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[v4,14/20] multipath -u: add DM_MULTIPATH_DEVICE_PATH=2 for "maybe"

Message ID 20180404161627.6244-15-mwilck@suse.com (mailing list archive)
State Not Applicable, archived
Delegated to: christophe varoqui
Headers show

Commit Message

Martin Wilck April 4, 2018, 4:16 p.m. UTC 
Use DM_MULTIPATH_DEVICE_PATH="2" to indicate that this might be a
valid path, but we aren't certain. This happens with find_multipaths
"smart", when the first path to a device (or a single-path
device) is encountered, and the device is neither blacklisted,
nor marked failed, nor whitelisted in the wwids file.

Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Martin Wilck <mwilck@suse.com>
---
 multipath/main.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
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Patch

diff --git a/multipath/main.c b/multipath/main.c
index 942caf4..f62e18a 100644
--- a/multipath/main.c
+++ b/multipath/main.c
@@ -353,7 +353,7 @@  out:
 static int print_cmd_valid(int k, const vector pathvec,
 			   struct config *conf)
 {
-	static const int vals[] = { 1, 0 };
+	static const int vals[] = { 1, 0, 2 };
 
 	if (k < 0 || k >= sizeof(vals))
 		return 1;
@@ -504,6 +504,9 @@  configure (struct config *conf, enum mpath_cmds cmd,
 		 * the refwwid, then the path is valid */
 		if (VECTOR_SIZE(curmp) != 0 || VECTOR_SIZE(pathvec) > 1)
 			r = 0;
+		else
+			/* Use r=2 as an indication for "maybe" */
+			r = 2;
 		goto print_valid;
 	}