On Tue, Sep 21, 2021 at 07:59:51PM +0200, Vlastimil Babka wrote: > These days the pcplist protection is done by local_lock, which solved > the RT concerns. Probably a stupid/infeasible idea, but maybe what you > want to achieve could be more generally solved at the local_lock level? > That on NOHZ_FULL CPUs, local_locks could have this mode where they > could synchronize with remote cpus? local_lock and spinlock have different rules, local_lock for example can never cause an irq inversion, unlike a spinlock.
