From: Andi Kleen <ak@suse.de>
To: Daniel McNeil <daniel@osdl.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [rfc patch 2/2] direct-io: remove address alignment check
Date: 14 Jul 2005 15:18:11 +0200 [thread overview]
Message-ID: <p73hdex5xws.fsf@bragg.suse.de> (raw)
In-Reply-To: <1121298112.6025.21.camel@ibm-c.pdx.osdl.net.suse.lists.linux.kernel>
Daniel McNeil <daniel@osdl.org> writes:
> This patch relaxes the direct i/o alignment check so that user addresses
> do not have to be a multiple of the device block size.
The original reason for this limit was that lots of drivers
(not only IDE) explode when you give them odd sizes. Sometimes
it is even worse.
I doubt all of them have been fixed.
Very risky change.
-Andi
next parent reply other threads:[~2005-07-14 13:18 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1121298112.6025.21.camel@ibm-c.pdx.osdl.net.suse.lists.linux.kernel>
2005-07-14 13:18 ` Andi Kleen [this message]
2005-07-14 16:02 ` [rfc patch 2/2] direct-io: remove address alignment check Daniel McNeil
2005-07-14 18:23 ` Andi Kleen
2005-07-14 20:40 ` Daniel McNeil
2005-07-14 23:39 ` Andrew Morton
2005-07-15 0:03 ` Daniel McNeil
2005-07-13 23:43 Daniel McNeil
2005-07-14 23:16 ` Badari Pulavarty
2005-07-14 23:44 ` Daniel McNeil
2005-07-15 5:27 ` Badari Pulavarty
2005-07-15 20:06 ` Daniel McNeil
2005-07-15 0:28 ` Tejun Heo
2005-07-15 5:18 ` Badari Pulavarty
2005-07-15 8:23 ` Tejun Heo
2005-07-15 17:54 ` Badari Pulavarty
2005-07-16 3:50 ` Tejun Heo
2005-07-15 16:56 ` Joel Becker
2005-07-15 17:50 ` Badari Pulavarty
2005-07-15 19:16 ` Joel Becker
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