bcachefs: Improve trans->extra_journal_entries
Instead of using a darray, we now allocate journal entries for the
transaction commit path with our normal bump allocator - with an inlined
fastpath, and using btree_transaction_stats to remember how much to
initially allocate so as to avoid transaction restarts.
This is prep work for converting write buffer updates to use this
mechanism.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
diff --git a/fs/bcachefs/bcachefs.h b/fs/bcachefs/bcachefs.h
index f33f510..ce66894 100644
--- a/fs/bcachefs/bcachefs.h
+++ b/fs/bcachefs/bcachefs.h
@@ -638,6 +638,7 @@ struct btree_transaction_stats {
struct mutex lock;
unsigned nr_max_paths;
unsigned wb_updates_size;
+ unsigned journal_entries_size;
unsigned max_mem;
char *max_paths_text;
};
