linux-kernel - Re: [PATCH RT] convert RCU Preempt tasklet into softirq.

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Message-ID: <20070608200058.GC18399@linux.vnet.ibm.com>
Date:	Fri, 8 Jun 2007 13:00:58 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	john stultz <johnstul@...ibm.com>, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Oleg Nesterov <oleg@...sign.ru>,
	LKML <linux-kernel@...r.kernel.org>,
	Dipankar Sarma <dipankar@...ibm.com>,
	RT <linux-rt-users@...r.kernel.org>
Subject: Re: [PATCH RT] convert RCU Preempt tasklet into softirq.

On Fri, Jun 08, 2007 at 03:43:48PM -0400, Steven Rostedt wrote:
> On Fri, 2007-06-08 at 12:36 -0700, Paul E. McKenney wrote:
> > On Fri, Jun 08, 2007 at 11:27:08AM -0400, Steven Rostedt wrote:
> 
> > > The first time I compiled it, I forgot the ';' and got a warning there.
> > > But the warning also included "declaring structure softirq_action in
> > > prototype", so I fixed both the ';' and added the struct. I can try
> > > compile without it. But I also know that adding #include <interrupt.h>
> > > in rcupreempt.h caused issues too.
> > 
> > If I leave out both the "struct softirq_action" and the
> > rcu_process_callbacks() declaration,, it compiles for me.
> > 
> > So I guess the rcu_process_callbacks() should be declared static...
> 
> OK, I can update the patch to reflect that. Remember, I didn't learn
> anything from doing this patch, so I have no idea why
> rcu_procell_callbacks was global. I was just keeping to the norm. :-)

Hey, -I- learned something from your doing the patch -- namely that
rcu_process_callbacks() was needlessly non-static.  ;-)

> Actually, I'll make a separate patch for this change. This is a
> different issue.

Sounds good!

						Thanx, Paul
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