mii/qemu
1
0
Fork 0
mirror of https://github.com/mii443/qemu.git synced 2025-08-29 18:39:26 +00:00
Code Issues Packages Projects Releases Wiki Activity

block: add helper function to determine if a BDS is in a chain

Browse Source 
This is a small helper function, to determine if 'base' is in the
chain of BlockDriverState 'top'.  It returns true if it is in the chain,
and false otherwise.

If either argument is NULL, it will also return false.

Reviewed-by: Benoit Canet <benoit@irqsave.net>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Jeff Cody
2014-06-25 15:40:09 -04:00
committed by Stefan Hajnoczi
parent fa40e65622
commit 5a6684d2b9
2 changed files with 12 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
include/block/block.h
View File

@ -403,6 +403,7 @@ BlockDeviceInfoList *bdrv_named_nodes_list(void);
BlockDriverState *bdrv_lookup_bs(const char *device,
const char *node_name,
Error **errp);
bool bdrv_chain_contains(BlockDriverState *top, BlockDriverState *base);
BlockDriverState *bdrv_next(BlockDriverState *bs);
void bdrv_iterate(void (*it)(void *opaque, BlockDriverState *bs),
void *opaque);