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The LITMUS^RT kernel.

Bjoern Brandenburg

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#include <linux/config.h>

#ifdef CONFIG_SMP
	.macro LOCK_PREFIX
1:	lock
	.section .smp_locks,"a"
	.align 8
	.quad 1b
	.previous
	.endm
#else
	.macro LOCK_PREFIX
	.endm
#endif