diff options
| author | Ingo Molnar <mingo@kernel.org> | 2023-01-18 11:56:01 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2023-01-18 11:56:57 +0100 |
| commit | 65adf3a57c0c2e79c5c2b72a4bdcabcab9e99ec1 (patch) | |
| tree | ee08845127f4cd8d6fc816fbaf0e5f6f4330bc58 /arch/s390/kvm/interrupt.c | |
| parent | 9fcad995c6c52cc9791f7ee9f1386a5684055f9c (diff) | |
| parent | 5dc4c995db9eb45f6373a956eb1f69460e69e6d4 (diff) | |
| download | linux-65adf3a57c0c2e79c5c2b72a4bdcabcab9e99ec1.tar.gz linux-65adf3a57c0c2e79c5c2b72a4bdcabcab9e99ec1.tar.bz2 linux-65adf3a57c0c2e79c5c2b72a4bdcabcab9e99ec1.zip | |
Merge tag 'v6.2-rc4' into perf/core, to pick up fixes
Move from the -rc1 base to the fresher -rc4 kernel that
has various fixes included, before applying a larger
patchset.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/s390/kvm/interrupt.c')
| -rw-r--r-- | arch/s390/kvm/interrupt.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c index 1dae78deddf2..ab26aa53ee37 100644 --- a/arch/s390/kvm/interrupt.c +++ b/arch/s390/kvm/interrupt.c @@ -83,8 +83,9 @@ static int sca_inject_ext_call(struct kvm_vcpu *vcpu, int src_id) struct esca_block *sca = vcpu->kvm->arch.sca; union esca_sigp_ctrl *sigp_ctrl = &(sca->cpu[vcpu->vcpu_id].sigp_ctrl); - union esca_sigp_ctrl new_val = {0}, old_val = *sigp_ctrl; + union esca_sigp_ctrl new_val = {0}, old_val; + old_val = READ_ONCE(*sigp_ctrl); new_val.scn = src_id; new_val.c = 1; old_val.c = 0; @@ -95,8 +96,9 @@ static int sca_inject_ext_call(struct kvm_vcpu *vcpu, int src_id) struct bsca_block *sca = vcpu->kvm->arch.sca; union bsca_sigp_ctrl *sigp_ctrl = &(sca->cpu[vcpu->vcpu_id].sigp_ctrl); - union bsca_sigp_ctrl new_val = {0}, old_val = *sigp_ctrl; + union bsca_sigp_ctrl new_val = {0}, old_val; + old_val = READ_ONCE(*sigp_ctrl); new_val.scn = src_id; new_val.c = 1; old_val.c = 0; @@ -126,16 +128,18 @@ static void sca_clear_ext_call(struct kvm_vcpu *vcpu) struct esca_block *sca = vcpu->kvm->arch.sca; union esca_sigp_ctrl *sigp_ctrl = &(sca->cpu[vcpu->vcpu_id].sigp_ctrl); - union esca_sigp_ctrl old = *sigp_ctrl; + union esca_sigp_ctrl old; + old = READ_ONCE(*sigp_ctrl); expect = old.value; rc = cmpxchg(&sigp_ctrl->value, old.value, 0); } else { struct bsca_block *sca = vcpu->kvm->arch.sca; union bsca_sigp_ctrl *sigp_ctrl = &(sca->cpu[vcpu->vcpu_id].sigp_ctrl); - union bsca_sigp_ctrl old = *sigp_ctrl; + union bsca_sigp_ctrl old; + old = READ_ONCE(*sigp_ctrl); expect = old.value; rc = cmpxchg(&sigp_ctrl->value, old.value, 0); } |