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[Qemu-devel] [PATCH v3 08/14] block: Introduce BdrvChild.opaque
From: |
Kevin Wolf |
Subject: |
[Qemu-devel] [PATCH v3 08/14] block: Introduce BdrvChild.opaque |
Date: |
Wed, 11 May 2016 15:24:19 +0200 |
BlockBackends use it to get a back pointer from BdrvChild to
BlockBackend in any BdrvChildRole callbacks.
Signed-off-by: Kevin Wolf <address@hidden>
Reviewed-by: Alberto Garcia <address@hidden>
---
block/block-backend.c | 2 ++
include/block/block_int.h | 1 +
2 files changed, 3 insertions(+)
diff --git a/block/block-backend.c b/block/block-backend.c
index b9aaa60..52b7b92 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);
diff --git a/include/block/block_int.h b/include/block/block_int.h
index 65f716d..6af541e 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -368,6 +368,7 @@ struct BdrvChild {
BlockDriverState *bs;
char *name;
const BdrvChildRole *role;
+ void *opaque;
QLIST_ENTRY(BdrvChild) next;
QLIST_ENTRY(BdrvChild) next_parent;
};
--
1.8.3.1
- [Qemu-devel] [PATCH v3 03/14] block: throttle-groups: Use BlockBackend pointers internally, (continued)
- [Qemu-devel] [PATCH v3 03/14] block: throttle-groups: Use BlockBackend pointers internally, Kevin Wolf, 2016/05/11
- [Qemu-devel] [PATCH v3 05/14] block: Move throttling fields from BDS to BB, Kevin Wolf, 2016/05/11
- [Qemu-devel] [PATCH v3 10/14] block/io: Quiesce parents between drained_begin/end, Kevin Wolf, 2016/05/11
- [Qemu-devel] [PATCH v3 11/14] block: Decouple throttling from BlockDriverState, Kevin Wolf, 2016/05/11
- [Qemu-devel] [PATCH v3 12/14] block: Remove bdrv_move_feature_fields(), Kevin Wolf, 2016/05/11
- [Qemu-devel] [PATCH v3 13/14] Revert "block: Forbid I/O throttling on nodes with multiple parents for 2.6", Kevin Wolf, 2016/05/11
- [Qemu-devel] [PATCH v3 14/14] block: Don't check throttled reqs in bdrv_requests_pending(), Kevin Wolf, 2016/05/11
- [Qemu-devel] [PATCH v3 09/14] block: Drain throttling queue with BdrvChild callback, Kevin Wolf, 2016/05/11
- [Qemu-devel] [PATCH v3 08/14] block: Introduce BdrvChild.opaque,
Kevin Wolf <=
- Re: [Qemu-devel] [PATCH v3 00/14] block: Move I/O throttling to BlockBackend, Stefan Hajnoczi, 2016/05/16