> Actually the kernel lock is different to other spinlocks.
>
> When a task holding the kernel lock blocks, i.e. calls schedule(), the
> lock is dropped. When the task is run again, the lock is reacquired.
yes. The kernel lock can be best described as a 'spin-semaphore'. We might
want to change it to a real semaphore in the future, now that the locked
regions are getting much longer (multi-millisec). 2.5 stuff i guess.
-- mingo
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