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(parent: e9408e4) | patch
rcu: Make RCU_CPU_STALL_INFO include number of fqs attempts
authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Mon, 8 Dec 2014 17:57:48 +0000 (09:57 -0800)
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Tue, 6 Jan 2015 19:05:25 +0000 (11:05 -0800)
commitfc908ed33e7c1428f799abb12399f906da03b397
tree329342ea2dd85f88d6dae001790d5912342fd005tree | snapshot
parente9408e4f278875aa5862560b4b425b27dfcb643fcommit | diff
rcu: Make RCU_CPU_STALL_INFO include number of fqs attempts

One way that an RCU CPU stall warning can happen is if the grace-period
kthread is not allowed to execute.  One proxy for this kthread's
forward progress is the number of force-quiescent-state (fqs) scans.
This commit therefore adds the number of fqs scans to the RCU CPU stall
warning printouts when CONFIG_RCU_CPU_STALL_INFO=y.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
kernel/rcu/tree.c diff | blob | history
kernel/rcu/tree.h diff | blob | history
kernel/rcu/tree_plugin.h diff | blob | history
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