On 05/23/2016 10:55 AM, Kevin Wolf wrote: > Until now, bdrv_drained_begin() used bdrv_drain() internally to drain > the queue. This is kind of backwards and caused quiescing code to be > duplicated because bdrv_drained_begin() had to ensure that no new > requests come in even after bdrv_drain() returns, whereas bdrv_drain() > had to have them because it could be called from other places. > > Instead move the bdrv_drain() code to bdrv_drained_begin() and make > bdrv_drain() a simple wrapper around bdrv_drained_begin/end(). > > Signed-off-by: Kevin Wolf <kw...@redhat.com> > --- > block/io.c | 69 > ++++++++++++++++++++++++++++++-------------------------------- > 1 file changed, 33 insertions(+), 36 deletions(-) >
Reviewed-by: Eric Blake <ebl...@redhat.com> -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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