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| author | Anton Arapov <anton@redhat.com> | 2012-09-12 09:18:33 +0200 |
|---|---|---|
| committer | Anton Arapov <anton@redhat.com> | 2012-09-12 09:19:26 +0200 |
| commit | 985ef6b2108ed28ffd5f6630e1e0fce2e2a775f2 (patch) | |
| tree | eb9091ebd60e14eea65a9e6b5140f98d88e8a590 /arch/arm/include | |
| parent | 1d44b6f3fcf6058fb7c960b7558766967e8028f7 (diff) | |
| download | kernel-uprobes-985ef6b2108ed28ffd5f6630e1e0fce2e2a775f2.tar.gz kernel-uprobes-985ef6b2108ed28ffd5f6630e1e0fce2e2a775f2.tar.xz kernel-uprobes-985ef6b2108ed28ffd5f6630e1e0fce2e2a775f2.zip | |
fedora kernel: 021ce7bee3cfdcbf16da1256b2c9f40f7e9bbd9ev3.5.3-1
Signed-off-by: Anton Arapov <anton@redhat.com>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/cacheflush.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h index 004c1bc95d2..e4448e16046 100644 --- a/arch/arm/include/asm/cacheflush.h +++ b/arch/arm/include/asm/cacheflush.h @@ -215,7 +215,9 @@ static inline void vivt_flush_cache_mm(struct mm_struct *mm) static inline void vivt_flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end) { - if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm))) + struct mm_struct *mm = vma->vm_mm; + + if (!mm || cpumask_test_cpu(smp_processor_id(), mm_cpumask(mm))) __cpuc_flush_user_range(start & PAGE_MASK, PAGE_ALIGN(end), vma->vm_flags); } @@ -223,7 +225,9 @@ vivt_flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned static inline void vivt_flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr, unsigned long pfn) { - if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm))) { + struct mm_struct *mm = vma->vm_mm; + + if (!mm || cpumask_test_cpu(smp_processor_id(), mm_cpumask(mm))) { unsigned long addr = user_addr & PAGE_MASK; __cpuc_flush_user_range(addr, addr + PAGE_SIZE, vma->vm_flags); } |