btrfs-progs: check: print separate messages for damaged critical roots

There's an early check of some critical roots right after opening the
filesystem but there's only one message. Check the same roots but print
message for each so it's more specific.

Signed-off-by: David Sterba <dsterba@suse.com>

Author: kdave

check/main.c

@@ -10055,6 +10055,31 @@ static int check_global_roots_uptodate(void)
 	return ret;
 }
 
+/*
+ * Check the bare minimum before starting anything else that could rely on it,
+ * namely the tree roots, any local consistency checks
+ */
+static bool check_early_critical_roots(void)
+{
+	const char msg[] = "critical root %s corrupted, unable to continue";
+	bool ret = false;
+
+	if (!extent_buffer_uptodate(gfs_info->tree_root->node)) {
+		error(msg, "tree_root");
+		ret = true;
+	}
+
+	if (!extent_buffer_uptodate(gfs_info->dev_root->node)) {
+		error(msg, "dev_root");
+		ret = true;
+	}
+	if (!extent_buffer_uptodate(gfs_info->chunk_root->node)) {
+		error(msg, "chunk_root");
+		ret = true;
+	}
+	return ret;
+}
+
 static const char * const cmd_check_usage[] = {
 	"btrfs check [options] <device>",
 	"Check structural integrity of a filesystem (unmounted).",
@@ -10325,16 +10350,8 @@ static int cmd_check(const struct cmd_struct *cmd, int argc, char **argv)
 
 	printf("Checking filesystem on %s\nUUID: %s\n", argv[optind], uuidbuf);
 
-	/*
-	 * Check the bare minimum before starting anything else that could rely
-	 * on it, namely the tree roots, any local consistency checks
-	 */
-	if (!extent_buffer_uptodate(gfs_info->tree_root->node) ||
-	    !extent_buffer_uptodate(gfs_info->dev_root->node) ||
-	    !extent_buffer_uptodate(gfs_info->chunk_root->node)) {
-		error("critical roots corrupted, unable to check the filesystem");
-		err |= !!ret;
-		ret = -EIO;
+	if (check_early_critical_roots()) {
+		err |= 1;
 		goto close_out;
 	}