linux-kernel - Re: [PATCH 2/2] fat: use fat_msg_ratelimit in fat__get

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Date:	Sun, 13 May 2012 09:21:55 -0700
From:	Joe Perches <joe@...ches.com>
To:	OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
Cc:	Namjae Jeon <linkinjeon@...il.com>, linux-kernel@...r.kernel.org,
	Amit Sahrawat <amit.sahrawat83@...il.com>
Subject: Re: [PATCH 2/2] fat: use fat_msg_ratelimit in fat__get_entry.

On Mon, 2012-05-14 at 01:07 +0900, OGAWA Hirofumi wrote:
> Joe Perches <joe@...ches.com> writes:
> 
> > On Sun, 2012-05-13 at 07:03 -0400, Namjae Jeon wrote:
> >> So this patch use fat_msg_ratelimit function about this message to decrease this messages.
> > []
> >> diff --git a/fs/fat/dir.c b/fs/fat/dir.c
> >> index aca191b..b2cdbf4 100644
> >> --- a/fs/fat/dir.c
> >> +++ b/fs/fat/dir.c
> >> @@ -98,8 +98,8 @@ next:
> >>  
> >>  	*bh = sb_bread(sb, phys);
> >>  	if (*bh == NULL) {
> >> -		fat_msg(sb, KERN_ERR, "Directory bread(block %llu) failed",
> >> -		       (llu)phys);
> >> +		fat_msg_ratelimit(sb, KERN_ERR, "Directory bread(block %llu) "
> >> +				"failed", (llu)phys);
> >
> > Please don't split format strings.
> > It's much harder to grep.
> 
> Please fight with 80 columns guys before requesting it.

That battle is long over.

from Documentation/CodingStyle:

		Chapter 2: Breaking long lines and strings

[]

The limit on the length of lines is 80 columns and this is a strongly
preferred limit.
[]
However, never break user-visible strings such as
printk messages, because that breaks the ability to grep for them.


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