From: Stefan Hajnoczi <stefanha@gmail.com>
To: Zhi Yong Wu <zwu.kernel@gmail.com>
Cc: kwolf@redhat.com, wuzhy@linux.vnet.ibm.com,
qemu-devel@nongnu.org, stefanha@linux.vnet.ibm.com
Subject: Re: [Qemu-devel] [PATCH v3 2/2] block: disable I/O throttling on sync api
Date: Mon, 2 Apr 2012 08:42:36 +0100 [thread overview]
Message-ID: <20120402074236.GC19273@stefanha-thinkpad.localdomain> (raw)
In-Reply-To: <CAEH94LjFH7nDat_8wHqf005tF8cz3Rprpaj=SEOSh-3i_gV7Rw@mail.gmail.com>
On Sat, Mar 31, 2012 at 08:09:46PM +0800, Zhi Yong Wu wrote:
> On Fri, Mar 30, 2012 at 6:29 PM, Stefan Hajnoczi <stefanha@gmail.com> wrote:
> > On Fri, Mar 30, 2012 at 9:50 AM, <zwu.kernel@gmail.com> wrote:
> >> + * When all sync I/O drivers are converted to async I/O, it will be restored
> >> + * to the original state.
> >
> > The problem here is that guess_disk_lchs() uses bdrv_read(), not
> > whether device emulation uses sync or async I/O. Converting devices
> > to async I/O will not fix this.
> By the way, when you did testing, you applied #1 of this patchset? I
> think that it make sense for that assert issue to be fixed.
Yes, I applied both patches 1 and 2.
Stefan
prev parent reply other threads:[~2012-04-02 8:27 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-30 8:50 [Qemu-devel] [PATCH v3 2/2] block: disable I/O throttling on sync api zwu.kernel
2012-03-30 10:29 ` Stefan Hajnoczi
2012-03-31 12:07 ` Zhi Yong Wu
2012-04-02 7:31 ` Stefan Hajnoczi
2012-03-31 12:09 ` Zhi Yong Wu
2012-04-02 7:42 ` Stefan Hajnoczi [this message]
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