diff options
Diffstat (limited to 'include/block/graph-lock.h')
| -rw-r--r-- | include/block/graph-lock.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/block/graph-lock.h b/include/block/graph-lock.h index 2c26c72..95bf5ed 100644 --- a/include/block/graph-lock.h +++ b/include/block/graph-lock.h @@ -113,9 +113,20 @@ void no_coroutine_fn TSA_ACQUIRE(graph_lock) TSA_NO_TSA bdrv_graph_wrlock(void); /* + * bdrv_graph_wrlock_drained: + * Similar to bdrv_graph_wrlock, but will begin a drained section before + * locking. + */ +void no_coroutine_fn TSA_ACQUIRE(graph_lock) TSA_NO_TSA +bdrv_graph_wrlock_drained(void); + +/* * bdrv_graph_wrunlock: * Write finished, reset global has_writer to 0 and restart * all readers that are waiting. + * + * Also ends the drained section if bdrv_graph_wrlock_drained() was used to lock + * the graph. */ void no_coroutine_fn TSA_RELEASE(graph_lock) TSA_NO_TSA bdrv_graph_wrunlock(void); |