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authorMarcelo Tosatti <mtosatti@redhat.com>2011-01-26 12:12:34 -0200
committerKevin Wolf <kwolf@redhat.com>2011-02-07 12:51:19 +0100
commitdb593f2565dc12442d6bac9e8eaefa027dfcada9 (patch)
tree0d7d11a025b200752ef2f7907ddedfc1bf4e545b /block_int.h
parentf48905d44f670cd83227b3a8d06ae1406f0c771c (diff)
Add flag to indicate external users to block device
Certain operations such as drive_del or resize cannot be performed while external users (eg. block migration) reference the block device. Add a flag to indicate that. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block_int.h')
-rw-r--r--block_int.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/block_int.h b/block_int.h
index 6ebdc3eea2..545ad11ff3 100644
--- a/block_int.h
+++ b/block_int.h
@@ -199,6 +199,7 @@ struct BlockDriverState {
char device_name[32];
unsigned long *dirty_bitmap;
int64_t dirty_count;
+ int in_use; /* users other than guest access, eg. block migration */
QTAILQ_ENTRY(BlockDriverState) list;
void *private;
};