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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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3
blockdev.c
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@ -2961,6 +2961,9 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
BlockDriverState *unfiltered_bs;
int job_flags = JOB_DEFAULT;
GLOBAL_STATE_CODE();
GRAPH_RDLOCK_GUARD_MAINLOOP();
if (!has_speed) {
speed = 0;
}