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| author |   Kevin Shanahan <kmshanah@disenchant.net> | 2012-09-21 08:50:22 +0930 |
|---|---|---|
| committer |   Doug Goldstein <cardoe@cardoe.com> | 2012-11-21 15:21:18 -0600 |
| commit | 5c161e01ff70d94ec36937e3153e6751a98e222d (patch) | |
| tree | 0587489406bdf1829921ab85380376135df479cd | |
| parent | i386: kvm: bit 10 of CPUID[8000_0001].EDX is reserved (diff) | |
| download | qemu-kvm-5c161e01ff70d94ec36937e3153e6751a98e222d.tar.gz qemu-kvm-5c161e01ff70d94ec36937e3153e6751a98e222d.tar.bz2 qemu-kvm-5c161e01ff70d94ec36937e3153e6751a98e222d.zip | |
blockdev: preserve readonly and snapshot states across media changes
If readonly=on is given at device creation time, the ->readonly flag
needs to be set in the block driver state for this device so that
readonly-ness is preserved across media changes (qmp change command).
Similarly, to preserve the snapshot property requires ->open_flags to
be correct.
Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 80dd1aae3657a902d262f5d20a7a3c655b23705e)
| -rw-r--r-- | blockdev.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/blockdev.c b/blockdev.c index 0d20460f0..0858de182 100644 --- a/blockdev.c +++ b/blockdev.c @@ -535,6 +535,8 @@ DriveInfo *drive_init(QemuOpts *opts, int default_to_scsi) devname, mediastr, unit_id); } dinfo->bdrv = bdrv_new(dinfo->id); + dinfo->bdrv->open_flags = snapshot ? BDRV_O_SNAPSHOT : 0; + dinfo->bdrv->read_only = ro; dinfo->devaddr = devaddr; dinfo->type = type; dinfo->bus = bus_id; |