File md-display-timeout-error.patch of Package linux-glibc-devel.29113

From: Hannes Reinecke <hare@suse.com>
Date: Thu, 12 Jul 2012 08:36:52 +0200
Subject: md: display timeout errors in /etc/mdstat etc
Patch-mainline: Not yet, failfast is poorly defined
References: bnc#763402

Track whether a device failed due to a timeout or some other reason.
If due to a timeout, set a flag so that it can be reported.

Acked-by: NeilBrown <neilb@suse.de>
Signed-off-by: Neil Brown <neilb@suse.de>
---
 drivers/md/md.c                |   44 +++++++++++++++++++++++++++++++-------
 drivers/md/md.h                |    3 ++
 drivers/md/raid10.c            |   47 +++++++++++++++++++++++++++++++++++------
 drivers/md/raid10.h            |    1 
 include/uapi/linux/raid/md_p.h |    2 +
 5 files changed, 83 insertions(+), 14 deletions(-)

--- a/include/linux/raid/md_p.h
+++ b/include/linux/raid/md_p.h
@@ -89,6 +89,7 @@
 				    * devices available - and don't try to
 				    * correct read errors.
 				    */
+#define	MD_DISK_TIMEOUT		11 /* disk is faulty due to timeout */
 
 #define	MD_DISK_WRITEMOSTLY	9 /* disk is "write-mostly" is RAID1 config.
 				   * read requests will only be sent here in
@@ -99,6 +100,7 @@
 #define MD_DISK_ROLE_SPARE	0xffff
 #define MD_DISK_ROLE_FAULTY	0xfffe
 #define MD_DISK_ROLE_JOURNAL	0xfffd
+#define MD_DISK_ROLE_TIMEOUT	0xfff0 /* SUSE-only timed-out */
 #define MD_DISK_ROLE_MAX	0xff00 /* max value of regular disk role */
 
 typedef struct mdp_device_descriptor_s {