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authorKiyoshi Ueda <k-ueda@ct.jp.nec.com>2009-06-22 13:12:36 +0400
committerAlasdair G Kergon <agk@redhat.com>2009-06-22 13:12:36 +0400
commit5d67aa2366ccb8257d103d0b43df855605c3c086 (patch)
tree1d03f2e89ef47773a757f05b17741b8cbe47e882 /drivers/md/dm.h
parente6ee8c0b767540f59e20da3ced282601db8aa502 (diff)
downloadlinux-5d67aa2366ccb8257d103d0b43df855605c3c086.tar.xz
dm: do not set QUEUE_ORDERED_DRAIN if request based
Request-based dm doesn't have barrier support yet. So we need to set QUEUE_ORDERED_DRAIN only for bio-based dm. Since the device type is decided at the first table loading time, the flag set is deferred until then. Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com> Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Acked-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers/md/dm.h')
-rw-r--r--drivers/md/dm.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/dm.h b/drivers/md/dm.h
index a7663eba17e2..23278ae80f08 100644
--- a/drivers/md/dm.h
+++ b/drivers/md/dm.h
@@ -61,6 +61,7 @@ int dm_table_any_congested(struct dm_table *t, int bdi_bits);
int dm_table_any_busy_target(struct dm_table *t);
int dm_table_set_type(struct dm_table *t);
unsigned dm_table_get_type(struct dm_table *t);
+bool dm_table_bio_based(struct dm_table *t);
bool dm_table_request_based(struct dm_table *t);
int dm_table_alloc_md_mempools(struct dm_table *t);
void dm_table_free_md_mempools(struct dm_table *t);