Congestion hasn't been reliably tracked for quite some time.
Most MM uses of it for guiding writeback decisions were removed in 5.16.
Some other uses were removed in 17-rc1.
This series removes the remaining places that test for congestion, and
the few places which still set it.
The second patch touches a few filesystems. I didn't think there was
much value in splitting this out by filesystems, but if maintainers
would rather I did that, I will.
The f2fs, cephfs, fuse, NFS, and block patches can go through the
respective trees proving the final patch doesn't land until after they
all do - so maybe it should be held for 5.18-rc2 if all the rest lands
by 5.18-rc1.
Thanks,
NeilBrown
---
NeilBrown (9):
Remove inode_congested()
Remove bdi_congested() and wb_congested() and related functions
f2fs: change retry waiting for f2fs_write_single_data_page()
f2f2: replace some congestion_wait() calls with io_schedule_timeout()
cephfs: don't set/clear bdi_congestion
fuse: don't set/clear bdi_congested
NFS: remove congestion control.
block/bfq-iosched.c: use "false" rather than "BLK_RW_ASYNC"
Remove congestion tracking framework.
block/bfq-iosched.c | 2 +-
drivers/block/drbd/drbd_int.h | 3 --
drivers/block/drbd/drbd_req.c | 3 +-
fs/ceph/addr.c | 27 ---------------
fs/ceph/super.c | 2 --
fs/ceph/super.h | 2 --
fs/ext2/ialloc.c | 2 --
fs/f2fs/compress.c | 6 ++--
fs/f2fs/data.c | 9 +++--
fs/f2fs/segment.c | 14 ++++----
fs/f2fs/super.c | 8 ++---
fs/fuse/control.c | 17 ----------
fs/fuse/dev.c | 8 -----
fs/nfs/sysctl.c | 7 ----
fs/nfs/write.c | 53 +----------------------------
fs/nilfs2/segbuf.c | 11 ------
fs/xfs/xfs_buf.c | 3 --
include/linux/backing-dev-defs.h | 8 -----
include/linux/backing-dev.h | 28 ----------------
include/linux/nfs_fs.h | 1 -
include/linux/nfs_fs_sb.h | 1 -
include/trace/events/writeback.h | 28 ----------------
mm/backing-dev.c | 57 --------------------------------
mm/vmscan.c | 4 +--
24 files changed, 25 insertions(+), 279 deletions(-)
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