Messages in this thread | | | Date | Wed, 13 Apr 2005 11:10:35 +0800 | From | Coywolf Qi Hunt <> | Subject | Re: [patch 006/198] arm: add comment about max_low_pfn/max_pfn |
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I told rmk about this long time ago.
On 4/12/05, akpm@osdl.org <akpm@osdl.org> wrote: > > From: Russell King <rmk+lkml@arm.linux.org.uk> > > Oddly, max_low_pfn/max_pfn end up being the number of pages in the system, > rather than the maximum PFN on ARM. This doesn't seem to cause any problems, > so just add a note about it. > > Signed-off-by: Russell King <rmk@arm.linux.org.uk> > Signed-off-by: Andrew Morton <akpm@osdl.org> > --- > > 25-akpm/arch/arm/mm/init.c | 3 +++ > 1 files changed, 3 insertions(+) > > diff -puN arch/arm/mm/init.c~arm-add-comment-about-max_low_pfn-max_pfn arch/arm/mm/init.c > --- 25/arch/arm/mm/init.c~arm-add-comment-about-max_low_pfn-max_pfn 2005-04-12 03:21:04.967381744 -0700 > +++ 25-akpm/arch/arm/mm/init.c 2005-04-12 03:21:04.971381136 -0700 > @@ -223,6 +223,9 @@ find_memend_and_nodes(struct meminfo *mi > * This doesn't seem to be used by the Linux memory > * manager any more. If we can get rid of it, we > * also get rid of some of the stuff above as well. > + * > + * Note: max_low_pfn and max_pfn reflect the number > + * of _pages_ in the system, not the maximum PFN. > */ > max_low_pfn = memend_pfn - O_PFN_DOWN(PHYS_OFFSET); > max_pfn = memend_pfn - O_PFN_DOWN(PHYS_OFFSET); > _
-- Coywolf Qi Hunt http://sosdg.org/~coywolf/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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