Re: [PATCH 2/3] wait: Return number of exclusive waiters awaken

[Peter Zijlstra]

On Tue, Nov 15, 2022 at 05:45:52PM -0500, Gabriel Krisman Bertazi wrote:
> Sbitmap code will need to know how many waiters were actually woken for
> its batched wakeups implementation.  Return the number of woken
> exclusive waiters from __wake_up() to facilitate that.
> 
> Suggested-by: Jan Kara <jack@xxxxxxx>
> Signed-off-by: Gabriel Krisman Bertazi <krisman@xxxxxxx>

Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>

> ---
>  include/linux/wait.h |  2 +-
>  kernel/sched/wait.c  | 18 +++++++++++-------
>  2 files changed, 12 insertions(+), 8 deletions(-)