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| author | Stephen Boyd <sboyd@codeaurora.org> | 2013-05-20 17:57:16 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-21 08:56:21 -0700 |
| commit | aa033810461ee56abbef6cef10aabd6b97f5caee (patch) | |
| tree | 9c21df247fe421edf215515d3f2ab9c99ef46964 | |
| parent | 0ddaa974258a4cde9a06c079bfd7863644e10d31 (diff) | |
| download | talos-obmc-linux-aa033810461ee56abbef6cef10aabd6b97f5caee.tar.gz talos-obmc-linux-aa033810461ee56abbef6cef10aabd6b97f5caee.zip | |
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.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 47ab90563bf4..550d63cef68e 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 |
