Re: [PATCH v6 04/46] percpu_rwlock: Implement the core design ofPer-CPU Reader-Writer Locks

[Lai Jiangshan]

Hi, Srivatsa,

The target of the whole patchset is nice for me.
A question: How did you find out the such usages of
"preempt_disable()" and convert them? did all are converted?

And I think the lock is too complex and reinvent the wheel, why don't
you reuse the lglock?
I wrote an untested draft here.

Thanks,
Lai

PS: Some HA tools(I'm writing one) which takes checkpoints of
virtual-machines frequently, I guess this patchset can speedup the
tools.