diff options
Diffstat (limited to 'include/block/aio.h')
| -rw-r--r-- | include/block/aio.h | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/include/block/aio.h b/include/block/aio.h index b9fe2cb37e..c7ae27c91c 100644 --- a/include/block/aio.h +++ b/include/block/aio.h @@ -18,7 +18,6 @@ #include "qemu/queue.h" #include "qemu/event_notifier.h" #include "qemu/thread.h" -#include "qemu/rfifolock.h" #include "qemu/timer.h" typedef struct BlockAIOCB BlockAIOCB; @@ -54,7 +53,7 @@ struct AioContext { GSource source; /* Protects all fields from multi-threaded access */ - RFifoLock lock; + QemuRecMutex lock; /* The list of registered AIO handlers */ QLIST_HEAD(, AioHandler) aio_handlers; @@ -116,9 +115,6 @@ struct AioContext { bool notified; EventNotifier notifier; - /* Scheduling this BH forces the event loop it iterate */ - QEMUBH *notify_dummy_bh; - /* Thread pool for performing work and receiving completion callbacks */ struct ThreadPool *thread_pool; @@ -453,6 +449,24 @@ static inline bool aio_node_check(AioContext *ctx, bool is_external) } /** + * Return the AioContext whose event loop runs in the current thread. + * + * If called from an IOThread this will be the IOThread's AioContext. If + * called from another thread it will be the main loop AioContext. + */ +AioContext *qemu_get_current_aio_context(void); + +/** + * @ctx: the aio context + * + * Return whether we are running in the I/O thread that manages @ctx. + */ +static inline bool aio_context_in_iothread(AioContext *ctx) +{ + return ctx == qemu_get_current_aio_context(); +} + +/** * aio_context_setup: * @ctx: the aio context * |