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authorLai Jiangshan <laijs@cn.fujitsu.com>2010-01-13 19:38:30 +0800
committerFrederic Weisbecker <fweisbec@gmail.com>2010-01-29 01:05:12 +0100
commitea2c68a08fedb5053ba312d661e47df9f4d72411 (patch)
tree76e5e61b8377aac6283670481171bf899905052b /arch/sparc/include
parent24a53652e361321b09df5040711e69387344ce09 (diff)
downloadlinux-linaro-ea2c68a08fedb5053ba312d661e47df9f4d72411.tar.gz
tracing: Simplify test for function_graph tracing start point
In the function graph tracer, a calling function is to be traced only when it is enabled through the set_graph_function file, or when it is nested in an enabled function. Current code uses TSK_TRACE_FL_GRAPH to test whether it is nested or not. Looking at the code, we can get this: (trace->depth > 0) <==> (TSK_TRACE_FL_GRAPH is set) trace->depth is more explicit to tell that it is nested. So we use trace->depth directly and simplify the code. No functionality is changed. TSK_TRACE_FL_GRAPH is not removed yet, it is left for future usage. Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Steven Rostedt <rostedt@goodmis.org> LKML-Reference: <4B4DB0B6.7040607@cn.fujitsu.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'arch/sparc/include')
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