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authorJason J. Herne <jjherne@linux.vnet.ibm.com>2015-09-16 09:13:50 -0400
committerPaolo Bonzini <pbonzini@redhat.com>2015-09-16 17:01:06 +0200
commit9bf9fde2c98ba8362ea1d41d8bd8b32a23776e67 (patch)
tree75a1fbdcbb01d3ccea73298524522c39af384cf2 /arch/s390
parent04bb92e4b4cf06a66889d37b892b78f926faa9d4 (diff)
downloadlinux-9bf9fde2c98ba8362ea1d41d8bd8b32a23776e67.tar.gz
KVM: s390: Replace incorrect atomic_or with atomic_andnot
The offending commit accidentally replaces an atomic_clear with an atomic_or instead of an atomic_andnot in kvm_s390_vcpu_request_handled. The symptom is that kvm guests on s390 hang on startup. This patch simply replaces the incorrect atomic_or with atomic_andnot Fixes: 805de8f43c20 (atomic: Replace atomic_{set,clear}_mask() usage) Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/kvm/kvm-s390.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 2f807ab1725e..0a67c40eece9 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -1575,7 +1575,7 @@ static void kvm_s390_vcpu_request(struct kvm_vcpu *vcpu)
static void kvm_s390_vcpu_request_handled(struct kvm_vcpu *vcpu)
{
- atomic_or(PROG_REQUEST, &vcpu->arch.sie_block->prog20);
+ atomic_andnot(PROG_REQUEST, &vcpu->arch.sie_block->prog20);
}
/*