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authorSam Eiderman <shmuel.eiderman@oracle.com>2019-05-23 19:33:37 +0300
committerMax Reitz <mreitz@redhat.com>2019-05-28 20:30:55 +0200
commit330c72957196e0ae382abcaa97ebf4eb9bc8574f (patch)
treec6f6d6855154ae8a323f101560506586b922239f /block/qcow2.c
parent863cc78f1b38e926a1ac71348aaba0f6777660ff (diff)
qemu-img: rebase: Reuse in-chain BlockDriverState
If a chain was detected, don't open a new BlockBackend from the target backing file which will create a new BlockDriverState. Instead, create an empty BlockBackend and attach the already open BlockDriverState. Permissions for blk_new() were copied from blk_new_open() when flags = 0. Reviewed-by: Karl Heubaum <karl.heubaum@oracle.com> Reviewed-by: Eyal Moscovici <eyal.moscovici@oracle.com> Signed-off-by: Sagi Amit <sagi.amit@oracle.com> Co-developed-by: Sagi Amit <sagi.amit@oracle.com> Signed-off-by: Sam Eiderman <shmuel.eiderman@oracle.com> Message-id: 20190523163337.4497-4-shmuel.eiderman@oracle.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'block/qcow2.c')
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