Messages in this thread |  | | Date | Sun, 6 May 2001 10:55:19 +0400 | From | Ivan Kokshaysky <> | Subject | Re: [patch] 2.4.4 alpha semaphores optimization |
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> > If you do > > (perhaps to coordinate with devices) then the barriers are required. > > For IO space access mb's are required, but ll/sc are of no use, AFAIK.
Ugh. You are right, of course. I forgot that drivers are also using atomic.h, and the intelligent device could be counted as another CPU to some degree...
Thanks for the __builtin_expect fix!
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