To be reused soon for blockdev-replace functionality.
Signed-off-by: Vladimir Sementsov-Ogievskiy <[email protected]>
---
block.c | 13 +++++++++++++
blockdev.c | 14 --------------
include/block/block_int-io.h | 2 ++
3 files changed, 15 insertions(+), 14 deletions(-)
diff --git a/block.c b/block.c
index 48a17f393c..b13d06f709 100644
--- a/block.c
+++ b/block.c
@@ -8288,6 +8288,19 @@ int bdrv_make_empty(BdrvChild *c, Error **errp)
return 0;
}
+BdrvChild *bdrv_find_child(BlockDriverState *parent_bs, const char *child_name)
+{
+ BdrvChild *child;
+
+ QLIST_FOREACH(child, &parent_bs->children, next) {
+ if (strcmp(child->name, child_name) == 0) {
+ return child;
+ }
+ }
+
+ return NULL;
+}
+
/*
* Return the child that @bs acts as an overlay for, and from which data may be
* copied in COW or COR operations. Usually this is the backing file.
diff --git a/blockdev.c b/blockdev.c
index 6e86c6262f..2540f991b3 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -3569,20 +3569,6 @@ unlock:
}
}
-static BdrvChild * GRAPH_RDLOCK
-bdrv_find_child(BlockDriverState *parent_bs, const char *child_name)
-{
- BdrvChild *child;
-
- QLIST_FOREACH(child, &parent_bs->children, next) {
- if (strcmp(child->name, child_name) == 0) {
- return child;
- }
- }
-
- return NULL;
-}
-
void qmp_x_blockdev_change(const char *parent, const char *child,
const char *node, Error **errp)
{
diff --git a/include/block/block_int-io.h b/include/block/block_int-io.h
index ed8b5657d6..8ff3bc6d87 100644
--- a/include/block/block_int-io.h
+++ b/include/block/block_int-io.h
@@ -130,6 +130,8 @@ bdrv_co_refresh_total_sectors(BlockDriverState *bs, int64_t
hint);
int co_wrapper_mixed_bdrv_rdlock
bdrv_refresh_total_sectors(BlockDriverState *bs, int64_t hint);
+BdrvChild * GRAPH_RDLOCK
+bdrv_find_child(BlockDriverState *parent_bs, const char *child_name);
BdrvChild * GRAPH_RDLOCK bdrv_cow_child(BlockDriverState *bs);
BdrvChild * GRAPH_RDLOCK bdrv_filter_child(BlockDriverState *bs);
BdrvChild * GRAPH_RDLOCK bdrv_filter_or_cow_child(BlockDriverState *bs);
--
2.52.0
