Re: [PATCH -v2 09/13] x86: Fixup code testing if a pfn is direct mapped

2012-09-02 Thread Pekka Enberg
On Sun, Sep 2, 2012 at 10:46 AM, Yinghai Lu wrote: > From: Jacob Shin > > Update code that previously assumed pfns [ 0 - max_low_pfn_mapped ) and > [ 4GB - max_pfn_mapped ) were always direct mapped, to now look up > pfn_mapped ranges instead. What problem does this fix? How did you find about i

[PATCH -v2 09/13] x86: Fixup code testing if a pfn is direct mapped

2012-09-02 Thread Yinghai Lu
From: Jacob Shin Update code that previously assumed pfns [ 0 - max_low_pfn_mapped ) and [ 4GB - max_pfn_mapped ) were always direct mapped, to now look up pfn_mapped ranges instead. -v2: change applying sequence to keep git bisecting working. so add dummy pfn_range_is_mapped(). - Yinghai