On Fri, Oct 23, 2020 at 4:37 PM Daniel Vetter <daniel.vetter@xxxxxxxx> wrote: > > On Fri, Oct 23, 2020 at 4:16 PM Matthew Wilcox <willy@xxxxxxxxxxxxx> wrote: > > > > On Fri, Oct 23, 2020 at 02:21:15PM +0200, Daniel Vetter wrote: > > > Note that unlike fs_reclaim_acquire/release gfpflags_allow_blocking > > > does not consult the PF_MEMALLOC flags. But there is no flag > > > equivalent for GFP_NOWAIT, hence this check can't go wrong due to > > > memalloc_no*_save/restore contexts. > > > > I have a patch series that adds memalloc_nowait_save/restore. > > tbh this was a typoed git send-email, but thanks for the heads-up, > I'll adjust the patch accordingly. On 2nd thought I think your patch should update gfpflags_allow_blocking to take into account the new ->memalloc_nowait flag you're adding. I'll comment over there in that thread. -Daniel > > > https://lore.kernel.org/linux-mm/20200625113122.7540-7-willy@xxxxxxxxxxxxx/ > > > > -- > Daniel Vetter > Software Engineer, Intel Corporation > http://blog.ffwll.ch -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch
