Re: [Qemu-devel] [PATCH] block/mirror: Fix passing wrong argument to trace_mirror_yield

[Fam Zheng <famz@redhat.com>]

On Mon, 11/28 16:58, Yang Wei wrote:
> mirror_yield is defined in block/trace-event, just like the following:
> mirror_yield(void *s, int64_t cnt, int buf_free_count, int in_flight)
> so we should exchange arguement 2 and 4 while invoking it.
> 
> Signed-off-by: Yang Wei <w90p710@gmail.com>
> ---
>  block/mirror.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/block/mirror.c b/block/mirror.c
> index 301ba92..2846a2e 100644
> --- a/block/mirror.c
> +++ b/block/mirror.c
> @@ -577,7 +577,7 @@ static int coroutine_fn mirror_dirty_init(MirrorBlockJob *s)
>              }
>  
>              if (s->in_flight >= MAX_IN_FLIGHT) {
> -                trace_mirror_yield(s, s->in_flight, s->buf_free_count, -1);
> +                trace_mirror_yield(s,  -1, s->buf_free_count, s->in_flight);
>                  mirror_wait_for_io(s);
>                  continue;
>              }
> @@ -730,7 +730,7 @@ static void coroutine_fn mirror_run(void *opaque)
>              s->common.iostatus == BLOCK_DEVICE_IO_STATUS_OK) {
>              if (s->in_flight >= MAX_IN_FLIGHT || s->buf_free_count == 0 ||
>                  (cnt == 0 && s->in_flight > 0)) {
> -                trace_mirror_yield(s, s->in_flight, s->buf_free_count, cnt);
> +                trace_mirror_yield(s, cnt, s->buf_free_count, s->in_flight);
>                  mirror_wait_for_io(s);
>                  continue;
>              } else if (cnt != 0) {
> -- 
> 2.10.2
> 
> 

Reviewed-by: Fam Zheng <famz@redhat.com>