tools/testing/selftests/damon/lru_sort.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 # Kselftest framework requirement - SKIP code is 4.
   5 ksft_skip=4
   6
   7 if [ $EUID -ne 0 ]
   8 then
   9         echo "Run as root"
  10         exit $ksft_skip
  11 fi
  12
  13 damon_lru_sort_enabled="/sys/module/damon_lru_sort/parameters/enabled"
  14 if [ ! -f "$damon_lru_sort_enabled" ]
  15 then
  16         echo "No 'enabled' file.  Maybe DAMON_LRU_SORT not built"
  17         exit $ksft_skip
  18 fi
  19
  20 nr_kdamonds=$(pgrep kdamond | wc -l)
  21 if [ "$nr_kdamonds" -ne 0 ]
  22 then
  23         echo "Another kdamond is running"
  24         exit $ksft_skip
  25 fi
  26
  27 echo Y > "$damon_lru_sort_enabled"
  28 nr_kdamonds=$(pgrep kdamond | wc -l)
  29 if [ "$nr_kdamonds" -ne 1 ]
  30 then
  31         echo "kdamond is not turned on"
  32         exit 1
  33 fi
  34
  35 echo N > "$damon_lru_sort_enabled"
  36 nr_kdamonds=$(pgrep kdamond | wc -l)
  37 if [ "$nr_kdamonds" -ne 0 ]
  38 then
  39         echo "kdamond is not turned off"
  40         exit 1
  41 fi