tree d7c2844926d96d794d66b974b300eba2d047465e
parent 08a02ecd28bad35a47357e611044dcbeab06e3d7
author NeilBrown <neilb@suse.de> 1178703339 -0700
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1178739057 -0700

md: improve partition detection in md array

md currently uses ->media_changed to make sure rescan_partitions
is call on md array after they are assembled.

However that doesn't happen until the array is opened, which is later
than some people would like.

So use blkdev_ioctl to do the rescan immediately that the
array has been assembled.

This means we can remove all the ->change infrastructure as it was only used
to trigger a partition rescan.

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