Torvald,
The new v2 rwlock rewrite is now in Rawhide.
It passed all the testing I could throw at it and the regression test results across the Fedora arches looked good.
I'm moving this forward so we can make the case for glibc 2.25.
commit b587bccfe792ad45d3f2308159741fafa39c0ced Author: Carlos O'Donell carlos@systemhalted.org Date: Thu Nov 17 12:46:05 2016 -0500
glibc-2.24.90-17
* Add new scalable implementation of POSIX read-write locks.