Messages in this thread | | | Date | Sun, 25 Mar 2012 11:55:52 +0400 | From | Konstantin Khlebnikov <> | Subject | Re: [PATCH 00/16] mm: prepare for converting vm->vm_flags to 64-bit |
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Benjamin Herrenschmidt wrote: > On Sat, 2012-03-24 at 18:46 +0400, Konstantin Khlebnikov wrote: >> Obviously we can combine VM_PFN_AT_MMAP, VM_SAO, VM_GROWSUP and >> VM_MAPPED_COPY into one. > > VM_PFN_AT_MMAP isn't arch specific afaik...
Technically yes, but all this pfnmap-tracking engine has only one user: x86 PAT. We can easily make it x86-only, or try to implement it without using special flag on vma.
> > Cheers, > Ben. > >
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