From: Andrew Morton <akpm@linux-foundation.org>
To: Christoph Lameter <clameter@sgi.com>
Cc: linux-mm@kvack.org, Pekka Enberg <penberg@cs.helsinki.fi>
Subject: Re: SLUB: Use ilog2 instead of series of constant comparisons.
Date: Wed, 6 Jun 2007 10:08:17 -0700 [thread overview]
Message-ID: <20070606100817.7af24b74.akpm@linux-foundation.org> (raw)
In-Reply-To: <Pine.LNX.4.64.0705211250410.27950@schroedinger.engr.sgi.com>
On Mon, 21 May 2007 12:51:47 -0700 (PDT) Christoph Lameter <clameter@sgi.com> wrote:
> I finally found a way to get rid of the nasty list of comparisions in
> slub_def.h. ilog2 seems to work right for constants.
This caused test.kernel.org's power4 build to blow up:
http://test.kernel.org/abat/93315/debug/test.log.0
fs/built-in.o(.text+0x148420): In function `.CalcNTLMv2_partial_mac_key':
: undefined reference to `.____ilog2_NaN'
it doesn't happen on my power4 toolchain so I expect it's some artifact
due to test.k.o's tendency to use crufty old toolchains.
arguably it's a bug in ilog2, dunno.
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next prev parent reply other threads:[~2007-06-06 17:08 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-21 19:51 Christoph Lameter
2007-05-22 8:45 ` Pekka Enberg
2007-06-06 17:08 ` Andrew Morton [this message]
2007-06-06 18:36 ` Christoph Lameter
2007-06-06 20:11 ` Andrew Morton
2007-06-06 20:28 ` Christoph Lameter
2007-06-06 20:34 ` Andrew Morton
2007-06-06 20:41 ` Martin Bligh
2007-06-06 20:52 ` Christoph Lameter
2007-06-06 23:19 ` Andrew Morton
2007-06-06 23:50 ` Christoph Lameter
2007-06-07 0:01 ` Nish Aravamudan
2007-06-07 3:49 ` Christoph Lameter
2007-06-06 23:31 ` Nish Aravamudan
2007-06-07 7:40 ` Andy Whitcroft
2007-06-06 20:43 ` Christoph Lameter
2007-06-06 20:29 ` Nish Aravamudan
2007-06-07 7:48 ` Andy Whitcroft
2007-06-07 7:58 ` Andy Whitcroft
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