bcachefs: s/usage_lock/mark_lock

better describes what it's for, and we're going to call a new lock
usage_lock

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2018-11-26 00:13:33 -05:00 • committed by Kent Overstreet
commit 9166b41db1
10 changed files with 58 additions and 58 deletions