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Commit d9c6d691 authored by Andi Kleen's avatar Andi Kleen Committed by Linus Torvalds
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x86_64: Don't use softirq safe locks in smp_call_function 



It is not fully softirq safe anyways.

Can't do a WARN_ON unfortunately because it could trigger in the
panic case.

Signed-off-by: default avatarAndi Kleen <ak@suse.de>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent af3e9a2e

arch/x86_64/kernel/smp.c

+2 −2
Original line number Original line Diff line number Diff line
@@ -386,9 +386,9 @@ int smp_call_function_single (int cpu, void (*func) (void *info), void *info, 
		return 0;

		return 0;

	}

	}





	spin_lock_bh(&call_lock);

	spin_lock(&call_lock);

	__smp_call_function_single(cpu, func, info, nonatomic, wait);

	__smp_call_function_single(cpu, func, info, nonatomic, wait);

	spin_unlock_bh(&call_lock);

	spin_unlock(&call_lock);

	put_cpu();

	put_cpu();

	return 0;

	return 0;

}

}