linux-kernel - Re: [PATCH 2/6] ipc/mqueue.c: Remove duplicated code

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Date:   Mon, 14 Oct 2019 14:37:28 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Manfred Spraul <manfred@...orfullife.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Davidlohr Bueso <dave@...olabs.net>,
        Waiman Long <longman@...hat.com>, 1vier1@....de,
        Andrew Morton <akpm@...ux-foundation.org>,
        Jonathan Corbet <corbet@....net>
Subject: Re: [PATCH 2/6] ipc/mqueue.c: Remove duplicated code

On Sat, Oct 12, 2019 at 07:49:54AM +0200, Manfred Spraul wrote:
> +static inline void __pipelined_op(struct wake_q_head *wake_q,
>  				  struct mqueue_inode_info *info,
> +				  struct ext_wait_queue *this)
>  {
> +	list_del(&this->list);
> +	wake_q_add(wake_q, this->task);
>  	/*
>  	 * Rely on the implicit cmpxchg barrier from wake_q_add such
>  	 * that we can ensure that updating receiver->state is the last
> @@ -937,7 +932,19 @@ static inline void pipelined_send(struct wake_q_head *wake_q,
>  	 * yet, at that point we can later have a use-after-free
>  	 * condition and bogus wakeup.
>  	 */
> +        this->state = STATE_READY;

  ^^^^^^^^^^ whitespace damage

> +}