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authorKiyoshi Ueda <k-ueda@ct.jp.nec.com>2009-06-22 11:12:36 +0200
committerAlasdair G Kergon <agk@redhat.com>2009-06-22 11:12:36 +0200
commit5d67aa2366ccb8257d103d0b43df855605c3c086 (patch)
tree1d03f2e89ef47773a757f05b17741b8cbe47e882 /drivers/md/dm-table.c
parentdm: enable request based option (diff)
downloadlinux-5d67aa2366ccb8257d103d0b43df855605c3c086.tar.xz
linux-5d67aa2366ccb8257d103d0b43df855605c3c086.zip
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-table.c')
-rw-r--r--drivers/md/dm-table.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index aaeb82ed2852..4899ebe767c8 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -830,6 +830,11 @@ 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;