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Rev 2927 Rev 4691
Line 40... Line 40...
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	pushl %ebx
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	pushl %ebx
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	movl 12(%esp),%ebx
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	movl 12(%esp),%ebx
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0:
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	#ifdef CONFIG_HT
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	pause			# Pentium 4's with HT love this instruction
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	pause			# Pentium 4's with HT love this instruction
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	#endif
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	movl (%ebx),%eax
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	movl (%ebx),%eax
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	testl %eax,%eax
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	testl %eax,%eax
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	jnz 0b			# lightweight looping while it is locked
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	jnz 0b			# lightweight looping while it is locked
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	incl %eax
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	incl %eax
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	xchgl %eax,(%ebx)	# now use the atomic operation
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	xchgl %eax,(%ebx)	# now use the atomic operation