Frederic Weisbecker 3b30d3182f alpha: Add missing RCU idle APIs on idle loop ... commit 4c94cada48 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 Alpha's idle loop. Reported-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Tested-by: Michael Cree <mcree@orcon.net.nz> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: alpha <linux-alpha@vger.kernel.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.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
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boot	Disintegrate asm/system.h for Alpha	2012-03-28 18:11:12 +01:00
include/asm	Redefine ATOMIC_INIT and ATOMIC64_INIT to drop the casts	2012-10-02 10:29:55 -07:00
kernel	alpha: Add missing RCU idle APIs on idle loop	2012-10-13 05:38:54 +09:00
lib	Disintegrate asm/system.h for Alpha	2012-03-28 18:11:12 +01:00
math-emu	alpha: change to new Makefile flag variables	2011-01-17 05:42:13 +01:00
mm	Disintegrate asm/system.h for Alpha	2012-03-28 18:11:12 +01:00
oprofile	Disintegrate asm/system.h for Alpha	2012-03-28 18:11:12 +01:00
defconfig	defconfig reduction	2010-08-14 22:26:53 +02:00
Kconfig	alpha: VGA_HOSE depends on VGA_CONSOLE	2012-05-02 15:54:05 -04:00
Kconfig.debug
Makefile