tools/testing/selftests/damon/reclaim.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 $ksft_skip
  11 fi
  12
  13 damon_reclaim_enabled="/sys/module/damon_reclaim/parameters/enabled"
  14 if [ ! -f "$damon_reclaim_enabled" ]
  15 then
  16         echo "No 'enabled' file.  Maybe DAMON_RECLAIM 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_reclaim_enabled"
  28
  29 nr_kdamonds=$(pgrep kdamond | wc -l)
  30 if [ "$nr_kdamonds" -ne 1 ]
  31 then
  32         echo "kdamond is not turned on"
  33         exit 1
  34 fi
  35
  36 echo N > "$damon_reclaim_enabled"
  37 nr_kdamonds=$(pgrep kdamond | wc -l)
  38 if [ "$nr_kdamonds" -ne 0 ]
  39 then
  40         echo "kdamond is not turned off"
  41         exit 1
  42 fi