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block: Add bs->node_name to hold the name of a bs node of the bs graph.

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Add the minimum of code to prepare for the following patches.

Signed-off-by: Benoit Canet <benoit@irqsave.net>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Benoît Canet 2014-01-23 21:31:32 +01:00 • committed by Kevin Wolf
parent c8059b97e1
commit dc364f4cdc
3 changed files with 52 additions and 15 deletions
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9
include/block/block_int.h
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@ -325,11 +325,18 @@ struct BlockDriverState {
BlockdevOnError on_read_error, on_write_error;
bool iostatus_enabled;
BlockDeviceIoStatus iostatus;
/* the following member gives a name to every node on the bs graph. */
char node_name[32];
/* element of the list of named nodes building the graph */
QTAILQ_ENTRY(BlockDriverState) node_list;
/* Device name is the name associated with the "drive" the guest sees */
char device_name[32];
/* element of the list of "drives" the guest sees */
QTAILQ_ENTRY(BlockDriverState) device_list;
QLIST_HEAD(, BdrvDirtyBitmap) dirty_bitmaps;
int refcnt;
int in_use; /* users other than guest access, eg. block migration */
QTAILQ_ENTRY(BlockDriverState) list;
QLIST_HEAD(, BdrvTrackedRequest) tracked_requests;