MD RAID10: rename mirror_info structure

MD RAID10: Rename the structure 'mirror_info' to 'raid10_info'

The same structure name ('mirror_info') is used by raid1.  Each of these
structures are defined in there respective header files.  If dm-raid is
to support both RAID1 and RAID10, the header files will be included and
the structure names must not collide.

Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
diff --git a/drivers/md/raid10.h b/drivers/md/raid10.h
index 135b1b0..ecdb440 100644
--- a/drivers/md/raid10.h
+++ b/drivers/md/raid10.h
@@ -1,7 +1,7 @@
 #ifndef _RAID10_H
 #define _RAID10_H
 
-struct mirror_info {
+struct raid10_info {
 	struct md_rdev	*rdev, *replacement;
 	sector_t	head_position;
 	int		recovery_disabled;	/* matches
@@ -13,8 +13,8 @@
 
 struct r10conf {
 	struct mddev		*mddev;
-	struct mirror_info	*mirrors;
-	struct mirror_info	*mirrors_new, *mirrors_old;
+	struct raid10_info	*mirrors;
+	struct raid10_info	*mirrors_new, *mirrors_old;
 	spinlock_t		device_lock;
 
 	/* geometry */