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(parent: ca0dd16) | patch
rcu: Break more call_rcu() deadlock involving scheduler and perf
authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Tue, 29 Jul 2014 21:50:47 +0000 (14:50 -0700)
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Sun, 7 Sep 2014 23:18:17 +0000 (16:18 -0700)
commitadcbead66356120ef6ecf1a4884b60bb3d317f96
tree94433c52525a23ecb250aa155130cdd0753d4404tree | snapshot
parentca0dd166c108704dc09d182209a610b32bdc19b4commit | diff
rcu: Break more call_rcu() deadlock involving scheduler and perf

Commit 188be2a8e26e6 (rcu: Break call_rcu() deadlock involving scheduler
and perf) covered the case where __call_rcu_nocb_enqueue() needs to wake
the rcuo kthread due to the queue being initially empty, but did not
do anything for the case where the queue was overflowing.  This commit
therefore also defers wakeup for the overflow case.

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