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3cd788c1ee
It's worth to avoid the extra irq_enter()/irq_exit() pair in the case that the reschedule interrupt tracepoints are disabled. Use the static key which indicates that exception tracing is enabled. For now this key is global. It will be optimized in a later step. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20170828064957.299808677@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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