On Tue, Apr 10, 2001 at 05:55:09PM -0700, Linus Torvalds wrote:
> Note that the "fixup" approach is not necessarily very painful at all,
> from a performance standpoint (either on 386 or on newer CPU's). It's not
> really that hard to just replace the instruction in the "undefined
> instruction" handler by having strict rules about how to use the "xadd"
> instruction.
Fixup for user space is probably not that nice (CMPXCHG is used there by
linuxthreads)
-Andi
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This archive was generated by hypermail 2b29 : Sun Apr 15 2001 - 21:00:15 EST