Re: [Qemu-devel] [PATCH v3 0/3] -incoming defer

[Stefan Hajnoczi]

On Thu, Feb 19, 2015 at 11:40:26AM +0000, Dr. David Alan Gilbert (git) wrote:
> From: "Dr. David Alan Gilbert" <address@hidden>
> 
> This patchset provides a way of setting options on an incoming
> migration before the fd/process/socket has been created.
> 
>    start qemu with   -incoming defer
>    <use the monitor to set whatever you need>
>    migrate_incoming theuri

Does this patch series break BDRV_O_INCOMING?

blockdev.c:blockdev_init():
  if (runstate_check(RUN_STATE_INMIGRATE)) {
      bdrv_flags |= BDRV_O_INCOMING;
  }

The block layer needs to know about incoming migrations to avoid
accessing or caching disk images while the source host still has them
open.

Stefan

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