From: Paolo Bonzini <pbonzini@redhat.com>
To: zwu.kernel@gmail.com
Cc: kwolf@redhat.com, Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>,
qemu-devel@nongnu.org, stefanha@linux.vnet.ibm.com
Subject: Re: [Qemu-devel] [PATCH v3 1/2] block: add the support to drain throttled requests
Date: Mon, 12 Mar 2012 16:05:18 +0100 [thread overview]
Message-ID: <4F5E10AE.9010409@redhat.com> (raw)
In-Reply-To: <1331564005-31070-1-git-send-email-zwu.kernel@gmail.com>
Il 12/03/2012 15:53, zwu.kernel@gmail.com ha scritto:
> - qemu_aio_flush();
> + QTAILQ_FOREACH(bs, &bdrv_states, list) {
> + do {
> + qemu_co_queue_restart_all(&bs->throttled_reqs);
> + qemu_aio_flush();
> + } while (!qemu_co_queue_empty(&bs->throttled_reqs));
> + }
Even this is not enough. Block device 2 could start a throttled request
on block device 1. I'm sending a related series, I'll include yours in
mine.
Paolo
next prev parent reply other threads:[~2012-03-12 15:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-12 14:53 [Qemu-devel] [PATCH v3 1/2] block: add the support to drain throttled requests zwu.kernel
2012-03-12 15:05 ` Paolo Bonzini [this message]
2012-03-12 15:25 ` Zhi Yong Wu
2012-03-12 15:30 ` Paolo Bonzini
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