[00/10] shrinker debugging, .to_text() report

Message

Kent Overstreet Aug. 24, 2024, 6:04 p.m. UTC

recently new OOMs have been cropping up, and reclaim is implicated, so
I've had to dust off these patches.

nothing significant has changed since the last time I posted, and they
have been valuable - Dave, think we can get them in?

Kent Overstreet (10):
  seq_buf: seq_buf_human_readable_u64()
  mm: shrinker: Add a .to_text() method for shrinkers
  mm: shrinker: Add new stats for .to_text()
  mm: Centralize & improve oom reporting in show_mem.c
  mm: shrinker: Add shrinker_to_text() to debugfs interface
  bcachefs: shrinker.to_text() methods
  percpu: per_cpu_sum()
  fs: Add super_block->s_inodes_nr
  fs/dcache: Add per-sb accounting for nr dentries
  fs: super_cache_to_text()

 fs/bcachefs/btree_cache.c     | 13 +++++
 fs/bcachefs/btree_key_cache.c | 14 ++++++
 fs/bcachefs/util.h            | 10 ----
 fs/dcache.c                   | 18 ++-----
 fs/inode.c                    |  2 +
 fs/super.c                    | 25 ++++++++++
 include/linux/fs.h            |  2 +
 include/linux/percpu.h        | 10 ++++
 include/linux/seq_buf.h       |  4 ++
 include/linux/shrinker.h      | 13 ++++-
 lib/seq_buf.c                 | 10 ++++
 mm/oom_kill.c                 | 23 ---------
 mm/show_mem.c                 | 43 ++++++++++++++++
 mm/shrinker.c                 | 94 ++++++++++++++++++++++++++++++++++-
 mm/shrinker_debug.c           | 18 +++++++
 mm/slab.h                     |  6 ++-
 mm/slab_common.c              | 52 +++++++++++++++----
 17 files changed, 298 insertions(+), 59 deletions(-)