Re: [PATCH] rcu: don't include <linux/ktime.h> in rcutiny.h

From: Paul E. McKenney
Date: Wed Aug 21 2019 - 23:04:05 EST


On Thu, Aug 22, 2019 at 10:53:43AM +0900, Christoph Hellwig wrote:
> The kbuild reported a built failure due to a header loop when RCUTINY is
> enabled with my pending riscv-nommu port. Switch rcutiny.h to only
> include the minimal required header to get HZ instead.
>
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>

Queued for review and testing, thank you!

Do you need this in v5.4? My normal workflow would put it into v5.5.

Thanx, Paul

> ---
> include/linux/rcutiny.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/include/linux/rcutiny.h b/include/linux/rcutiny.h
> index 8e727f57d814..9bf1dfe7781f 100644
> --- a/include/linux/rcutiny.h
> +++ b/include/linux/rcutiny.h
> @@ -12,7 +12,7 @@
> #ifndef __LINUX_TINY_H
> #define __LINUX_TINY_H
>
> -#include <linux/ktime.h>
> +#include <asm/param.h> /* for HZ */
>
> /* Never flag non-existent other CPUs! */
> static inline bool rcu_eqs_special_set(int cpu) { return false; }
> --
> 2.20.1
>