Re: [PATCH 00/16] mm: prepare for converting vm->vm_flags to 64-bit
From: Konstantin Khlebnikov
Date: Sun Mar 25 2012 - 03:56:36 EST
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.
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