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%SECTION0{name=LddDeferredWork}% Deferring work * motivation: we can't do all work in the irq handler (for now at least -> PREEMPT_RT can run irqs as kthreads) * available mechanisms * very old: bottom halves * deprecated but available: tasklets (disadvantages: run in softirq context -> must be atomic, no userspace access, high prio -> block userspace process, etc) * state of art: workqueues
5.6.2. Interrupt Handling
1. Denx Training Topics
5.7. Miscellaneous topics
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