Re: [RFCv3][PATCH 1/4] replace string_get_size() arrays
From: Joe Perches
Date: Tue Oct 04 2011 - 16:42:39 EST
On Tue, 2011-10-04 at 12:35 -0700, Dave Hansen wrote:
> On Sat, 2011-10-01 at 12:33 -0700, Joe Perches wrote:
> > On Fri, 2011-09-30 at 17:08 -0700, Dave Hansen wrote:
> > > Instead of explicitly storing the entire string for each
> > > possible units, just store the thing that varies: the
> > > first character.
> > trivia
> I'm not sure what you mean by that.
that what followed wasn't a declaration of defect, just trivial.
> > > diff -puN lib/string_helpers.c~string_get_size-pow2 lib/string_helpers.c
> > > --- linux-2.6.git/lib/string_helpers.c~string_get_size-pow2 2011-09-30 16:50:31.628981352 -0700
> > > +++ linux-2.6.git-dave/lib/string_helpers.c 2011-09-30 17:04:02.211607364 -0700
> > > @@ -8,6 +8,23 @@
> > > #include <linux/module.h>
> > > #include <linux/string_helpers.h>
> > >
> > > +static const char byte_units = "_KMGTPEZY";
> > u64 could be up to ~1.8**19 decimal
> > zetta and yotta are not possible or necessary.
> > u128 maybe someday, but then other changes
> > would be necessary too.
> Right, but we're only handling u64.
So the declaration should be:
static const char byte_units = " KMGTPE";
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