[PATCHv7 0/9] blk dma iter for integrity metadata

[Keith Busch <kbusch@meta.com>]

From: Keith Busch <kbusch@kernel.org>

Previous version:

  https://lore.kernel.org/linux-block/20250812135210.4172178-1-kbusch@meta.com/

Changes since v6 addressing review feeback from Christoph:

  - Moved the integrity sg conversion to its own patch

  - implemented it in blk-mq-dma.c instead of blk-integrity.c to avoid
    having to shuffling functions and common types around

  - fixed a mistake in v6 that missed using the iter_next helper
    function

  - improved changelog for the patch introducing the scatterless
    integrity mapping

  - nvme cleanups

Keith Busch (9):
  blk-mq-dma: create blk_map_iter type
  blk-mq-dma: provide the bio_vec array 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 scatter-less integrity data DMA mapping
  blk-integrity: use iterator for mapping sg
  nvme-pci: create common sgl unmapping helper
  nvme-pci: convert metadata mapping to dma iter

 block/bio.c                   |   2 +-
 block/blk-integrity.c         |  58 -------
 block/blk-mq-dma.c            | 278 ++++++++++++++++++++++++++--------
 drivers/nvme/host/pci.c       | 197 +++++++++++++-----------
 include/linux/blk-integrity.h |  17 +++
 include/linux/blk-mq-dma.h    |  14 +-
 include/linux/blk_types.h     |   2 -
 7 files changed, 350 insertions(+), 218 deletions(-)

-- 
2.47.3