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btrfs-progs: restore: output resason why it fails to read root

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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>
This commit is contained in:
Wang Shilong 2014-06-19 09:27:07 +08:00 committed by David Sterba
parent c2059f765d
commit 4cb5168ba6
1 changed files with 2 additions and 1 deletions
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3
cmds-restore.c
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@ -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;