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btrfs-progs: fi show: print error message if no valid Btrfs is specified 

* Before this patch

 ===============================
 # ./btrfs fi show foo      # "foo" doesn't mean any valid Btrfs
 #                          # no error message
 # echo $?
 1
 ===============================

* After this patch

 ===============================
 # ./btrfs fi show foo
 ERROR: foo is not a valid Btrfs
 #
 # echo $?
 1
 ===============================

Signed-off-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Satoru Takeuchi 2016-06-24 17:24:47 +09:00 committed by David Sterba
parent cd9b35c37a
commit 034643237a
1 changed files with 3 additions and 2 deletions
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5
cmds-filesystem.c
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@ -898,9 +898,10 @@ devs_only:
list_for_each_entry(fs_devices, &all_uuids, list)
print_one_uuid(fs_devices, unit_mode);
if (search && !found)
if (search && !found) {
error("not a valid btrfs filesystem: %s", search);
ret = 1;
}
while (!list_empty(&all_uuids)) {
fs_devices = list_entry(all_uuids.next,
struct btrfs_fs_devices, list);