linux-kernel - Re: [PATCH V4 00/13] Enable per-file/per-directory DAX operations V4

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Date:   Wed, 26 Feb 2020 18:43:56 -0800
From:   Ira Weiny <ira.weiny@...el.com>
To:     Jeff Moyer <jmoyer@...hat.com>
Cc:     linux-kernel@...r.kernel.org,
        Alexander Viro <viro@...iv.linux.org.uk>,
        "Darrick J. Wong" <darrick.wong@...cle.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Dave Chinner <david@...morbit.com>,
        Christoph Hellwig <hch@....de>,
        "Theodore Y. Ts'o" <tytso@....edu>, Jan Kara <jack@...e.cz>,
        linux-ext4@...r.kernel.org, linux-xfs@...r.kernel.org,
        linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH V4 00/13] Enable per-file/per-directory DAX operations V4

On Wed, Feb 26, 2020 at 05:48:38PM -0500, Jeff Moyer wrote:
> Hi, Ira,
> 
> ira.weiny@...el.com writes:
> 
> > From: Ira Weiny <ira.weiny@...el.com>
> >
> > https://github.com/weiny2/linux-kernel/pull/new/dax-file-state-change-v4
> >
> > Changes from V3: 
> > https://lore.kernel.org/lkml/20200208193445.27421-1-ira.weiny@intel.com/
> >
> > 	* Remove global locking...  :-D
> > 	* put back per inode locking and remove pre-mature optimizations
> > 	* Fix issues with Directories having IS_DAX() set
> > 	* Fix kernel crash issues reported by Jeff
> > 	* Add some clean up patches
> > 	* Consolidate diflags to iflags functions
> > 	* Update/add documentation
> > 	* Reorder/rename patches quite a bit
> 
> I left out patches 1 and 2, but applied the rest and tested.  This
> passes xfs tests in the following configurations:
> 1) MKFS_OPTIONS="-m reflink=0" MOUNT_OPTIONS="-o dax"
> 2) MKFS_OPTIONS="-m reflink=0"
>    but with the added configuration step of setting the dax attribute on
>    the mounted test directory.
> 
> I also tested to ensure that reflink fails when a file has the dax
> attribute set.  I've got more testing to do, but figured I'd at least
> let you know I've been looking at it.

Thank you!

I need to update my xfstest which is specific to this as well...  I'll get to
that tomorrow and send an updated patch...

Thanks!
Ira

> 
> Thanks!
> Jeff
>