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authorDaniel Hill <daniel@gluo.nz>2022-12-07 18:41:21 +1300
committerKent Overstreet <kent.overstreet@linux.dev>2023-01-06 19:48:01 -0500
commit6dee76743ae0eca9779cd01ef6a4cd6452669090 (patch)
treef64498d1d150fc8d8ee39b83082c8fc4a118b44d
parent93824fb321ad9f9c26c78766ffea1ed019d6d442 (diff)
bcachefs: expose nocow_lock table in sysfs
Signed-off-by: Daniel Hill <daniel@gluo.nz>
-rw-r--r--fs/bcachefs/sysfs.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/fs/bcachefs/sysfs.c b/fs/bcachefs/sysfs.c
index 647d018b5ec9..bad3eafd32d2 100644
--- a/fs/bcachefs/sysfs.c
+++ b/fs/bcachefs/sysfs.c
@@ -194,6 +194,7 @@ read_attribute(btree_cache);
read_attribute(btree_key_cache);
read_attribute(stripes_heap);
read_attribute(open_buckets);
+read_attribute(nocow_lock_table);
read_attribute(internal_uuid);
@@ -445,6 +446,22 @@ SHOW(bch2_fs)
if (attr == &sysfs_data_jobs)
data_progress_to_text(out, c);
+ 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;
}
@@ -627,6 +644,7 @@ struct attribute *bch2_fs_internal_files[] = {
&sysfs_new_stripes,
&sysfs_stripes_heap,
&sysfs_open_buckets,
+ &sysfs_nocow_lock_table,
&sysfs_io_timers_read,
&sysfs_io_timers_write,