#define TRACE_CONTEXT_MASK TRACE_LIST_MAX
+/*
+ * Used for setting context
+ * NMI = 0
+ * IRQ = 1
+ * SOFTIRQ = 2
+ * NORMAL = 3
+ */
+enum {
+ TRACE_CTX_NMI,
+ TRACE_CTX_IRQ,
+ TRACE_CTX_SOFTIRQ,
+ TRACE_CTX_NORMAL,
+};
+
static __always_inline int trace_get_context_bit(void)
{
- int bit;
-
- if (in_interrupt()) {
- if (in_nmi())
- bit = 0;
-
- else if (in_irq())
- bit = 1;
- else
- bit = 2;
- } else
- bit = 3;
+ unsigned long pc = preempt_count();
- return bit;
+ if (!(pc & (NMI_MASK | HARDIRQ_MASK | SOFTIRQ_OFFSET)))
+ return TRACE_CTX_NORMAL;
+ else
+ return pc & NMI_MASK ? TRACE_CTX_NMI :
+ pc & HARDIRQ_MASK ? TRACE_CTX_IRQ : TRACE_CTX_SOFTIRQ;
}
static __always_inline int trace_test_and_set_recursion(int start, int max)