sched: replace sync pause with async pause for nxtask_restart #13735
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Summary
In the kernel, we are planning to remove all occurrences of up_cpu_pause as one of the steps to simplify the implementation of critical sections. The goal is to enable spin_lock_irqsave to encapsulate critical sections, thereby facilitating the replacement of critical sections(big lock) with smaller spin_lock_irqsave(small lock)
Impact
nxtask_restart
Testing
Configuring NuttX and compile:
$ ./tools/configure.sh -l qemu-armv8a:nsh_smp
$ make
Running with qemu
$ qemu-system-aarch64 -cpu cortex-a53 -smp 4 -nographic -machine virt,virtualization=on,gic-version=3
-net none -chardev stdio,id=con,mux=on -serial chardev:con -mon chardev=con,mode=readline -kernel ./nuttx