Messages in this thread | | | Date | Fri, 11 Jul 2008 10:51:31 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH] x86: introduce max_low_pfn_mapped for 64bit |
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* Yinghai Lu <yhlu.kernel@gmail.com> wrote:
> On Fri, Jul 11, 2008 at 1:26 AM, Ingo Molnar <mingo@elte.hu> wrote: > > > > * Yinghai Lu <yhlu.kernel@gmail.com> wrote: > > > >> when 4g more memory installed, don't map big hole below 4g. > > > > applied to tip/x86/core, thanks Yinghai. > > > > This is a scarier change - no way to do it in smaller steps? > > 1. e820_end ==> e820_end_of_ram_pfn :: totally safe... > 2. others
yeah. I'd also split out the introduction of max_low_pfn_mapped into a separate, safe patch as well. I.e. first patch just introduces it, second patch makes use of it.
the #ifdef 64-bit assymetry looks a bit ugly too.
Ingo
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