The name aio_context_in_iothread() is misleading because it also return
true when called on the main AioContext from the main loop thread, which
is not an IOThread.
This patch renames it to in_aio_context_home_thread() and expands the
doc comment to make the semantics clearer.
Signed-off-by: Stefan Hajnoczi
---
include/block/aio.h | 7 +--
include/block/block.h | 2 +-
2 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/include/block/aio.h b/include/block/aio.h
index e9aeeaec94..fc14a2acda 100644
--- a/include/block/aio.h
+++ b/include/block/aio.h
@@ -534,11 +534,14 @@ void aio_co_enter(AioContext *ctx, struct Coroutine *co);
AioContext *qemu_get_current_aio_context(void);
/**
+ * in_aio_context_home_thread:
* @ctx: the aio context
*
- * Return whether we are running in the I/O thread that manages @ctx.
+ * Return whether we are running in the thread that normally runs @ctx. Note
+ * that acquiring/releasing ctx does not affect the outcome, each AioContext
+ * still only has a one home thread that is responsible for running it.
*/
-static inline bool aio_context_in_iothread(AioContext *ctx)
+static inline bool in_aio_context_home_thread(AioContext *ctx)
{
return ctx == qemu_get_current_aio_context();
}
diff --git a/include/block/block.h b/include/block/block.h
index 19b3ab9cb5..d559419722 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -372,7 +372,7 @@ void bdrv_drain_all(void);
bool busy_ = true; \
BlockDriverState *bs_ = (bs); \
AioContext *ctx_ = bdrv_get_aio_context(bs_); \
-if (aio_context_in_iothread(ctx_)) { \
+if (in_aio_context_home_thread(ctx_)) {\
while ((cond) || busy_) { \
busy_ = aio_poll(ctx_, (cond));\
waited_ |= !!(cond) | busy_; \
--
2.14.3
