From 1bad43fbe002cd3c00dd82948f19cf73c74e2b75 Mon Sep 17 00:00:00 2001 From: Gui Hecheng Date: Thu, 25 Dec 2014 09:16:35 +0800 Subject: btrfs-progs: refine btrfs-debug-tree error prompt when a mount point given Now, if exec: # btrfs-debug-tree it echos: : Superblock bytenr is larger than device size But it is quite misleading, because it is a valid btrfs. In this case, we should tell the developer to provide a block device. After apply: : '' is not a block device Signed-off-by: Gui Hecheng Reviewed-by: Satoru Takeuchi Signed-off-by: David Sterba --- btrfs-debug-tree.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'btrfs-debug-tree.c') diff --git a/btrfs-debug-tree.c b/btrfs-debug-tree.c index e46500d8..9cdb35f9 100644 --- a/btrfs-debug-tree.c +++ b/btrfs-debug-tree.c @@ -179,6 +179,12 @@ int main(int ac, char **av) if (check_argc_exact(ac, 1)) print_usage(); + ret = check_arg_type(av[optind]); + if (ret != BTRFS_ARG_BLKDEV) { + fprintf(stderr, "'%s' is not a block device\n", av[optind]); + exit(1); + } + info = open_ctree_fs_info(av[optind], 0, 0, OPEN_CTREE_PARTIAL); if (!info) { fprintf(stderr, "unable to open %s\n", av[optind]); -- cgit v1.2.3