X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Flinux%2Fcpumask.h;h=9cbb781d6f808b361a9f7f1a4df50f8ee9bde9a9;hb=6f91fe88e4e28b40b4f08d99e0ea6d17b70e9567;hp=60e56c6e03dd3ee6c4836031b88626eaba249b1e;hpb=cbefa3258eade263dbc9ae2c1f1ea2ca96e6b457;p=linux-2.6

diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index 60e56c6e03..9cbb781d6f 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -67,7 +67,7 @@
  *
  * int any_online_cpu(mask)		First online cpu in mask
  *
- * for_each_cpu(cpu)			for-loop cpu over cpu_possible_map
+ * for_each_possible_cpu(cpu)		for-loop cpu over cpu_possible_map
  * for_each_online_cpu(cpu)		for-loop cpu over cpu_online_map
  * for_each_present_cpu(cpu)		for-loop cpu over cpu_present_map
  *
@@ -212,17 +212,15 @@ static inline void __cpus_shift_left(cpumask_t *dstp,
 	bitmap_shift_left(dstp->bits, srcp->bits, n, nbits);
 }
 
-#define first_cpu(src) __first_cpu(&(src), NR_CPUS)
-static inline int __first_cpu(const cpumask_t *srcp, int nbits)
-{
-	return min_t(int, nbits, find_first_bit(srcp->bits, nbits));
-}
-
-#define next_cpu(n, src) __next_cpu((n), &(src), NR_CPUS)
-static inline int __next_cpu(int n, const cpumask_t *srcp, int nbits)
-{
-	return min_t(int, nbits, find_next_bit(srcp->bits, nbits, n+1));
-}
+#ifdef CONFIG_SMP
+int __first_cpu(const cpumask_t *srcp);
+#define first_cpu(src) __first_cpu(&(src))
+int __next_cpu(int n, const cpumask_t *srcp);
+#define next_cpu(n, src) __next_cpu((n), &(src))
+#else
+#define first_cpu(src)		0
+#define next_cpu(n, src)	1
+#endif
 
 #define cpumask_of_cpu(cpu)						\
 ({									\
@@ -398,27 +396,18 @@ extern cpumask_t cpu_present_map;
 #define cpu_present(cpu)	((cpu) == 0)
 #endif
 
-#define any_online_cpu(mask)			\
-({						\
-	int cpu;				\
-	for_each_cpu_mask(cpu, (mask))		\
-		if (cpu_online(cpu))		\
-			break;			\
-	cpu;					\
-})
+#ifdef CONFIG_SMP
+int highest_possible_processor_id(void);
+#define any_online_cpu(mask) __any_online_cpu(&(mask))
+int __any_online_cpu(const cpumask_t *mask);
+#else
+#define highest_possible_processor_id()	0
+#define any_online_cpu(mask)		0
+#endif
 
-#define for_each_cpu(cpu)	  for_each_cpu_mask((cpu), cpu_possible_map)
+#define for_each_cpu(cpu)  for_each_cpu_mask((cpu), cpu_possible_map)
+#define for_each_possible_cpu(cpu)  for_each_cpu_mask((cpu), cpu_possible_map)
 #define for_each_online_cpu(cpu)  for_each_cpu_mask((cpu), cpu_online_map)
 #define for_each_present_cpu(cpu) for_each_cpu_mask((cpu), cpu_present_map)
 
-/* Find the highest possible smp_processor_id() */
-#define highest_possible_processor_id() \
-({ \
-	unsigned int cpu, highest = 0; \
-	for_each_cpu_mask(cpu, cpu_possible_map) \
-		highest = cpu; \
-	highest; \
-})
-
-
 #endif /* __LINUX_CPUMASK_H */