tree 90eb6739ad6e0c823595e3f68964e64899d252e0
parent b325a32e5732d7aef70ca3c58acb3953ed20f66c
author NeilBrown <neilb@suse.de> 1126308241 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1126309154 -0700

[PATCH] md: make sure the new 'sb_size' is set properly device added without pre-existing superblock.

There are two ways to add devices to an md/raid array.

  It can have superblock written to it, and then given to the md driver,
  which will read the superblock (the new way)

or

  md can be told (through SET_ARRAY_INFO) the shape of the array, and
  the told about individual drives, and md will create the required
  superblock (the old way).

The newly introduced sb_size was only set for drives being added the
new way, not the old ways.  Oops :-(

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