tlb: Don't do trace_tlb_flush() on offline CPUs

This commit causes the tlb_flush() event trace to skip tracing on
offline CPUs, thus preventing RCU readers from running on those
offline CPUs.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
1 file changed