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RE: TAKE 934766 - Delay direct I/O completion to a workqueue

To: "'Christoph Hellwig'" <hch@xxxxxxxxxxxxxxxxxxxxxx>
Subject: RE: TAKE 934766 - Delay direct I/O completion to a workqueue
From: "Al Boldi" <a1426z@xxxxxxxxx>
Date: Wed, 3 Aug 2005 17:31:58 +0300
Cc: <linux-xfs@xxxxxxxxxxx>, <sgi.bugs.xfs@xxxxxxxxxxxxxxxxx>
In-reply-to: <200508031058.j73AwZFZ027123@xxxxxxxxxxxxxxxxxxxxxx>
Sender: linux-xfs-bounce@xxxxxxxxxxx
Thread-index: AcWYsBEwS8fzlusCS/66hgRw2QhNkgAeKvuQ
Will this affect XFS behaviour with regards to the non-existent
Ordered-Mode?

-----Original Message-----
From: linux-xfs-bounce@xxxxxxxxxxx [mailto:linux-xfs-bounce@xxxxxxxxxxx] On
Behalf Of Christoph Hellwig
Sent: Wednesday, August 03, 2005 1:59 PM
To: linux-xfs@xxxxxxxxxxx; sgi.bugs.xfs@xxxxxxxxxxxxxxxxx
Subject: TAKE 934766 - Delay direct I/O completion to a workqueue

This is nessecary because aio+dio completions may happen from irq context
but we need process context for converting unwritten extents.

We also queue regular direct I/O completions to workqueue for regularity,
there's only one queue_work call per syscall.



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