Tidy up some argument parsing, particularly for -b

-b only means --brief in MISC mode, elsewhere it is --bitmap.

Resolves-debian-bug: 427777
Signed-off-by: NeilBrown <neilb@suse.de>

mdadm.8

@@ -249,18 +249,6 @@ Avoid printing purely informative messages.  With this,
 .I mdadm
 will be silent unless there is something really important to report.
 
-.TP
-.BR \-b ", " \-\-brief
-Be less verbose.  This is used with
-.B \-\-detail
-and
-.BR \-\-examine .
-Using
-.B \-\-brief
-with
-.B \-\-verbose
-gives an intermediate level of verbosity.
-
 .TP
 .BR \-f ", " \-\-force
 Be more forceful about certain operations.  See the various modes for
@@ -1794,6 +1782,18 @@ For
 .B \-\-scan
 causes all devices listed in the config file to be examined.
 
+.TP
+.BR \-b ", " \-\-brief
+Be less verbose.  This is used with
+.B \-\-detail
+and
+.BR \-\-examine .
+Using
+.B \-\-brief
+with
+.B \-\-verbose
+gives an intermediate level of verbosity.
+
 .SH MONITOR MODE
 
 .HP 12

mdadm.c

@@ -151,13 +151,10 @@ int main(int argc, char *argv[])
 			continue;
 
 		case 'b':
-			if (mode == ASSEMBLE || mode == BUILD || mode == CREATE || mode == GROW)
+			if (mode == ASSEMBLE || mode == BUILD || mode == CREATE || mode == GROW ||
+			    mode == INCREMENTAL || mode == MANAGE)
 				break; /* b means bitmap */
 			brief = 1;
-			if (optarg) {
-				fprintf(stderr, Name ": -b cannot have any extra immediately after it, sorry.\n");
-				exit(2);
-			}
 			continue;
 
 		case 'Y': export++;
@@ -267,7 +264,8 @@ int main(int argc, char *argv[])
 					continue;
 				}
 				/* No mode yet, and this is the second device ... */
-				fprintf(stderr, Name ": An option must be given to set the mode before a second device is listed\n");
+				fprintf(stderr, Name ": An option must be given to set the mode before a second device\n"
+					"       (%s) is listed\n", optarg);
 				exit(2);
 			}
 			if (option_index >= 0)
@@ -874,7 +872,8 @@ int main(int argc, char *argv[])
 				continue;
 			}
 			/* probable typo */
-			fprintf(stderr, Name ": bitmap file must contain a '/', or be 'internal', or 'none'\n");
+			fprintf(stderr, Name ": bitmap file must contain a '/', or be 'internal', or 'none'\n"
+				"       not '%s'\n", optarg);
 			exit(2);
 
 		case O(GROW,BitmapChunk):

mdadm.conf.5

@@ -380,7 +380,7 @@ preceded by plus or minus is allowed and is usually last.
 
 When
 .I mdadm
-is auto-assembling an array, with via
+is auto-assembling an array, either via
 .I --assemble
 or
 .I --incremental