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Re: [PATCH 1/8] jump_label: no need to acquire the jump_label_mutex in jump_lable_init()

From Peter Zijlstra <peterz@infradead.org>
Newsgroups linux.kernel
Subject Re: [PATCH 1/8] jump_label: no need to acquire the jump_label_mutex in jump_lable_init()
Date 2015-08-20 20:30 +0200
Message-ID <pZCL7-4sw-11@gated-at.bofh.it> (permalink)
References <pZwZ4-4Ab-17@gated-at.bofh.it> <pZwZ4-4Ab-27@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Thu, Aug 20, 2015 at 08:14:29PM +0800, Kevin Hao wrote:
> The jump_label_init() run in a very early stage, even before the
> sched_init(). So there is no chance for concurrent access of the
> jump label table.

It also doesn't hurt to have it. Its better to be consistent and
conservative with locking unless there is a pressing need.
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[PATCH 1/8] jump_label: no need to acquire the jump_label_mutex in jump_lable_init() Kevin Hao <haokexin@gmail.com> - 2015-08-20 14:20 +0200
  Re: [PATCH 1/8] jump_label: no need to acquire the jump_label_mutex  in jump_lable_init() Peter Zijlstra <peterz@infradead.org> - 2015-08-20 20:30 +0200
    Re: [PATCH 1/8] jump_label: no need to acquire the jump_label_mutex  in jump_lable_init() Kevin Hao <haokexin@gmail.com> - 2015-08-21 05:20 +0200

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