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| author |   Takuya Yoshikawa <yoshikawa_takuya_b1@lab.ntt.co.jp> | 2013-01-08 19:46:48 +0900 |
|---|---|---|
| committer |   Gleb Natapov <gleb@redhat.com> | 2013-01-14 11:14:17 +0200 |
| commit | 9d1beefb71146bbf5f820ab17c450808b0d0b2df (patch) | |
| tree | d4563459cf9c07b520da4eddc374104c23466db2 /arch/x86/kvm | |
| parent | KVM: Make kvm_mmu_change_mmu_pages() take mmu_lock by itself (diff) | |
| download | linux-dev-9d1beefb71146bbf5f820ab17c450808b0d0b2df.tar.xz linux-dev-9d1beefb71146bbf5f820ab17c450808b0d0b2df.zip | |
KVM: Make kvm_mmu_slot_remove_write_access() take mmu_lock by itself
Better to place mmu_lock handling and TLB flushing code together since
this is a self-contained function.
Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Takuya Yoshikawa <yoshikawa_takuya_b1@lab.ntt.co.jp>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
| -rw-r--r-- | arch/x86/kvm/mmu.c | 3 | ||||
| -rw-r--r-- | arch/x86/kvm/x86.c | 5 |
2 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index f5572804f594..e5dcae31cebc 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -4173,6 +4173,8 @@ void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot) memslot = id_to_memslot(kvm->memslots, slot); last_gfn = memslot->base_gfn + memslot->npages - 1; + spin_lock(&kvm->mmu_lock); + for (i = PT_PAGE_TABLE_LEVEL; i < PT_PAGE_TABLE_LEVEL + KVM_NR_PAGE_SIZES; ++i) { unsigned long *rmapp; @@ -4188,6 +4190,7 @@ void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot) } kvm_flush_remote_tlbs(kvm); + spin_unlock(&kvm->mmu_lock); } void kvm_mmu_zap_all(struct kvm *kvm) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 080bbdcbf2ee..54832280cdef 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -6899,11 +6899,8 @@ void kvm_arch_commit_memory_region(struct kvm *kvm, * Existing largepage mappings are destroyed here and new ones will * not be created until the end of the logging. */ - if (npages && (mem->flags & KVM_MEM_LOG_DIRTY_PAGES)) { - spin_lock(&kvm->mmu_lock); + if (npages && (mem->flags & KVM_MEM_LOG_DIRTY_PAGES)) kvm_mmu_slot_remove_write_access(kvm, mem->slot); - spin_unlock(&kvm->mmu_lock); - } /* * If memory slot is created, or moved, we need to clear all * mmio sptes. |