linux-kernel - Re: [PATCH 2/7] xfs: validate bdev support for DAX inode flag

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Message-ID: <20170926063650.GE6870@lst.de>
Date:   Tue, 26 Sep 2017 08:36:50 +0200
From:   Christoph Hellwig <hch@....de>
To:     Ross Zwisler <ross.zwisler@...ux.intel.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org,
        "Darrick J. Wong" <darrick.wong@...cle.com>,
        "J. Bruce Fields" <bfields@...ldses.org>,
        Christoph Hellwig <hch@....de>,
        Dan Williams <dan.j.williams@...el.com>,
        Dave Chinner <david@...morbit.com>, Jan Kara <jack@...e.cz>,
        Jeff Layton <jlayton@...chiereds.net>,
        linux-fsdevel@...r.kernel.org, linux-mm@...ck.org,
        linux-nvdimm@...ts.01.org, linux-xfs@...r.kernel.org
Subject: Re: [PATCH 2/7] xfs: validate bdev support for DAX inode flag

On Mon, Sep 25, 2017 at 05:13:59PM -0600, Ross Zwisler wrote:
> Currently only the blocksize is checked, but we should really be calling
> bdev_dax_supported() which also tests to make sure we can get a
> struct dax_device and that the dax_direct_access() path is working.
> 
> This is the same check that we do for the "-o dax" mount option in
> xfs_fs_fill_super().
> 
> Signed-off-by: Ross Zwisler <ross.zwisler@...ux.intel.com>
> Reviewed-by: Christoph Hellwig <hch@....de>

I think we just want to pick this up ASAP.  And between my vague
memoried and that reviewed-by tag it already was part of a different
series, wasn't it?