KVM: x86: Optimize kvm->lock and SRCU interaction (KVM_X86_SET_MSR_FILTER)

Reduce time spent holding kvm->lock: unlock mutex before calling
synchronize_srcu().  There is no need to hold kvm->lock until all vCPUs
have been kicked, KVM only needs to guarantee that all vCPUs will switch
to the new filter before exiting to userspace.

Suggested-by: Paolo Bonzini <[email protected]>
Suggested-by: Sean Christopherson <[email protected]>
Signed-off-by: Michal Luczaj <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
[sean: expand changelog]
Signed-off-by: Sean Christopherson <[email protected]>

0 files changed, 0 insertions, 0 deletions