linux-kernel - Re: [PATCH, RFC] shmat: introduce flag SHM_MAP

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Message-ID: <20081007115052.GI20740@one.firstfloor.org>
Date:	Tue, 7 Oct 2008 13:50:52 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	"Kirill A. Shutemov" <kirill@...temov.name>
Cc:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Andi Kleen <andi@...stfloor.org>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, Ingo Molnar <mingo@...hat.com>,
	Arjan van de Ven <arjan@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH, RFC] shmat: introduce flag SHM_MAP_HINT

On Tue, Oct 07, 2008 at 02:30:51PM +0300, Kirill A. Shutemov wrote:
> On Tue, Oct 07, 2008 at 08:26:03PM +0900, KOSAKI Motohiro wrote:
> > > > Honestly, I don't like that qemu specific feature insert into shmem core.
> > > 
> > > I wouldn't say it's a qemu specific interface.  While qemu would 
> > > be the first user I would expect more in the future. It's a pretty
> > > obvious extension. In fact it nearly should be default, if the
> > > risk of breaking old applications wasn't too high.
> > 
> > hm, ok, i understand your intension.
> > however, I think following code isn't self describing.
> > 
> > 	addr = shmat(shmid, addr, SHM_MAP_HINT);
> > 
> > because HINT is too generic word.
> > I think we should find better word.
> > 
> > SHM_MAP_NO_FIXED ?
> 
> I like it.
> Andi?

SHM_MAP_NOT_FIXED perhaps.

I personally would call it SHM_MAP_SEARCH_HINT

But to be honest I have no strong opinion on the naming. Perhaps others have.

-Andi
-- 
ak@...ux.intel.com
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