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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2015-06-25 02:57:42 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-06-25 03:49:44 +0300 |
| commit | f28b6ff8c3d48af21354ef30164c8ccea69d5928 (patch) | |
| tree | bee43a7022f356ec768a01b206dcd079536abad5 /mm/pgtable-generic.c | |
| parent | 15a25b2ead5f97c5a63c169186e294b41ce03f9a (diff) | |
| download | linux-f28b6ff8c3d48af21354ef30164c8ccea69d5928.tar.xz | |
powerpc/mm: use generic version of pmdp_clear_flush()
Also move the pmd_trans_huge check to generic code.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/pgtable-generic.c')
| -rw-r--r-- | mm/pgtable-generic.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/mm/pgtable-generic.c b/mm/pgtable-generic.c index c25f94b33811..f21dc5fbc6cd 100644 --- a/mm/pgtable-generic.c +++ b/mm/pgtable-generic.c @@ -126,6 +126,7 @@ pmd_t pmdp_clear_flush(struct vm_area_struct *vma, unsigned long address, { pmd_t pmd; VM_BUG_ON(address & ~HPAGE_PMD_MASK); + VM_BUG_ON(!pmd_trans_huge(*pmdp)); pmd = pmdp_get_and_clear(vma->vm_mm, address, pmdp); flush_tlb_range(vma, address, address + HPAGE_PMD_SIZE); return pmd; @@ -198,3 +199,19 @@ void pmdp_invalidate(struct vm_area_struct *vma, unsigned long address, } #endif /* CONFIG_TRANSPARENT_HUGEPAGE */ #endif + +#ifndef pmdp_collapse_flush +#ifdef CONFIG_TRANSPARENT_HUGEPAGE +pmd_t pmdp_collapse_flush(struct vm_area_struct *vma, unsigned long address, + pmd_t *pmdp) +{ + pmd_t pmd; + + VM_BUG_ON(address & ~HPAGE_PMD_MASK); + VM_BUG_ON(pmd_trans_huge(*pmdp)); + pmd = pmdp_get_and_clear(vma->vm_mm, address, pmdp); + flush_tlb_range(vma, address, address + HPAGE_PMD_SIZE); + return pmd; +} +#endif /* CONFIG_TRANSPARENT_HUGEPAGE */ +#endif |