rcu: Add jiffies-since-GP-activity to show_rcu_gp_kthreads()

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This commit adds a printout of the number of jiffies since the last time
that the RCU grace-period kthread did any processing.  This can be useful
when tracking down forward-progress issues.

Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>

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Paul E. McKenney 2018-10-02 12:42:21 -07:00

parent 691960197e

commit c669c014d1

1 changed files with 5 additions and 3 deletions

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kernel/rcu/tree.c

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