btrfs-progs: mkfs: fix regression preventing --rootdir to create file

Commit 460e93f25754 ("btrfs-progs: mkfs: check the status of file at mkfs")
will try to check the file state before creating fs on it.

The check is mostly fine for normal mkfs case, while for --rootdir
option, it's allowed to create a new file if the destination file
doesn't exist.

Fix it by allowing non-existent file if --rootdir is specified.

Fixes: 460e93f25754 ("btrfs-progs: mkfs: check the status of file at mkfs")
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Tomohiro Misono <misono.tomohiro@jp.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/utils.h b/utils.h
index a82d46f6..860c25d3 100644
--- a/utils.h
+++ b/utils.h
@@ -122,6 +122,7 @@ int set_label(const char *btrfs_dev, const char *label);
 char *__strncpy_null(char *dest, const char *src, size_t n);
 int is_block_device(const char *file);
 int is_mount_point(const char *file);
+int is_path_exist(const char *file);
 int check_arg_type(const char *input);
 int open_path_or_dev_mnt(const char *path, DIR **dirstream, int verbose);
 int btrfs_open(const char *path, DIR **dirstream, int verbose, int dir_only);