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block: Mark bdrv_recurse_can_replace() and callers GRAPH_RDLOCK

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This adds GRAPH_RDLOCK annotations to declare that callers of
bdrv_recurse_can_replace() need to hold a reader lock for the graph
because it accesses the children list of a node.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20230504115750.54437-20-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf
2023-05-04 13:57:49 +02:00
parent 4f0bef8b36
commit 533c6e4ee8
7 changed files with 19 additions and 10 deletions
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5
include/block/block-global-state.h
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@@ -163,8 +163,9 @@ int bdrv_amend_options(BlockDriverState *bs_new, QemuOpts *opts,
Error **errp);
/* check if a named node can be replaced when doing drive-mirror */
BlockDriverState *check_to_replace_node(BlockDriverState *parent_bs,
const char *node_name, Error **errp);
BlockDriverState * GRAPH_RDLOCK
check_to_replace_node(BlockDriverState *parent_bs, const char *node_name,
Error **errp);
int no_coroutine_fn bdrv_activate(BlockDriverState *bs, Error **errp);