bcachefs: Add a pre-reserve mechanism for the journal

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2019-02-19 13:41:36 -05:00 • committed by Kent Overstreet
commit 68ef94a63c
5 changed files with 208 additions and 9 deletions