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etc:users:jcmvbkbc:phantom:locking-idioms
Synchronization idioms
| disable_preemption | Atomic | Prevent involuntary context switch on the current CPU. Doesn't affect interrupts |
| cli | Atomic | Prevent all asynchronous activity in the current CPU |
| spin_lock | Atomic | Prevent access from other CPU. Imply disable_preemption to avoid deadlock. Need cli to avoid deadlock with interrupt context |
| mutex_lock | May sleep | Prevent access from any other context. May not be used in atomic context |
etc/users/jcmvbkbc/phantom/locking-idioms.txt · Last modified: 2016/08/08 20:53 by kel
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