Hello!
I finally found and fixed the rcu_barrier() bug [1], so I should again
be able to devote some big-system test time to redoing performance
results in perfbook. Once that is done, I expect that it is time for
the second edition.
I might also convert the blank page hiding the solution to the Dining
Philosophers Problem to a quick quiz, but I consider this optional.
Are there any other changes that are needed? [2]
Thanx, Paul
[1] The fix is at 77abca1c358a ("rcu: Make rcu_barrier() account for
offline no-CBs CPUs") in -rcu, in case anyone is curious.
[2] Here is a list of some things that I believe can follow the second
edition:
Expand lock-free algorithm discussion to include LIFO push,
illustrating the infamous pointer-zap issue. (See ISO SC22
WG21 P1726R3, which should appear in a couple of weeks, for
more details.)
Add text describing the Issaquah Challenge.
Add text describing skiplists, one of the more concurrency
friendly data structures.
Add text describing data-race detectors such as KCSAN. (This needs
to wait for more Linux-kernel experience.)
Additional material from todo.txt. ;-)
