linux/kernel/rcu
Paul E. McKenney 1772947bd0 rcu: Handle NOCB callbacks from irq-disabled idle code
If an RCU callback is queued on a no-CBs CPU from idle code with irqs
disabled, and if that CPU stays idle forever after, the callback will
never be invoked.  This commit therefore adds a check for this situation
in ____call_rcu_nocb(), invoking the RCU core solely for the purpose
of the ensuing return-to-idle transition.  (If the CPU doesn't return
to idle, the next scheduling-clock interrupt will fix things up.)

Reported-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2014-09-16 10:08:03 -07:00
..
Makefile rcutorture: Abstract rcu_torture_random() 2014-02-23 09:00:58 -08:00
rcu.h rcu: Fix __rcu_reclaim() to use true/false for bool 2014-07-09 09:15:32 -07:00
rcutorture.c Josh has moved 2014-07-30 17:16:13 -07:00
srcu.c rcu: Eliminate read-modify-write ACCESS_ONCE() calls 2014-07-09 09:14:49 -07:00
tiny_plugin.h rcu: Protect uses of ->jiffies_stall with ACCESS_ONCE() 2014-04-29 08:44:41 -07:00
tiny.c rcu: Ensure kernel/rcu/rcu.h can be sourced/used stand-alone 2014-02-26 06:35:18 -08:00
tree_plugin.h rcu: Handle NOCB callbacks from irq-disabled idle code 2014-09-16 10:08:03 -07:00
tree_trace.c rcu: Stop tracking FSF's postal address 2014-02-17 15:01:37 -08:00
tree.c rcu: Create rcuo kthreads only for onlined CPUs 2014-09-16 10:08:02 -07:00
tree.h rcu: Create rcuo kthreads only for onlined CPUs 2014-09-16 10:08:02 -07:00
update.c rcu: Remove CONFIG_PROVE_RCU_DELAY 2014-07-09 09:15:31 -07:00