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(parent: 468d01b) | patch
rcu: Make RCU_FANOUT_LEAF help text more explicit about skew_tick
authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Fri, 3 Feb 2017 17:27:00 +0000 (09:27 -0800)
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Wed, 19 Apr 2017 16:29:17 +0000 (09:29 -0700)
commit024828800926dcb385b094e2438151647c3f8251
treee6bbde0be435301f880f6b033ab52a3bb354ab99tree | snapshot
parent468d01bec544286bb5283f012b95b5b84636565bcommit | diff
rcu: Make RCU_FANOUT_LEAF help text more explicit about skew_tick

If you set RCU_FANOUT_LEAF too high, you can get lock contention
on the leaf rcu_node, and you should boot with the skew_tick kernel
parameter set in order to avoid this lock contention.  This commit
therefore upgrades the RCU_FANOUT_LEAF help text to explicitly state
this.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
init/Kconfig diff | blob | history
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