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| -rw-r--r-- | Documentation/virt/kvm/locking.rst | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/virt/kvm/locking.rst b/Documentation/virt/kvm/locking.rst index c0cb5ce51c1e..198a5a8f26c2 100644 --- a/Documentation/virt/kvm/locking.rst +++ b/Documentation/virt/kvm/locking.rst @@ -25,6 +25,7 @@ The acquisition orders for mutexes are as follows: must not take either kvm->slots_lock or kvm->slots_arch_lock. cpus_read_lock() vs kvm_lock: + - Taking cpus_read_lock() outside of kvm_lock is problematic, despite that being the official ordering, as it is quite easy to unknowingly trigger cpus_read_lock() while holding kvm_lock. Use caution when walking vm_list, |