From: Keith Busch <kbusch@xxxxxxxxxx>
Handling passthrough metadata ("integrity") today introduces overhead
and complications that we can avoid if we just map user space addresses
directly. This patch series implements that, falling back to a kernel
bounce buffer if necessary.
v4->v5:
Unpin user pages after setup for write commands (Kanchan)
Added reviews to the unchanged patches (Christoph, Martin)
Keith Busch (4):
block: bio-integrity: directly map user buffers
nvme: use bio_integrity_map_user
iouring: remove IORING_URING_CMD_POLLED
io_uring: remove uring_cmd cookie
block/bio-integrity.c | 214 ++++++++++++++++++++++++++++++++++++++
drivers/nvme/host/ioctl.c | 197 ++++++-----------------------------
include/linux/bio.h | 9 ++
include/linux/io_uring.h | 9 +-
io_uring/uring_cmd.c | 1 -
5 files changed, 254 insertions(+), 176 deletions(-)
--
2.34.1
