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android / platform / bootable / recovery / 733285fea265af4fc91cf37916fada1a66cec470
commit733285fea265af4fc91cf37916fada1a66cec470[log] [tgz]
authorAlistair Strachan <alistair.strachan@imgtec.com>Thu May 05 16:04:32 2016 -0700
committerAlistair Strachan <alistair.strachan@imgtec.com>Thu May 05 16:04:58 2016 -0700
treeb8ffdee0dae6d2e577436533e59bf00eed021d63
parentecd6e2af5060ba3f7d5c978be6d617d1242f231c [diff]
updater, minzip: Remove unnecessary O_SYNC flags.

Remove O_SYNC from mzExtractRecursive() and PackageExtractFileFn().
These functions deal with extracting whole files from the update
package onto a filesystem. If run on ext4 on a rotating disk, for
example, the O_SYNC flag will cause serious performance problems
and the extraction proecss can take over 30 minutes, with no
obvious benefits.

This API function already calls fsync(fd) after each file is
extracted to ensure data and metadata is written to the underlying
block device, so the O_SYNC calls should be superfluous and safely
removable.

This change does not affect the OTA patch paths or any modification
of the bootloader partition or writes to other 'emmc' partitions.

Signed-off-by: Alistair Strachan <alistair.strachan@imgtec.com>
Change-Id: I9cbb98a98e6278bf5c0d7efaae340773d1fbfcd2
2 files changed
tree: b8ffdee0dae6d2e577436533e59bf00eed021d63
  1. applypatch/
  2. edify/
  3. etc/
  4. fonts/
  5. minadbd/
  6. minui/
  7. minzip/
  8. mtdutils/
  9. otafault/
  10. res-hdpi/
  11. res-mdpi/
  12. res-xhdpi/
  13. res-xxhdpi/
  14. res-xxxhdpi/
  15. tests/
  16. tools/
  17. uncrypt/
  18. update_verifier/
  19. updater/
  20. res-560dpi ⇨ res-xxhdpi
  21. adb_install.cpp
  22. adb_install.h
  23. Android.mk
  24. asn1_decoder.cpp
  25. asn1_decoder.h
  26. bootloader.cpp
  27. bootloader.h
  28. CleanSpec.mk
  29. common.h
  30. default_device.cpp
  31. device.cpp
  32. device.h
  33. fuse_sdcard_provider.cpp
  34. fuse_sdcard_provider.h
  35. fuse_sideload.cpp
  36. fuse_sideload.h
  37. install.cpp
  38. install.h
  39. interlace-frames.py
  40. NOTICE
  41. print_sha1.h
  42. README.md
  43. recovery-persist.cpp
  44. recovery-persist.rc
  45. recovery-refresh.cpp
  46. recovery-refresh.rc
  47. recovery.cpp
  48. roots.cpp
  49. roots.h
  50. screen_ui.cpp
  51. screen_ui.h
  52. ui.cpp
  53. ui.h
  54. verifier.cpp
  55. verifier.h
  56. wear_ui.cpp
  57. wear_ui.h
README.md

The Recovery Image

Quick turn-around testing

mm -j && m ramdisk-nodeps && m recoveryimage-nodeps

# To boot into the new recovery image
# without flashing the recovery partition:
adb reboot bootloader
fastboot boot $ANDROID_PRODUCT_OUT/recovery.img

Running the tests

# After setting up environment and lunch.
mmma -j bootable/recovery

# Running the tests on device.
adb root
adb sync data

# 32-bit device
adb shell /data/nativetest/recovery_unit_test/recovery_unit_test
adb shell /data/nativetest/recovery_component_test/recovery_component_test

# Or 64-bit device
adb shell /data/nativetest64/recovery_unit_test/recovery_unit_test
adb shell /data/nativetest64/recovery_component_test/recovery_component_test