2 files changed, 62 insertions, 6 deletions

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 58be665bb46b..1f770c16d435 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1588,7 +1588,7 @@ static void print_desc(mdp_disk_t *desc)
                 desc->major,desc->minor,desc->raid_disk,desc->state);
 }
 
-static void print_sb(mdp_super_t *sb)
+static void print_sb_90(mdp_super_t *sb)
 {
         int i;
 
@@ -1619,10 +1619,57 @@ static void print_sb(mdp_super_t *sb)
         }
         printk(KERN_INFO "md:     THIS: ");
         print_desc(&sb->this_disk);
-
 }
 
-static void print_rdev(mdk_rdev_t *rdev)
+static void print_sb_1(struct mdp_superblock_1 *sb)
+{
+        __u8 *uuid;
+
+        uuid = sb->set_uuid;
+        printk(KERN_INFO "md:  SB: (V:%u) (F:0x%08x) Array-ID:<%02x%02x%02x%02x"
+                        ":%02x%02x:%02x%02x:%02x%02x:%02x%02x%02x%02x%02x%02x>\n"
+               KERN_INFO "md:    Name: \"%s\" CT:%llu\n",
+                le32_to_cpu(sb->major_version),
+                le32_to_cpu(sb->feature_map),
+                uuid[0], uuid[1], uuid[2], uuid[3],
+                uuid[4], uuid[5], uuid[6], uuid[7],
+                uuid[8], uuid[9], uuid[10], uuid[11],
+                uuid[12], uuid[13], uuid[14], uuid[15],
+                sb->set_name,
+                (unsigned long long)le64_to_cpu(sb->ctime)
+                       & MD_SUPERBLOCK_1_TIME_SEC_MASK);
+
+        uuid = sb->device_uuid;
+        printk(KERN_INFO "md:       L%u SZ%llu RD:%u LO:%u CS:%u DO:%llu DS:%llu SO:%llu"
+                        " RO:%llu\n"
+               KERN_INFO "md:     Dev:%08x UUID: %02x%02x%02x%02x:%02x%02x:%02x%02x:%02x%02x"
+                        ":%02x%02x%02x%02x%02x%02x\n"
+               KERN_INFO "md:       (F:0x%08x) UT:%llu Events:%llu ResyncOffset:%llu CSUM:0x%08x\n"
+               KERN_INFO "md:         (MaxDev:%u) \n",
+                le32_to_cpu(sb->level),
+                (unsigned long long)le64_to_cpu(sb->size),
+                le32_to_cpu(sb->raid_disks),
+                le32_to_cpu(sb->layout),
+                le32_to_cpu(sb->chunksize),
+                (unsigned long long)le64_to_cpu(sb->data_offset),
+                (unsigned long long)le64_to_cpu(sb->data_size),
+                (unsigned long long)le64_to_cpu(sb->super_offset),
+                (unsigned long long)le64_to_cpu(sb->recovery_offset),
+                le32_to_cpu(sb->dev_number),
+                uuid[0], uuid[1], uuid[2], uuid[3],
+                uuid[4], uuid[5], uuid[6], uuid[7],
+                uuid[8], uuid[9], uuid[10], uuid[11],
+                uuid[12], uuid[13], uuid[14], uuid[15],
+                sb->devflags,
+                (unsigned long long)le64_to_cpu(sb->utime) & MD_SUPERBLOCK_1_TIME_SEC_MASK,
+                (unsigned long long)le64_to_cpu(sb->events),
+                (unsigned long long)le64_to_cpu(sb->resync_offset),
+                le32_to_cpu(sb->sb_csum),
+                le32_to_cpu(sb->max_dev)
+                );
+}
+
+static void print_rdev(mdk_rdev_t *rdev, int major_version)
 {
         char b[BDEVNAME_SIZE];
         printk(KERN_INFO "md: rdev %s, SZ:%08llu F:%d S:%d DN:%u\n",
@@ -1630,8 +1677,15 @@ static void print_rdev(mdk_rdev_t *rdev)
                 test_bit(Faulty, &rdev->flags), test_bit(In_sync, &rdev->flags),
                 rdev->desc_nr);
         if (rdev->sb_loaded) {
-                printk(KERN_INFO "md: rdev superblock:\n");
-                print_sb((mdp_super_t*)page_address(rdev->sb_page));
+                printk(KERN_INFO "md: rdev superblock (MJ:%d):\n", major_version);
+                switch (major_version) {
+                case 0:
+                        print_sb_90((mdp_super_t*)page_address(rdev->sb_page));
+                        break;
+                case 1:
+                        print_sb_1((struct mdp_superblock_1 *)page_address(rdev->sb_page));
+                        break;
+                }
         } else
                 printk(KERN_INFO "md: no rdev superblock!\n");
 }
@@ -1658,7 +1712,7 @@ static void md_print_devices(void)
                 printk("\n");
 
                 list_for_each_entry(rdev, &mddev->disks, same_set)
-                        print_rdev(rdev);
+                        print_rdev(rdev, mddev->major_version);
         }
         printk("md:     **********************************\n");
         printk("\n");
diff --git a/include/linux/raid/md_p.h b/include/linux/raid/md_p.h
index 8b4de4a41ff1..9491026afe66 100644
--- a/include/linux/raid/md_p.h
+++ b/include/linux/raid/md_p.h
@@ -194,6 +194,8 @@ static inline __u64 md_event(mdp_super_t *sb) {
         return (ev<<32)| sb->events_lo;
 }
 
+#define MD_SUPERBLOCK_1_TIME_SEC_MASK ((1ULL<<40) - 1)
+
 /*
  * The version-1 superblock :
  * All numeric fields are little-endian.