[PATCH v3 0/6] Generic per-sb io stats

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Miklos,

Following your feedback on v2 [1], I moved the iostats to per-sb.

Thanks,
Amir.

[1] https://lore.kernel.org/linux-unionfs/20220228113910.1727819-1-amir73il@xxxxxxxxx/

Changes since v2:
- Change from per-mount to per-sb io stats (szeredi)
- Avoid percpu loop when reading mountstats (dchinner)

Changes since v1:
- Opt-in for per-mount io stats for overlayfs and fuse

Amir Goldstein (6):
  lib/percpu_counter: add helpers for arrays of counters
  fs: add optional iostats counters to struct super_block
  fs: collect per-sb io stats
  fs: report per-sb io stats
  ovl: opt-in for per-sb io stats
  fuse: opt-in for per-sb io stats

 fs/Kconfig                     |   8 +++
 fs/fuse/inode.c                |   5 ++
 fs/nfsd/export.c               |   7 +-
 fs/nfsd/nfscache.c             |   5 +-
 fs/nfsd/stats.c                |  37 +---------
 fs/nfsd/stats.h                |   3 -
 fs/overlayfs/super.c           |   5 ++
 fs/proc_namespace.c            |  16 +++++
 fs/read_write.c                |  88 ++++++++++++++++-------
 fs/super.c                     |   2 +
 include/linux/fs.h             |  10 ++-
 include/linux/fs_iostats.h     | 127 +++++++++++++++++++++++++++++++++
 include/linux/percpu_counter.h |  28 ++++++++
 lib/percpu_counter.c           |  27 +++++++
 14 files changed, 300 insertions(+), 68 deletions(-)
 create mode 100644 include/linux/fs_iostats.h

-- 
2.25.1




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