x86/paravirt: Change vcp_is_preempted() arg type to long
authorWaiman Long <longman@redhat.com>
Mon, 20 Feb 2017 18:36:03 +0000 (13:36 -0500)
committerPaolo Bonzini <pbonzini@redhat.com>
Tue, 21 Feb 2017 11:48:06 +0000 (12:48 +0100)
commit6c62985d576c8a816f528c39204207b9f449d923
treeceeab09d6f75bcf723959a767d0456aff6ef78fa
parent96794e4ed4d758272c486e1529e431efb7045265
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>
arch/x86/include/asm/paravirt.h
arch/x86/include/asm/qspinlock.h
arch/x86/kernel/kvm.c
arch/x86/kernel/paravirt-spinlocks.c