linux-api.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Eric Dumazet <eric.dumazet@gmail.com>
To: Alexander Duyck <alexander.duyck@gmail.com>
Cc: Netdev <netdev@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"Samudrala, Sridhar" <sridhar.samudrala@intel.com>,
	Eric Dumazet <edumazet@google.com>,
	David Miller <davem@davemloft.net>,
	Linux API <linux-api@vger.kernel.org>
Subject: Re: [net-next PATCH v2 5/8] net: Track start of busy loop instead of when it should end
Date: Thu, 23 Mar 2017 21:38:16 -0700	[thread overview]
Message-ID: <1490330296.9687.39.camel@edumazet-glaptop3.roam.corp.google.com> (raw)
In-Reply-To: <1490329655.9687.33.camel@edumazet-glaptop3.roam.corp.google.com>

On Thu, 2017-03-23 at 21:27 -0700, Eric Dumazet wrote:

> If you believe min/max values should be added to the sysctls, because we
> do not trust root anymore, please send patches only addressing that. 

extern unsigned int sysctl_net_busy_read;
extern unsigned int sysctl_net_busy_poll;
...
unsigned int            sk_ll_usec;


These are unsigned values, so no min/max would be required, only
maybe use proc_douintvec() instead of proc_dointvec() as most sysctls
use because we were lazy and had to wait linux-4.8 to actually get
proc_douintvec() in the kernel ;)

  reply	other threads:[~2017-03-24  4:38 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-23 21:36 [net-next PATCH v2 0/8] Add busy poll support for epoll Alexander Duyck
     [not found] ` <20170323211820.12615.88907.stgit-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2017-03-23 21:36   ` [net-next PATCH v2 1/8] net: Busy polling should ignore sender CPUs Alexander Duyck
2017-03-23 22:05     ` Eric Dumazet
2017-03-23 21:36 ` [net-next PATCH v2 2/8] tcp: Record Rx hash and NAPI ID in tcp_child_process Alexander Duyck
     [not found]   ` <20170323213644.12615.27158.stgit-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2017-03-24  1:00     ` Eric Dumazet
2017-03-23 21:36 ` [net-next PATCH v2 3/8] net: Only define skb_mark_napi_id in one spot instead of two Alexander Duyck
     [not found]   ` <20170323213651.12615.62895.stgit-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2017-03-24  1:02     ` Eric Dumazet
2017-03-23 21:37 ` [net-next PATCH v2 4/8] net: Change return type of sk_busy_loop from bool to void Alexander Duyck
     [not found]   ` <20170323213715.12615.49246.stgit-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2017-03-24  1:02     ` Eric Dumazet
2017-03-23 21:37 ` [net-next PATCH v2 5/8] net: Track start of busy loop instead of when it should end Alexander Duyck
2017-03-24  1:24   ` Eric Dumazet
2017-03-24  3:42     ` Alexander Duyck
     [not found]       ` <CAKgT0Ue+UFOAhwxN-EOjWYZa9YZc2QaT5gvoLap70COs0rF7NA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-03-24  4:27         ` Eric Dumazet
2017-03-24  4:38           ` Eric Dumazet [this message]
2017-03-24  5:55           ` Alexander Duyck
     [not found]             ` <CAKgT0UfQPLqHtZ_SjanbLoG6t5f36C4nsORuw6yjLT0xZrEoEQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-03-24 11:16               ` Eric Dumazet
     [not found]                 ` <1490354210.9687.44.camel-XN9IlZ5yJG9HTL0Zs8A6p+yfmBU6pStAUsxypvmhUTTZJqsBc5GL+g@public.gmane.org>
2017-03-24 15:48                   ` Alexander Duyck
2017-03-23 21:37 ` [net-next PATCH v2 6/8] net: Commonize busy polling code to focus on napi_id instead of socket Alexander Duyck
     [not found]   ` <20170323213749.12615.38165.stgit-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2017-03-23 22:25     ` Eric Dumazet
2017-03-23 21:37 ` [net-next PATCH v2 7/8] epoll: Add busy poll support to epoll with socket fds Alexander Duyck
2017-03-23 21:38 ` [net-next PATCH v2 8/8] net: Introduce SO_INCOMING_NAPI_ID Alexander Duyck
     [not found]   ` <20170323213802.12615.58216.stgit-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2017-03-23 22:22     ` Eric Dumazet
2017-03-23 22:43     ` Andy Lutomirski
2017-03-24  0:58       ` Alexander Duyck
     [not found]         ` <CAKgT0UcHJVycQ3+h09L2Ph=TVncqHPJ6dZpicUgBo7TaFTN7yw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-03-24  4:47           ` Andy Lutomirski
2017-03-24  5:07             ` Eric Dumazet
2017-03-23 22:07 ` [net-next PATCH v2 0/8] Add busy poll support for epoll Alexei Starovoitov
     [not found]   ` <20170323220721.GA62356-+o4/htvd0TDFYCXBM6kdu7fOX0fSgVTm@public.gmane.org>
2017-03-23 22:38     ` Alexander Duyck
     [not found]       ` <CAKgT0Uctdf4N-w72EY8T5Zfw=QCSCgAesXdgOh-HUYdD=Aq9AA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-03-23 22:49         ` Eric Dumazet

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1490330296.9687.39.camel@edumazet-glaptop3.roam.corp.google.com \
    --to=eric.dumazet@gmail.com \
    --cc=alexander.duyck@gmail.com \
    --cc=davem@davemloft.net \
    --cc=edumazet@google.com \
    --cc=linux-api@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=netdev@vger.kernel.org \
    --cc=sridhar.samudrala@intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).