bcachefs: Print devices we're mounting on multi device filesystems

Previously, we only ever logged the filesystem UUID.

Signed-off-by: Kent Overstreet <[email protected]>

Author: Kent Overstreet

fs/bcachefs/super.c

@@ -1067,12 +1067,13 @@ noinline_for_stack
 static void print_mount_opts(struct bch_fs *c)
 {
 	enum bch_opt_id i;
-	struct printbuf p = PRINTBUF;
-	bool first = true;
+	CLASS(printbuf, p)();
+	bch2_log_msg_start(c, &p);
 
 	prt_str(&p, "starting version ");
 	bch2_version_to_text(&p, c->sb.version);
 
+	bool first = true;
 	for (i = 0; i < bch2_opts_nr; i++) {
 		const struct bch_option *opt = &bch2_opt_table[i];
 		u64 v = bch2_opt_get_by_id(&c->opts, i);
@@ -1089,17 +1090,24 @@ static void print_mount_opts(struct bch_fs *c)
 	}
 
 	if (c->sb.version_incompat_allowed != c->sb.version) {
-		prt_printf(&p, "\n  allowing incompatible features above ");
+		prt_printf(&p, "\nallowing incompatible features above ");
 		bch2_version_to_text(&p, c->sb.version_incompat_allowed);
 	}
 
 	if (c->opts.verbose) {
-		prt_printf(&p, "\n  features: ");
+		prt_printf(&p, "\nfeatures: ");
 		prt_bitflags(&p, bch2_sb_features, c->sb.features);
 	}
 
-	bch_info(c, "%s", p.buf);
-	printbuf_exit(&p);
+	if (c->sb.multi_device) {
+		prt_printf(&p, "\nwith devices");
+		for_each_online_member(c, ca, BCH_DEV_READ_REF_bch2_online_devs) {
+			prt_char(&p, ' ');
+			prt_str(&p, ca->name);
+		}
+	}
+
+	bch2_print_str(c, KERN_INFO, p.buf);
 }
 
 static bool bch2_fs_may_start(struct bch_fs *c)