linux-kernel - Re: [RFCv3][PATCH 1/4] replace string_get

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Message-ID: <1317761466.7842.41.camel@nimitz>
Date:	Tue, 04 Oct 2011 13:51:06 -0700
From:	Dave Hansen <dave@...ux.vnet.ibm.com>
To:	Joe Perches <joe@...ches.com>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	rientjes@...gle.com, James.Bottomley@...senPartnership.com,
	hpa@...or.com
Subject: Re: [RFCv3][PATCH 1/4] replace string_get_size() arrays

On Tue, 2011-10-04 at 13:42 -0700, Joe Perches wrote:
> > Right, but we're only handling u64.
> 
> So the declaration should be:
> 
>         static const char byte_units[] = " KMGTPE";

I guess that's worth a comment.  But that first character doesn't get
used.  There were two alternatives:

	static const char byte_units[] = "_KMGTPE";

or something along the lines of:

+	static const char byte_units[] = "KMGTPE";
...
+	index--;
+       /* index=-1 is plain 'B' with no other unit */
+       if (index >= 0) {

We don't ever _actually_ look at the space (or underscore).  I figured
the _ was nicer since it would be _obvious_ if it ever got printed out
somehow.  

-- Dave

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