linux-kernel - Re: [PATCH 20/26 v5] seq_buf: Add seq_buf_can

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Message-ID: <20141117195651.27c79369@gandalf.local.home>
Date:	Mon, 17 Nov 2014 19:56:51 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Joe Perches <joe@...ches.com>
Cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jiri Kosina <jkosina@...e.cz>, Petr Mladek <pmladek@...e.cz>
Subject: Re: [PATCH 20/26 v5] seq_buf: Add seq_buf_can_fit() helper function

On Mon, 17 Nov 2014 16:35:32 -0800
Joe Perches <joe@...ches.com> wrote:

 
> What "logic" does it place in one place and
> how does it matter?

Look at the next patch.

> 
> I don't see it making mistakes more or less
> likely, I just see it being used to avoid
> setting the overflow state which seems like
> more of an error than anything else.
> 
> Why avoid setting overflow at all?
> 

It has nothing to do with overflow. Where did you get that from?

It has to do with updating the seq->len value or not.

-- Steve

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