[PATCH v2 0/4] target: Fix several problems related to T10-PI support

[Akinobu Mita <akinobu.mita@gmail.com>]

This patchset aims to fix several problems related to T10-PI support.

These patches can be applied on top of Sagi's "[v1] Simlify dif_verify
routines and fixup fileio protection information code" patchset.

* Changes from v1:
- Reduce code duplication a bit in target_read_prot_action()
- Fix sbc_dif_verify() for WRITE_SAME command
- Fix inverted rw argument for fd_do_rw()
- Perform DIF verify before write for WRITE_SAME

Akinobu Mita (4):
  target: ensure se_cmd->t_prot_sg is allocated when required
  target: Abandon odd SG mapping for data transfer memory
  target: Fix sbc_dif_generate() and sbc_dif_verify() for WRITE SAME
  target/file: enable WRITE SAME when protection info is enabled

 drivers/target/target_core_file.c      | 18 ++++++++----
 drivers/target/target_core_sbc.c       | 49 +++++++++++++++++++++++++++++--
 drivers/target/target_core_transport.c | 53 +++++++++++++++++++---------------
 include/target/target_core_backend.h   |  2 +-
 include/target/target_core_base.h      |  1 +
 5 files changed, 91 insertions(+), 32 deletions(-)

Cc: Nicholas Bellinger <nab@linux-iscsi.org>
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: target-devel@vger.kernel.org
Cc: linux-scsi@vger.kernel.org

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1.9.1