diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/block/block-io.h | 7 | ||||
| -rw-r--r-- | include/block/graph-lock.h | 6 |
2 files changed, 11 insertions, 2 deletions
diff --git a/include/block/block-io.h b/include/block/block-io.h index 43af816d75..4415506e40 100644 --- a/include/block/block-io.h +++ b/include/block/block-io.h @@ -224,6 +224,13 @@ bdrv_co_debug_event(BlockDriverState *bs, BlkdebugEvent event); void co_wrapper_mixed_bdrv_rdlock bdrv_debug_event(BlockDriverState *bs, BlkdebugEvent event); +#define BLKDBG_CO_EVENT(child, evt) \ + do { \ + if (child) { \ + bdrv_co_debug_event(child->bs, evt); \ + } \ + } while (0) + #define BLKDBG_EVENT(child, evt) \ do { \ if (child) { \ diff --git a/include/block/graph-lock.h b/include/block/graph-lock.h index 7574a2de5b..7e04f98ff0 100644 --- a/include/block/graph-lock.h +++ b/include/block/graph-lock.h @@ -111,10 +111,12 @@ void unregister_aiocontext(AioContext *ctx); * The wrlock can only be taken from the main loop, with BQL held, as only the * main loop is allowed to modify the graph. * + * If @bs is non-NULL, its AioContext is temporarily released. + * * This function polls. Callers must not hold the lock of any AioContext other - * than the current one. + * than the current one and the one of @bs. */ -void bdrv_graph_wrlock(void) TSA_ACQUIRE(graph_lock) TSA_NO_TSA; +void bdrv_graph_wrlock(BlockDriverState *bs) TSA_ACQUIRE(graph_lock) TSA_NO_TSA; /* * bdrv_graph_wrunlock: |