tests/generic/638

   1 #! /bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3 # Copyright (c) 2021 Red Hat Inc.  All Rights Reserved.
   4 #
   5 # FS QA Test 638
   6 #
   7 # This case mmaps several pages of a file, alloc pages, copy data with pages
   8 # overlapping, e.g:
   9 #       +-----------------------+
  10 #       |        (copy)         |
  11 #       |                       V
  12 #    +---------------+---------------+------------
  13 #    |AAAA| ........ |AAAA| ... |AAAA|AAAA|
  14 #    +---------------+---------------+------------
  15 #                       |            ^
  16 #                       |   (copy)   |
  17 #                       +------------+
  18 #
  19 # This's a regression test cover kernel commit:
  20 #   4f06dd92b5d0 ("fuse: fix write deadlock")
  21 #
  22 . ./common/preamble
  23 _begin_fstest auto quick rw
  24
  25 # Import common functions.
  26 . ./common/filter
  27
  28 # real QA test starts here
  29 _supported_fs generic
  30 _require_test
  31 _require_test_program "t_mmap_writev_overlap"
  32
  33 pagesize=`getconf PAGE_SIZE`
  34 testfile=$TEST_DIR/mmap-writev-overlap
  35 $XFS_IO_PROG -f -c "truncate 0" $testfile
  36 $here/src/t_mmap_writev_overlap -b $pagesize -c 2 -l 64 $testfile
  37
  38 echo "Silence is golden"
  39 # success, all done
  40 status=0
  41 exit