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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 /mm/pgtable-generic.c | |
| parent | Merge branch 'drm-next-4.6' of git://people.freedesktop.org/~agd5f/linux into... (diff) | |
| parent | Merge tag 'drm-intel-fixes-2016-03-11' of git://anongit.freedesktop.org/drm-i... (diff) | |
| download | linux-9b61c0fcdf0cfd20a85d9856d46142e7f297de0a.tar.gz linux-9b61c0fcdf0cfd20a85d9856d46142e7f297de0a.zip | |
Merge drm-fixes into drm-next.
Nouveau wanted this to avoid some worse conflicts when I merge that.
Diffstat (limited to 'mm/pgtable-generic.c')
| -rw-r--r-- | mm/pgtable-generic.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/mm/pgtable-generic.c b/mm/pgtable-generic.c index 9d4767698a1c..06a005b979a7 100644 --- a/mm/pgtable-generic.c +++ b/mm/pgtable-generic.c @@ -90,9 +90,9 @@ pte_t ptep_clear_flush(struct vm_area_struct *vma, unsigned long address, * ARCHes with special requirements for evicting THP backing TLB entries can * implement this. Otherwise also, it can help optimize normal TLB flush in * THP regime. stock flush_tlb_range() typically has optimization to nuke the - * entire TLB TLB if flush span is greater than a threshhold, which will + * entire TLB if flush span is greater than a threshold, which will * likely be true for a single huge page. Thus a single thp flush will - * invalidate the entire TLB which is not desitable. + * invalidate the entire TLB which is not desirable. * e.g. see arch/arc: flush_pmd_tlb_range */ #define flush_pmd_tlb_range(vma, addr, end) flush_tlb_range(vma, addr, end) @@ -195,7 +195,9 @@ pmd_t pmdp_collapse_flush(struct vm_area_struct *vma, unsigned long address, VM_BUG_ON(address & ~HPAGE_PMD_MASK); VM_BUG_ON(pmd_trans_huge(*pmdp)); pmd = pmdp_huge_get_and_clear(vma->vm_mm, address, pmdp); - flush_pmd_tlb_range(vma, address, address + HPAGE_PMD_SIZE); + + /* collapse entails shooting down ptes not pmd */ + flush_tlb_range(vma, address, address + HPAGE_PMD_SIZE); return pmd; } #endif |