btrfs: update message levels for errors

Several messages that point to some internal problem, level INFO is
wrong here.

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 65384de..2a3e225 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -367,7 +367,8 @@
 		ret = 0;
 		goto out;
 	}
-	printk_ratelimited(KERN_INFO "BTRFS (device %s): parent transid verify failed on %llu wanted %llu found %llu\n",
+	printk_ratelimited(KERN_ERR
+	    "BTRFS (device %s): parent transid verify failed on %llu wanted %llu found %llu\n",
 			eb->fs_info->sb->s_id, eb->start,
 			parent_transid, btrfs_header_generation(eb));
 	ret = 1;
@@ -633,21 +634,21 @@
 
 	found_start = btrfs_header_bytenr(eb);
 	if (found_start != eb->start) {
-		printk_ratelimited(KERN_INFO "BTRFS (device %s): bad tree block start "
+		printk_ratelimited(KERN_ERR "BTRFS (device %s): bad tree block start "
 			       "%llu %llu\n",
 			       eb->fs_info->sb->s_id, found_start, eb->start);
 		ret = -EIO;
 		goto err;
 	}
 	if (check_tree_block_fsid(root, eb)) {
-		printk_ratelimited(KERN_INFO "BTRFS (device %s): bad fsid on block %llu\n",
+		printk_ratelimited(KERN_ERR "BTRFS (device %s): bad fsid on block %llu\n",
 			       eb->fs_info->sb->s_id, eb->start);
 		ret = -EIO;
 		goto err;
 	}
 	found_level = btrfs_header_level(eb);
 	if (found_level >= BTRFS_MAX_LEVEL) {
-		btrfs_info(root->fs_info, "bad tree block level %d",
+		btrfs_err(root->fs_info, "bad tree block level %d",
 			   (int)btrfs_header_level(eb));
 		ret = -EIO;
 		goto err;