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| author | David Hildenbrand <dahi@linux.vnet.ibm.com> | 2014-05-16 10:23:53 +0200 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2014-07-21 13:22:28 +0200 |
| commit | 4ae3c0815fb63cbed1afcd5bacc7705c6d1b9fec (patch) | |
| tree | 25212ba944cfbf2c012f5da378cfe67410846f67 /arch/s390/kvm/sigp.c | |
| parent | 0759d0681cae279e77ebb4b76175e330360b01d9 (diff) | |
| download | linux-4ae3c0815fb63cbed1afcd5bacc7705c6d1b9fec.tar.gz linux-4ae3c0815fb63cbed1afcd5bacc7705c6d1b9fec.tar.bz2 linux-4ae3c0815fb63cbed1afcd5bacc7705c6d1b9fec.zip | |
KVM: s390: remove _bh locking from local_int.lock
local_int.lock is not used in a bottom-half handler anymore, therefore we can
turn it into an ordinary spin_lock at all occurrences.
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm/sigp.c')
| -rw-r--r-- | arch/s390/kvm/sigp.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c index fd7fb5c5ef5d..946992f7bb25 100644 --- a/arch/s390/kvm/sigp.c +++ b/arch/s390/kvm/sigp.c @@ -135,7 +135,7 @@ static int __inject_sigp_stop(struct kvm_s390_local_interrupt *li, int action) return -ENOMEM; inti->type = KVM_S390_SIGP_STOP; - spin_lock_bh(&li->lock); + spin_lock(&li->lock); if (li->action_bits & ACTION_STOP_ON_STOP) { /* another SIGP STOP is pending */ rc = SIGP_CC_BUSY; @@ -154,7 +154,7 @@ static int __inject_sigp_stop(struct kvm_s390_local_interrupt *li, int action) if (waitqueue_active(li->wq)) wake_up_interruptible(li->wq); out: - spin_unlock_bh(&li->lock); + spin_unlock(&li->lock); return rc; } @@ -243,7 +243,7 @@ static int __sigp_set_prefix(struct kvm_vcpu *vcpu, u16 cpu_addr, u32 address, if (!inti) return SIGP_CC_BUSY; - spin_lock_bh(&li->lock); + spin_lock(&li->lock); /* cpu must be in stopped state */ if (!(atomic_read(li->cpuflags) & CPUSTAT_STOPPED)) { *reg &= 0xffffffff00000000UL; @@ -264,7 +264,7 @@ static int __sigp_set_prefix(struct kvm_vcpu *vcpu, u16 cpu_addr, u32 address, VCPU_EVENT(vcpu, 4, "set prefix of cpu %02x to %x", cpu_addr, address); out_li: - spin_unlock_bh(&li->lock); + spin_unlock(&li->lock); return rc; } @@ -280,9 +280,9 @@ static int __sigp_store_status_at_addr(struct kvm_vcpu *vcpu, u16 cpu_id, if (!dst_vcpu) return SIGP_CC_NOT_OPERATIONAL; - spin_lock_bh(&dst_vcpu->arch.local_int.lock); + spin_lock(&dst_vcpu->arch.local_int.lock); flags = atomic_read(dst_vcpu->arch.local_int.cpuflags); - spin_unlock_bh(&dst_vcpu->arch.local_int.lock); + spin_unlock(&dst_vcpu->arch.local_int.lock); if (!(flags & CPUSTAT_STOPPED)) { *reg &= 0xffffffff00000000UL; *reg |= SIGP_STATUS_INCORRECT_STATE; @@ -343,10 +343,10 @@ static int sigp_check_callable(struct kvm_vcpu *vcpu, u16 cpu_addr) if (!dst_vcpu) return SIGP_CC_NOT_OPERATIONAL; li = &dst_vcpu->arch.local_int; - spin_lock_bh(&li->lock); + spin_lock(&li->lock); if (li->action_bits & ACTION_STOP_ON_STOP) rc = SIGP_CC_BUSY; - spin_unlock_bh(&li->lock); + spin_unlock(&li->lock); return rc; } @@ -466,11 +466,11 @@ int kvm_s390_handle_sigp_pei(struct kvm_vcpu *vcpu) dest_vcpu = kvm_get_vcpu(vcpu->kvm, cpu_addr); BUG_ON(dest_vcpu == NULL); - spin_lock_bh(&dest_vcpu->arch.local_int.lock); + spin_lock(&dest_vcpu->arch.local_int.lock); if (waitqueue_active(&dest_vcpu->wq)) wake_up_interruptible(&dest_vcpu->wq); dest_vcpu->preempted = true; - spin_unlock_bh(&dest_vcpu->arch.local_int.lock); + spin_unlock(&dest_vcpu->arch.local_int.lock); kvm_s390_set_psw_cc(vcpu, SIGP_CC_ORDER_CODE_ACCEPTED); return 0; |