xen/multicall: move *idx fields to start of mc_buffer

The CPU would prefer small offsets.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

diff --git a/arch/x86/xen/multicalls.c b/arch/x86/xen/multicalls.c
index 2474553..0d82003 100644 (file)
--- a/arch/x86/xen/multicalls.c
+++ b/arch/x86/xen/multicalls.c
@@ -36,6 +36,7 @@
 
 
 struct mc_buffer {
+       unsigned mcidx, argidx, cbidx;
        struct multicall_entry entries[MC_BATCH];
 #if MC_DEBUG
        struct multicall_entry debug[MC_BATCH];
@@ -46,7 +47,6 @@ struct mc_buffer {
                void (*fn)(void *);
                void *data;
        } callbacks[MC_BATCH];
-       unsigned mcidx, argidx, cbidx;
 };
 
 static DEFINE_PER_CPU(struct mc_buffer, mc_buffer);