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Date:   Tue, 14 Jan 2020 08:38:18 -0800
From:   Christoph Hellwig <hch@infradead.org>
To:     Jan Kara <jack@suse.cz>
Cc:     "Darrick J. Wong" <darrick.wong@oracle.com>,
        Ritesh Harjani <riteshh@linux.ibm.com>,
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Subject: Re: [RFC 1/2] iomap: direct-io: Move inode_dio_begin before
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On Tue, Jan 14, 2020 at 10:05:07AM +0100, Jan Kara wrote:
> 
> Well, XFS always performs buffered writeback using unwritten extents so at
> least the immediate problem of stale data exposure ext4 has does not happen
> there AFAICT. 

Currently XFS never uses unwritten extents when converting delalloc
extents.