--On Wednesday, April 18, 2007 02:45:36 PM -0400 Christopher Allen Wing
<[EMAIL PROTECTED]> wrote:
I don't understand the usage of AFS_GLOCK(); why is it safe to drop and
re-acquire it in cases like this? Is AFS_GLOCK intended to serialize all
AFS calls coming from vnode methods in the kernel?
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.
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