Messages in this thread | | | Date | Tue, 20 May 2003 01:11:57 -0700 | From | Andrew Morton <> | Subject | Re: [RFC][PATCH] vm_operation to avoid pagefault/inval race |
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"Paul E. McKenney" <paulmck@us.ibm.com> wrote: > > So the general idea is to do something as follows, right?
It sounds reasonable. A matter of putting together the appropriate library functions and refactoring a few things.
> > o Make a function, perhaps named something like > install_new_page(), that does the PTE-installation > and RSS-adjustment tasks currently performed by > both do_no_page() and by do_anonymous_page().
That's similar to mm/fremap.c:install_page(). (Which forgets to call update_mmu_cache(). Debatably a buglet.)
However there is not a lot of commonality between the various nopage()s and there may not be a lot to be gained from all this. There is subtle code in there and it is performance-critical. I'd be inclined to try to minimise overall code churn in this work.
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