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/openbmc/qemu/include/block/
H A Dblock.hdiff 54a32bfec140e03ebb19863db944b1c81e4df25e Thu Aug 03 10:02:58 CDT 2017 Kevin Wolf <kwolf@redhat.com> block: Allow reopen rw without BDRV_O_ALLOW_RDWR

BDRV_O_ALLOW_RDWR is a flag that tells whether qemu can internally
reopen a node read-write temporarily because the user requested
read-write for the top-level image, but qemu decided that read-only is
enough for this node (a backing file).

bdrv_reopen() is different, it is also used for cases where the user
changed their mind and wants to update the options. There is no reason
to forbid making a node read-write in that case.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
/openbmc/qemu/
H A Dblock.cdiff 54a32bfec140e03ebb19863db944b1c81e4df25e Thu Aug 03 10:02:58 CDT 2017 Kevin Wolf <kwolf@redhat.com> block: Allow reopen rw without BDRV_O_ALLOW_RDWR

BDRV_O_ALLOW_RDWR is a flag that tells whether qemu can internally
reopen a node read-write temporarily because the user requested
read-write for the top-level image, but qemu decided that read-only is
enough for this node (a backing file).

bdrv_reopen() is different, it is also used for cases where the user
changed their mind and wants to update the options. There is no reason
to forbid making a node read-write in that case.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>