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Date: Thu, 17 Sep 2020 17:40:06 -0700 From: Francesco Ruggeri <fruggeri@...sta.com> To: Stephen Hemminger <stephen@...workplumber.org> Cc: open list <linux-kernel@...r.kernel.org>, netdev <netdev@...r.kernel.org>, Cong Wang <xiyou.wangcong@...il.com>, Taehee Yoo <ap420073@...il.com>, Andrii Nakryiko <andriin@...com>, Eric Dumazet <edumazet@...gle.com>, Jiri Pirko <jiri@...lanox.com>, Alexei Starovoitov <ast@...nel.org>, Jakub Kicinski <kuba@...nel.org>, David Miller <davem@...emloft.net> Subject: Re: [PATCH v3] net: use exponential backoff in netdev_wait_allrefs On Thu, Sep 17, 2020 at 5:02 PM Stephen Hemminger <stephen@...workplumber.org> wrote: > Is there anyway to make RCU trigger faster? This is a case of the networking code requiring multiple cascading grace periods (functions executing at the end of a period scheduling more functions for the end of the next period), so it's a matter of how many steps are required, rather than how fast each step is, if that is what you are suggesting. I don't think that expediting rcu periods would help in this case, but I will defer to people with better knowledge of the networking code than me to comment.
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