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| author | Christian Borntraeger <borntraeger@de.ibm.com> | 2017-07-06 16:17:14 +0200 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2017-07-07 15:24:17 +0200 |
| commit | a80cf7b5f4149753d5f19c872a47e66195b167d4 (patch) | |
| tree | fae2662f53c9922277dfd6772a6018ac533e0a36 /virt | |
| parent | 4a12f95177280a660bda99e81838919b1cc6a91a (diff) | |
| download | linux-stable-a80cf7b5f4149753d5f19c872a47e66195b167d4.tar.gz linux-stable-a80cf7b5f4149753d5f19c872a47e66195b167d4.tar.bz2 linux-stable-a80cf7b5f4149753d5f19c872a47e66195b167d4.zip | |
KVM: mark memory slots as rcu
we access the memslots array via srcu. Mark it as such and
use the right access functions also for the freeing of
memory slots.
Found by sparse:
./include/linux/kvm_host.h:565:16: error: incompatible types in
comparison expression (different address spaces)
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'virt')
| -rw-r--r-- | virt/kvm/kvm_main.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index d76e822f8929..6e6d4edf0e92 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -707,7 +707,8 @@ out_err_no_disable: for (i = 0; i < KVM_NR_BUSES; i++) kfree(rcu_access_pointer(kvm->buses[i])); for (i = 0; i < KVM_ADDRESS_SPACE_NUM; i++) - kvm_free_memslots(kvm, kvm->memslots[i]); + kvm_free_memslots(kvm, + rcu_dereference_protected(kvm->memslots[i], 1)); kvm_arch_free_vm(kvm); mmdrop(current->mm); return ERR_PTR(r); @@ -756,7 +757,8 @@ static void kvm_destroy_vm(struct kvm *kvm) kvm_arch_destroy_vm(kvm); kvm_destroy_devices(kvm); for (i = 0; i < KVM_ADDRESS_SPACE_NUM; i++) - kvm_free_memslots(kvm, kvm->memslots[i]); + kvm_free_memslots(kvm, + rcu_dereference_protected(kvm->memslots[i], 1)); cleanup_srcu_struct(&kvm->irq_srcu); cleanup_srcu_struct(&kvm->srcu); kvm_arch_free_vm(kvm); |