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SubjectRe: msync() bug

On Mon, 9 Jul 2001, Hugh Dickins wrote:
> As it stands, yes. But shouldn't there be some kind of VM_ASIFRESERVED
> vma flag to treat all its pages as if they were reserved, for /dev/mem?

Sure, that is doable. We do in fact already have the flag - you could
think of the VM_IO as that kind of flag already. I wouldn't object to that
kind of change in the 2.5.x timeframe. We already have vmscan ignoring
VM_IO objects, we could do the same to copy_mm() and to mmdrop().


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