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authorChristoph Lameter <cl@linux.com>2010-12-06 11:40:07 -0600
committerTejun Heo <tj@kernel.org>2010-12-17 15:18:05 +0100
commitb2e4ae69757cdfef4c612a04f097c1e20489a565 (patch)
tree03a8d1c7d6263564474035a110af9ee61e5eddf8 /drivers/xen
parentcd85fc58cd71bf6b89612efafb9a84e655ed7d66 (diff)
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op-kernel-dev-b2e4ae69757cdfef4c612a04f097c1e20489a565.tar.gz
xen: Use this_cpu_inc_return
__this_cpu_inc_return reduces code and simplifies code. Cc: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Acked-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Christoph Lameter <cl@linux.com>
Diffstat (limited to 'drivers/xen')
-rw-r--r--drivers/xen/events.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index a10c66d..65f8637 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -1109,7 +1109,7 @@ static void __xen_evtchn_do_upcall(void)
vcpu_info->evtchn_upcall_pending = 0;
- if (__get_cpu_var(xed_nesting_count)++)
+ if (__this_cpu_inc_return(xed_nesting_count) - 1)
goto out;
#ifndef CONFIG_X86 /* No need for a barrier -- XCHG is a barrier on x86. */
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