ring-buffer: add locks around rb_per_cpu_empty

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The checking of whether the buffer is empty or not needs to be serialized
among the readers. Add the reader spin lock around it.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

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Steven Rostedt 2009-06-17 00:39:43 -04:00 • committed by Steven Rostedt

parent 5f78abeebb

commit d47882078f

1 changed files with 9 additions and 2 deletions

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11

kernel/trace/ring_buffer.c

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