qed: Simplify request handling
Now that we process a request in the same coroutine from beginning to
end and don't drop out of it any more, we can look like a proper
coroutine-based driver and simply call qed_aio_next_io() and get a
return value from it instead of spawning an additional coroutine that
reenters the parent when it's done.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
diff --git a/block/qed.h b/block/qed.h
index 37558e4..fb80943 100644
--- a/block/qed.h
+++ b/block/qed.h
@@ -129,8 +129,7 @@
};
typedef struct QEDAIOCB {
- BlockAIOCB common;
- int bh_ret; /* final return status for completion bh */
+ BlockDriverState *bs;
QSIMPLEQ_ENTRY(QEDAIOCB) next; /* next request */
int flags; /* QED_AIOCB_* bits ORed together */
uint64_t end_pos; /* request end on block device, in bytes */
