Frederic Weisbecker c272355732 frv: Add missing RCU idle APIs on idle loop ... commit 41d8fe5bb3 upstream. In the old times, the whole idle task was considered as an RCU quiescent state. But as RCU became more and more successful overtime, some RCU read side critical section have been added even in the code of some architectures idle tasks, for tracing for example. So nowadays, rcu_idle_enter() and rcu_idle_exit() must be called by the architecture to tell RCU about the part in the idle loop that doesn't make use of rcu read side critical sections, typically the part that puts the CPU in low power mode. This is necessary for RCU to find the quiescent states in idle in order to complete grace periods. Add this missing pair of calls in the Frv's idle loop. Reported-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: David Howells <dhowells@redhat.com> Acked-by: David Howells <dhowells@redhat.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2012-10-13 05:38:54 +09:00
..
boot	FRV: Drop 'TOPDIR' from Makefiles	2008-01-28 23:14:37 +01:00
include/asm	frv: delete incorrect task prototypes causing compile fail	2012-05-17 18:00:51 -07:00
kernel	frv: Add missing RCU idle APIs on idle loop	2012-10-13 05:38:54 +09:00
lib	irq_work: Add generic hardirq context callbacks	2010-10-18 19:58:50 +02:00
mb93090-mb00	frv: fix warnings in mb93090-mb00/pci-dma.c about implicit EXPORT_SYMBOL	2012-04-02 14:41:26 -07:00
mm	Disintegrate asm/system.h for FRV	2012-03-28 18:30:02 +01:00
defconfig	kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT	2011-01-20 17:02:05 -08:00
Kconfig	cpu: Register a generic CPU device on architectures that currently do not	2012-01-11 15:50:11 -08:00
Kconfig.debug	[PATCH] frv: drop unsupported debugging features	2006-01-08 20:13:36 -08:00
Makefile	frv: clean up arch/frv/Makefile	2010-08-03 14:09:45 +02:00