[PATCH v2 0/3] implement direct IO with integrity

["Alexander V. Buev" <a.buev@yadro.com>]

This series of patches makes possible to do direct block IO
with integrity payload using io uring kernel interface.
Userspace app can utilize new READV_PI/WRITEV_PI operation with a new
fields in sqe struct (pi_addr/pi_len) to provide iovec's with
integrity data.

Changes since v1:
 - switch to using separated io uring op codes and additional
   sqe fields (instead of sqe flag)
 - ability to process multiple iovecs
 - use unused space in bio to pin user pages

Alexander V. Buev (3):
  block: bio-integrity: add PI iovec to bio
  block: io_uring: add READV_PI/WRITEV_PI operations
  block: fops: handle IOCB_USE_PI in direct IO

 block/bio-integrity.c           | 151 +++++++++++++++++++++++
 block/fops.c                    |  62 ++++++++++
 fs/io_uring.c                   | 209 ++++++++++++++++++++++++++++++++
 include/linux/bio.h             |   8 ++
 include/linux/fs.h              |   2 +
 include/trace/events/io_uring.h |  17 +--
 include/uapi/linux/io_uring.h   |   6 +-
 include/uapi/linux/uio.h        |   3 +-
 8 files changed, 449 insertions(+), 9 deletions(-)

-- 
2.34.1