From: Andrew Morton <akpm@linux-foundation.org>
To: Christoph Lameter <cl@linux.com>
Cc: gorcunov@gmail.com, mingo@elte.hu, mel@csn.ul.ie,
linux-kernel@vger.kernel.org, penberg@cs.helsinki.fi,
riel@redhat.com, rientjes@google.com, xemul@openvz.org
Subject: Re: [PATCH -tip] mm: introduce __GFP_PANIC modifier
Date: Mon, 4 May 2009 11:53:35 -0700 [thread overview]
Message-ID: <20090504115335.9bc08587.akpm@linux-foundation.org> (raw)
In-Reply-To: <alpine.DEB.1.10.0905040940490.9553@qirst.com>
On Mon, 4 May 2009 09:47:45 -0400 (EDT)
Christoph Lameter <cl@linux.com> wrote:
>
>
> Could you try to avoid consuming another GFP flag? __GFP_BITS_SHIFT is
> used elsewhere to figure out where to put miscellanous flags into the gfp
> mask. This is pretty limited right now and so the patch does work.
hm, yes, there are seven bits left.
afaict bit 3 (0x08) is unused?
Is __GFP_PANIC very useful? I expect it will permit a very small code
saving at a relatively small number of callsites, all of which are
__init anyway?
next prev parent reply other threads:[~2009-05-04 19:02 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-04 12:27 [PATCH -tip] mm: introduce __GFP_PANIC modifier Cyrill Gorcunov
2009-05-04 13:13 ` Ingo Molnar
2009-05-04 13:16 ` Cyrill Gorcunov
2009-05-04 13:47 ` Christoph Lameter
2009-05-04 14:12 ` Cyrill Gorcunov
2009-05-04 14:13 ` Christoph Lameter
2009-05-04 14:29 ` Cyrill Gorcunov
2009-05-04 15:20 ` Cyrill Gorcunov
2009-05-04 15:54 ` Christoph Lameter
2009-05-04 16:11 ` Cyrill Gorcunov
2009-05-04 19:11 ` Cyrill Gorcunov
2009-05-04 18:53 ` Andrew Morton [this message]
2009-05-04 19:21 ` Cyrill Gorcunov
2009-05-04 19:34 ` Andrew Morton
2009-05-04 20:09 ` Cyrill Gorcunov
2009-05-08 12:57 ` [RFC/PATCH v2] mm: Introduce GFP_PANIC for non-failing allocations Pekka Enberg
2009-05-08 13:37 ` Cyrill Gorcunov
2009-05-08 13:50 ` Pekka Enberg
2009-05-08 14:17 ` Christoph Lameter
2009-05-08 14:20 ` Christoph Lameter
2009-05-08 14:23 ` Pekka Enberg
2009-05-08 14:29 ` Christoph Lameter
2009-05-08 14:34 ` Pekka Enberg
2009-05-08 14:37 ` Rik van Riel
2009-05-08 14:39 ` Pekka Enberg
2009-05-08 14:43 ` Christoph Lameter
2009-05-04 19:23 ` [PATCH -tip] mm: introduce __GFP_PANIC modifier Mel Gorman
2009-05-04 19:35 ` Cyrill Gorcunov
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