linux-kernel - Re: [PATCH -mm 1/2] rename is_single_threaded(task) to is_current_single

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Message-ID: <20090710014623.GA4723@redhat.com>
Date:	Fri, 10 Jul 2009 03:46:23 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	David Howells <dhowells@...hat.com>,
	James Morris <jmorris@...ei.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Roland McGrath <roland@...hat.com>,
	Stephen Smalley <sds@...ho.nsa.gov>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH -mm 1/2] rename is_single_threaded(task) to
	is_current_single_threaded(void)

On 07/09, Christoph Hellwig wrote:
>
> On Thu, Jul 09, 2009 at 11:28:47PM +0200, Oleg Nesterov wrote:
> > (on top of rework-fix-is_single_threaded.patch)
> >
> > - is_single_threaded(task) is not safe unless task == current,
> >   we can't use task->signal or task->mm.
> >
> > - it doesn't make sense unless task == current, the task can
> >   fork right after the check.
> >
> > Rename it to is_current_single_threaded() and kill the argument.
>
> It would be more natural to put the current first, as in
> current_is_single_threaded().  That would also fit with the various
> other current_* helpers we have.

Agreed, re-sending.

Oleg.

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