[PATCH V4 0/5] Add MMC erase and secure erase V4

[Adrian Hunter]

Hi

Add ability to do MMC erase and secure erase operations from userspace,
using the BLKDISCARD ioctl and a newly created BLKSECDISCARD ioctl.

This is version 4 of these patches.

Changes from V3

- rebased on mmotm
- added SD/MMC device attribute documentation to 'mmc: Add erase,
  secure erase, trim and secure trim operations' patch

Changes from V2

- move the addition of BLKSECDISCARD to a separate patch and implement it
using I/O requests
- move the MMC support of secure discard to a separate patch and support
the secure discard I/O request

Changes from V1

- use discard I/O requests instead of implementing BLKDISCARD in mmc_block
- do not validate erase size for MMC erases, instead round to erase size
- rename MMC max_erase to pref_erase and expose it through sysfs as
preferred_erase_size


Adrian Hunter (5):
      mmc: Add erase, secure erase, trim and secure trim operations
      mmc_block: Add discard support
      omap_hsmmc: Add erase capability
      block: Add secure discard
      mmc_block: Add support for secure discard

 Documentation/00-INDEX              |    2 +
 Documentation/mmc/00-INDEX          |    4 +
 Documentation/mmc/mmc-dev-attrs.txt |   56 ++++++
 block/blk-core.c                    |    5 +-
 block/blk-lib.c                     |    6 +
 block/compat_ioctl.c                |    1 +
 block/elevator.c                    |    6 +
 block/ioctl.c                       |   15 +-
 drivers/mmc/card/block.c            |   82 ++++++++-
 drivers/mmc/card/queue.c            |   19 ++-
 drivers/mmc/core/core.c             |  346 +++++++++++++++++++++++++++++++++++
 drivers/mmc/core/core.h             |    2 +
 drivers/mmc/core/mmc.c              |   47 +++++-
 drivers/mmc/core/sd.c               |   82 ++++++++
 drivers/mmc/core/sd_ops.c           |   48 +++++
 drivers/mmc/core/sd_ops.h           |    1 +
 drivers/mmc/host/omap_hsmmc.c       |   13 +-
 include/linux/bio.h                 |    2 +
 include/linux/blkdev.h              |    7 +-
 include/linux/fs.h                  |    2 +
 include/linux/mmc/card.h            |   19 ++
 include/linux/mmc/core.h            |   19 ++
 include/linux/mmc/host.h            |    1 +
 include/linux/mmc/mmc.h             |   26 ++-
 include/linux/mmc/sd.h              |    5 +
 kernel/trace/blktrace.c             |    8 +
 26 files changed, 803 insertions(+), 21 deletions(-)
 create mode 100644 Documentation/mmc/00-INDEX
 create mode 100644 Documentation/mmc/mmc-dev-attrs.txt


Regards
Adrian

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