Philip Blundell (Philip.Blundell@pobox.com)
Wed, 14 Jan 1998 23:07:37 +0000
>So cli() don' t mask well critical code that can be managed also from
>others CPU, right? cli() clear interrupts only on the CPU that executed
>cli(), or no?
No - cli() must mask interrupts on all CPUs for compatibility with
uniprocessor. This involves sending IPIs to all processors and so it's
expensive - the spinlock approach is more efficient.
-- To unsubscribe, send mail to: email@example.com --
-- with the single word "unsubscribe" in the body of the message. --
This archive was generated by hypermail 2.0b3 on Wed 30 Dec 1998 - 10:17:19 EST