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| author | Christoph Lameter <cl@linux.com> | 2010-12-06 11:40:07 -0600 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2010-12-17 15:18:05 +0100 |
| commit | b2e4ae69757cdfef4c612a04f097c1e20489a565 (patch) | |
| tree | 03a8d1c7d6263564474035a110af9ee61e5eddf8 | |
| parent | cd85fc58cd71bf6b89612efafb9a84e655ed7d66 (diff) | |
| download | kernel_samsung_smdk4412-b2e4ae69757cdfef4c612a04f097c1e20489a565.zip kernel_samsung_smdk4412-b2e4ae69757cdfef4c612a04f097c1e20489a565.tar.gz kernel_samsung_smdk4412-b2e4ae69757cdfef4c612a04f097c1e20489a565.tar.bz2 | |
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>
| -rw-r--r-- | drivers/xen/events.c | 2 |
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. */ |