ceph/qa/workunits/rbd/krbd_stable_writes.sh

   1 #!/usr/bin/env bash
   2
   3 set -ex
   4
   5 function assert_dm() {
   6     local name=$1
   7     local val=$2
   8
   9     local devno
  10     devno=$(sudo dmsetup info -c --noheadings -o Major,Minor $name)
  11     grep -q $val /sys/dev/block/$devno/queue/stable_writes
  12 }
  13
  14 function dmsetup_reload() {
  15     local name=$1
  16
  17     local table
  18     table=$(</dev/stdin)
  19
  20     sudo dmsetup suspend $name
  21     echo "$table" | sudo dmsetup reload $name
  22     sudo dmsetup resume $name
  23 }
  24
  25 IMAGE_NAME="stable-writes-test"
  26
  27 rbd create --size 1 $IMAGE_NAME
  28 DEV=$(sudo rbd map $IMAGE_NAME)
  29
  30 fallocate -l 1M loopfile
  31 LOOP_DEV=$(sudo losetup -f --show loopfile)
  32
  33 [[ $(blockdev --getsize64 $DEV) -eq 1048576 ]]
  34 grep -q 1 /sys/block/${DEV#/dev/}/queue/stable_writes
  35
  36 rbd resize --size 2 $IMAGE_NAME
  37 [[ $(blockdev --getsize64 $DEV) -eq 2097152 ]]
  38 grep -q 1 /sys/block/${DEV#/dev/}/queue/stable_writes
  39
  40 cat <<EOF | sudo dmsetup create tbl
  41 0 1024 linear $LOOP_DEV 0
  42 EOF
  43 assert_dm tbl 0
  44 sudo dmsetup remove tbl
  45
  46 cat <<EOF | sudo dmsetup create tbl
  47 0 1024 linear $DEV 0
  48 EOF
  49 assert_dm tbl 1
  50 sudo dmsetup remove tbl
  51
  52 cat <<EOF | sudo dmsetup create tbl
  53 0 1024 linear $LOOP_DEV 0
  54 1024 2048 error
  55 EOF
  56 assert_dm tbl 0
  57 sudo dmsetup remove tbl
  58
  59 cat <<EOF | sudo dmsetup create tbl
  60 0 1024 linear $DEV 0
  61 1024 2048 error
  62 EOF
  63 assert_dm tbl 1
  64 sudo dmsetup remove tbl
  65
  66 cat <<EOF | sudo dmsetup create tbl
  67 0 1024 linear $LOOP_DEV 0
  68 1024 2048 linear $DEV 0
  69 EOF
  70 assert_dm tbl 1
  71 sudo dmsetup remove tbl
  72
  73 cat <<EOF | sudo dmsetup create tbl
  74 0 1024 linear $DEV 0
  75 1024 2048 linear $LOOP_DEV 0
  76 EOF
  77 assert_dm tbl 1
  78 sudo dmsetup remove tbl
  79
  80 cat <<EOF | sudo dmsetup create tbl
  81 0 1024 linear $LOOP_DEV 0
  82 EOF
  83 assert_dm tbl 0
  84 cat <<EOF | dmsetup_reload tbl
  85 0 1024 linear $LOOP_DEV 0
  86 1024 2048 linear $DEV 0
  87 EOF
  88 assert_dm tbl 1
  89 cat <<EOF | dmsetup_reload tbl
  90 0 1024 linear $LOOP_DEV 0
  91 EOF
  92 assert_dm tbl 0
  93 sudo dmsetup remove tbl
  94
  95 cat <<EOF | sudo dmsetup create tbl
  96 0 1024 linear $DEV 0
  97 EOF
  98 assert_dm tbl 1
  99 cat <<EOF | dmsetup_reload tbl
 100 0 1024 linear $DEV 0
 101 1024 2048 linear $LOOP_DEV 0
 102 EOF
 103 assert_dm tbl 1
 104 cat <<EOF | dmsetup_reload tbl
 105 0 1024 linear $DEV 0
 106 EOF
 107 assert_dm tbl 1
 108 sudo dmsetup remove tbl
 109
 110 cat <<EOF | sudo dmsetup create tbl
 111 0 1024 linear $DEV 0
 112 EOF
 113 assert_dm tbl 1
 114 cat <<EOF | dmsetup_reload tbl
 115 0 1024 linear $DEV 0
 116 1024 2048 linear $LOOP_DEV 0
 117 EOF
 118 assert_dm tbl 1
 119 cat <<EOF | dmsetup_reload tbl
 120 0 1024 error
 121 1024 2048 linear $LOOP_DEV 0
 122 EOF
 123 assert_dm tbl 0
 124 cat <<EOF | dmsetup_reload tbl
 125 0 1024 linear $DEV 0
 126 1024 2048 linear $LOOP_DEV 0
 127 EOF
 128 assert_dm tbl 1
 129 cat <<EOF | dmsetup_reload tbl
 130 0 1024 linear $DEV 0
 131 EOF
 132 assert_dm tbl 1
 133 sudo dmsetup remove tbl
 134
 135 sudo losetup -d $LOOP_DEV
 136 rm loopfile
 137
 138 sudo rbd unmap $DEV
 139 rbd rm $IMAGE_NAME
 140
 141 echo OK