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authorMarkus Armbruster <armbru@redhat.com>2010-06-29 16:58:30 +0200
committerKevin Wolf <kwolf@redhat.com>2010-07-02 13:18:02 +0200
commit18846dee1a795b4345ac0bd10b70a3a46fd14287 (patch)
treeae5d0224a6e9733c38835c39fab70e5f42393867 /block_int.h
parentdfb0acd88782573e075251ef323e23a4bffdbf93 (diff)
block: Catch attempt to attach multiple devices to a blockdev
For instance, -device scsi-disk,drive=foo -device scsi-disk,drive=foo happily creates two SCSI disks connected to the same block device. It's all downhill from there. Device usb-storage deliberately attaches twice to the same blockdev, which fails with the fix in place. Detach before the second attach there. Also catch attempt to delete while a guest device model is attached. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block_int.h')
-rw-r--r--block_int.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/block_int.h b/block_int.h
index e60aed4a04..a94b80152f 100644
--- a/block_int.h
+++ b/block_int.h
@@ -148,6 +148,8 @@ struct BlockDriverState {
BlockDriver *drv; /* NULL means no media */
void *opaque;
+ DeviceState *peer;
+
char filename[1024];
char backing_file[1024]; /* if non zero, the image is a diff of
this file image */