/tests/zfs-tests/tests/functional/snapshot/rollback_003_pos.ksh

https://github.com/adilger/zfs · Korn Shell · 111 lines · 44 code · 23 blank · 44 comment · 5 complexity · 321a0441c03095840290a217ea209933 MD5 · raw file

  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. # Copyright 2009 Sun Microsystems, Inc. All rights reserved.
  24. # Use is subject to license terms.
  25. #
  26. #
  27. # Copyright (c) 2013, 2016 by Delphix. All rights reserved.
  28. #
  29. . $STF_SUITE/include/libtest.shlib
  30. . $STF_SUITE/tests/functional/cli_root/zfs_rollback/zfs_rollback_common.kshlib
  31. . $STF_SUITE/tests/functional/snapshot/snapshot.cfg
  32. #
  33. # DESCRIPTION:
  34. # Verify that rollbacks succeed when there are nested file systems.
  35. #
  36. # STRATEGY:
  37. # 1) Snapshot an empty file system and rollback
  38. # 2) Create a file in the file system
  39. # 3) Rollback the file system to empty
  40. # 4) Create a nested file system with the same name as the file created in (2)
  41. # 5) Verify a rollback succeeds
  42. #
  43. verify_runnable "both"
  44. function cleanup
  45. {
  46. typeset snap=""
  47. typeset fs=""
  48. export __ZFS_POOL_RESTRICT="$TESTPOOL"
  49. log_must zfs mount -a
  50. unset __ZFS_POOL_RESTRICT
  51. for snap in "$SNAPPOOL.1" "$SNAPPOOL"; do
  52. if snapexists $snap; then
  53. destroy_snapshot $snap
  54. fi
  55. done
  56. for fs in "$TESTPOOL/$TESTFILE/$TESTFILE.1" "$TESTPOOL/$TESTFILE"; do
  57. if datasetexists $fs; then
  58. destroy_dataset $fs -r
  59. fi
  60. done
  61. [[ -e /$TESTPOOL ]] && \
  62. log_must rm -rf $TESTPOOL/*
  63. }
  64. log_assert "Verify rollback succeeds when there are nested file systems."
  65. log_onexit cleanup
  66. log_must zfs snapshot $SNAPPOOL
  67. log_must zfs rollback $SNAPPOOL
  68. log_mustnot zfs snapshot $SNAPPOOL
  69. log_must touch /$TESTPOOL/$TESTFILE
  70. log_must zfs rollback $SNAPPOOL
  71. log_must zfs create $TESTPOOL/$TESTFILE
  72. log_must zfs rollback $SNAPPOOL
  73. log_note "Verify rollback of multiple nested file systems succeeds."
  74. log_must zfs snapshot $TESTPOOL/$TESTFILE@$TESTSNAP
  75. log_must zfs snapshot $SNAPPOOL.1
  76. export __ZFS_POOL_RESTRICT="$TESTPOOL"
  77. log_must zfs unmount -a
  78. log_must zfs mount -a
  79. unset __ZFS_POOL_RESTRICT
  80. log_must touch /$TESTPOOL/$TESTFILE/$TESTFILE.1
  81. log_must zfs rollback $SNAPPOOL.1
  82. #
  83. # Workaround for issue #6143. Issuing a `df` seems to properly force any
  84. # negative dcache entries to be invalidated preventing subsequent failures
  85. # when accessing the mount point. Additional investigation required.
  86. #
  87. log_must df
  88. log_pass "Rollbacks succeed when nested file systems are present."