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(parent: c033574) | patch
rcu: Allow processing deferred QSes for exiting RCU-preempt readers
authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Thu, 28 Jun 2018 04:48:00 +0000 (21:48 -0700)
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Thu, 30 Aug 2018 23:02:35 +0000 (16:02 -0700)
commit27c744e32a9a4066daca0ee7496819bff78c1b37
tree227dc2ce4b056ad50fd0b3a9b8c03a873188ced6tree | snapshot
parentc0335743c5d80233753d81a4c7d22b7437363a8fcommit | diff
rcu: Allow processing deferred QSes for exiting RCU-preempt readers

If an RCU-preempt read-side critical section is exiting, that is,
->rcu_read_lock_nesting is negative, then it is a good time to look
at the possibility of reporting deferred quiescent states.  This
commit therefore updates the checks in rcu_preempt_need_deferred_qs()
to allow exiting critical sections to report deferred quiescent states.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
kernel/rcu/tree_plugin.h diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git