[v3,0/3] block: show crypto capabilities in sysfs

Message

Eric Biggers Dec. 8, 2021, 1:35 a.m. UTC

This series adds sysfs files that expose the inline encryption
capabilities of request queues.

Patches 1 and 2 are some related cleanups for existing blk-sysfs code.
Patch 3 is the real change; see there for more details.

This is based on top of my other patch series
"[PATCH v2 0/8] docs: consolidate sysfs-block into Documentation/ABI/"
(https://lore.kernel.org/r/[e-mail]).

Changed v2 => v3:
   - Moved the documentation into Documentation/ABI/stable/sysfs-block,
     and improved it a bit.
   - Write "/sys/block/" instead of "/sys/class/block/".
   - Added Reviewed-by tags.

Changed v1 => v2:
   - Use sysfs_emit() instead of sprintf().
   - Use __ATTR_RO().

Eric Biggers (3):
  block: simplify calling convention of elv_unregister_queue()
  block: don't delete queue kobject before its children
  blk-crypto: show crypto capabilities in sysfs

 Documentation/ABI/stable/sysfs-block |  49 ++++++++
 block/Makefile                       |   3 +-
 block/blk-crypto-internal.h          |  12 ++
 block/blk-crypto-sysfs.c             | 172 +++++++++++++++++++++++++++
 block/blk-crypto.c                   |   3 +
 block/blk-sysfs.c                    |  17 ++-
 block/elevator.c                     |   8 +-
 include/linux/blkdev.h               |   1 +
 8 files changed, 255 insertions(+), 10 deletions(-)
 create mode 100644 block/blk-crypto-sysfs.c