Hi,
I have posted the previous version here [1]. Since then I've added some
reviewed bys and fixed some minor issues. I've dropped patch 2 [2] based
on Dave's request [3]. I agree that this can be done later and doing
all at once. I still think that __GFP_NOLOCKDEP should be added by this
series to make the further development easier.
There didn't seem to be any real objections and so I think we should go
and merge this and build further on top. I would like to get rid of all
explicit GFP_NOFS usage in ext4 code. I have something half baked already
and will send it later on. I also hope we can get further with the xfs
as well.
I haven't heard anything from btrfs or other filesystems guys which is a
bit unfortunate but I do not want to wait for them to much longer, they
can join the effort later on.
The patchset is based on next-20170106
Diffstat says
fs/ext4/acl.c | 6 +++---
fs/ext4/extents.c | 8 ++++----
fs/ext4/resize.c | 4 ++--
fs/ext4/xattr.c | 4 ++--
fs/jbd2/journal.c | 7 +++++++
fs/jbd2/transaction.c | 11 +++++++++++
fs/xfs/kmem.c | 10 +++++-----
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 | 8 +++++---
mm/vmscan.c | 6 +++---
19 files changed, 109 insertions(+), 45 deletions(-)
Shortlog:
Michal Hocko (8):
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
Revert "ext4: avoid deadlocks in the writeback path by using sb_getblk_gfp"
Revert "ext4: fix wrong gfp type under transaction"
[1] http://lkml.kernel.org/r/20161215140715.12732-1-mhocko@xxxxxxxxxx
[2] http://lkml.kernel.org/r/20161215140715.12732-3-mhocko@xxxxxxxxxx
[3] http://lkml.kernel.org/r/20161219212413.GN4326@dastard
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