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bcachefs: expose nocow_lock table in sysfs
Signed-off-by: Daniel Hill <daniel@gluo.nz> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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5250b74d55
commit
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1 changed files with 19 additions and 0 deletions
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@ -194,6 +194,7 @@ read_attribute(btree_key_cache);
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read_attribute(stripes_heap);
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read_attribute(open_buckets);
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read_attribute(write_points);
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read_attribute(nocow_lock_table);
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#ifdef BCH_WRITE_REF_DEBUG
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read_attribute(write_refs);
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@ -476,6 +477,23 @@ SHOW(bch2_fs)
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bch2_write_refs_to_text(out, c);
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#endif
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if (attr == &sysfs_nocow_lock_table) {
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int i, count = 1;
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long last, curr = 0;
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last = atomic_long_read(&c->nocow_locks.l[0].v);
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for (i = 1; i < BUCKET_NOCOW_LOCKS; i++) {
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curr = atomic_long_read(&c->nocow_locks.l[i].v);
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if (last != curr) {
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prt_printf(out, "%li: %d\n", last, count);
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count = 1;
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last = curr;
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} else
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count++;
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}
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prt_printf(out, "%li: %d\n", last, count);
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}
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return 0;
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}
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@ -662,6 +680,7 @@ struct attribute *bch2_fs_internal_files[] = {
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#ifdef BCH_WRITE_REF_DEBUG
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&sysfs_write_refs,
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#endif
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&sysfs_nocow_lock_table,
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&sysfs_io_timers_read,
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&sysfs_io_timers_write,
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