On Mon, 2 Sep 2024 05:53:59 -0400 Kent Overstreet <kent.overstreet@xxxxxxxxx> wrote: > On Mon, Sep 02, 2024 at 11:51:48AM GMT, Michal Hocko wrote: > > The previous version has been posted in [1]. Based on the review feedback > > I have sent v2 of patches in the same threat but it seems that the > > review has mostly settled on these patches. There is still an open > > discussion on whether having a NORECLAIM allocator semantic (compare to > > atomic) is worthwhile or how to deal with broken GFP_NOFAIL users but > > those are not really relevant to this particular patchset as it 1) > > doesn't aim to implement either of the two and 2) it aims at spreading > > PF_MEMALLOC_NORECLAIM use while it doesn't have a properly defined > > semantic now that it is not widely used and much harder to fix. > > > > I have collected Reviewed-bys and reposting here. These patches are > > touching bcachefs, VFS and core MM so I am not sure which tree to merge > > this through but I guess going through Andrew makes the most sense. > > > > Changes since v1; > > - compile fixes > > - rather than dropping PF_MEMALLOC_NORECLAIM alone reverted eab0af905bfc > > ("mm: introduce PF_MEMALLOC_NORECLAIM, PF_MEMALLOC_NOWARN") suggested > > by Matthew. > > To reiterate: > It would be helpful to summarize your concerns. What runtime impact do you expect this change will have upon bcachefs?