Merge tag 'csd-lock.2024.11.16a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull CSD-lock update from Paul McKenney:
"This switches from sched_clock() to ktime_get_mono_fast_ns(), which on
x86 switches from the rdtsc instruction to the rdtscp instruction,
thus avoiding instruction reorderings that cause false-positive
reports of CSD-lock stalls of almost 2^46 nanoseconds. These false
positives are rare, but really are seen in the wild"
* tag 'csd-lock.2024.11.16a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
locking/csd-lock: Switch from sched_clock() to ktime_get_mono_fast_ns()
