[PATCHv5 0/8] blk dma iter for integrity metadata

[Keith Busch]

From: Keith Busch <kbusch at kernel.org>

Previous version:

  https://lore.kernel.org/linux-block/20250731150513.220395-1-kbusch@meta.com/

Changes since v4:

 - Fixed nvme initialization for metadata total length (Kanchan)

 - Removed the now unused __REQ_FLAG_P2PDMA (Kanchan)

 - Fixed checks with CONFIG_BLK_DEV_INTEGRITY is not set (lkp at intel.com)

Keith Busch (8):
  blk-mq-dma: 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-pci: create common sgl unmapping helper
  nvme-pci: convert metadata mapping to dma iter

 block/bio.c                   |   2 +-
 block/blk-mq-dma.c            | 239 +++++++++++++++++++++-------------
 drivers/nvme/host/pci.c       | 197 +++++++++++++++-------------
 include/linux/blk-integrity.h |  17 +++
 include/linux/blk-mq-dma.h    |  18 ++-
 include/linux/blk_types.h     |   2 -
 6 files changed, 287 insertions(+), 188 deletions(-)

-- 
2.47.3