Commit b2e4ae69 authored by Christoph Lameter's avatar Christoph Lameter Committed by Tejun Heo
Browse files

xen: Use this_cpu_inc_return 



__this_cpu_inc_return reduces code and simplifies code.

Cc: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Acked-by: default avatarH. Peter Anvin <hpa@zytor.com>
Signed-off-by: default avatarChristoph Lameter <cl@linux.com>
parent cd85fc58

drivers/xen/events.c

+1 −1
Original line number Diff line number Diff line
@@ -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. */