tree 73e5eb9cd38b7c4dd53fadc696ad4f34a1f318af
parent 7b272452398135e4f8e48341239705d03c82dae3
author Kevin Wolf <kwolf@redhat.com> 1352738127 +0100
committer Kevin Wolf <kwolf@redhat.com> 1355220265 +0100

block: Avoid second open for format probing

This fixes problems that are caused by the additional open/close cycle
of the existing format probing, for example related to qemu-nbd without
-t option or file descriptor passing.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>