linux-kernel - Re: [RFC][PATCH 3/5] pagemap: remove open-coded sizeof(unsigned long)

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Message-Id: <1186530902.22283.77.camel@localhost>
Date:	Tue, 07 Aug 2007 16:55:02 -0700
From:	Dave Hansen <haveblue@...ibm.com>
To:	Matt Mackall <mpm@...enic.com>
Cc:	linux-kernel@...r.kernel.org, serue@...ibm.com
Subject: Re: [RFC][PATCH 3/5] pagemap: remove open-coded sizeof(unsigned
	long)

On Tue, 2007-08-07 at 18:40 -0500, Matt Mackall wrote:
> On Tue, Aug 07, 2007 at 03:33:02PM -0700, Dave Hansen wrote:
> > +#define PAGEMAP_ENTRY_SIZE_BYTES sizeof(unsigned long)
> > +
> >  static int add_to_pagemap(unsigned long addr, unsigned long pfn,
> >  			  struct pagemapread *pm)
> >  {
> >  	__put_user(pfn, pm->out);
> >  	pm->out++;
> > -	pm->pos += sizeof(unsigned long);
> > -	pm->count -= sizeof(unsigned long);
> > -	pm->next = addr + PAGE_SIZE;
> > +	pm->pos += PAGEMAP_ENTRY_SIZE_BYTES;
> > +	pm->count -= PAGEMAP_ENTRY_SIZE_BYTES;
> 
> I think deleting ->next is a little premature here?

It is.  I'll fix that up.

-- Dave

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