On 2022-09-05 16:33:54 [+0800], Guo Ren wrote: > > There is "generic" code in the PREEMPT_RT patch doing that. The counter > > is incremented/ decremented via preempt_lazy_enable()/disable() and one > > of the user is migrate_disable()/enable(). > > Basically if a task is task_is_realtime() then NEED_RESCHED is set for > > the wakeup. For the remaining states (SCHED_OTHER, …) NEED_RESCHED_LAZY > > is set for the wakeup. This can be delayed if the task is in a "preempt > > disable lazy" section (similar to a preempt_disable() section) but a > > task_is_realtime() can still be scheduled if needed. > Okay, It should be [PATCH RT]. RISC-V would also move to GENERIC_ENTRY > [1], so above assembly code would be replaced by generic one, right? correct. Sebastian
