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authorSteven Rostedt <srostedt@redhat.com>2012-04-16 15:41:28 -0400
committerSteven Rostedt <rostedt@goodmis.org>2012-04-16 15:41:28 -0400
commit348f0fc238efb441a28e7644c51f9fd3001b228a (patch)
tree780fa93c72777045a986f0ce648efc2bf8e35999 /kernel/rwsem.c
parent6e48b550d1f5f1919e6500547ae14a73fbf66c7b (diff)
tracing: Fix regression with tracing_on
The change to make tracing_on affect only the ftrace ring buffer, caused a bug where it wont affect any ring buffer. The problem was that the buffer of the trace_array was passed to the write function and not the trace array itself. The trace_array can change the buffer when running a latency tracer. If this happens, then the buffer being disabled may not be the buffer currently used by ftrace. This will cause the tracing_on file to become useless. The simple fix is to pass the trace_array to the write function instead of the buffer. Then the actual buffer may be changed. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/rwsem.c')
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