From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: Christoph Hellwig <hch@lst.de>,
"Darrick J. Wong" <darrick.wong@oracle.com>,
linux-fsdevel <linux-fsdevel@vger.kernel.org>
Subject: Re: [PATCH RFC] iomap: only return IO error if no data has been transferred
Date: Wed, 18 Nov 2020 08:09:54 +0100 [thread overview]
Message-ID: <20201118070954.GA17326@lst.de> (raw)
In-Reply-To: <2a56ae95-b64e-f20f-8875-62a2f2e8e00f@kernel.dk>
On Tue, Nov 17, 2020 at 03:17:18PM -0700, Jens Axboe wrote:
> If we've successfully transferred some data in __iomap_dio_rw(),
> don't mark an error for a latter segment in the dio.
For normal direct I/O we never return short reads/writes, and IIRC that
has been inherited from the old direct I/O code. I think we'll need
to make this conditional on your nowait case rather than changing the
user visible behavior.
next prev parent reply other threads:[~2020-11-18 7:09 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-17 22:17 [PATCH RFC] iomap: only return IO error if no data has been transferred Jens Axboe
2020-11-18 7:09 ` Christoph Hellwig [this message]
2020-11-18 7:19 ` Dave Chinner
2020-11-18 7:55 ` Dave Chinner
2020-11-18 15:26 ` Jens Axboe
2020-11-18 20:37 ` Dave Chinner
2020-11-18 21:00 ` Jens Axboe
2020-11-18 21:15 ` Dave Chinner
2020-11-18 21:19 ` Jens Axboe
2020-11-18 21:33 ` Dave Chinner
2020-11-18 21:36 ` Jens Axboe
2020-11-18 21:48 ` Dave Chinner
2020-11-18 21:55 ` Jens Axboe
2020-11-18 22:21 ` Dave Chinner
2020-11-26 14:00 ` [iomap] b258228a4e: Assertion_failed kernel test robot
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