Re: [PATCH RT] Defer migrate_enable migration while task state != TASK_RUNNING
From: Steven Rostedt <rostedt@goodmis.org>
Date: 2018-03-26 15:59:08
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On Mon, 26 Mar 2018 11:54:51 -0400 joe.korty@concurrent-rt.com wrote:
Oh well. Makes me wonder why might_sleep is testing for !TASK_RUNNABLE though.
Because might_sleep() is used when the function might call schedule() directly. And schedule() *will* change the task state to TASK_RUNNING. might_sleep() has nothing to do with preemption. -- Steve