dm: allocate blk_mq_tag_set rather than embed in mapped_device

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The blk_mq_tag_set is only needed for dm-mq support.  There is point
wasting space in 'struct mapped_device' for non-dm-mq devices.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> # check kzalloc return

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Mike Snitzer 2016-02-06 17:01:17 -05:00

parent faad87df4b

commit 1c357a1e86

1 changed files with 27 additions and 18 deletions

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45

drivers/md/dm.c

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