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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2016-10-11 03:26:04 +0200
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2016-11-14 19:46:30 +0100
commitd0af39e89ec59fe7c92c4bcbc2d652ea4c0ee644 (patch)
treed254d9f921fd2f4f4f7c537ff9b9a4858d2ab596 /kernel/rcu/tree.h
parentrcu: RCU_TRACE enables event tracing as well as debugfs (diff)
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torture: Trace long read-side delays
Although rcutorture will occasionally do a 50-millisecond grace-period delay, these delays are quite rare. And rightly so, because otherwise the read rate would be quite low. Thie means that it can be important to identify whether or not a given run contained a long-delay read. This commit therefore inserts a trace_rcu_torture_read() event to flag runs containing long delays. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcu/tree.h')
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