diff options
Diffstat (limited to 'block/block-backend.c')
| -rw-r--r-- | block/block-backend.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/block/block-backend.c b/block/block-backend.c index 53fd9d2f0e..2f8acbdbaf 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -34,6 +34,7 @@ struct BlockBackend { DriveInfo *legacy_dinfo; /* null unless created by drive_new() */ QTAILQ_ENTRY(BlockBackend) link; /* for block_backends */ QTAILQ_ENTRY(BlockBackend) monitor_link; /* for monitor_block_backends */ + BlockBackendPublic public; void *dev; /* attached device model, if any */ /* TODO change to DeviceState when all users are qdevified */ @@ -411,6 +412,22 @@ BlockBackend *blk_by_legacy_dinfo(DriveInfo *dinfo) } /* + * Returns a pointer to the publicly accessible fields of @blk. + */ +BlockBackendPublic *blk_get_public(BlockBackend *blk) +{ + return &blk->public; +} + +/* + * Returns a BlockBackend given the associated @public fields. + */ +BlockBackend *blk_by_public(BlockBackendPublic *public) +{ + return container_of(public, BlockBackend, public); +} + +/* * Disassociates the currently associated BlockDriverState from @blk. */ void blk_remove_bs(BlockBackend *blk) |