libblkid: improve UUID_SUB= description

Fixes: https://github.com/util-linux/util-linux/issues/3657
Signed-off-by: Karel Zak <kzak@redhat.com>
(cherry picked from commit fc56a4c50a009ea6850f6c585cbbd53819399ed4)

diff --git a/libblkid/libblkid.3.adoc b/libblkid/libblkid.3.adoc
index 853d12134be7e2e15ab29be4067a2ae6d66fc519..52b05ce3eab5286cedf930541ba5cda04bf37f04 100644 (file)
--- a/libblkid/libblkid.3.adoc
+++ b/libblkid/libblkid.3.adoc
@@ -67,7 +67,7 @@ BLKID_SUBLKS_UUID::
 
 - UUID - filesystem UUID (lower case)
 
-- UUID_SUB - subvolume uuid (e.g. btrfs)
+- UUID_SUB - pool member UUID or device item UUID, etc. (e.g., zfs, btrfs, ...)
 
 - LOGUUID - external log UUID (e.g. xfs)
 

diff --git a/libblkid/src/superblocks/superblocks.c b/libblkid/src/superblocks/superblocks.c
index 82047f18644db499548648052214fb0276918527..ea7d0bcce3f65d1475bbeefd1c23909ae862be2a 100644 (file)
--- a/libblkid/src/superblocks/superblocks.c
+++ b/libblkid/src/superblocks/superblocks.c
@@ -48,7 +48,7 @@
  *
  * @UUID: filesystem UUID (lower case)
  *
- * @UUID_SUB: subvolume uuid (e.g. btrfs)
+ * @UUID_SUB: pool member UUID or device item UUID, etc. (e.g., zfs, btrfs, ...)
  *
  * @LOGUUID: external log UUID (e.g. xfs)
  *