linux-kernel - Re: GFP_ATOMIC page allocation failures.

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Message-Id: <20080402014317.7634515f.akpm@linux-foundation.org>
Date:	Wed, 2 Apr 2008 01:43:17 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	David Miller <davem@...emloft.net>
Cc:	kosaki.motohiro@...fujitsu.com, csnook@...hat.com,
	davej@...emonkey.org.uk, nickpiggin@...oo.com.au,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: GFP_ATOMIC page allocation failures.

On Wed, 02 Apr 2008 01:24:06 -0700 (PDT) David Miller <davem@...emloft.net> wrote:

> From: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
> Date: Wed, 02 Apr 2008 17:17:50 +0900
> 
> > if network guys hope known-good driver should call 
> > __netdev_alloc_skb(dev, length, GFP_ATOMIC|__GFP_NOWARN) instead netdev_alloc_skb,
> > I think we should make netdev_alloc_skb_nowarn.
> 
> Giving it a proper name like this takes away the indication that this
> situation is very special.
> 
> Two leading underscores to an interface means "something special and
> unusual requiring more careful consideration than usual is occuring
> here."  netdev_alloc_skb_nowarn() on the other hand, does not
> convey this meaning.
> 
> And we will have very few drivers that use this construct, thus it
> really is best to handle things the way Andrew has.

Oh.  I just went and redid thing the other way.  Picked the same name too.

Whatever.
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