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block: Mark bdrv_get_specific_info() and callers GRAPH_RDLOCK

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This adds GRAPH_RDLOCK annotations to declare that callers of
bdrv_get_specific_info() need to hold a reader lock for the graph.
This removes an assume_graph_lock() call in vmdk's implementation.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20230929145157.45443-20-kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf 2023-09-29 16:51:54 +02:00
parent 018f9dea9c
commit 3574499a1e
4 changed files with 10 additions and 8 deletions
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3
qemu-io-cmds.c
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@ -2037,6 +2037,9 @@ static int info_f(BlockBackend *blk, int argc, char **argv)
char s1[64], s2[64];
int ret;
GLOBAL_STATE_CODE();
GRAPH_RDLOCK_GUARD_MAINLOOP();
if (bs->drv && bs->drv->format_name) {
printf("format name: %s\n", bs->drv->format_name);
}