bcachefs: don't call bch2_bucket_seq_cleanup from journal_buf_switch
journal_buf_switch is called from the foreground when getting a journal
reservation and thus is somewhat latency sensitive;
bch2_bucket_seq_cleanup has to run infrequently but is a bit expensive
when it does run.
Call it from the journal write path instead, and punt the journal write
to worqueue context.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
diff --git a/fs/bcachefs/bcachefs.h b/fs/bcachefs/bcachefs.h
index 57132c7..0c55cc9 100644
--- a/fs/bcachefs/bcachefs.h
+++ b/fs/bcachefs/bcachefs.h
@@ -719,7 +719,7 @@ struct bch_fs {
struct journal journal;
- unsigned bucket_journal_seq;
+ u64 last_bucket_seq_cleanup;
/* The rest of this all shows up in sysfs */
atomic_long_t read_realloc_races;
