linux-kernel - Re: [PATCH] Revert "f2fs: use printk_ratelimited for f2fs

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Date:   Mon, 13 Aug 2018 02:50:47 -0700
From:   Joe Perches <joe@...ches.com>
To:     Chao Yu <yuchao0@...wei.com>, jaegeuk@...nel.org
Cc:     linux-f2fs-devel@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org, chao@...nel.org
Subject: Re: [PATCH] Revert "f2fs: use printk_ratelimited for f2fs_msg"

On Mon, 2018-08-13 at 14:28 +0800, Chao Yu wrote:
> Don't limit printing log, so that we will not miss any key messages.
> 
> This reverts commit a36c106dffb616250117efb1cab271c19a8f94ff.
[]
> diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
[]
> @@ -209,7 +209,7 @@ void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...)
>  	va_start(args, fmt);
>  	vaf.fmt = fmt;
>  	vaf.va = &args;
> -	printk_ratelimited("%sF2FS-fs (%s): %pV\n", level, sb->s_id, &vaf);
> +	printk("%sF2FS-fs (%s): %pV\n", level, sb->s_id, &vaf);
>  	va_end(args);
>  }

If there was value in ratelimiting these messages at all,
perhaps there is value in using a specific ratelimit_state
other than

	static DEFINE_RATELIMIT_STATE(_rs,				\
				      DEFAULT_RATELIMIT_INTERVAL,	\
				      DEFAULT_RATELIMIT_BURST);		\