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| author | Kevin Wolf | 2016-02-24 15:13:35 +0100 |
|---|---|---|
| committer | Kevin Wolf | 2016-05-19 16:45:30 +0200 |
| commit | 22aa8b246ada8d45add8eef64d4640a20b4f7ef3 (patch) | |
| tree | 3d4c42208230b6e538be75111281d75cc63beb1f /block | |
| parent | block: Move I/O throttling configuration functions to BlockBackend (diff) | |
| download | qemu-22aa8b246ada8d45add8eef64d4640a20b4f7ef3.tar.gz qemu-22aa8b246ada8d45add8eef64d4640a20b4f7ef3.tar.xz qemu-22aa8b246ada8d45add8eef64d4640a20b4f7ef3.zip | |
block: Introduce BdrvChild.opaque
BlockBackends use it to get a back pointer from BdrvChild to
BlockBackend in any BdrvChildRole callbacks.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/block-backend.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/block/block-backend.c b/block/block-backend.c index b9aaa604a6..52b7b922c2 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -133,6 +133,7 @@ BlockBackend *blk_new_with_bs(Error **errp) bs = bdrv_new_root(); blk->root = bdrv_root_attach_child(bs, "root", &child_root); + blk->root->opaque = blk; bs->blk = blk; return blk; } @@ -458,6 +459,7 @@ void blk_insert_bs(BlockBackend *blk, BlockDriverState *bs) assert(!blk->root && !bs->blk); bdrv_ref(bs); blk->root = bdrv_root_attach_child(bs, "root", &child_root); + blk->root->opaque = blk; bs->blk = blk; notifier_list_notify(&blk->insert_bs_notifiers, blk); |