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ARM: smp: Drop RCU_NONIDLE usage in cpu_die()

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Before f7b861b7a6 ("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>
This commit is contained in:
Stephen Boyd 2013-05-20 17:57:16 -07:00 committed by Linus Torvalds
parent 0ddaa97425
commit aa03381046
1 changed files with 1 additions and 1 deletions
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2
arch/arm/kernel/smp.c
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@ -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