Kevin Wolf <kw...@redhat.com> wrote: > Am 11.09.2010 16:04, schrieb Anthony Liguori:
> There is a simple generic implementation: > > drv = bs->drv; > drv->close(bs); > drv->open(bs, bs->open_flags); > > Note that this only reopens e.g. the qcow2 layer, but not the image > file, which is bs->file. > > This works for all simple case, that is, one format on top of one or > more protocols, where the protocols don't need invalidation. I think > this includes everything that is possible today. With -blockdev we might > need to revise this to include the lower layers, too. (But only > sometimes, because we don't want to reopen the file) we require it for nfs consistency. We need to: source: fsync() target: open() (after the fsync). About your 1st comment, I am doing: bdrv_close(bdrv); bdrv_open(bdrv); Do you mean that this don't close and open again the file with qcow2? Later, Juan.
