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| author | Ingo Molnar <mingo@kernel.org> | 2016-03-08 11:26:07 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-03-08 11:26:07 (GMT) |
| commit | fe36d8912c8e402c62ce5a8712b6a47baae1ceaa (patch) | |
| tree | f8394fd1dbb10b2d075e74d0f6b09ec29c795fe6 /mm/mprotect.c | |
| parent | 16a8083cedbe628228dbb08fc1469c70e6208619 (diff) | |
| parent | e2857b8f11a289ed2b61d18d0665e05c1053c446 (diff) | |
| download | linux-fe36d8912c8e402c62ce5a8712b6a47baae1ceaa.tar.xz | |
Merge branch 'linus' into irq/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/mprotect.c')
| -rw-r--r-- | mm/mprotect.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/mm/mprotect.c b/mm/mprotect.c index 8eb7bb4..f7cb3d4 100644 --- a/mm/mprotect.c +++ b/mm/mprotect.c @@ -160,9 +160,11 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma, } if (pmd_trans_huge(*pmd) || pmd_devmap(*pmd)) { - if (next - addr != HPAGE_PMD_SIZE) + if (next - addr != HPAGE_PMD_SIZE) { split_huge_pmd(vma, pmd, addr); - else { + if (pmd_none(*pmd)) + continue; + } else { int nr_ptes = change_huge_pmd(vma, pmd, addr, newprot, prot_numa); |