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From: Christoph Hellwig <hch@lst.de>
To: Dave Chinner <david@fromorbit.com>
Cc: "Darrick J. Wong" <darrick.wong@oracle.com>,
	Matthew Wilcox <willy@infradead.org>,
	Christoph Hellwig <hch@lst.de>,
	Goldwyn Rodrigues <rgoldwyn@suse.de>,
	linux-fsdevel@vger.kernel.org, linux-btrfs@vger.kernel.org,
	fdmanana@gmail.com, dsterba@suse.cz, cluster-devel@redhat.com,
	linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org
Subject: Re: always fall back to buffered I/O after invalidation failures, was: Re: [PATCH 2/6] iomap: IOMAP_DIO_RWF_NO_STALE_PAGECACHE return if page invalidation fails
Date: Fri, 10 Jul 2020 18:03:37 +0200	[thread overview]
Message-ID: <20200710160337.GA21808@lst.de> (raw)
In-Reply-To: <20200709225936.GZ2005@dread.disaster.area>

This looks sane - slightly updated version below to not bother with
the ret and a few tidyups.

That being said and to get back to the discussion in this thread:
I think it would be saner to give up on direct I/O in case of the
invalidation failure.  I've cooked up a patch on top of this one
(for which I had a few trivial cleanups).  It is still under testing,
but I'll send the two out in a new thread.

  reply	other threads:[~2020-07-10 16:03 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200629192353.20841-1-rgoldwyn@suse.de>
     [not found] ` <20200629192353.20841-3-rgoldwyn@suse.de>
2020-07-01  7:53   ` always fall back to buffered I/O after invalidation failures, was: Re: [PATCH 2/6] iomap: IOMAP_DIO_RWF_NO_STALE_PAGECACHE return if page invalidation fails Christoph Hellwig
2020-07-07 12:43     ` Goldwyn Rodrigues
2020-07-07 12:57       ` Matthew Wilcox
2020-07-07 13:00         ` Christoph Hellwig
2020-07-08  6:51           ` Dave Chinner
2020-07-08 13:54             ` Matthew Wilcox
2020-07-08 16:54               ` Christoph Hellwig
2020-07-08 17:11                 ` Matthew Wilcox
2020-07-09  8:26                 ` [Cluster-devel] " Steven Whitehouse
2020-07-09  2:25               ` Dave Chinner
2020-07-09 16:09                 ` Darrick J. Wong
2020-07-09 17:05                   ` Matthew Wilcox
2020-07-09 17:10                     ` Darrick J. Wong
2020-07-09 22:59                       ` Dave Chinner
2020-07-10 16:03                         ` Christoph Hellwig [this message]
2020-07-12 11:36                 ` Avi Kivity
2020-07-07 13:49         ` Goldwyn Rodrigues
2020-07-07 14:01           ` Darrick J. Wong
2020-07-07 14:30             ` Goldwyn Rodrigues

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