On Tue, Dec 17, 2019 at 11:11:12PM +0800, qiwuchen55@xxxxxxxxx wrote: > From: chenqiwu <chenqiwu@xxxxxxxxxx> > > There is a potential starvation that the number of delayed fput works > increase rapidly if task exit storm or fs unmount issue happens. Err... Details, please, ideally along with a reproducer. In particular, I would like to understand what does any of that have to do with umount. Or to task exits, for that matter - exit_files() is called before exit_task_work(), so you shouldn't normally be seeing task_work_add() failures when files get closed on exit(2)... If you are really observing such problems, it might be worth looking into the underlying situation - something odd appears to be going on and I'd rather understand what it is.
