dm table: train hybrid target type detection to select blk-mq if appropriate

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Otherwise replacing the multipath target with the error target fails:
  device-mapper: ioctl: can't change device type after initial table load.

The error target was mistakenly considered to be target type
DM_TYPE_REQUEST_BASED rather than DM_TYPE_MQ_REQUEST_BASED even if the
target it was to replace was of type DM_TYPE_MQ_REQUEST_BASED.

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

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This commit is contained in:

Mike Snitzer 2014-12-18 16:26:47 -05:00

parent e5863d9ad7

commit 65803c2059

2 changed files with 22 additions and 16 deletions

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35

drivers/md/dm-table.c

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3

drivers/md/dm.h

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