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Re: [Xen-devel] [patch] nr_pfns miscalculated

On 12 May 2005, at 14:58, Christian Limpach wrote:

On Thu, May 12, 2005 at 02:58:10PM +0100, Keir Fraser wrote:

On 12 May 2005, at 14:45, Christian Limpach wrote:

Looks to me like the current code tries to handle the case where an
e820 entry starts not on a page boundary -- not sure this is needed...

It's probably rounding the wrong way: should consider only pages
completely covered by the e820 range.

At least the current code is consistent.


Actually it's deciding what should be marked as 'I/O memory'. The current code includes fractional pages -- since such pages are never registered with the RAM allocator, this policy doesn't seem harmful.

 -- Keir

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