On Fri 05-04-19 08:17:30, Dave Chinner wrote: > FYI, I'm working on a range lock implementation that should both > solve the performance issue and the reader starvation issue at the > same time by allowing concurrent buffered reads and writes to > different file ranges. Are you aware of range locks Davidlohr has implemented [1]? It didn't get merged because he had no in-tree user at the time (he was more aiming at converting mmap_sem which is rather difficult). But the generic lock implementation should be well usable. Added Davidlohr to CC. Honza [1] https://lkml.org/lkml/2017/3/7/22 -- Jan Kara <jack@xxxxxxxx> SUSE Labs, CR
