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xen: use this_cpu_xxx replace percpu_xxx funcs

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percpu_xxx funcs are duplicated with this_cpu_xxx funcs, so replace them
for further code clean up.

I don't know much of xen code. But, since the code is in x86 architecture,
the percpu_xxx is exactly same as this_cpu_xxx serials functions. So, the
change is safe.

Signed-off-by: Alex Shi <alex.shi@intel.com>
Acked-by: Christoph Lameter <cl@gentwo.org>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This commit is contained in:
Alex Shi
2012-01-13 23:53:35 +08:00
committed by Konrad Rzeszutek Wilk
parent cd9db80e52
commit 2113f46916
5 changed files with 19 additions and 19 deletions
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8
arch/x86/xen/irq.c
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@@ -26,7 +26,7 @@ static unsigned long xen_save_fl(void)
struct vcpu_info *vcpu;
unsigned long flags;
vcpu = percpu_read(xen_vcpu);
vcpu = this_cpu_read(xen_vcpu);
/* flag has opposite sense of mask */
flags = !vcpu->evtchn_upcall_mask;
@@ -50,7 +50,7 @@ static void xen_restore_fl(unsigned long flags)
make sure we're don't switch CPUs between getting the vcpu
pointer and updating the mask. */
preempt_disable();
vcpu = percpu_read(xen_vcpu);
vcpu = this_cpu_read(xen_vcpu);
vcpu->evtchn_upcall_mask = flags;
preempt_enable_no_resched();
@@ -72,7 +72,7 @@ static void xen_irq_disable(void)
make sure we're don't switch CPUs between getting the vcpu
pointer and updating the mask. */
preempt_disable();
percpu_read(xen_vcpu)->evtchn_upcall_mask = 1;
this_cpu_read(xen_vcpu)->evtchn_upcall_mask = 1;
preempt_enable_no_resched();
}
PV_CALLEE_SAVE_REGS_THUNK(xen_irq_disable);
@@ -86,7 +86,7 @@ static void xen_irq_enable(void)
the caller is confused and is trying to re-enable interrupts
on an indeterminate processor. */
vcpu = percpu_read(xen_vcpu);
vcpu = this_cpu_read(xen_vcpu);
vcpu->evtchn_upcall_mask = 0;
/* Doesn't matter if we get preempted here, because any