bfin-4845/trace.i.4

   1 typedef long long loff_t;
   2 int __test_bit(int nr, const void *addr)
   3 {
   4         int *a = (int *)addr;
   5         int mask;
   6         a += nr >> 5;
   7         mask = 1 << (nr & 0x1f);
   8         return ((mask & *a) != 0);
   9 }
  10 int test_bit(int nr, const void *addr)
  11 {
  12         return __test_bit(nr, addr);
  13 };
  14 typedef struct {
  15 } atomic_t;
  16 typedef struct cpumask {
  17         unsigned long
  18             bits[(((1) + (8 * sizeof(long)) - 1) / (8 * sizeof(long)))];
  19 } cpumask_t;
  20 struct trace_array_cpu {
  21         int disabled;
  22 };
  23 struct trace_array {
  24         struct trace_array_cpu *data[1];
  25 };
  26 cpumask_t tracing_buffer_mask;
  27 struct trace_array global_trace;
  28 cpumask_t tracing_cpumask;
  29 cpumask_t tracing_cpumask_new;
  30 tracing_cpumask_write()
  31 {
  32         int err;
  33         int cpu;
  34 struct file *filp;
  35  const char *ubuf;
  36 unsigned long count;
  37 long long * ppos;
  38         for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)tracing_buffer_mask) {
  39                 if (test_bit((cpu), (tracing_cpumask).bits)
  40                     && !test_bit((cpu), (tracing_cpumask_new).bits)) {
  41                         atomic_inc(&global_trace.data[cpu]->disabled);
  42                 }
  43                 if (!test_bit((cpu), (tracing_cpumask).bits)
  44                     && test_bit((cpu), (tracing_cpumask_new).bits)) {
  45                         atomic_dec(&global_trace.data[cpu]->disabled);
  46                 }
  47         }
  48 }