Hi, all: The function sched_lock() is used to disable preemption, I also see a lot about sched_lock() discussion in the community, and based on my own experience,I believe that sched_lock() is very easy to misuse and difficult to understand , especially in SMP where sched_lock() has caused many bugs.
I think sched_lock() should be completely removed 1 most case we can replace sched_lock() with enter_critical_section(), at the sametime we add sched_lock()'s ability to the enter_critical_section() 2 we can replace sched_lock() with mutex ,sem or spinlock。 3 directly removal Any comments are very welcome! BR!
