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blockdev: read-only-mode for blockdev-change-medium

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Add an option to qmp_blockdev_change_medium() which allows changing the
read-only status of the block device whose medium is changed.

Some drives do not have a inherently fixed read-only status; for
instance, floppy disks can be set read-only or writable independently of
the drive. Some users may find it useful to be able to therefore change
the read-only status of a block device when changing the medium.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2015-11-11 04:49:44 +01:00 • committed by Kevin Wolf
parent 1068674927
commit 39ff43d9e1
6 changed files with 72 additions and 4 deletions
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3
qmp.c
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@ -414,7 +414,8 @@ void qmp_change(const char *device, const char *target,
if (strcmp(device, "vnc") == 0) {
qmp_change_vnc(target, has_arg, arg, errp);
} else {
qmp_blockdev_change_medium(device, target, has_arg, arg, errp);
qmp_blockdev_change_medium(device, target, has_arg, arg, false, 0,
errp);
}
}