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Steven Rostedt authored
If a function is set to be traced by the set_graph_function, but the option funcgraph-irqs is zero, and the traced function happens to be called from a interrupt, it will not be traced. The point of funcgraph-irqs is to not trace interrupts when we are preempted by an irq, not to not trace functions we want to trace that happen to be *in* a irq. Luckily the current->trace_recursion element is perfect to add a flag to help us be able to trace functions within an interrupt even when we are not tracing interrupts that preempt the trace. Reported-by:
Heiko Carstens <heiko.carstens@de.ibm.com> Tested-by:
Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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