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kernel / pub / scm / utils / mdadm / mdadm / a3b831c9e167d1b7fd4f1ec371dc1b95ccf54a5d
commita3b831c9e167d1b7fd4f1ec371dc1b95ccf54a5d[log] [tgz]
authorMariusz Tkaczyk <mariusz.tkaczyk@intel.com>Thu Jan 25 15:12:50 2018 +0100
committerJes Sorensen <jsorensen@fb.com>Thu Jan 25 14:31:47 2018 -0500
treec496186ee5346703aa6e0cf7805e45c7dac633b5
parent31b6f0cdc1f36d92bb233344bbe4a4a01739d37a [diff]
Grow.c: Block any level migration with chunk size change

Mixing level and chunk changes in one grow operation is not supported.
Mdadm performs level migration correctly and ignores new chunk, but
after migration it tries to write this chunk to sysfs properties.
This is dangerous and can cause unexpected behaviours.

Block it before level migration starts.

Signed-off-by: Mariusz Tkaczyk <mariusz.tkaczyk@intel.com>
Signed-off-by: Jes Sorensen <jsorensen@fb.com>
1 file changed
tree: c496186ee5346703aa6e0cf7805e45c7dac633b5
  1. clustermd_tests/
  2. misc/
  3. systemd/
  4. tests/
  5. .gitignore
  6. ANNOUNCE-3.0
  7. ANNOUNCE-3.0.1
  8. ANNOUNCE-3.0.2
  9. ANNOUNCE-3.0.3
  10. ANNOUNCE-3.1
  11. ANNOUNCE-3.1.1
  12. ANNOUNCE-3.1.2
  13. ANNOUNCE-3.1.3
  14. ANNOUNCE-3.1.4
  15. ANNOUNCE-3.1.5
  16. ANNOUNCE-3.2
  17. ANNOUNCE-3.2.1
  18. ANNOUNCE-3.2.2
  19. ANNOUNCE-3.2.3
  20. ANNOUNCE-3.2.4
  21. ANNOUNCE-3.2.5
  22. ANNOUNCE-3.2.6
  23. ANNOUNCE-3.3
  24. ANNOUNCE-3.3.1
  25. ANNOUNCE-3.3.2
  26. ANNOUNCE-3.3.3
  27. ANNOUNCE-3.3.4
  28. ANNOUNCE-3.4
  29. ANNOUNCE-4.0
  30. Assemble.c
  31. bitmap.c
  32. bitmap.h
  33. Build.c
  34. ChangeLog
  35. config.c
  36. COPYING
  37. crc32.c
  38. crc32.h
  39. crc32c.c
  40. Create.c
  41. Detail.c
  42. dlink.c
  43. dlink.h
  44. Dump.c
  45. Examine.c
  46. external-reshape-design.txt
  47. Grow.c
  48. Incremental.c
  49. INSTALL
  50. inventory
  51. Kill.c
  52. lib.c
  53. makedist
  54. Makefile
  55. Manage.c
  56. managemon.c
  57. mapfile.c
  58. maps.c
  59. md.4
  60. md5.h
  61. md_p.h
  62. md_u.h
  63. mdadm.8.in
  64. mdadm.c
  65. mdadm.conf-example
  66. mdadm.conf.5
  67. mdadm.h
  68. mdadm.spec
  69. mdmon-design.txt
  70. mdmon.8
  71. mdmon.c
  72. mdmon.h
  73. mdopen.c
  74. mdstat.c
  75. mkinitramfs
  76. Monitor.c
  77. monitor.c
  78. msg.c
  79. msg.h
  80. part.h
  81. platform-intel.c
  82. platform-intel.h
  83. policy.c
  84. probe_roms.c
  85. probe_roms.h
  86. pwgr.c
  87. Query.c
  88. raid5extend.c
  89. raid6check.8
  90. raid6check.c
  91. ReadMe.c
  92. README.initramfs
  93. restripe.c
  94. sg_io.c
  95. sha1.c
  96. sha1.h
  97. super-ddf.c
  98. super-gpt.c
  99. super-intel.c
  100. super-mbr.c
  101. super0.c
  102. super1.c
  103. swap_super.c
  104. sysfs.c
  105. test
  106. TODO
  107. udev-md-clustered-confirm-device.rules
  108. udev-md-raid-arrays.rules
  109. udev-md-raid-assembly.rules
  110. udev-md-raid-creating.rules
  111. util.c
  112. xmalloc.c