From: Paolo Bonzini <pbonzini@redhat.com>
To: Kevin Wolf <kwolf@redhat.com>
Cc: Anthony Liguori <aliguori@us.ibm.com>,
pingfank@linux.vnet.ibm.com, qemu-devel@nongnu.org,
Stefan Hajnoczi <stefanha@redhat.com>
Subject: Re: [Qemu-devel] [RFC 00/13] aio: drop io_flush()
Date: Fri, 12 Apr 2013 12:27:05 +0200 [thread overview]
Message-ID: <5167E179.4030202@redhat.com> (raw)
In-Reply-To: <20130412100401.GD3426@dhcp-200-207.str.redhat.com>
Il 12/04/2013 12:04, Kevin Wolf ha scritto:
> Or actually, if you want to avoid .bdrv_drain for now, the patch that I
> started when I thought a bit about this, had a default .bdrv_drain
> implementation that just forwarded the request to bs->file if it wasn't
> implemented by a block driver. For the QED case, this would work.
It's similar to bdrv_co_flush. Drain bs first, then bs->backing_hd
(this is not needed in bdrv_co_flush), then bs->file, then the driver
can do it on other files.
Paolo
next prev parent reply other threads:[~2013-04-12 10:27 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-11 15:44 [Qemu-devel] [RFC 00/13] aio: drop io_flush() Stefan Hajnoczi
2013-04-11 15:44 ` [Qemu-devel] [RFC 01/13] block: stop relying on io_flush() in bdrv_drain_all() Stefan Hajnoczi
2013-04-11 15:44 ` [Qemu-devel] [RFC 02/13] dataplane/virtio-blk: check exit conditions before aio_poll() Stefan Hajnoczi
2013-04-11 15:44 ` [Qemu-devel] [RFC 03/13] aio: stop using .io_flush() Stefan Hajnoczi
2013-04-11 15:44 ` [Qemu-devel] [RFC 04/13] block/curl: drop curl_aio_flush() Stefan Hajnoczi
2013-04-11 15:44 ` [Qemu-devel] [RFC 05/13] block/gluster: drop qemu_gluster_aio_flush_cb() Stefan Hajnoczi
2013-04-11 15:44 ` [Qemu-devel] [RFC 06/13] block/iscsi: drop iscsi_process_flush() Stefan Hajnoczi
2013-04-11 15:44 ` [Qemu-devel] [RFC 07/13] block/linux-aio: drop qemu_laio_completion_cb() Stefan Hajnoczi
2013-04-11 15:44 ` [Qemu-devel] [RFC 08/13] block/nbd: drop nbd_have_request() Stefan Hajnoczi
2013-04-11 15:44 ` [Qemu-devel] [RFC 09/13] block/rbd: drop qemu_rbd_aio_flush_cb() Stefan Hajnoczi
2013-04-11 15:44 ` [Qemu-devel] [RFC 10/13] block/sheepdog: drop have_co_req() and aio_flush_request() Stefan Hajnoczi
2013-04-11 15:44 ` [Qemu-devel] [RFC 11/13] dataplane/virtio-blk: drop flush_true() and flush_io() Stefan Hajnoczi
2013-04-11 15:44 ` [Qemu-devel] [RFC 12/13] thread-pool: drop thread_pool_active() Stefan Hajnoczi
2013-04-11 15:44 ` [Qemu-devel] [RFC 13/13] aio: drop io_flush argument Stefan Hajnoczi
2013-04-12 8:02 ` [Qemu-devel] [RFC 00/13] aio: drop io_flush() Kevin Wolf
2013-04-12 9:49 ` Stefan Hajnoczi
2013-04-12 10:04 ` Kevin Wolf
2013-04-12 10:27 ` Paolo Bonzini [this message]
2013-04-12 12:06 ` Stefan Hajnoczi
2013-04-12 12:22 ` Kevin Wolf
2013-04-12 13:41 ` Stefan Hajnoczi
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