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[dm-devel] [git pull] device-mapper changes for 3.11



Please pull from:
 
  git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm tags/dm-3.11-changes

to get the following device-mapper changes for 3.11.

Thanks,
Alasdair


----------------------------------------------------------------
Add a device-mapper target called dm-switch to provide a multipath
framework for storage arrays that dynamically reconfigure their
preferred paths for different device regions.

Fix a bug in the verity target that prevented its use with some
specific sizes of devices.

Improve some locking mechanisms in the device-mapper core and bufio.

Add Mike Snitzer as a device-mapper maintainer.

A few more clean-ups and fixes.

----------------------------------------------------------------
Alasdair G Kergon (2):
      dm flakey: correct ctr alloc failure mesg
      dm: update maintainers

Hannes Reinecke (1):
      dm mpath: fix ioctl deadlock when no paths

Jim Ramsay (1):
      dm: add switch target

Mikulas Patocka (9):
      dm ioctl: set noio flag to avoid __vmalloc deadlock
      dm verity: fix inability to use a few specific devices sizes
      dm: use __GFP_HIGHMEM in __vmalloc
      dm verity: remove pointless comparison
      dm verity: use __ffs and __fls
      dm cache: fix arm link errors with inline
      dm bufio: submit writes outside lock
      dm: optimize use SRCU and RCU
      dm: optimize reorder structure

 Documentation/device-mapper/switch.txt |  126 ++++++++
 MAINTAINERS                            |    2 +
 drivers/md/Kconfig                     |   14 +
 drivers/md/Makefile                    |    1 +
 drivers/md/dm-bufio.c                  |   75 ++++-
 drivers/md/dm-cache-target.c           |    4 +
 drivers/md/dm-flakey.c                 |    2 +-
 drivers/md/dm-ioctl.c                  |  127 +++++---
 drivers/md/dm-mpath.c                  |    8 +-
 drivers/md/dm-switch.c                 |  538 ++++++++++++++++++++++++++++++++
 drivers/md/dm-table.c                  |   35 ---
 drivers/md/dm-verity.c                 |   17 +-
 drivers/md/dm.c                        |  177 ++++++-----
 include/linux/device-mapper.h          |    6 +-
 include/uapi/linux/dm-ioctl.h          |    4 +-
 15 files changed, 951 insertions(+), 185 deletions(-)
 create mode 100644 Documentation/device-mapper/switch.txt
 create mode 100644 drivers/md/dm-switch.c


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