On Wed, 18 Apr 2007, Christopher Allen Wing wrote:
On Wed, 18 Apr 2007, Chaskiel M Grundman wrote:
AFS_GLOCK is intended to prevent smp concurrency (and preemption). It also
provides mutual exclusion for ObtainXXXLock. AFS_GLOCK is dropped almost
any time the cache manager is going to sleep.
So the cross-platform AFS kernel code assumes a uniprocessor, non-preemptive
kernel, and AFS_GLOCK() is used so that the actual kernel environment
conforms to this? Okay, that makes sense now.
Nothing else existed in 1987 :)
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