On Mon, Mar 15, 2021 at 9:29 PM Shakeel Butt <shakeelb@xxxxxxxxxx> wrote: > > On Mon, Mar 15, 2021 at 9:20 PM Arjun Roy <arjunroy@xxxxxxxxxx> wrote: > > > [...] > > > > > > > Apologies for the spam - looks like I forgot to rebase the first time > > I sent this out. > > > > Actually, on a related note, it's not 100% clear to me whether this > > patch (which in its current form, applies to net-next) should instead > > be based on the mm branch - but the most recent (clean) checkout of mm > > fails to build for me so net-next for now. > > > > It is due to "mm: page-writeback: simplify memcg handling in > test_clear_page_writeback()" patch in the mm tree. You would need to > reintroduce the lock_page_memcg() which returns the memcg and make > __unlock_page_memcg() non-static. To clarify, Shakeel - the tag "tag: v5.12-rc2-mmots-2021-03-11-21-49" fails to build on a clean checkout, without this patch, due to a compilation failure in mm/shmem.c, for reference: https://pastebin.com/raw/12eSGdGD (and that's why I'm basing this patch off of net-next in this email). -Arjun