Re: [PATCH] powerpc: Fix mem= cmdline handling on arch/powerpc for !MULTIPLATFORM

[Kumar Gala]

On Feb 26, 2006, at 2:38 PM, Dave Hansen wrote:

> On Fri, 2006-02-24 at 10:54 -0600, Kumar Gala wrote:
> > +       if (strstr(cmd_line, "mem=")) {
> > +               char *p, *q;
> > +               unsigned long maxmem = 0;
> > +
> > +               for (q = cmd_line; (p = strstr(q, "mem=")) != 0; ) {
> > +                       q = p + 4;
> > +                       if (p > cmd_line && p[-1] != ' ')
> > +                               continue;
> > +                       maxmem = simple_strtoul(q, &q, 0);
> > +                       if (*q == 'k' || *q == 'K') {
> > +                               maxmem <<= 10;
> > +                               ++q;
> > +                       } else if (*q == 'm' || *q == 'M') {
> > +                               maxmem <<= 20;
> > +                               ++q;
> > +                       } else if (*q == 'g' || *q == 'G') {
> > +                               maxmem <<= 30;
> > +                               ++q;
> > +                       }
> > +               }
> > +               memory_limit = maxmem;
> > +       }
>
> You may want to check out lib/cmdline.c's memparse() function.  I  
> think
> it does this for you.

Yeah, found it after I sent the patch.  Since Linus applied this  
version, I'll provide Paul a version that changes this code to use  
memparse for post 2.6.16.

- kumar
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