diff options
| author | Kevin Wolf <kwolf@redhat.com> | 2023-10-27 17:53:12 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2023-11-07 19:14:19 +0100 |
| commit | f5a3a270fe2b89d1be39f50ebdd15db80d59014b (patch) | |
| tree | 01874d28f59e8cd8a3322ae104af2f5a6f176fc2 /migration/block-dirty-bitmap.c | |
| parent | 067179868ec8cd467d9810143339e882cb60e388 (diff) | |
block: Mark bdrv_filter_bs() and callers GRAPH_RDLOCK
This adds GRAPH_RDLOCK annotations to declare that callers of
bdrv_filter_bs() need to hold a reader lock for the graph because
it calls bdrv_filter_child(), which accesses bs->file/backing.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20231027155333.420094-4-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'migration/block-dirty-bitmap.c')
| -rw-r--r-- | migration/block-dirty-bitmap.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/migration/block-dirty-bitmap.c b/migration/block-dirty-bitmap.c index 03cb2e72ee..24347ab0f7 100644 --- a/migration/block-dirty-bitmap.c +++ b/migration/block-dirty-bitmap.c @@ -607,6 +607,10 @@ static int init_dirty_bitmap_migration(DBMSaveState *s) BlockBackend *blk; GHashTable *alias_map = NULL; + /* Runs in the migration thread, but holds the iothread lock */ + GLOBAL_STATE_CODE(); + GRAPH_RDLOCK_GUARD_MAINLOOP(); + if (migrate_has_block_bitmap_mapping()) { alias_map = construct_alias_map(migrate_block_bitmap_mapping(), true, &error_abort); |