bcachefs: Initialize ec work structs early

We need to ensure that work structs in bch_fs always get initialized -
otherwise an error in filesystem initialization can pop a warning in the
workqueue code when we try to cancel a work struct that wasn't
initialized.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>

fs/bcachefs/ec.c

@@ -1682,11 +1682,14 @@ void bch2_fs_ec_exit(struct bch_fs *c)
 	bioset_exit(&c->ec_bioset);
 }
 
-int bch2_fs_ec_init(struct bch_fs *c)
+void bch2_fs_ec_init_early(struct bch_fs *c)
 {
 	INIT_WORK(&c->ec_stripe_create_work, ec_stripe_create_work);
 	INIT_WORK(&c->ec_stripe_delete_work, ec_stripe_delete_work);
+}
 
+int bch2_fs_ec_init(struct bch_fs *c)
+{
 	return bioset_init(&c->ec_bioset, 1, offsetof(struct ec_bio, bio),
 			   BIOSET_NEED_BVECS);
 }

fs/bcachefs/ec.h

@@ -224,6 +224,7 @@ void bch2_stripes_heap_to_text(struct printbuf *, struct bch_fs *);
 void bch2_new_stripes_to_text(struct printbuf *, struct bch_fs *);
 
 void bch2_fs_ec_exit(struct bch_fs *);
+void bch2_fs_ec_init_early(struct bch_fs *);
 int bch2_fs_ec_init(struct bch_fs *);
 
 #endif /* _BCACHEFS_EC_H */

fs/bcachefs/super.c

@@ -663,6 +663,7 @@ static struct bch_fs *bch2_fs_alloc(struct bch_sb *sb, struct bch_opts opts)
 	bch2_fs_allocator_foreground_init(c);
 	bch2_fs_rebalance_init(c);
 	bch2_fs_quota_init(c);
+	bch2_fs_ec_init_early(c);
 
 	INIT_LIST_HEAD(&c->list);