[PATCH] md: Assorted little md fixes

- version-1 superblock
  + The default_bitmap_offset is in sectors, not bytes.
  + the 'size' field in the superblock is in sectors, not KB
- raid0_run should return a negative number on error, not '1'
- raid10_read_balance should not return a valid 'disk' number if
     ->rdev turned out to be NULL
- kmem_cache_destroy doesn't like being passed a NULL.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 8f161743e18f..67bb0d046767 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1081,7 +1081,7 @@ static int super_1_validate(mddev_t *mddev, mdk_rdev_t *rdev)
                 mddev->size = le64_to_cpu(sb->size)/2;
                 mddev->events = le64_to_cpu(sb->events);
                 mddev->bitmap_offset = 0;
-                mddev->default_bitmap_offset = 1024;
+                mddev->default_bitmap_offset = 1024 >> 9;
                 
                 mddev->recovery_cp = le64_to_cpu(sb->resync_offset);
                 memcpy(mddev->uuid, sb->set_uuid, 16);
@@ -1162,7 +1162,7 @@ static void super_1_sync(mddev_t *mddev, mdk_rdev_t *rdev)
         sb->cnt_corrected_read = atomic_read(&rdev->corrected_errors);
 
         sb->raid_disks = cpu_to_le32(mddev->raid_disks);
-        sb->size = cpu_to_le64(mddev->size);
+        sb->size = cpu_to_le64(mddev->size<<1);
 
         if (mddev->bitmap && mddev->bitmap_file == NULL) {
                 sb->bitmap_offset = cpu_to_le32((__u32)mddev->bitmap_offset);