On Mon, 14 Jun 2021 13:47:27 -0600 Yu Zhao <yuzhao@xxxxxxxxxx> wrote: > Use memalloc_noreclaim_save()/memalloc_noreclaim_restore() in > reclaim_pages() to prevent the page reclaim from going into the block > I/O layer recursively and deadlock. Well. Deadlocking the kernel is considered a bad thing ;) >From the lack of a cc:stable I'm assuming that this is a theoretical from-code-inspection thing and that such a deadlock has not been observed? If not, why do we think that is the case? What is saving us? (In other words, more detailed changelogging, please!)
