[PATCH] Add name of md device to name of thread managing that device.

This allows the thread to easily identified and signalled.
The point of signalling will appear in the next patch.

drivers/md/raid1.c

@@ -1184,9 +1184,9 @@ static int run(mddev_t *mddev)
 
 
 	{
-		const char * name = "raid1d";
+		snprintf(conf->thread_name,MD_THREAD_NAME_MAX,"raid1d_md%d",mdidx(mddev));
 
-		conf->thread = md_register_thread(raid1d, conf, name);
+		conf->thread = md_register_thread(raid1d, conf, conf->thread_name);
 		if (!conf->thread) {
 			printk(THREAD_ERROR, mdidx(mddev));
 			goto out_free_conf;

drivers/md/raid5.c

@@ -1477,9 +1477,9 @@ static int run (mddev_t *mddev)
 	}
 
 	{
-		const char * name = "raid5d";
+		snprintf(conf->thread_name,MD_THREAD_NAME_MAX,"raid5d_md%d",mdidx(mddev));
 
-		conf->thread = md_register_thread(raid5d, conf, name);
+		conf->thread = md_register_thread(raid5d, conf, conf->thread_name);
 		if (!conf->thread) {
 			printk(KERN_ERR "raid5: couldn't allocate thread for md%d\n", mdidx(mddev));
 			goto abort;

include/linux/raid/md_k.h

@@ -29,6 +29,7 @@
 #define	LEVEL_LINEAR		(-1)
 
 #define MaxSector (~(sector_t)0)
+#define MD_THREAD_NAME_MAX 14
 
 static inline int pers_to_level (int pers)
 {

include/linux/raid/raid1.h

@@ -34,6 +34,7 @@ struct r1_private_data_s {
 
 	mempool_t *r1bio_pool;
 	mempool_t *r1buf_pool;
+	char thread_name[MD_THREAD_NAME_MAX];
 };
 
 typedef struct r1_private_data_s conf_t;

include/linux/raid/raid5.h

@@ -226,6 +226,7 @@ struct raid5_private_data {
 							 * waiting for 25% to be free
 							 */        
 	spinlock_t		device_lock;
+	char			thread_name[MD_THREAD_NAME_MAX];
 };
 
 typedef struct raid5_private_data raid5_conf_t;