Stephen,

Thanks for your comments!  I'm evaluating the generic code of spinlock
on std atomics of LoongArch toolchain. An updated patch will come later.

On 2022/5/28 下午11:54, Stephen Hemminger wrote:
> On Sat, 28 May 2022 17:32:52 +0800
> Min Zhou<zhoumin@loongson.cn>  wrote:
>
>> This patch adds spinlock operations for LoongArch architecture.
>> These implementations refer to GLIBC pthread_spin_xxlock(). The
>> underlying implementation is based on LoongArch atomic
>> instructions (ie, AMSWAP_DB.W).
>>
>> Signed-off-by: Min Zhou<zhoumin@loongson.cn>
> If you supported std atomics, then the g eneric code
> could work here.