diff options
| author | Waiman Long <longman@redhat.com> | 2017-02-20 13:36:03 -0500 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2017-02-21 12:48:06 +0100 |
| commit | 6c62985d576c8a816f528c39204207b9f449d923 (patch) | |
| tree | ceeab09d6f75bcf723959a767d0456aff6ef78fa /arch/x86/kernel/paravirt-spinlocks.c | |
| parent | 96794e4ed4d758272c486e1529e431efb7045265 (diff) | |
x86/paravirt: Change vcp_is_preempted() arg type to long
The cpu argument in the function prototype of vcpu_is_preempted()
is changed from int to long. That makes it easier to provide a better
optimized assembly version of that function.
For Xen, vcpu_is_preempted(long) calls xen_vcpu_stolen(int), the
downcast from long to int is not a problem as vCPU number won't exceed
32 bits.
Signed-off-by: Waiman Long <longman@redhat.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kernel/paravirt-spinlocks.c')
| -rw-r--r-- | arch/x86/kernel/paravirt-spinlocks.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/paravirt-spinlocks.c b/arch/x86/kernel/paravirt-spinlocks.c index 6d4bf812af45..8caa8a18472b 100644 --- a/arch/x86/kernel/paravirt-spinlocks.c +++ b/arch/x86/kernel/paravirt-spinlocks.c @@ -20,7 +20,7 @@ bool pv_is_native_spin_unlock(void) __raw_callee_save___native_queued_spin_unlock; } -__visible bool __native_vcpu_is_preempted(int cpu) +__visible bool __native_vcpu_is_preempted(long cpu) { return false; } |