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MF
1int test_bit(int nr, const void *addr)
2{
3 int *a = (int *)addr;
4 int mask;
5 a += nr >> 5;
6 mask = 1 << (nr & 0x1f);
7 return ((mask & *a) != 0);
8}
9typedef struct cpumask {
10 unsigned long bits[1];
11} cpumask_t;
12struct trace_array_cpu {
13 int disabled;
14};
15struct trace_array {
16 struct trace_array_cpu *data[1];
17};
18cpumask_t tracing_buffer_mask;
19struct trace_array global_trace;
20cpumask_t tracing_cpumask;
21cpumask_t tracing_cpumask_new;
22tracing_cpumask_write()
23{
24 int cpu;
25 for (cpu = 0; cpu < 1; cpu++) {
26 if (test_bit(cpu, tracing_cpumask.bits))
27 atomic_inc(&global_trace.data[cpu]->disabled);
28 if (!test_bit(cpu, tracing_cpumask.bits))
29 atomic_dec(&global_trace.data[cpu]->disabled);
30 }
31}