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authorDavid Hildenbrand <dahi@linux.vnet.ibm.com>2014-07-11 10:00:43 +0200
committerChristian Borntraeger <borntraeger@de.ibm.com>2014-10-01 14:42:14 +0200
commitce2e4f0b75a567d25375b52476662c724304e476 (patch)
treea7e08d055f37627bf801b3cb1f510099fda54f7b /arch/s390/kvm
parent7be81a46695d2088f848653f2bbec06bb178adce (diff)
KVM: s390: count vcpu wakeups in stat.halt_wakeup
This patch introduces the halt_wakeup counter used by common code and uses it to count vcpu wakeups done in s390 arch specific code. Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm')
-rw-r--r--arch/s390/kvm/interrupt.c1
-rw-r--r--arch/s390/kvm/kvm-s390.c1
2 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 4cad00adef9..a39838457f0 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -626,6 +626,7 @@ void kvm_s390_vcpu_wakeup(struct kvm_vcpu *vcpu)
*/
vcpu->preempted = true;
wake_up_interruptible(&vcpu->wq);
+ vcpu->stat.halt_wakeup++;
}
}
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 0d5aa88e238..55aade49b6d 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -50,6 +50,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
{ "exit_instruction", VCPU_STAT(exit_instruction) },
{ "exit_program_interruption", VCPU_STAT(exit_program_interruption) },
{ "exit_instr_and_program_int", VCPU_STAT(exit_instr_and_program) },
+ { "halt_wakeup", VCPU_STAT(halt_wakeup) },
{ "instruction_lctlg", VCPU_STAT(instruction_lctlg) },
{ "instruction_lctl", VCPU_STAT(instruction_lctl) },
{ "instruction_stctl", VCPU_STAT(instruction_stctl) },