On 13/07/2016 11:06, Cao jin wrote:
> When passed argument 'ns' is 0, macro DIV_ROUND_UP will return 0 also.
It's potentially slower though.
Paolo
> Cc: Paolo Bonzini <pbonz...@redhat.com>
> Signed-off-by: Cao jin <caoj.f...@cn.fujitsu.com>
> ---
> qemu-timer.c | 6 +-----
> 1 file changed, 1 insertion(+), 5 deletions(-)
>
> diff --git a/qemu-timer.c b/qemu-timer.c
> index eb22e92..cfe0893 100644
> --- a/qemu-timer.c
> +++ b/qemu-timer.c
> @@ -285,12 +285,8 @@ int qemu_timeout_ns_to_ms(int64_t ns)
> return -1;
> }
>
> - if (!ns) {
> - return 0;
> - }
> -
> /* Always round up, because it's better to wait too long than to wait too
> - * little and effectively busy-wait
> + * short and effectively busy-wait
> */
> ms = DIV_ROUND_UP(ns, SCALE_MS);
>
>
