btrfs-mksnapshot: Create read-only snapshots

diff --git a/btrfs/mksnapshot/btrfs-mksnapshot b/btrfs/mksnapshot/btrfs-mksnapshot
index 3386b471e423ceb17789e2cd8238b901f2c4368e..f380fef5dbfb58d5608876860f32c43cc94b2882 100755 (executable)
--- a/btrfs/mksnapshot/btrfs-mksnapshot
+++ b/btrfs/mksnapshot/btrfs-mksnapshot
@@ -120,6 +120,6 @@ echo "Creating snapshot of \"$VOLUME_PATH\" (\"$VOLUME_NAME\") in btrfs \"$FS_NA
 set -x
 
 cd "$FS_MOUNT_PATH"
-btrfs subvolume snapshot "$VOLUME_NAME" "$NEW_VOLUME_NAME"
+btrfs subvolume snapshot -r "$VOLUME_NAME" "$NEW_VOLUME_NAME"
 find . -maxdepth 1 \( -name "$BASE_VOLUME_NAME" -o \
  -name "$BASE_VOLUME_NAME"@'*' \) -exec ls -1d {} \; | sort | column