Messages in this thread | | | Date | Mon, 13 Sep 1999 06:43:41 -0700 | From | "David S. Miller" <> | Subject | Re: spin_lock and linux philosophy question... |
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Date: Mon, 13 Sep 1999 06:19:10 -0700 (PDT) From: Robert Dinse <nanook@eskimo.com>
But that brings up a larger question of why there are spin locks at all? If a CPU can't be doing one thing because a particular resource is unavailable being used by another CPU, why isn't it then sent off to do something else?
Please read "Unix Systems for Modern Architectures" by Curt Schimmel for a good primer on spinlocks and why they are used in an OS.
Later, David S. Miller davem@redhat.com
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