tree ad10f2172384d2112b6e8136b9981a0eb813539b
parent 5f78abeebbf0a80975d719e11374535ca15396cb
author Steven Rostedt <srostedt@redhat.com> 1245213583 -0400
committer Steven Rostedt <rostedt@goodmis.org> 1245262583 -0400

ring-buffer: add locks around rb_per_cpu_empty

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>