common/f2fs

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0-only
   3 # Copyright 2020 Google LLC
   4
   5 # Require f2fs compression support on the scratch filesystem.
   6 # Optionally, check for support for a specific compression algorithm.
   7 _require_scratch_f2fs_compression()
   8 {
   9         local algorithm=$1
  10
  11         _require_scratch
  12
  13         if [ ! -e /sys/fs/f2fs/features/compression ]; then
  14                 _notrun "Kernel doesn't support f2fs compression"
  15         fi
  16         # Note: '-O compression' is only accepted when used in
  17         # combination with extra_attr.
  18         if ! _scratch_mkfs -O compression,extra_attr >> $seqres.full; then
  19                 _notrun "f2fs-tools doesn't support compression"
  20         fi
  21         if [ -n "$algorithm" ]; then
  22                 if ! _scratch_mount "-o compress_algorithm=$algorithm"; then
  23                         _notrun "Kernel doesn't support $algorithm compression algorithm for f2fs"
  24                 fi
  25                 _scratch_unmount
  26         fi
  27 }