From 4cb5168ba61d87b9a9dea371c222880f68b5d6db Mon Sep 17 00:00:00 2001
From: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Date: Thu, 19 Jun 2014 09:27:07 +0800
Subject: [PATCH] btrfs-progs: restore: output resason why it fails to read
root
Previously if restore could not read users specified fs root, it would
output following message:
Error reading root
With this patch, it will output message like:
Fail to read root 1000: No such file or directory
Signed-off-byr Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
---
cmds-restore.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/cmds-restore.c b/cmds-restore.c
index 52c79f9f..afcb3473 100644
--- a/cmds-restore.c
+++ b/cmds-restore.c
@@ -1263,7 +1263,8 @@ int cmd_restore(int argc, char **argv)
key.offset = (u64)-1;
root = btrfs_read_fs_root(orig_root->fs_info, &key);
if (IS_ERR(root)) {
- fprintf(stderr, "Error reading root\n");
+ fprintf(stderr, "fail to read root %llu: %s\n",
+ root_objectid, strerror(-PTR_ERR(root)));
root = orig_root;
ret = 1;
goto out;