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authorKevin Shanahan <kmshanah@disenchant.net>2012-09-21 08:50:22 +0930
committerKevin Wolf <kwolf@redhat.com>2012-09-24 15:15:11 +0200
commit80dd1aae3657a902d262f5d20a7a3c655b23705e (patch)
treec4a22665f9d5483e89184d14ad018fdc97298ad1 /blockdev.c
parentd3e8f95753114a827f9cd8e819b1d5cc8333f76b (diff)
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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>
Diffstat (limited to 'blockdev.c')
-rw-r--r--blockdev.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/blockdev.c b/blockdev.c
index 7c83baa..e5d450f 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -527,6 +527,8 @@ DriveInfo *drive_init(QemuOpts *opts, int default_to_scsi)
if_name[type], 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;