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review.shift-gmbh.com / SHIFTPHONES / android_system_vold / 6c5e453f9ee8363e970c7b5e2be503879089c3c3
commit6c5e453f9ee8363e970c7b5e2be503879089c3c3[log] [tgz]
authorJaegeuk Kim <jaegeuk@google.com>Thu Aug 08 09:07:58 2019 -0700
committerJaegeuk Kim <jaegeuk@google.com>Mon Aug 12 15:31:10 2019 +0000
tree75fcfe099b2e06475532ca859aa093fad2f7a612
parent7d43cb0ae91322a58cef7f92225d00c2dd1f201a [diff]
secdiscard: should call fsync to avoid reordering IOs

Don't make stale zero'ing IO in block device after unlink, since filesystem
can reuse the block addresses and issue some IOs. If block layer reordered
two IOs, filesystem will see zero data, which crashes filesystem consistency.

Bug: 136964285
Test: run cts -m CtsDevicePolicyManagerTestCases -t com.android.cts.devicepolicy.CrossProfileAppsHostSideTest
Change-Id: I43c13622d094cecda1c53468adc240002111d605
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
1 file changed
tree: 75fcfe099b2e06475532ca859aa093fad2f7a612
  1. bench/
  2. binder/
  3. fs/
  4. model/
  5. tests/
  6. .clang-format
  7. Android.bp
  8. AppFuseUtil.cpp
  9. AppFuseUtil.h
  10. Benchmark.cpp
  11. Benchmark.h
  12. BenchmarkGen.h
  13. CheckEncryption.cpp
  14. CheckEncryption.h
  15. Checkpoint.cpp
  16. Checkpoint.h
  17. CleanSpec.mk
  18. cryptfs.cpp
  19. cryptfs.h
  20. Devmapper.cpp
  21. Devmapper.h
  22. EncryptInplace.cpp
  23. EncryptInplace.h
  24. FileDeviceUtils.cpp
  25. FileDeviceUtils.h
  26. FsCrypt.cpp
  27. FsCrypt.h
  28. IdleMaint.cpp
  29. IdleMaint.h
  30. KeyBuffer.cpp
  31. KeyBuffer.h
  32. Keymaster.cpp
  33. Keymaster.h
  34. KeyStorage.cpp
  35. KeyStorage.h
  36. KeyUtil.cpp
  37. KeyUtil.h
  38. Loop.cpp
  39. Loop.h
  40. main.cpp
  41. MetadataCrypt.cpp
  42. MetadataCrypt.h
  43. MoveStorage.cpp
  44. MoveStorage.h
  45. NetlinkHandler.cpp
  46. NetlinkHandler.h
  47. NetlinkManager.cpp
  48. NetlinkManager.h
  49. OWNERS
  50. PREUPLOAD.cfg
  51. Process.cpp
  52. Process.h
  53. ScryptParameters.cpp
  54. ScryptParameters.h
  55. secdiscard.cpp
  56. sehandle.h
  57. Utils.cpp
  58. Utils.h
  59. vdc.cpp
  60. vdc.rc
  61. vold.rc
  62. vold_prepare_subdirs.cpp
  63. VoldNativeService.cpp
  64. VoldNativeService.h
  65. VoldUtil.cpp
  66. VoldUtil.h
  67. VolumeManager.cpp
  68. VolumeManager.h
  69. wait_for_keymaster.cpp
  70. wait_for_keymaster.rc