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| author |   Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2010-12-17 17:20:25 -0800 |
|---|---|---|
| committer | Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2011-07-18 15:43:45 -0700 |
| commit | 4a7b005dbfa554e7cc7fbc08e0299a9b7a91ef3b (patch) | |
| tree | b3b7a7058c38d0dbce2f59c3a79704f86bd7cc13 | |
| parent | xen/multicalls: disable MC_DEBUG (diff) | |
| download | wireguard-linux-4a7b005dbfa554e7cc7fbc08e0299a9b7a91ef3b.tar.xz wireguard-linux-4a7b005dbfa554e7cc7fbc08e0299a9b7a91ef3b.zip | |
xen/multicalls: add unlikely around slowpath in __xen_mc_entry()
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
| -rw-r--r-- | arch/x86/xen/multicalls.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/xen/multicalls.c b/arch/x86/xen/multicalls.c index 3001162c4bce..cc71f7cf1adc 100644 --- a/arch/x86/xen/multicalls.c +++ b/arch/x86/xen/multicalls.c @@ -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(); |