linux-kernel - Re: [PATCH] fs/super.c: use && instead of & for warn

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Message-ID: <20150921154005.GA22742@redhat.com>
Date:	Mon, 21 Sep 2015 17:40:05 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	Vincent Stehlé <vincent.stehle@...escale.com>
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	Alexander Viro <viro@...iv.linux.org.uk>, trivial@...nel.org
Subject: Re: [PATCH] fs/super.c: use && instead of & for warn_on condition

On 09/21, Vincent Stehlé wrote:
>
> --- a/fs/super.c
> +++ b/fs/super.c
> @@ -1199,7 +1199,7 @@ int __sb_start_write(struct super_block *sb, int level, bool wait)
>  	else
>  		ret = percpu_down_read_trylock(sb->s_writers.rw_sem + level-1);
>
> -	WARN_ON(force_trylock & !ret);
> +	WARN_ON(force_trylock && !ret);

OOPS! yes, this is a typo, thanks! Harmless in this particular case,
but still.

Acked-by: Oleg Nesterov <oleg@...hat.com>

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