fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / include / linux / cpumask.h

diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index a47ad70..d0e8c8b 100644 (file)
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -8,8 +8,8 @@
  * See detailed comments in the file linux/bitmap.h describing the
  * data type on which these cpumasks are based.
  *
- * For details of cpumask_scnprintf() and cpumask_parse(),
- * see bitmap_scnprintf() and bitmap_parse() in lib/bitmap.c.
+ * For details of cpumask_scnprintf() and cpumask_parse_user(),
+ * see bitmap_scnprintf() and bitmap_parse_user() in lib/bitmap.c.
  * For details of cpulist_scnprintf() and cpulist_parse(), see
  * bitmap_scnlistprintf() and bitmap_parselist(), also in bitmap.c.
  * For details of cpu_remap(), see bitmap_bitremap in lib/bitmap.c
@@ -49,7 +49,7 @@
  * unsigned long *cpus_addr(mask)      Array of unsigned long's in mask
  *
  * int cpumask_scnprintf(buf, len, mask) Format cpumask for printing
- * int cpumask_parse(ubuf, ulen, mask) Parse ascii string as cpumask
+ * int cpumask_parse_user(ubuf, ulen, mask)    Parse ascii string as cpumask
  * int cpulist_scnprintf(buf, len, mask) Format cpumask as list for printing
  * int cpulist_parse(buf, map)         Parse ascii string as cpulist
  * int cpu_remap(oldbit, old, new)     newbit = map(old, new)(oldbit)
@@ -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)                                            \
 ({                                                                     \
@@ -275,12 +273,12 @@ static inline int __cpumask_scnprintf(char *buf, int len,
        return bitmap_scnprintf(buf, len, srcp->bits, nbits);
 }
 
-#define cpumask_parse(ubuf, ulen, dst) \
-                       __cpumask_parse((ubuf), (ulen), &(dst), NR_CPUS)
-static inline int __cpumask_parse(const char __user *buf, int len,
+#define cpumask_parse_user(ubuf, ulen, dst) \
+                       __cpumask_parse_user((ubuf), (ulen), &(dst), NR_CPUS)
+static inline int __cpumask_parse_user(const char __user *buf, int len,
                                        cpumask_t *dstp, int nbits)
 {
-       return bitmap_parse(buf, len, dstp->bits, nbits);
+       return bitmap_parse_user(buf, len, dstp->bits, nbits);
 }
 
 #define cpulist_scnprintf(buf, len, src) \
@@ -319,7 +317,8 @@ static inline void __cpus_remap(cpumask_t *dstp, const cpumask_t *srcp,
                (cpu) < NR_CPUS;                \
                (cpu) = next_cpu((cpu), (mask)))
 #else /* NR_CPUS == 1 */
-#define for_each_cpu_mask(cpu, mask) for ((cpu) = 0; (cpu) < 1; (cpu)++)
+#define for_each_cpu_mask(cpu, mask)           \
+       for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask)
 #endif /* NR_CPUS */
 
 /*
@@ -398,28 +397,17 @@ 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_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 */