[PATCH v2 16/16] btrfs-progs: device scan: add quiet option

[Anand Jain <anand.jain@oracle.com>]

Enable the quiet option to the btrfs(8) device scan command.
Does the job quietly. For example:
 btrfs --quiet device scan

Signed-off-by: Anand Jain <anand.jain@oracle.com>
---
v2: use MUST_LOG

 cmds/device.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/cmds/device.c b/cmds/device.c
index a2c16ecb3034..26ac6d70b427 100644
--- a/cmds/device.c
+++ b/cmds/device.c
@@ -307,6 +307,7 @@ static const char * const cmd_device_scan_usage[] = {
 	" -u|--forget [<device>...]   unregister a given device or all stale devices if no path ",
 	HELPINFO_INSERT_GLOBALS,
 	HELPINFO_INSERT_VERBOSE,
+	HELPINFO_INSERT_QUIET,
 	NULL
 };
 
@@ -357,7 +358,8 @@ static int cmd_device_scan(const struct cmd_struct *cmd, int argc, char **argv)
 				error("cannot unregister devices: %m");
 			}
 		} else {
-			printf("Scanning for Btrfs filesystems\n");
+			pr_verbose(MUST_LOG,
+				   "Scanning for Btrfs filesystems\n");
 			ret = btrfs_scan_devices(1);
 			error_on(ret, "error %d while scanning", ret);
 			ret = btrfs_register_all_devices();
-- 
2.25.1