[Qemu-devel] [PATCH v4 0/6] Misc improvements to crypto block driver

[Daniel P. Berrange]

This is a followup to

  v1: https://lists.gnu.org/archive/html/qemu-devel/2017-08/msg00781.html
  v2: https://lists.gnu.org/archive/html/qemu-devel/2017-08/msg06464.html
  v3: https://lists.gnu.org/archive/html/qemu-devel/2017-09/msg02923.html

This collection of patches first improves the performance of the
crypto block driver and then does various cleanups to improve ongoing
maint work.

Changed in v4:

  - Drop intermediate patch that replaced '512' with a constant (Max)
  - Use MIN() macro where needed (Max)
  - Fix bounce buffer size at 1MB instead of varying per sector size (Max)
  - Convert missing qcrypto_block_encrypt call to sectors in qcow.c (Max)

Changed in v3:

  - Support passthrough of BDRV_REQ_FUA (Eric)
  - Fix potential truncation of payload offset values (Eric)
  - Use encryption scheme sector size instead of BDRV_SECTOR_SIZE (Kevin)
  - Use QEMU_IS_ALIGNED where appropriate (Eric)
  - Remove unused 'sector_num' variable (Eric)
  - Fix whitespace alignment (Eric)
  - Fix math error in qcow conversion (Eric)

Daniel P. Berrange (6):
  block: use 1 MB bounce buffers for crypto instead of 16KB
  crypto: expose encryption sector size in APIs
  block: fix data type casting for crypto payload offset
  block: convert crypto driver to bdrv_co_preadv|pwritev
  block: convert qcrypto_block_encrypt|decrypt to take bytes offset
  block: support passthrough of BDRV_REQ_FUA in crypto driver

 block/crypto.c         | 130 ++++++++++++++++++++++++++-----------------------
 block/qcow.c           |  11 +++--
 block/qcow2-cluster.c  |   8 ++-
 block/qcow2.c          |   4 +-
 crypto/block-luks.c    |  18 ++++---
 crypto/block-qcow.c    |  13 +++--
 crypto/block.c         |  26 +++++++---
 crypto/blockpriv.h     |   5 +-
 include/crypto/block.h |  29 ++++++++---
 9 files changed, 148 insertions(+), 96 deletions(-)

-- 
2.13.5