* Jeff Davis:
> Does this happen to be based on some academic research? I don't
> necessarily expect it to be; just thought I'd ask.
Paul E. McKenney's thesis contains a few references. It's called
"asymmetrical reader-writer locking" there, and Ingo Molnar implemented
this as "brlock" in Linux 2.4. The earliest citation seems to be
W.C. Hsiesh, W. E. Weihl, "Scalable reader-writer locks for parallel
systems.", MIT-LCS-TR-521, published in 1991.
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