Re: [Linux-ia64] race conditions in ia32 subsystem

n0ano
2002-01-18T18:54:49Z

David-

I'm up for taking a stab at this. It might be a week or so, I'm pretty
busy right now, but I'll get to it.

On Fri, Jan 18, 2002 at 10:14:08AM -0800, David Mosberger wrote:
> A while we discussed the race conditions that are present in the ia32
> subsystem when the page size is greater than 4KB. It occurred to me
> that these problems can be fixed easily and cleanly by using the
> get_user_pages() routine (this routine was introduced in 2.4.17, if
> memory serves).
>
> The basic idea would be to use the address space's mmap_sem instead of
> the global ia32_mmap_sem and to use get_user_pages() instead of
> copy_from_user()/copy_to_user() to access memory.
>
> Does someone want to take a stab at doing this?
>
> --david
>
> _______________________________________________
> Linux-IA64 mailing list
> Linux-IA64@linuxia64.org
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--
Don Dugger
"Censeo Toto nos in Kansa esse decisse." - D. Gale
n0ano@indstorage.com
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