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 . ./common/preamble
  11 _begin_fstest auto quick
  12
  13 # Import common functions.
  14 . ./common/filter
  15
  16 # real QA test starts here
  17 _supported_fs generic
  18 _require_scratch
  19 _require_fibmap
  20 _require_filefrag_options "es"
  21
  22 testfile="$SCRATCH_MNT/$seq-testfile"
  23
  24 # Use filefrag -B option to force the use of the older FIBMAP ioctl instead of
  25 # the FIEMAP ioctl. Then verify if there's map overlap.
  26 verify_filefrag()
  27 {
  28         # record details in .full file
  29         ${FILEFRAG_PROG} -Bes -v $testfile >> $seqres.full
  30
  31         # Due to physical things can't be golden image, so only output logical
  32         # information at here
  33         ${FILEFRAG_PROG} -Be $testfile | _filter_filefrag | \
  34                 cut -d# -f1-2 > $tmp.filefrag
  35
  36         # Verify there's no physical address overlay
  37         awk '
  38                 BEGIN {i=0}
  39                 {
  40                         # create a lines array of the form begin#end offsets
  41                         split($0,res,"#")
  42                         begin=res[1]
  43                         end=begin+res[2]
  44                         lines[i++]=begin"#"end
  45                 }
  46                 END {
  47                         for (i in lines) {
  48                                 for (j in lines) {
  49                                         # Dont check i-th line against itself
  50                                         if (i == j)
  51                                                 continue
  52
  53                                         split(lines[i],i_line,"#")
  54                                         split(lines[j],j_line,"#")
  55                                         v1=i_line[1]
  56                                         v2=i_line[2]
  57                                         e1=j_line[1]
  58                                         e2=j_line[2]
  59                                         # Verify there is not:
  60                                         #       [ e1 ... e2 ]
  61                                         #             [ v1 ... v2 ]
  62                                         # Or:
  63                                         #       [ e1 ... e2 ]
  64                                         # [ v1 ... v2 ]
  65                                         if (! (v1 >= e2 || v2 <= e1))
  66                                                 print "find physical addr overlap " lines[i] " vs " lines[j]
  67                                 }
  68                         }
  69                 }
  70         ' $tmp.filefrag
  71 }
  72
  73 _scratch_mkfs > $seqres.full 2>&1
  74 _scratch_mount
  75
  76 # Test
  77 echo "== FIBMAP on empty file =="
  78 $XFS_IO_PROG -f -c "truncate 0" $testfile > /dev/null
  79 verify_filefrag
  80
  81 echo "== FIBMAP on sparse file =="
  82 $XFS_IO_PROG -f -t -c "pwrite -S 0xaa 0 1m" \
  83              -c "pwrite -S 0xaa 2m 1m" \
  84              -c "pwrite -S 0xaa 4m 1m" \
  85              $testfile > /dev/null
  86 verify_filefrag
  87
  88 # success, all done
  89 status=0
  90 exit