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authorChandra Seetharaman <sekharan@us.ibm.com>2008-11-13 23:39:06 +0000
committerAlasdair G Kergon <agk@redhat.com>2008-11-13 23:39:06 +0000
commit14e98c5ca8bed825f65cbf11cb0ffd2c09dac2f4 (patch)
tree62cb7234d156c0523584343796d0e3c89d7a80bf
parentb81aa1c79201cb424114fd198607951900babe18 (diff)
downloadlinux-14e98c5ca8bed825f65cbf11cb0ffd2c09dac2f4.tar.gz
dm mpath: warn if args ignored
Currently dm ignores the parameters provided to hardware handlers
without providing any notifications to the user.

This patch just prints a warning message so that the user knows that
the arguments are ignored.

Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
-rw-r--r--drivers/md/dm-mpath.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 58b1015260fa..3d7f4923cd13 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -708,6 +708,10 @@ static int parse_hw_handler(struct arg_set *as, struct multipath *m)
 		m->hw_handler_name = NULL;
 		return -EINVAL;
 	}
+
+	if (hw_argc > 1)
+		DMWARN("Ignoring user-specified arguments for "
+		       "hardware handler \"%s\"", m->hw_handler_name);
 	consume(as, hw_argc - 1);
 
 	return 0;