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Re: [Qemu-devel] Re: [PATCH 0/2] v8 Decouple block device removal from d
From: |
Luiz Capitulino |
Subject: |
Re: [Qemu-devel] Re: [PATCH 0/2] v8 Decouple block device removal from device removal |
Date: |
Tue, 16 Nov 2010 11:51:22 -0200 |
On Fri, 12 Nov 2010 18:38:57 +0100
Kevin Wolf <address@hidden> wrote:
> Am 12.11.2010 18:07, schrieb Ryan Harper:
> > details, details, v8
> >
> > This patch series decouples the detachment of a block device from the
> > removal of the backing pci-device. Removal of a hotplugged pci device
> > requires the guest to respond before qemu tears down the block device.
> > In some cases, the guest may not respond leaving the guest with
> > continued access to the block device. Mgmt layer doesn't have a
> > reliable method to force a disconnect.
> >
> > The new monitor command, drive_del, will revoke a guests access to the
> > block device independently of the removal of the pci device.
> >
> > The first patch implements drive_del, the second patch implements the
> > qmp version of the monitor command.
> >
> > Changes since v7:
> > - Fixed up doc strings (delete -> drive_del)
> > Changes since v6:
> > - Updated patch description
> > - Dropped bdrv_unplug and inlined in drive_del
> > - Explicitly invoke drive_uninit()
> > Changes since v5:
> > - Removed dangling pointers in guest and host state. This ensures things
> > like
> > info block no longer displays the deleted drive; though info pci will
> > continue to display the pci device until the guest responds to the removal
> > request.
> > - Renamed drive_unplug -> drive_del
> > Changes since v4:
> > - Droppped drive_get_by_id patch and use bdrv_find() instead
> > - Added additional details about drive_unplug to hmp/qmp interface
> >
> > Changes since v3:
> > - Moved QMP command for drive_unplug() to separate patch
> >
> > Changes since v2:
> > - Added QMP command for drive_unplug()
> >
> > Changes since v1:
> > - CodingStyle fixes
> > - Added qemu_aio_flush() to bdrv_unplug()
> >
> > Signed-off-by: Ryan Harper <address@hidden>
>
> Thanks, applied both to the block branch.
I guess the conclusion was that we don't want the new command
in QMP?
http://lists.gnu.org/archive/html/qemu-devel/2010-11/msg01084.html