Robert Watson wrote:
On Tue, 30 Jun 2009, Mel Flynn wrote:
It looks like sys/kern/kern_proc.c could call mincore around the
loop at line 1601 (rev 194498), but I know nothing about the vm
subsystem to know the implications or locking involved. There's
still 16 bytes of spare to consume, in the kve_vminfo struct though ;)
Yes, to start with, you could replace the call to pmap_extract()
with a call to pmap_mincore() and export a Boolean to user space
that says, "This region of the address space contains one or more
superpage mappings."
How about attached?
I like the idea -- there are some style nits that need fixing though.
Assuming Alan is happy with the VM side of things, I can do the
cleanup and get it in the tree.
Aside from the style nits, it looks good to me.
Alan
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