diff options
| author | Daniel Hill <daniel@gluo.nz> | 2022-12-07 18:41:21 +1300 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-03-13 11:34:48 -0400 |
| commit | b118aa341d2859b08cbd96630cf24ff9f65c61a6 (patch) | |
| tree | b7093e385a61665dda2ea864d326ba9bea09674a | |
| parent | 5fedc278b0cef8d3f6fd02aa01ba47f6c61fc246 (diff) | |
bcachefs: expose nocow_lock table in sysfs
Signed-off-by: Daniel Hill <daniel@gluo.nz>
| -rw-r--r-- | fs/bcachefs/sysfs.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/fs/bcachefs/sysfs.c b/fs/bcachefs/sysfs.c index f3f19ebda396..57091f90ff2d 100644 --- a/fs/bcachefs/sysfs.c +++ b/fs/bcachefs/sysfs.c @@ -194,6 +194,7 @@ read_attribute(btree_key_cache); read_attribute(stripes_heap); read_attribute(open_buckets); read_attribute(write_points); +read_attribute(nocow_lock_table); #ifdef BCH_WRITE_REF_DEBUG read_attribute(write_refs); @@ -476,6 +477,23 @@ SHOW(bch2_fs) bch2_write_refs_to_text(out, c); #endif + if (attr == &sysfs_nocow_lock_table) { + int i, count = 1; + long last, curr = 0; + + last = atomic_long_read(&c->nocow_locks.l[0].v); + for (i = 1; i < BUCKET_NOCOW_LOCKS; i++) { + curr = atomic_long_read(&c->nocow_locks.l[i].v); + if (last != curr) { + prt_printf(out, "%li: %d\n", last, count); + count = 1; + last = curr; + } else + count++; + } + prt_printf(out, "%li: %d\n", last, count); + } + return 0; } @@ -662,6 +680,7 @@ struct attribute *bch2_fs_internal_files[] = { #ifdef BCH_WRITE_REF_DEBUG &sysfs_write_refs, #endif + &sysfs_nocow_lock_table, &sysfs_io_timers_read, &sysfs_io_timers_write, |