tests/generic/519

   1 #! /bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3 # Copyright (c) 2018 Red Hat Inc.  All Rights Reserved.
   4 #
   5 # FS QA Test No. 519
   6 #
   7 # Verify if there's physical address overlap returned by FIBMAP, cover:
   8 # 79b3dbe4adb3 fs: fix iomap_bmap position calculation
   9 #
  10 seq=`basename $0`
  11 seqres=$RESULT_DIR/$seq
  12 echo "QA output created by $seq"
  13
  14 here=`pwd`
  15 tmp=/tmp/$$
  16 status=1        # failure is the default!
  17 trap "_cleanup; exit \$status" 0 1 2 3 15
  18
  19 _cleanup()
  20 {
  21         cd /
  22         rm -f $tmp.*
  23 }
  24
  25 # get standard environment, filters and checks
  26 . ./common/rc
  27 . ./common/filter
  28
  29 # remove previous $seqres.full before test
  30 rm -f $seqres.full
  31
  32 # real QA test starts here
  33 _supported_fs generic
  34 _require_scratch
  35 _require_fibmap
  36 _require_filefrag_options "es"
  37
  38 testfile="$SCRATCH_MNT/$seq-testfile"
  39
  40 # Use filefrag -B option to force the use of the older FIBMAP ioctl instead of
  41 # the FIEMAP ioctl. Then verify if there's map overlap.
  42 verify_filefrag()
  43 {
  44         # record details in .full file
  45         ${FILEFRAG_PROG} -Bes -v $testfile >> $seqres.full
  46
  47         # Due to physical things can't be golden image, so only output logical
  48         # information at here
  49         ${FILEFRAG_PROG} -Be $testfile | _filter_filefrag | \
  50                 cut -d# -f1-2 > $tmp.filefrag
  51
  52         # Verify there's no physical address overlay
  53         awk '
  54                 BEGIN {i=0}
  55                 {
  56                         # create a lines array of the form begin#end offsets
  57                         split($0,res,"#")
  58                         begin=res[1]
  59                         end=begin+res[2]
  60                         lines[i++]=begin"#"end
  61                 }
  62                 END {
  63                         for (i in lines) {
  64                                 for (j in lines) {
  65                                         # Dont check i-th line against itself
  66                                         if (i == j)
  67                                                 continue
  68
  69                                         split(lines[i],i_line,"#")
  70                                         split(lines[j],j_line,"#")
  71                                         v1=i_line[1]
  72                                         v2=i_line[2]
  73                                         e1=j_line[1]
  74                                         e2=j_line[2]
  75                                         # Verify there is not:
  76                                         #       [ e1 ... e2 ]
  77                                         #             [ v1 ... v2 ]
  78                                         # Or:
  79                                         #       [ e1 ... e2 ]
  80                                         # [ v1 ... v2 ]
  81                                         if (! (v1 >= e2 || v2 <= e1))
  82                                                 print "find physical addr overlap " lines[i] " vs " lines[j]
  83                                 }
  84                         }
  85                 }
  86         ' $tmp.filefrag
  87 }
  88
  89 _scratch_mkfs > $seqres.full 2>&1
  90 _scratch_mount
  91
  92 # Test
  93 echo "== FIBMAP on empty file =="
  94 $XFS_IO_PROG -f -c "truncate 0" $testfile > /dev/null
  95 verify_filefrag
  96
  97 echo "== FIBMAP on sparse file =="
  98 $XFS_IO_PROG -f -t -c "pwrite -S 0xaa 0 1m" \
  99              -c "pwrite -S 0xaa 2m 1m" \
 100              -c "pwrite -S 0xaa 4m 1m" \
 101              $testfile > /dev/null
 102 verify_filefrag
 103
 104 # success, all done
 105 status=0
 106 exit