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From: Eric Dumazet <edumazet@google.com>
Date: Tue, 13 Feb 2024 07:34:18 +0100
Message-ID: <CANn89i+JQdR9-X_mEfifSAGGxqJaWz+hzWcUjScNCz5zOA1yLA@mail.gmail.com>
Subject: Re: [PATCH net-next v8 4/4] eventpoll: Add epoll ioctl for epoll_params
To: Joe Damato <jdamato@fastly.com>
Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org, 
	chuck.lever@oracle.com, jlayton@kernel.org, linux-api@vger.kernel.org, 
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	amritha.nambiar@intel.com, Jiri Slaby <jirislaby@kernel.org>, 
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On Tue, Feb 13, 2024 at 7:17=E2=80=AFAM Joe Damato <jdamato@fastly.com> wro=
te:
>
> Add an ioctl for getting and setting epoll_params. User programs can use
> this ioctl to get and set the busy poll usec time, packet budget, and
> prefer busy poll params for a specific epoll context.
>
> Parameters are limited:
>   - busy_poll_usecs is limited to <=3D s32_max
>   - busy_poll_budget is limited to <=3D NAPI_POLL_WEIGHT by unprivileged
>     users (!capable(CAP_NET_ADMIN))
>   - prefer_busy_poll must be 0 or 1
>   - __pad must be 0
>
> Signed-off-by: Joe Damato <jdamato@fastly.com>
> Acked-by: Stanislav Fomichev <sdf@google.com>
> Reviewed-by: Jiri Slaby <jirislaby@kernel.org>

Reviewed-by: Eric Dumazet <edumazet@google.com>

Thanks !