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authorStephen Boyd <sboyd@codeaurora.org>2013-05-20 17:57:16 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-05-21 08:56:21 -0700
commitaa033810461ee56abbef6cef10aabd6b97f5caee (patch)
tree9c21df247fe421edf215515d3f2ab9c99ef46964
parent0ddaa974258a4cde9a06c079bfd7863644e10d31 (diff)
downloadvexpress-lsk-aa033810461ee56abbef6cef10aabd6b97f5caee.tar.gz
ARM: smp: Drop RCU_NONIDLE usage in cpu_die()
Before f7b861b7a6d9 ("arm: Use generic idle loop") ARM would kill the CPU within the rcu idle section. Now that the rcu_idle_enter()/exit() pair have been pushed lower down in the idle loop this is no longer true and so using RCU_NONIDLE here is no longer necessary and also harmful because RCU is not actually idle at this point. Cc: Russell King <linux@arm.linux.org.uk> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--arch/arm/kernel/smp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 47ab90563bf..550d63cef68 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -251,7 +251,7 @@ void __ref cpu_die(void)
* this returns, power and/or clocks can be removed at any point
* from this CPU and its cache by platform_cpu_kill().
*/
- RCU_NONIDLE(complete(&cpu_died));
+ complete(&cpu_died);
/*
* Ensure that the cache lines associated with that completion are