On Mon, 2019-04-08 at 12:33 +0200, Jan Kara wrote: > 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 fyi this was the latest version (had some naming updates per peterz). https://lkml.org/lkml/2018/2/4/232
