cpumask: add for_each_{possible,online}_cpu_wrap

The iterators are trivial extensions of for_each_cpu_wrap(). They
are used in the following patches of the series to replace
cpumask_next_wrap().

Signed-off-by: Yury Norov <yury.norov@gmail.com>

diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index 36a890d0dd57545dafdfbc134bf2df91ee59b21d..e57fd41ca38e9cda68e8145170c18fd0aa429e25 100644 (file)
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -1033,11 +1033,21 @@ extern const DECLARE_BITMAP(cpu_all_bits, NR_CPUS);
 #define for_each_possible_cpu(cpu)     for ((cpu) = 0; (cpu) < 1; (cpu)++)
 #define for_each_online_cpu(cpu)       for ((cpu) = 0; (cpu) < 1; (cpu)++)
 #define for_each_present_cpu(cpu)      for ((cpu) = 0; (cpu) < 1; (cpu)++)
+
+#define for_each_possible_cpu_wrap(cpu, start) \
+       for ((void)(start), (cpu) = 0; (cpu) < 1; (cpu)++)
+#define for_each_online_cpu_wrap(cpu, start)   \
+       for ((void)(start), (cpu) = 0; (cpu) < 1; (cpu)++)
 #else
 #define for_each_possible_cpu(cpu) for_each_cpu((cpu), cpu_possible_mask)
 #define for_each_online_cpu(cpu)   for_each_cpu((cpu), cpu_online_mask)
 #define for_each_enabled_cpu(cpu)   for_each_cpu((cpu), cpu_enabled_mask)
 #define for_each_present_cpu(cpu)  for_each_cpu((cpu), cpu_present_mask)
+
+#define for_each_possible_cpu_wrap(cpu, start) \
+       for_each_cpu_wrap((cpu), cpu_possible_mask, (start))
+#define for_each_online_cpu_wrap(cpu, start)   \
+       for_each_cpu_wrap((cpu), cpu_online_mask, (start))
 #endif
 
 /* Wrappers for arch boot code to manipulate normally-constant masks */