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[Qemu-block] [PATCH 12/16] block: Introduce parents list
From: |
Kevin Wolf |
Subject: |
[Qemu-block] [PATCH 12/16] block: Introduce parents list |
Date: |
Thu, 17 Sep 2015 15:48:16 +0200 |
Signed-off-by: Kevin Wolf <address@hidden>
---
block.c | 3 +++
include/block/block_int.h | 2 ++
2 files changed, 5 insertions(+)
diff --git a/block.c b/block.c
index 7930f3c..c196f83 100644
--- a/block.c
+++ b/block.c
@@ -1090,6 +1090,7 @@ static BdrvChild *bdrv_attach_child(BlockDriverState
*parent_bs,
};
QLIST_INSERT_HEAD(&parent_bs->children, child, next);
+ QLIST_INSERT_HEAD(&child_bs->parents, child, next_parent);
return child;
}
@@ -1097,6 +1098,7 @@ static BdrvChild *bdrv_attach_child(BlockDriverState
*parent_bs,
void bdrv_detach_child(BdrvChild *child)
{
QLIST_REMOVE(child, next);
+ QLIST_REMOVE(child, next_parent);
g_free(child);
}
@@ -2037,6 +2039,7 @@ static void bdrv_move_reference_fields(BlockDriverState
*bs_dest,
/* keep the same entry in bdrv_states */
bs_dest->device_list = bs_src->device_list;
bs_dest->blk = bs_src->blk;
+ bs_dest->parents = bs_src->parents;
memcpy(bs_dest->op_blockers, bs_src->op_blockers,
sizeof(bs_dest->op_blockers));
diff --git a/include/block/block_int.h b/include/block/block_int.h
index cfcae52..52ea7c0 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -339,6 +339,7 @@ struct BdrvChild {
BlockDriverState *bs;
const BdrvChildRole *role;
QLIST_ENTRY(BdrvChild) next;
+ QLIST_ENTRY(BdrvChild) next_parent;
};
/*
@@ -445,6 +446,7 @@ struct BlockDriverState {
* parent node of this node. */
BlockDriverState *inherits_from;
QLIST_HEAD(, BdrvChild) children;
+ QLIST_HEAD(, BdrvChild) parents;
QDict *options;
BlockdevDetectZeroesOptions detect_zeroes;
--
1.8.3.1
[Qemu-block] [PATCH 14/16] blockjob: Store device name at job creation, Kevin Wolf, 2015/09/17
[Qemu-block] [PATCH 12/16] block: Introduce parents list,
Kevin Wolf <=
[Qemu-block] [PATCH 15/16] block: Add and use bdrv_replace_in_backing_chain(), Kevin Wolf, 2015/09/17
[Qemu-block] [PATCH 16/16] block: Remove bdrv_swap(), Kevin Wolf, 2015/09/17
Re: [Qemu-block] [PATCH 00/16] block: Get rid of bdrv_swap(), Alberto Garcia, 2015/09/18
Re: [Qemu-block] [PATCH 00/16] block: Get rid of bdrv_swap(), Alberto Garcia, 2015/09/24