bcachefs: Add a sysfs var for average btree write size

Useful number for performance tuning.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2021-03-31 21:07:37 -04:00 • committed by Kent Overstreet
commit ba5f03d362
3 changed files with 18 additions and 0 deletions