Lines Matching refs:lock
129 an **IRQ lock**. This lock can be applied even when it is already in effect,
131 The thread must unlock its IRQ lock the same number of times it was locked
136 The IRQ lock is thread-specific. If thread A locks out interrupts
138 for N milliseconds), the thread's IRQ lock no longer applies once
144 IRQ lock. (Whether interrupts can be processed while the kernel is
145 switching between two threads that are using the IRQ lock is
149 re-establishes thread A's IRQ lock. This ensures thread A won't be
150 interrupted until it has explicitly unlocked its IRQ lock.
153 ready, the IRQ lock will inhibit any preemption that would otherwise
155 <scheduling_v2>` reached after releasing the IRQ lock.
168 Preventing interruptions by applying an IRQ lock may increase the observed