes and make sure
the combination works fine.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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; |