Commit c6476ca1 authored by Markus Sütter's avatar Markus Sütter
Browse files

repart: Enable discard option 

systemd-repart can be configured to not automatically issue BLKDISCARD commands
to the underlying hardware.

This PR exposes this option in the repart module.
parent e8b6e8a3

nixos/modules/system/boot/systemd/repart.nix

+14 −0
Original line number Diff line number Diff line
@@ -72,6 +72,19 @@ in 
        example = "require";

        default = "refuse";

      };



      discard = lib.mkOption {

        type = lib.types.bool;

        description = ''

          Controls whether to issue the BLKDISCARD I/O control command on the

          space taken up by any added partitions or on the space in between them.

          Usually, it's a good idea to issue this request since it tells the underlying

          hardware that the covered blocks shall be considered empty, improving performance.



          See {manpage}`systemd-repart(8)` for details.

        '';

        default = true;

      };

    };



    systemd.repart = {
@@ -163,6 +176,7 @@ in 
                                  --definitions=/etc/repart.d \

                                  --dry-run=no \

                                  --empty=${initrdCfg.empty} \

                                  --discard=${lib.boolToString initrdCfg.discard} \

                                  ${lib.optionalString (initrdCfg.device != null) initrdCfg.device}

              ''

            ];