usr/src/test/zfs-tests/tests/functional/mmap/mmap_write_001_pos.ksh

   1 #!/bin/ksh -p
   2 #
   3 # CDDL HEADER START
   4 #
   5 # The contents of this file are subject to the terms of the
   6 # Common Development and Distribution License (the "License").
   7 # You may not use this file except in compliance with the License.
   8 #
   9 # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10 # or http://www.opensolaris.org/os/licensing.
  11 # See the License for the specific language governing permissions
  12 # and limitations under the License.
  13 #
  14 # When distributing Covered Code, include this CDDL HEADER in each
  15 # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16 # If applicable, add the following below this CDDL HEADER, with the
  17 # fields enclosed by brackets "[]" replaced with your own identifying
  18 # information: Portions Copyright [yyyy] [name of copyright owner]
  19 #
  20 # CDDL HEADER END
  21 #
  22
  23 #
  24 # Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  25 # Use is subject to license terms.
  26 #
  27
  28 #
  29 # Copyright (c) 2013, 2016 by Delphix. All rights reserved.
  30 #
  31
  32 . $STF_SUITE/include/libtest.shlib
  33
  34 #
  35 # DESCRIPTION:
  36 # Writing to a file and mmaping that file at the
  37 # same time does not result in a deadlock.
  38 #
  39 # STRATEGY:
  40 # 1. Make sure this test executes on multi-processes system.
  41 # 2. Call mmapwrite binary.
  42 # 3. wait 30s and make sure the test file existed.
  43 #
  44
  45 verify_runnable "both"
  46
  47 log_assert "write()s to a file and mmap() that file at the same time does not "\
  48         "result in a deadlock."
  49
  50 # Detect and make sure this test must be executed on a multi-process system
  51 is_mp || log_fail "This test requires a multi-processor system."
  52
  53 log_must chmod 777 $TESTDIR
  54 mmapwrite $TESTDIR/test-write-file &
  55 PID_MMAPWRITE=$!
  56 log_note "mmapwrite $TESTDIR/test-write-file pid: $PID_MMAPWRITE"
  57 log_must sleep 30
  58
  59 log_must kill -9 $PID_MMAPWRITE
  60 log_must ls -l $TESTDIR/test-write-file
  61
  62 log_pass "write(2) a mmap(2)'ing file succeeded."