Re: 2.4.0-test10-pre3:Oops in mm/filemap.c:filemap_write_pa

[Linus Torvalds]

On Tue, 24 Oct 2000, Alexander Viro wrote:
> 
> It's not the only problem, but I would feel _much_ safer if pagefault
> wouldn't rely on pagecache miss. Actually... Hey. Why don't we do the
> insertion into page tables _within_ ->nopage()?

NO!

We used to do this a LOONG time ago.

Distributing the VM information on how to properly insert a pte into the
page table into drivers is _NOT_ something I want to do again. It was a
pain to get it properly modularized, we're not going back to the horror.

Note that if there really are only 9 "nopage" routines, then it is a lot
easier to just add the single "SetPageUptodate(page)" into those 9
routines, and thus let the VM know of the race.

                Linus

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