We expect things like "cat" to block on reads to trace_pipe. That's what
trace_pipe is for.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
start = 0;
while (trace_empty(iter)) {
start = 0;
while (trace_empty(iter)) {
- if (!(trace_flags & TRACE_ITER_BLOCK))
- return -EWOULDBLOCK;
/*
* This is a make-shift waitqueue. The reason we don't use
* an actual wait queue is because:
/*
* This is a make-shift waitqueue. The reason we don't use
* an actual wait queue is because: