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authorSteven Rostedt (VMware) <rostedt@goodmis.org>2021-10-15 13:42:40 -0400
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2021-10-19 20:33:20 -0400
commit9b84fadc444de5456ab5f5487e2108311c724c3f (patch)
tree0bbafa429f2728795926fbe1b152ea2415a339f0 /crypto/internal.h
parent7ce1bb83a14019f8c396d57ec704d19478747716 (diff)
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tracing: Reuse logic from perf's get_recursion_context()
Instead of having branches that adds noise to the branch prediction, use the addition logic to set the bit for the level of interrupt context that the state is currently in. This copies the logic from perf's get_recursion_context() function. Link: https://lore.kernel.org/all/20211015161702.GF174703@worktop.programming.kicks-ass.net/ Suggested-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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