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Re: Curious about mount options and Direct IO.

To: Eric Sandeen <sandeen@xxxxxxx>
Subject: Re: Curious about mount options and Direct IO.
From: Austin Gonyou <austin@xxxxxxxxxxxxxxx>
Date: 24 Oct 2002 17:35:30 -0500
Cc: Chris Wedgwood <cw@xxxxxxxx>, linux-xfs@xxxxxxxxxxx
In-reply-to: <1035495844.9368.12.camel@xxxxxxxxxxxxxxxxxxxxxx>
References: <1035495844.9368.12.camel@xxxxxxxxxxxxxxxxxxxxxx>
Sender: linux-xfs-bounce@xxxxxxxxxxx
Kewl Thanks Much! :)

On Thu, 2002-10-24 at 16:44, Eric Sandeen wrote:
> O_DIRECT is not a mount option, you open a file with that flag, and do
> I/O in a prescribed fashion.  You can't "magically" get O_DIRECT
> behavior across a filesystem with just a mount option.
> 
> An old paper on what O_DIRECT is, is at
> http://www.ukuug.org/events/linux2001/papers/html/AArcangeli-o_direct.ht
> ml
> 
> -Eric
> 
> On Thu, 2002-10-24 at 15:10, Austin Gonyou wrote:
> > 
> > I agree, but I guess my question was a general question about XFS's
> > capabilities to actually do anything in a DIO mode.I didn't see any
> > mount options for DirectIO, just osyncisdsync. 
> 
> 
> -- 
> Eric Sandeen      XFS for Linux     http://oss.sgi.com/projects/xfs
> sandeen@xxxxxxx   SGI, Inc.         651-683-3102


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