Messages in this thread Patch in this message | | | Date | Wed, 16 Dec 2009 12:04:23 +0900 | From | KAMEZAWA Hiroyuki <> | Subject | [mm][RFC][PATCH 4/11] mm accessor for kvm |
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Use mm_accessor in /kvm layer.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> --- security/tomoyo/common.c | 4 ++-- virt/kvm/kvm_main.c | 6 +++--- 2 files changed, 5 insertions(+), 5 deletions(-)
Index: mmotm-mm-accessor/virt/kvm/kvm_main.c =================================================================== --- mmotm-mm-accessor.orig/virt/kvm/kvm_main.c +++ mmotm-mm-accessor/virt/kvm/kvm_main.c @@ -843,18 +843,18 @@ pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t if (unlikely(npages != 1)) { struct vm_area_struct *vma; - down_read(¤t->mm->mmap_sem); + mm_read_lock(current->mm); vma = find_vma(current->mm, addr); if (vma == NULL || addr < vma->vm_start || !(vma->vm_flags & VM_PFNMAP)) { - up_read(¤t->mm->mmap_sem); + mm_read_unlock(current->mm); get_page(bad_page); return page_to_pfn(bad_page); } pfn = ((addr - vma->vm_start) >> PAGE_SHIFT) + vma->vm_pgoff; - up_read(¤t->mm->mmap_sem); + mm_read_unlock(current->mm); BUG_ON(!kvm_is_mmio_pfn(pfn)); } else pfn = page_to_pfn(page[0]);
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