linux-stable/kernel/rcu
Paul E. McKenney 88428cc5c2 rcu: Handle outgoing CPUs on exit from idle loop
This commit informs RCU of an outgoing CPU just before that CPU invokes
arch_cpu_idle_dead() during its last pass through the idle loop (via a
new CPU_DYING_IDLE notifier value).  This change means that RCU need not
deal with outgoing CPUs passing through the scheduler after informing
RCU that they are no longer online.  Note that removing the CPU from
the rcu_node ->qsmaskinit bit masks is done at CPU_DYING_IDLE time,
and orphaning callbacks is still done at CPU_DEAD time, the reason being
that at CPU_DEAD time we have another CPU that can adopt them.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2015-03-12 15:19:38 -07:00
..
Makefile rcu: Make SRCU optional by using CONFIG_SRCU 2015-01-06 11:04:29 -08:00
rcu.h tiny_rcu: Directly force QS when call_rcu_[bh|sched]() on idle_task 2015-01-06 11:01:12 -08:00
rcutorture.c rcutorture: Add more diagnostics in rcu_barrier() test failure case 2015-01-10 19:08:06 -08:00
srcu.c rcu: Expand SRCU ->completed to 64 bits 2015-01-06 11:04:26 -08:00
tiny.c Merge branches 'doc.2015.01.07a', 'fixes.2015.01.15a', 'preempt.2015.01.06a', 'srcu.2015.01.06a', 'stall.2015.01.16a' and 'torture.2015.01.11a' into HEAD 2015-01-15 23:34:34 -08:00
tiny_plugin.h Merge branches 'doc.2015.01.07a', 'fixes.2015.01.15a', 'preempt.2015.01.06a', 'srcu.2015.01.06a', 'stall.2015.01.16a' and 'torture.2015.01.11a' into HEAD 2015-01-15 23:34:34 -08:00
tree.c rcu: Handle outgoing CPUs on exit from idle loop 2015-03-12 15:19:38 -07:00
tree.h rcu: Eliminate ->onoff_mutex from rcu_node structure 2015-03-12 15:19:37 -07:00
tree_plugin.h rcu: Process offlining and onlining only at grace-period start 2015-03-12 15:19:37 -07:00
tree_trace.c rcu: Process offlining and onlining only at grace-period start 2015-03-12 15:19:37 -07:00
update.c Merge branches 'torture.2014.11.03a', 'cpu.2014.11.03a', 'doc.2014.11.13a', 'fixes.2014.11.13a', 'signal.2014.10.29a' and 'rt.2014.10.29a' into HEAD 2014-11-13 10:39:04 -08:00