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| author | Dave Airlie <airlied@redhat.com> | 2016-03-14 09:42:34 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2016-03-14 09:46:02 +1000 |
| commit | 9b61c0fcdf0cfd20a85d9856d46142e7f297de0a (patch) | |
| tree | d4abe6aa3f4e1e088f9da1d0597e078b1fe58912 /arch/x86/mm/fault.c | |
| parent | 550e3b23a53c88adfa46e64f9d442743e65d47da (diff) | |
| parent | 125234dc8b1cc862f52d8bd5b37c36cc59b2cb86 (diff) | |
| download | linux-9b61c0fcdf0cfd20a85d9856d46142e7f297de0a.tar.bz2 | |
Merge drm-fixes into drm-next.
Nouveau wanted this to avoid some worse conflicts when I merge that.
Diffstat (limited to 'arch/x86/mm/fault.c')
| -rw-r--r-- | arch/x86/mm/fault.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index eef44d9a3f77..e830c71a1323 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -287,6 +287,9 @@ static noinline int vmalloc_fault(unsigned long address) if (!pmd_k) return -1; + if (pmd_huge(*pmd_k)) + return 0; + pte_k = pte_offset_kernel(pmd_k, address); if (!pte_present(*pte_k)) return -1; @@ -360,8 +363,6 @@ void vmalloc_sync_all(void) * 64-bit: * * Handle a fault on the vmalloc area - * - * This assumes no large pages in there. */ static noinline int vmalloc_fault(unsigned long address) { @@ -403,17 +404,23 @@ static noinline int vmalloc_fault(unsigned long address) if (pud_none(*pud_ref)) return -1; - if (pud_none(*pud) || pud_page_vaddr(*pud) != pud_page_vaddr(*pud_ref)) + if (pud_none(*pud) || pud_pfn(*pud) != pud_pfn(*pud_ref)) BUG(); + if (pud_huge(*pud)) + return 0; + pmd = pmd_offset(pud, address); pmd_ref = pmd_offset(pud_ref, address); if (pmd_none(*pmd_ref)) return -1; - if (pmd_none(*pmd) || pmd_page(*pmd) != pmd_page(*pmd_ref)) + if (pmd_none(*pmd) || pmd_pfn(*pmd) != pmd_pfn(*pmd_ref)) BUG(); + if (pmd_huge(*pmd)) + return 0; + pte_ref = pte_offset_kernel(pmd_ref, address); if (!pte_present(*pte_ref)) return -1; |