linux-kernel - Re: [RFC PATCH 2/6] Split out tasklets from softirq.c

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Message-ID: <961aa3350706220645i21ca51b6m82a5189c21fdf5c5@mail.gmail.com>
Date:	Fri, 22 Jun 2007 22:45:47 +0900
From:	"Akinobu Mita" <akinobu.mita@...il.com>
To:	"Steven Rostedt" <rostedt@...dmis.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	"Linus Torvalds" <torvalds@...ux-foundation.org>,
	"Ingo Molnar" <mingo@...e.hu>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Thomas Gleixner" <tglx@...utronix.de>,
	"Christoph Hellwig" <hch@...radead.org>,
	"john stultz" <johnstul@...ibm.com>,
	"Oleg Nesterov" <oleg@...sign.ru>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	"Dipankar Sarma" <dipankar@...ibm.com>,
	"David S. Miller" <davem@...emloft.net>, matthew.wilcox@...com,
	kuznet@....inr.ac.ru
Subject: Re: [RFC PATCH 2/6] Split out tasklets from softirq.c

2007/6/22, Steven Rostedt <rostedt@...dmis.org>:

> +static inline void tasklet_unlock_wait(struct tasklet_struct *t)
> +{
> +       while (test_bit(TASKLET_STATE_RUN, &(t)->state)) { barrier(); }
> +}

BTW, can we use cpu_relax() instead of barrier() in this busy-wait loop?
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