linux-ext4 - Re: [PATCH 1/1] Fix of coding style

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Date:	Mon, 26 Jan 2015 18:28:19 +0100
From:	Jiri Slaby <jslaby@...e.cz>
To:	Eric Sandeen <sandeen@...hat.com>,
	Jan Mrazek <email@...zamrazek.cz>,
	Theodore Ts'o <tytso@....edu>, linux-ext4@...r.kernel.org,
	trivial@...nel.org
Subject: Re: [PATCH 1/1] Fix of coding style

On 01/26/2015, 06:18 PM, Eric Sandeen wrote:
> On 1/26/15 10:24 AM, Jan Mrazek wrote:
>> - multiline strings changed to singleline (so it can be greped)
> 
> Thereby blowing past 80 columns in many cases, something we generally
> don't like to do, per Documentation/CodingStyle:

When you refer to that document, you certainly read the whole chapter 2 :).

>> The limit on the length of lines is 80 columns and this is a strongly
>> preferred limit.
> 
> I'm not so sure about the grep-ability value, because nobody's going to
> grep for "...%s): %s:%d: inode #%lu: ..." anyway...

Perhaps, but
  grep EXT4.*block.*comm
does the trick quite nice... And this is actually a nice example of the
point of this exercise.

> but if it's really deemed desirable to keep these strings on one line,
> we could do i.e.:
> 
>> +			printk(KERN_CRIT
>> +"EXT4-fs error (device %s): %s:%d: inode #%lu: block %llu: comm %s: %pV\n",
>>  			       inode->i_sb->s_id, function, line, inode->i_ino,
>>  			       block, current->comm, &vaf)
> 
> which is a trick the xfs code uses in some places.

Oh no, that's ugly. If anything, this could have been pr_crit("EXT4-fs
error ...

thanks,
-- 
js
suse labs
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