[PATCH v1 2/5] KVM: s390: remove unneeded srcu lock

[Claudio Imbrenda <imbrenda@linux.ibm.com>]

All paths leading to handle_essa() already hold the kvm->srcu.
Remove unneeded srcu locking from handle_essa().

Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
---
 arch/s390/kvm/priv.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index 1a49b89706f8..758cefb5bac7 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -1297,12 +1297,8 @@ static int handle_essa(struct kvm_vcpu *vcpu)
 		/* Retry the ESSA instruction */
 		kvm_s390_retry_instr(vcpu);
 	} else {
-		int srcu_idx;
-
 		mmap_read_lock(vcpu->kvm->mm);
-		srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
 		i = __do_essa(vcpu, orc);
-		srcu_read_unlock(&vcpu->kvm->srcu, srcu_idx);
 		mmap_read_unlock(vcpu->kvm->mm);
 		if (i < 0)
 			return i;
-- 
2.49.0