From: Nishanth Aravamudan <nacc@us.ibm.com>
To: Borislav Petkov <petkovbb@googlemail.com>
Cc: "Luck, Tony" <tony.luck@intel.com>, Robin Holt <holt@sgi.com>,
Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>,
"linux-ia64@vger.kernel.org" <linux-ia64@vger.kernel.org>,
"linux-ide@vger.kernel.org" <linux-ide@vger.kernel.org>,
FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>,
axboe@kernel.dk
Subject: Re: kernel unaligned accesses on IA64 in IDE
Date: Fri, 22 Aug 2008 16:02:53 -0700 [thread overview]
Message-ID: <20080822230253.GA27056@us.ibm.com> (raw)
In-Reply-To: <20080822211447.GA7097@gollum.tnic>
On 22.08.2008 [23:14:47 +0200], Borislav Petkov wrote:
> [adding Jens to CC: ]
>
> On Fri, Aug 22, 2008 at 01:36:06PM -0700, Luck, Tony wrote:
> > > How about long instead of int. int leaves us with the possibility that
> > > something else will expect 8 byte alignment.
> >
> :> How about this?
> >
> > Align __cmd to ward off kernel unaligned access consoles messages on
> > ia64 (and perhaps make an almost imperceptible performance improvement
> > on other architectures that can handle unaligned access, but do so
> > more slowly than aligned accesses).
> >
> > Signed-off-by: Tony Luck <tony.luck@intel.com>
>
> Tested-by: Borislav Petkov <petkovbb@gmail.com>
Tested-by: Nishanth Aravamudan <nacc@us.ibm.com>
Thanks,
Nish
--
Nishanth Aravamudan <nacc@us.ibm.com>
IBM Linux Technology Center
next prev parent reply other threads:[~2008-08-22 23:02 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-19 22:56 kernel unaligned accesses on IA64 in IDE Nishanth Aravamudan
2008-08-20 1:39 ` Peter Chubb
2008-08-21 21:28 ` Nishanth Aravamudan
2008-08-20 14:35 ` Robin Holt
2008-08-21 21:31 ` Nishanth Aravamudan
2008-08-21 21:54 ` Robin Holt
2008-08-22 0:39 ` Nishanth Aravamudan
2008-08-22 1:11 ` Robin Holt
2008-08-22 16:45 ` Nishanth Aravamudan
2008-08-22 10:15 ` Bartlomiej Zolnierkiewicz
2008-08-22 10:55 ` Boris Petkov
2008-08-22 16:45 ` Nishanth Aravamudan
2008-08-22 17:29 ` Boris Petkov
2008-08-22 18:36 ` Bartlomiej Zolnierkiewicz
2008-08-22 18:51 ` Luck, Tony
2008-08-22 19:39 ` Robin Holt
2008-08-22 20:36 ` Luck, Tony
2008-08-22 20:41 ` Borislav Petkov
2008-08-22 20:54 ` Borislav Petkov
2008-08-22 21:38 ` Nishanth Aravamudan
2008-08-22 21:49 ` Borislav Petkov
2008-08-22 21:14 ` Borislav Petkov
2008-08-22 23:02 ` Nishanth Aravamudan [this message]
2008-08-22 23:30 ` Luck, Tony
2008-08-22 23:33 ` James Bottomley
2008-08-22 21:15 ` James Bottomley
2008-08-25 16:31 ` Nishanth Aravamudan
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