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Re: [PATCH 0/5] xfs: fix direct IO completion issues

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: [PATCH 0/5] xfs: fix direct IO completion issues
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Sun, 12 Apr 2015 08:09:32 -0700
Cc: xfs@xxxxxxxxxxx
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <1428673080-23052-1-git-send-email-david@xxxxxxxxxxxxx>
References: <1428673080-23052-1-git-send-email-david@xxxxxxxxxxxxx>
User-agent: Mutt/1.5.23 (2014-03-12)
On Fri, Apr 10, 2015 at 11:37:55PM +1000, Dave Chinner wrote:
> Hi folks,
> 
> This patchset addresses the deeper problems Brian outlined in the
> description of this patch:
> 
> http://oss.sgi.com/archives/xfs/2015-04/msg00071.html
> 
> The basic issues is that DIO completion can run in interrupt context
> and it does things it should not do in interrupt context because Bad
> Things Will Happen.

Where do we complete DIO writes from irq context?  Since my direct-io.c
changes from a few years ago that should not be the case.

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