[dm-devel] [PATCH v2 46/54] libmultipath: path_discover(): explain pathinfo flags

[mwilck at suse.com]

From: Martin Wilck <mwilck at suse.com>

Add a comment explaining why we use different flags for "new" and
existing paths.

Signed-off-by: Martin Wilck <mwilck at suse.com>
---
 libmultipath/discovery.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libmultipath/discovery.c b/libmultipath/discovery.c
index 5f4ebf0..64d3473 100644
--- a/libmultipath/discovery.c
+++ b/libmultipath/discovery.c
@@ -137,6 +137,11 @@ path_discover (vector pathvec, struct config * conf,
 				      udevice, flag | DI_BLACKLIST,
 				      NULL);
 	else
+		/*
+		 * Don't use DI_BLACKLIST on paths already in pathvec. We rely
+		 * on the caller to pre-populate the pathvec with valid paths
+		 * only.
+		 */
 		return pathinfo(pp, conf, flag);
 }
 
-- 
2.28.0