[PATCH] uml: smp build fix

From: Sonny Rao <sonny@burdell.org>

Make the SMP code compile, at least, to make testing possible, and remove
its dependency on CONFIG_BROKEN.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/um/kernel/smp.c

@@ -29,9 +29,11 @@ DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
 #include "os.h"
 
 /* CPU online map, set by smp_boot_cpus */
-unsigned long cpu_online_map = CPU_MASK_NONE;
+cpumask_t cpu_online_map = CPU_MASK_NONE;
+cpumask_t cpu_possible_map = CPU_MASK_NONE;
 
 EXPORT_SYMBOL(cpu_online_map);
+EXPORT_SYMBOL(cpu_possible_map);
 
 /* Per CPU bogomips and other parameters
  * The only piece used here is the ipi pipe, which is set before SMP is
@@ -125,6 +127,10 @@ void smp_prepare_cpus(unsigned int maxcpus)
 	struct task_struct *idle;
 	unsigned long waittime;
 	int err, cpu, me = smp_processor_id();
+	int i;
+
+	for (i = 0; i < ncpus; ++i)
+		cpu_set(i, cpu_possible_map);
 
 	cpu_clear(me, cpu_online_map);
 	cpu_set(me, cpu_online_map);

include/asm-um/smp.h

@@ -9,6 +9,8 @@
 #include "linux/cpumask.h"
 
 extern cpumask_t cpu_online_map;
+extern cpumask_t cpu_possible_map;
+
 
 #define smp_processor_id() (current_thread->cpu)
 #define cpu_logical_map(n) (n)

include/asm-um/spinlock.h

+#ifndef __UM_SPINLOCK_H
+#define __UM_SPINLOCK_H
+
+#include "asm/arch/spinlock.h"
+
+#endif