From: Christoph Hellwig <hch@infradead.org>
To: Avi Kivity <avi@scylladb.com>
Cc: Christoph Hellwig <hch@infradead.org>,
Brian Foster <bfoster@redhat.com>,
Tomasz Grabiec <tgrabiec@scylladb.com>,
linux-xfs@vger.kernel.org
Subject: Re: io_submit() blocks for writes for substantial amount of time
Date: Tue, 19 Sep 2017 13:34:03 -0700 [thread overview]
Message-ID: <20170919203403.GA731@infradead.org> (raw)
In-Reply-To: <04cb3ee7-e7d5-6bba-6adb-8ac1c28e68dc@scylladb.com>
On Tue, Sep 19, 2017 at 07:31:04PM +0300, Avi Kivity wrote:
> For DIO, does it really need the mm_struct? It can just pin the pages and
> pass them to the workqueue function.
We can't pin all the pages for a huge I/O at the same time.
next prev parent reply other threads:[~2017-09-19 20:34 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-19 8:50 io_submit() blocks for writes for substantial amount of time Tomasz Grabiec
2017-09-19 12:27 ` Brian Foster
2017-09-19 14:58 ` Christoph Hellwig
2017-09-19 16:31 ` Avi Kivity
2017-09-19 17:39 ` Brian Foster
2017-09-19 20:34 ` Christoph Hellwig
2017-09-20 6:17 ` Avi Kivity
2017-09-20 10:50 ` Brian Foster
2017-09-20 11:11 ` Avi Kivity
2017-09-20 14:49 ` Christoph Hellwig
2017-09-23 18:23 ` Avi Kivity
2017-09-19 20:34 ` Christoph Hellwig [this message]
2017-09-20 6:14 ` Avi Kivity
2017-09-19 16:29 ` Avi Kivity
2017-09-19 17:38 ` Brian Foster
2017-09-19 17:53 ` Tomasz Grabiec
2017-09-19 23:38 ` Dave Chinner
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