We should be able to distinguish the case where a checker
determines a path to be positively down from the case where
the checker fails to obtain necessary information, e.g.
because of a configuration problem (wrong checker).
Use PATH_WILD for the latter case, as it's hardly used now.
Provide a generic message for the situation that a path
checker can't handle a certain path.
Reviewed-by: Benjamin Marzinski <bmarzins@xxxxxxxxxx>
Signed-off-by: Martin Wilck <mwilck@xxxxxxxx>
---
libmultipath/checkers.c | 1 +
libmultipath/checkers.h | 7 +++++--
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/libmultipath/checkers.c b/libmultipath/checkers.c
index 0bf15f47..b947ddf8 100644
--- a/libmultipath/checkers.c
+++ b/libmultipath/checkers.c
@@ -279,6 +279,7 @@ static const char *generic_msg[CHECKER_LAST_GENERIC_MSGID] = {
[CHECKER_MSGID_UP] = " reports path is up",
[CHECKER_MSGID_DOWN] = " reports path is down",
[CHECKER_MSGID_GHOST] = " reports path is ghost",
+ [CHECKER_MSGID_UNSUPPORTED] = " doesn't support this device",
};
static const char *_checker_message(const struct checker *c)
diff --git a/libmultipath/checkers.h b/libmultipath/checkers.h
index 1d1a116a..dfa60f48 100644
--- a/libmultipath/checkers.h
+++ b/libmultipath/checkers.h
@@ -10,8 +10,10 @@
* Userspace (multipath/multipathd) path states
*
* PATH_WILD:
- * - Use: None of the checkers (returned if we don't have an fd)
- * - Description: Corner case where "fd < 0" for path fd (see checker_check())
+ * - Use: Any checker
+ * - Description: Corner case where "fd < 0" for path fd (see checker_check()),
+ * or where a checker detects an unsupported device
+ * (e.g. wrong checker configured for a given device).
*
* PATH_UNCHECKED:
* - Use: Only in directio checker
@@ -108,6 +110,7 @@ enum {
CHECKER_MSGID_UP,
CHECKER_MSGID_DOWN,
CHECKER_MSGID_GHOST,
+ CHECKER_MSGID_UNSUPPORTED,
CHECKER_LAST_GENERIC_MSGID,
CHECKER_FIRST_MSGID = 100, /* lowest msgid for checkers */
CHECKER_MSGTABLE_SIZE = 100, /* max msg table size for checkers */
--
2.19.1
--
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