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SubjectRe: test_and_set_bit() not atomic forever? [cli/sti in char/vt.c [patch]]
DateMon, 01 Jun 1998 07:33:08 +0100
FromDavid Woodhouse <>
> On Sun, May 31, 1998 at 10:31:20PM +0100, Jamie Lokier wrote:
> 
> > Perhaps a fixup table to convert all the `lock's to `nop's at
> > initialisation time?
> 
> That's nonsense as only the SMP kernel uses the lock prefix.
> 
>   Ralf

The point was that lots of people are running SMP kernels on UP machines, 
where it's gratuitous overhead.

----                              ----                              ----
David Woodhouse, Robinson College, CB3 9AN, England.   (+44) 0976 658355
    Dave@imladris.demon.co.uk        http://www.imladris.demon.co.uk
	    finger pgp@dwmw2.robinson.cam.ac.uk for PGP key.


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