37 lines
1.0 KiB
Diff
37 lines
1.0 KiB
Diff
From ce16b9f1a494b3da48d4a9be3d488fc5eb5198b1 Mon Sep 17 00:00:00 2001
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From: Thomas Gleixner <tglx@linutronix.de>
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Date: Wed, 29 Jun 2011 11:01:51 +0200
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Subject: [PATCH 144/352] stop_machine: Use raw spinlocks
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Use raw-locks in stomp_machine() to allow locking in irq-off regions.
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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---
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kernel/stop_machine.c | 10 +---------
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1 file changed, 1 insertion(+), 9 deletions(-)
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diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c
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index ca834ec..6b29525 100644
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--- a/kernel/stop_machine.c
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+++ b/kernel/stop_machine.c
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@@ -475,15 +475,7 @@ static void cpu_stopper_thread(unsigned int cpu)
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struct cpu_stop_done *done = work->done;
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int ret;
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- /*
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- * Wait until the stopper finished scheduling on all
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- * cpus
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- */
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- lg_global_lock(&stop_cpus_lock);
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- /*
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- * Let other cpu threads continue as well
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- */
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- lg_global_unlock(&stop_cpus_lock);
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+ /* XXX */
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/* cpu stop callbacks must not sleep, make in_atomic() == T */
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preempt_count_inc();
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--
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2.7.4
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