bcachefs: Improve nopromote visibilitybcachefs-testing

io_read_nopromote was missing a counter: generally speaking, every
tracepoint should have a matching persistent counter, and vice-versa.

Additionally, improve the tracepoint - switch it to the more modern
fs_str and generate the output with a printbuf, which is much easier to
extend later.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

0 files changed, 0 insertions, 0 deletions