bcachefs: Switch fsync to use bi_journal_seq

Now that we're recording in each inode the journal sequence number of
the most recent update, fsync becomes a lot simpler and we can delete
all the plumbing for ei_journal_seq.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
This commit is contained in:
Kent Overstreet 2021-11-05 15:17:13 -04:00 • committed by Kent Overstreet
commit 68a2054d88
9 changed files with 65 additions and 96 deletions