dm: introduce DM_TYPE_NVME_BIO_BASED

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If dm_table_determine_type() establishes DM_TYPE_NVME_BIO_BASED then
all devices in the DM table do not support partial completions.  Also,
the table has a single immutable target that doesn't require DM core to
split bios.

This will enable adding NVMe optimizations to bio-based DM.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>

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This commit is contained in:

Mike Snitzer 2017-12-04 21:07:37 -05:00

parent f3986374f9

commit 22c11858e8

3 changed files with 51 additions and 6 deletions

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54

drivers/md/dm-table.c

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2

drivers/md/dm.c

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1

include/linux/device-mapper.h

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