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Date:	Tue, 06 Nov 2007 07:58:46 -0800
From:	David Daney <ddaney@avtrex.com>
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To:	Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc:	ralf@linux-mips.org, linux-mips@linux-mips.org
Subject: Re: WAIT vs. tickless kernel
References: <20071101.013124.108121433.anemo@mba.ocn.ne.jp>	<20071031163900.GB22871@linux-mips.org>	<20071103.014649.122254137.anemo@mba.ocn.ne.jp> <20071107.003925.74752709.anemo@mba.ocn.ne.jp>
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Atsushi Nemoto wrote:
> +LEAF(r4k_wait)
> +	.set	push
> +	.set	noreorder
> +	/* start of rollback region */
> +	LONG_L	t0, TI_FLAGS($28)
> +	nop
> +	andi	t0, _TIF_NEED_RESCHED
> +	bnez	t0, 1f
> +	 nop
> +	nop
> +	nop
> +	.set	mips3
> +	wait
> +	.set	mips0
> +	/* end of rollback region (the region size must be power of two) */
> +	.set	pop
>   

The .set mips0 is redundant as .set pop immediately follows.

David Daney