Re: [PATCH 4/9] btrfs: Switch to iomap_dio_rw() for dio

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On  5:10 07/05, Christoph Hellwig wrote:
> On Thu, May 07, 2020 at 01:37:41PM +0200, David Sterba wrote:
> > On Wed, May 06, 2020 at 11:14:30PM -0700, Christoph Hellwig wrote:
> > > What is the status of this series?  I haven't really seen it posted
> > > any time recently, and it would be sad to miss 5.8..
> > 
> > I've been testing it and reporting to Goldwyn, but there are still
> > problems that don't seem to be fixable for 5.8 target.
> 
> What are the issues, and how can we help to resolve them?

The issue we are facing is with generic/475

The problems is that in case of a device error, there are still remnants in
the inode reservation which causes the WARN_ON() during
btrfs_destroy_inode(). I am trying to figure out the precise conditions
that are causing these remnants in only some of the inodes.

-- 
Goldwyn



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