diff options
| author | Christian Borntraeger <borntraeger@de.ibm.com> | 2016-02-09 13:47:55 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2016-02-16 18:48:29 +0100 |
| commit | 6b6de68c63eda6240ec92e44b998f910156f8806 (patch) | |
| tree | bbac3e4b7e1ce1c9fdfef89b3fea0a04ad85e88e /include/trace | |
| parent | efef127c30c5ded4cb10fe36275d9b11d4633de4 (diff) | |
KVM: halt_polling: improve grow/shrink settings
Right now halt_poll_ns can be change during runtime. The
grow and shrink factors can only be set during module load.
Lets fix several aspects of grow shrink:
- make grow/shrink changeable by root
- make all variables unsigned int
- read the variables once to prevent races
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/kvm.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/include/trace/events/kvm.h b/include/trace/events/kvm.h index d6f83222a6a1..aa69253ecc7d 100644 --- a/include/trace/events/kvm.h +++ b/include/trace/events/kvm.h @@ -359,14 +359,15 @@ TRACE_EVENT( #endif TRACE_EVENT(kvm_halt_poll_ns, - TP_PROTO(bool grow, unsigned int vcpu_id, int new, int old), + TP_PROTO(bool grow, unsigned int vcpu_id, unsigned int new, + unsigned int old), TP_ARGS(grow, vcpu_id, new, old), TP_STRUCT__entry( __field(bool, grow) __field(unsigned int, vcpu_id) - __field(int, new) - __field(int, old) + __field(unsigned int, new) + __field(unsigned int, old) ), TP_fast_assign( @@ -376,7 +377,7 @@ TRACE_EVENT(kvm_halt_poll_ns, __entry->old = old; ), - TP_printk("vcpu %u: halt_poll_ns %d (%s %d)", + TP_printk("vcpu %u: halt_poll_ns %u (%s %u)", __entry->vcpu_id, __entry->new, __entry->grow ? "grow" : "shrink", |