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Subject[PATCH v2 0/3] Support DAX for device-mapper dm-linear devices
Date
This patch-set adds DAX support to device-mapper dm-linear devices
used by LVM. It works with LVM commands as follows:
- Creation of a logical volume with all DAX capable devices (such
as pmem) sets the logical volume DAX capable as well.
- Once a logical volume is set to DAX capable, the volume may not
be extended with non-DAX capable devices.

The direct_access interface is added to dm and dm-linear to map
a request to a target device.

The patches replace v1 series at:
http://git.kernel.org/cgit/linux/kernel/git/snitzer/linux.git/log/?h=wip

v2:
- Fix issue with partitioning.
- Change to add DAX flag to a request queue.

---
Toshi Kani (3):
1/3 block: add QUEUE_FLAG_DAX for devices to advertise their DAX support
2/3 dm: add infrastructure for DAX support
3/3 dm linear: add DAX support

---
drivers/block/brd.c | 4 +++-
drivers/md/dm-linear.c | 23 ++++++++++++++++++++++-
drivers/md/dm-table.c | 23 ++++++++++++++++++++---
drivers/md/dm.c | 36 +++++++++++++++++++++++++++++++++++-
drivers/md/dm.h | 1 +
drivers/nvdimm/pmem.c | 1 +
drivers/s390/block/dcssblk.c | 1 +
fs/block_dev.c | 5 +++--
include/linux/blkdev.h | 2 ++
include/linux/device-mapper.h | 16 ++++++++++++++++
10 files changed, 104 insertions(+), 8 deletions(-)

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