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| author | Christoph Lameter <cl@linux.com> | 2010-12-06 11:16:29 -0600 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2010-12-17 15:07:19 +0100 |
| commit | 780f36d8b3fa9572f731d4fb85067b2e45e6f993 (patch) | |
| tree | 26c2f80122cd863232de2e295e8435f06c9e2527 /drivers/xen/events.c | |
| parent | c7b92516a9c68fa5403879225a5a19974a801ef6 (diff) | |
| download | op-kernel-dev-780f36d8b3fa9572f731d4fb85067b2e45e6f993.zip op-kernel-dev-780f36d8b3fa9572f731d4fb85067b2e45e6f993.tar.gz | |
xen: Use this_cpu_ops
Use this_cpu_ops to reduce code size and simplify things in various places.
V3->V4:
Move instance of this_cpu_inc_return to a later patchset so that
this patch can be applied without infrastructure changes.
Cc: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/xen/events.c')
| -rw-r--r-- | drivers/xen/events.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/xen/events.c b/drivers/xen/events.c index 31af0ac..a10c66d 100644 --- a/drivers/xen/events.c +++ b/drivers/xen/events.c @@ -355,7 +355,7 @@ static void unmask_evtchn(int port) struct evtchn_unmask unmask = { .port = port }; (void)HYPERVISOR_event_channel_op(EVTCHNOP_unmask, &unmask); } else { - struct vcpu_info *vcpu_info = __get_cpu_var(xen_vcpu); + struct vcpu_info *vcpu_info = __this_cpu_read(xen_vcpu); sync_clear_bit(port, &s->evtchn_mask[0]); @@ -1101,7 +1101,7 @@ static void __xen_evtchn_do_upcall(void) { int cpu = get_cpu(); struct shared_info *s = HYPERVISOR_shared_info; - struct vcpu_info *vcpu_info = __get_cpu_var(xen_vcpu); + struct vcpu_info *vcpu_info = __this_cpu_read(xen_vcpu); unsigned count; do { @@ -1141,8 +1141,8 @@ static void __xen_evtchn_do_upcall(void) BUG_ON(!irqs_disabled()); - count = __get_cpu_var(xed_nesting_count); - __get_cpu_var(xed_nesting_count) = 0; + count = __this_cpu_read(xed_nesting_count); + __this_cpu_write(xed_nesting_count, 0); } while (count != 1 || vcpu_info->evtchn_upcall_pending); out: |
