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| author | Shan Wei <davidshan@tencent.com> | 2012-11-19 13:21:01 +0800 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2013-01-25 20:36:54 -0500 |
| commit | 821465295b36136998ef294fe176fba4e09c1cd9 (patch) | |
| tree | 241bf19a408130332b123780b55fc8303fee491b /kernel/trace/trace_functions_graph.c | |
| parent | d75f717e19fe595e7efbf67de195ada8d89dfbbe (diff) | |
| download | op-kernel-dev-821465295b36136998ef294fe176fba4e09c1cd9.zip op-kernel-dev-821465295b36136998ef294fe176fba4e09c1cd9.tar.gz | |
tracing: Use __this_cpu_inc/dec operation instead of __get_cpu_var
__this_cpu_inc_return() or __this_cpu_dec generates a single instruction,
which is faster than __get_cpu_var operation.
Link: http://lkml.kernel.org/r/50A9C1BD.1060308@gmail.com
Reviewed-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Shan Wei <davidshan@tencent.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_functions_graph.c')
0 files changed, 0 insertions, 0 deletions
