motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-03 15:53:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

block: Mark bdrv_first_blk() and bdrv_is_root_node() GRAPH_RDLOCK

Browse source 
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>
This commit is contained in:
Kevin Wolf 2023-09-29 16:51:39 +02:00
parent 0e6bad1f21
commit 2b3912f135
14 changed files with 53 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

2
block/monitor/block-hmp-cmds.c
View file

@ -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);