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Message-ID: <20200114163818.GB7127@infradead.org>
Date: Tue, 14 Jan 2020 08:38:18 -0800
From: Christoph Hellwig <hch@...radead.org>
To: Jan Kara <jack@...e.cz>
Cc: "Darrick J. Wong" <darrick.wong@...cle.com>,
Ritesh Harjani <riteshh@...ux.ibm.com>,
linux-ext4@...r.kernel.org, tytso@....edu
Subject: Re: [RFC 1/2] iomap: direct-io: Move inode_dio_begin before
filemap_write_and_wait_range
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.
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