Hi, I have posted the previous version here [1]. There are no real changes in the implementation since then. Few acks added and one new user of memalloc_noio_flags (in alloc_contig_range) converted. I have decided to drop the last two ext4 related patches. One of them will be picked up by Ted [2] and the other one will probably need more time to settle down. I believe it is OK as is but let's not block the whole thing just because of it. There didn't seem to be any real objections and so I think we should go and merge this to mmotm tree and target the next merge window. The risk of regressions is really small because we do not remove any real GFP_NOFS users yet. I hope to get ext4 parts resolved in the follow up patches as well as pull other filesystems in. There is still a lot work to do but having the infrastructure in place should be very useful already. The patchset is based on next-20170206 Diffstat says fs/jbd2/journal.c | 7 +++++++ fs/jbd2/transaction.c | 11 +++++++++++ fs/xfs/kmem.c | 12 ++++++------ fs/xfs/kmem.h | 2 +- fs/xfs/libxfs/xfs_btree.c | 2 +- fs/xfs/xfs_aops.c | 6 +++--- fs/xfs/xfs_buf.c | 8 ++++---- fs/xfs/xfs_trans.c | 12 ++++++------ include/linux/gfp.h | 18 +++++++++++++++++- include/linux/jbd2.h | 2 ++ include/linux/sched.h | 32 ++++++++++++++++++++++++++------ kernel/locking/lockdep.c | 6 +++++- lib/radix-tree.c | 2 ++ mm/page_alloc.c | 10 ++++++---- mm/vmscan.c | 6 +++--- 15 files changed, 100 insertions(+), 36 deletions(-) Shortlog: Michal Hocko (6): lockdep: allow to disable reclaim lockup detection xfs: abstract PF_FSTRANS to PF_MEMALLOC_NOFS mm: introduce memalloc_nofs_{save,restore} API xfs: use memalloc_nofs_{save,restore} instead of memalloc_noio* jbd2: mark the transaction context with the scope GFP_NOFS context jbd2: make the whole kjournald2 kthread NOFS safe [1] http://lkml.kernel.org/r/20170106141107.23953-1-mhocko@xxxxxxxxxx [2] http://lkml.kernel.org/r/20170117030118.727jqyamjhojzajb@xxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html