Allow /etc/mdadm/mdadm.conf as an alternate to /etc/mdadm.conf

This provide compatability with Debian.

Signed-off-by: Neil Brown <neilb@suse.de>

2 files changed, 21 insertions, 1 deletions

diff --git a/ChangeLog b/ChangeLog
index 010d06c..e0f6cb5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Changes Prior to this release
+    -   Try /etc/mdadm/mdadm.conf if /etc/mdadm.conf doesn't exist.
+	This provided compatability for Debian.
+
 Changes Prior to 2.2 release
     -   Assorted bug fixes
     -   Support write-intent-bitmaps on raid10
diff --git a/config.c b/config.c
index b444515..c09c206 100644
--- a/config.c
+++ b/config.c
@@ -70,7 +70,12 @@
 #ifndef CONFFILE
 #define CONFFILE "/etc/mdadm.conf"
 #endif
+#ifndef CONFFILE2
+/* for Debian compatibility .... */
+#define CONFFILE2 "/etc/mdadm/mdadm.conf"
+#endif
 char DefaultConfFile[] = CONFFILE;
+char DefaultAltConfFile[] = CONFFILE2;
 
 char *keywords[] = { "device", "array", "mailaddr", "program", NULL };
 
@@ -455,7 +460,18 @@ void load_conffile(char *conffile)
 		return;
 	}
 	f = fopen(conffile, "r");
-	if (f ==NULL)
+	/* Debian chose to relocate mdadm.conf into /etc/mdadm/.
+	 * To allow Debian users to compile from clean source and still
+	 * have a working mdadm, we read /etc/mdadm/mdadm.conf
+	 * if /etc/mdadm.conf doesn't exist
+	 */
+	if (f == NULL &&
+	    conffile == DefaultConfFile) {
+		f = fopen(DefaultAltConfFile, "r");
+		if (f)
+			conffile = DefaultAltConfFile;
+	}
+	if (f == NULL)
 		return;
 
 	loaded = 1;