netdev - Re: [PATCH] atomic: add atomic_inc_not_zero

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Message-ID: <1288986391.2665.157.camel@edumazet-laptop>
Date:	Fri, 05 Nov 2010 20:46:31 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	David Miller <davem@...emloft.net>,
	netdev <netdev@...r.kernel.org>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>, Andi Kleen <andi@...stfloor.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Nick Piggin <npiggin@...nel.dk>
Subject: Re: [PATCH] atomic: add atomic_inc_not_zero_hint()

Le vendredi 05 novembre 2010 à 12:39 -0700, Andrew Morton a écrit :

> Ah.  I wasn't able to see much duplicated code at all, so I wasn't sure
> that we needed to bother about this issue.
> 
> yup, atomic_inc_not_zero() looks like a candidate.

yes, and atomic_add_unless()...

> 
> > [PATCH v3] atomic: add atomic_inc_not_zero_hint()
> 
> Let's go with this for now ;)
> 
> I'll assume that you intend to make use of this function soon, and it
> looks safe enough to sneak it into 2.6.37-rc2, IMO.  If Linus shouts at
> me then we could merge it into 2.6.38-rc1 via net-next, but I think
> straight-to-mainline is best.
> 

Well, I dont expect using it before 2.6.38, no hurry Andrew, but it
probably can be merged before, since it has no user yet. It'll help our
job for sure.

Thanks


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