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From: Christoph Hellwig <hch@infradead.org>
To: Goldwyn Rodrigues <rgoldwyn@suse.de>
Cc: linux-fsdevel@vger.kernel.org, hch@infradead.org,
	darrick.wong@oracle.com, Goldwyn Rodrigues <rgoldwyn@suse.com>
Subject: Re: [PATCH] iomap: return partial I/O count on error in direct I/O
Date: Mon, 17 Feb 2020 05:17:52 -0800	[thread overview]
Message-ID: <20200217131752.GA14490@infradead.org> (raw)
In-Reply-To: <20200213192503.17267-1-rgoldwyn@suse.de>

On Thu, Feb 13, 2020 at 01:25:03PM -0600, Goldwyn Rodrigues wrote:
> From: Goldwyn Rodrigues <rgoldwyn@suse.com>
> 
> In case of a block device error, iomap code returns 0 as opposed to
> the amount of submitted I/O, which may have completed before the
> error occurred. Return the count of submitted I/O for correct
> accounting.

Haven't we traditionally failed direct I/O syscalls that don't fully
complete and never supported short writes (or reads)?

  reply	other threads:[~2020-02-17 13:17 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-13 19:25 [PATCH] iomap: return partial I/O count on error in direct I/O Goldwyn Rodrigues
2020-02-17 13:17 ` Christoph Hellwig [this message]
2020-02-17 13:44   ` Goldwyn Rodrigues
2020-02-17 14:02     ` Christoph Hellwig
2020-02-19 20:31       ` Goldwyn Rodrigues

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