[dm-devel] [RFC PATCH] dm-multipath: Print more explicit warnings when dealing with multipath messages
Jose Castillo
jcastillo at redhat.com
Wed Jan 29 16:52:45 UTC 2014
The following warning message "Unrecognised multipath message received" is displayed
in two different situations inside the function multipath_message: when
the number of arguments passed is invalid and when the string passed in argv[0]
is not recognized. With this patch, both warnings are more specific to each case
and is easier to identify where the problem is.
Signed-off-by: Jose Castillo <jcastillo at redhat.com>
---
drivers/md/dm-mpath.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 6eb9dc9..95c4044 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -1552,7 +1552,7 @@ static int multipath_message(struct dm_target *ti, unsigned argc, char **argv)
}
if (argc != 2) {
- DMWARN("Unrecognised multipath message received.");
+ DMWARN("Invalid multipath message arguments. Expected 2 arguments, got %d.", argc);
goto out;
}
@@ -1570,7 +1570,7 @@ static int multipath_message(struct dm_target *ti, unsigned argc, char **argv)
else if (!strcasecmp(argv[0], "fail_path"))
action = fail_path;
else {
- DMWARN("Unrecognised multipath message received.");
+ DMWARN("Unrecognised multipath message received: %s", argv[0]);
goto out;
}
--
1.8.4.2
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