Commit 4a7b005d authored by Jeremy Fitzhardinge's avatar Jeremy Fitzhardinge
Browse files

xen/multicalls: add unlikely around slowpath in __xen_mc_entry() 



Signed-off-by: default avatarJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
parent ffc78767

arch/x86/xen/multicalls.c

+2 −2
Original line number Diff line number Diff line
@@ -123,8 +123,8 @@ struct multicall_space __xen_mc_entry(size_t args) 
	BUG_ON(preemptible());

	BUG_ON(b->argidx >= MC_ARGS);



	if (b->mcidx == MC_BATCH ||

	    (argidx + args) >= MC_ARGS) {

	if (unlikely(b->mcidx == MC_BATCH ||

		     (argidx + args) >= MC_ARGS)) {

		trace_xen_mc_flush_reason((b->mcidx == MC_BATCH) ?

					  XEN_MC_FL_BATCH : XEN_MC_FL_ARGS);

		xen_mc_flush();