diff options
| author | Kevin Wolf <kwolf@redhat.com> | 2023-09-29 16:51:39 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2023-10-12 16:31:33 +0200 |
| commit | 2b3912f1350971fbc2c04d986a1d0c60ae757c78 (patch) | |
| tree | 968e32867ca0d1a1c3579adb014e07595d4ba1aa /block/monitor | |
| parent | 0e6bad1f2171385ec3ab7b9721dacfdb7dda70d7 (diff) | |
block: Mark bdrv_first_blk() and bdrv_is_root_node() GRAPH_RDLOCK
This adds GRAPH_RDLOCK annotations to declare that callers of
bdrv_first_blk() and bdrv_is_root_node() need to hold a reader lock
for the graph. These functions are the only functions in block-backend.c
that access the parent list of a node.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20230929145157.45443-5-kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/monitor')
| -rw-r--r-- | block/monitor/block-hmp-cmds.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/block/monitor/block-hmp-cmds.c b/block/monitor/block-hmp-cmds.c index ca2599de44..6b7d7dd072 100644 --- a/block/monitor/block-hmp-cmds.c +++ b/block/monitor/block-hmp-cmds.c @@ -896,6 +896,8 @@ void hmp_info_snapshots(Monitor *mon, const QDict *qdict) SnapshotEntry *snapshot_entry; Error *err = NULL; + GRAPH_RDLOCK_GUARD_MAINLOOP(); + bs = bdrv_all_find_vmstate_bs(NULL, false, NULL, &err); if (!bs) { error_report_err(err); |