sprint_symbol(): use less stack

[safe/jmp/linux-2.6] / kernel / rcupreempt.c

diff --git a/kernel/rcupreempt.c b/kernel/rcupreempt.c
index 6f62b77..59236e8 100644 (file)
--- a/kernel/rcupreempt.c
+++ b/kernel/rcupreempt.c
@@ -54,17 +54,9 @@
 #include <linux/cpu.h>
 #include <linux/random.h>
 #include <linux/delay.h>
-#include <linux/byteorder/swabb.h>
 #include <linux/cpumask.h>
 #include <linux/rcupreempt_trace.h>
-
-/*
- * Macro that prevents the compiler from reordering accesses, but does
- * absolutely -nothing- to prevent CPUs from reordering.  This is used
- * only to mediate communication between mainline code and hardware
- * interrupt and NMI handlers.
- */
-#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
+#include <asm/byteorder.h>
 
 /*
  * PREEMPT_RCU data structures.
@@ -756,7 +748,7 @@ rcu_try_flip_idle(void)
 
        /* Now ask each CPU for acknowledgement of the flip. */
 
-       for_each_cpu_mask(cpu, rcu_cpu_online_map) {
+       for_each_cpu_mask_nr(cpu, rcu_cpu_online_map) {
                per_cpu(rcu_flip_flag, cpu) = rcu_flipped;
                dyntick_save_progress_counter(cpu);
        }
@@ -774,7 +766,7 @@ rcu_try_flip_waitack(void)
        int cpu;
 
        RCU_TRACE_ME(rcupreempt_trace_try_flip_a1);
-       for_each_cpu_mask(cpu, rcu_cpu_online_map)
+       for_each_cpu_mask_nr(cpu, rcu_cpu_online_map)
                if (rcu_try_flip_waitack_needed(cpu) &&
                    per_cpu(rcu_flip_flag, cpu) != rcu_flip_seen) {
                        RCU_TRACE_ME(rcupreempt_trace_try_flip_ae1);
@@ -806,7 +798,7 @@ rcu_try_flip_waitzero(void)
        /* Check to see if the sum of the "last" counters is zero. */
 
        RCU_TRACE_ME(rcupreempt_trace_try_flip_z1);
-       for_each_cpu_mask(cpu, rcu_cpu_online_map)
+       for_each_cpu_mask_nr(cpu, rcu_cpu_online_map)
                sum += RCU_DATA_CPU(cpu)->rcu_flipctr[lastidx];
        if (sum != 0) {
                RCU_TRACE_ME(rcupreempt_trace_try_flip_ze1);
@@ -821,7 +813,7 @@ rcu_try_flip_waitzero(void)
        smp_mb();  /*  ^^^^^^^^^^^^ */
 
        /* Call for a memory barrier from each CPU. */
-       for_each_cpu_mask(cpu, rcu_cpu_online_map) {
+       for_each_cpu_mask_nr(cpu, rcu_cpu_online_map) {
                per_cpu(rcu_mb_flag, cpu) = rcu_mb_needed;
                dyntick_save_progress_counter(cpu);
        }
@@ -841,7 +833,7 @@ rcu_try_flip_waitmb(void)
        int cpu;
 
        RCU_TRACE_ME(rcupreempt_trace_try_flip_m1);
-       for_each_cpu_mask(cpu, rcu_cpu_online_map)
+       for_each_cpu_mask_nr(cpu, rcu_cpu_online_map)
                if (rcu_try_flip_waitmb_needed(cpu) &&
                    per_cpu(rcu_mb_flag, cpu) != rcu_mb_done) {
                        RCU_TRACE_ME(rcupreempt_trace_try_flip_me1);