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sched: replace sync pause with async pause for nxsched_suspend #13734

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sched: replace sync pause with async pause for nxsched_suspend #13734

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Commits on Sep 30, 2024

  1. sched: replace sync pause with async pause for nxsched_suspend 

    reason:
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)

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

Signed-off-by: hujun5 <[email protected]>
    @hujun260
    hujun260 committed Sep 30, 2024
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