x86: optimize lock prefix switching to run less frequently

[net-next-2.6.git] / include / linux / smp.h

diff --git a/include/linux/smp.h b/include/linux/smp.h
index c25e66bcecf335cfead012f4fd8feeff8834e5aa..55232ccf9cfdbb020765e89f99b22c7fc9a35af2 100644 (file)
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -78,6 +78,8 @@ int on_each_cpu(void (*func) (void *info), void *info, int retry, int wait);
  */
 void smp_prepare_boot_cpu(void);
 
+extern unsigned int setup_max_cpus;
+
 #else /* !SMP */
 
 /*