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From: Ted Ts'o <tytso@mit.edu>
To: Zach Brown <zab@zabbo.net>
Cc: Dave Kleikamp <dave.kleikamp@oracle.com>, linux-fsdevel@vger.kernel.org
Subject: Use case for "loop: Issue O_DIRECT aio with pages"?
Date: Thu, 1 Mar 2012 18:15:24 -0500	[thread overview]
Message-ID: <20120301231524.GG32588@thunk.org> (raw)

> >My latest focus is on completing the work started on by Zach Brown to
> >add a kernel interface to allow kernel code to submit aio, and having
> >the loop device submit direct IO requests to the underlying file system.

So I've been taking a lot at your patch series, and one of the things
which would help me understand the requirements behind what you are
doing is *why* is it interesting to allow kernel code to submit aio
requests, and loop devices to be able to direct I/O requests all the
way to the underlying file systems.  In other words, what's the use
case that you're most interested in that these patches would enable?

Thanks, regards,

						- Ted

             reply	other threads:[~2012-03-01 23:15 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-01 23:15 Ted Ts'o [this message]
2012-03-02  2:49 ` Use case for "loop: Issue O_DIRECT aio with pages"? Zach Brown
2012-03-02  8:14   ` Ted Ts'o
2012-03-02 14:52     ` Zach Brown
2012-03-02  7:29 ` Christoph Hellwig
2012-03-02 14:14 ` Chris Mason
2012-03-02 20:50   ` James Bottomley

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