Add a copy of /proc/mdstat to the mail message send by mdadm --monitor.

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

2 files changed, 13 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index fe22413..79a4322 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -14,6 +14,8 @@ Changes Prior to this release
 	in report.
     -   When using --update=uuid on an array with a bitmap, update the
 	bitmap's uuid too.
+    -   Add a copy of /proc/mdstat to the mail message send by mdadm
+        --monitor.
 
 Changes Prior to 2.4.1 release
     -   Honour --write-mostly when adding to an array without persistent
diff --git a/Monitor.c b/Monitor.c
index 306c43c..6bc7ea1 100644
--- a/Monitor.c
+++ b/Monitor.c
@@ -493,6 +493,7 @@ static void alert(char *event, char *dev, char *disc, char *mailaddr, char *mail
 	     strncmp(event, "Degrade", 7)==0)) {
 		FILE *mp = popen(Sendmail, "w");
 		if (mp) {
+			FILE *mdstat;
 			char hname[256];
 			gethostname(hname, sizeof(hname));
 			signal(SIGPIPE, SIG_IGN);
@@ -512,6 +513,16 @@ static void alert(char *event, char *dev, char *disc, char *mailaddr, char *mail
 				fprintf(mp, "It could be related to component device %s.\n\n", disc);
 
 			fprintf(mp, "Faithfully yours, etc.\n");
+
+			mdstat = fopen("/proc/mdstat", "r");
+			if (mdstat) {
+				char buf[8192];
+				int n;
+				fprintf(mp, "\nP.S. The /proc/mdstat file current contains the following:\n\n");
+				while ( (n=fread(buf, 1, sizeof(buf), mdstat)) > 0)
+					fwrite(buf, 1, n, mp);
+				fclose(mdstat);
+			}
 			fclose(mp);
 		}