[PATCHv3 0/7] blk dma iter for integrity metadata

[Keith Busch <kbusch@meta.com>]

From: Keith Busch <kbusch@kernel.org>

Previous version:

  https://lore.kernel.org/linux-nvme/20250720184040.2402790-1-kbusch@meta.com/

Changes from v2:

  - introduce the "blk_map_iter" type for the lower level's physical
    address mapping.

 - fixed missing "static inline" for stub functions

 - appened "is_" prefixes to bool types

 - nvme uses the MPTR method when it's a single entry, execpt for user
   commands, which will always use SGL when possible. This nicely
   unifies the setup and teardown for each, too.

Keith Busch (7):
  blk-mq: introduce blk_map_iter
  blk-mq-dma: provide the bio_vec list being iterated
  blk-mq-dma: require unmap caller provide p2p map type
  blk-mq: remove REQ_P2PDMA flag
  blk-mq-dma: move common dma start code to a helper
  blk-mq-dma: add support for mapping integrity metadata
  nvme: convert metadata mapping to dma iter

 block/bio.c                   |   2 +-
 block/blk-mq-dma.c            | 226 ++++++++++++++++++++--------------
 drivers/nvme/host/pci.c       | 181 +++++++++++++--------------
 include/linux/blk-integrity.h |  17 +++
 include/linux/blk-mq-dma.h    |  16 ++-
 include/linux/blk_types.h     |   1 -
 6 files changed, 253 insertions(+), 190 deletions(-)

-- 
2.47.3