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dm: remove queue next_ordered workaround for barriers

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This patch removes DM's bio-based vs request-based conditional setting
of next_ordered.  For bio-based DM the next_ordered check is no longer a
concern (as that check is now in the __make_request path).  For
request-based DM the default of QUEUE_ORDERED_NONE is now appropriate.

bio-based DM was changed to work-around the previously misplaced
next_ordered check with this commit:
99360b4c18

request-based DM does not yet support barriers but reacted to the above
bio-based DM change with this commit:
5d67aa2366

The above changes are no longer needed given Neil Brown's recent fix to
put the next_ordered check in the __make_request path:
db64f680ba

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Cc: NeilBrown <neilb@suse.de>
Acked-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Acked-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
This commit is contained in:
Mike Snitzer
2009-07-23 20:30:40 +01:00
committed by Alasdair G Kergon
parent 69885683d2
commit a732c207d1
3 changed files with 0 additions and 16 deletions
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5
drivers/md/dm-table.c
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@ -830,11 +830,6 @@ unsigned dm_table_get_type(struct dm_table *t)
return t->type;
}
bool dm_table_bio_based(struct dm_table *t)
{
return dm_table_get_type(t) == DM_TYPE_BIO_BASED;
}
bool dm_table_request_based(struct dm_table *t)
{
return dm_table_get_type(t) == DM_TYPE_REQUEST_BASED;