From 5b37c4cf86db20762af9fe23224bec313a35ca43 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Mon, 8 Jul 2024 14:38:22 +0200
Subject: [PATCH] mount-tool: show diskseq in --list output

Let's expose the diskseq a bit more prominently.
---
 src/mount/mount-tool.c                | 18 +++++++++++++++++-
 test/units/TEST-74-AUX-UTILS.mount.sh |  2 +-
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/src/mount/mount-tool.c b/src/mount/mount-tool.c
index 1c11cdd5f86..d43db8ffd13 100644
--- a/src/mount/mount-tool.c
+++ b/src/mount/mount-tool.c
@@ -1412,6 +1412,7 @@ static int discover_device(void) {
 static int list_devices(void) {
         enum {
                 COLUMN_NODE,
+                COLUMN_DISKSEQ,
                 COLUMN_PATH,
                 COLUMN_MODEL,
                 COLUMN_WWN,
@@ -1437,7 +1438,7 @@ static int list_devices(void) {
         if (r < 0)
                 return log_error_errno(r, "Failed to add property match: %m");
 
-        table = table_new("node", "path", "model", "wwn", "fstype", "label", "uuid");
+        table = table_new("node", "diskseq", "path", "model", "wwn", "fstype", "label", "uuid");
         if (!table)
                 return log_oom();
 
@@ -1460,6 +1461,21 @@ static int list_devices(void) {
                                 (void) sd_device_get_devname(d, &x);
                                 break;
 
+                        case COLUMN_DISKSEQ: {
+                                uint64_t ds;
+
+                                r = sd_device_get_diskseq(d, &ds);
+                                if (r < 0) {
+                                        log_debug_errno(r, "Failed to get diskseq of block device, ignoring: %m");
+                                        r = table_add_cell(table, NULL, TABLE_EMPTY, NULL);
+                                } else
+                                        r = table_add_cell(table, NULL, TABLE_UINT64, &ds);
+                                if (r < 0)
+                                        return table_log_add_error(r);
+
+                                continue;
+                        }
+
                         case COLUMN_PATH:
                                 (void) sd_device_get_property_value(d, "ID_PATH", &x);
                                 break;
diff --git a/test/units/TEST-74-AUX-UTILS.mount.sh b/test/units/TEST-74-AUX-UTILS.mount.sh
index d440a7c667d..89a391d48e1 100755
--- a/test/units/TEST-74-AUX-UTILS.mount.sh
+++ b/test/units/TEST-74-AUX-UTILS.mount.sh
@@ -146,7 +146,7 @@ test -e /run/media/system/simple.img/foo.bar
 # systemd-mount --list and systemd-umount require the loopback block device is initialized by udevd.
 udevadm settle --timeout 30
 assert_in "/dev/loop.* ext4 +sd-mount-test" "$(systemd-mount --list --full)"
-LOOP_AUTO=$(systemd-mount --list --full --no-legend | awk '$6 == "sd-mount-test" { print $1 }')
+LOOP_AUTO=$(systemd-mount --list --full --no-legend | awk '$7 == "sd-mount-test" { print $1 }')
 LOOP_AUTO_DEVPATH=$(udevadm info --query property --property DEVPATH --value "$LOOP_AUTO")
 systemd-umount "$WORK_DIR/simple.img"
 # Wait for 'change' uevent for the device with DISK_MEDIA_CHANGE=1.
-- 
2.47.3