tree 6427a1baca4b818aa2081cbeb5534f2e6b17cf5e
parent ccc0d38ec13d4649d4168c1db590137df53ad783
author NeilBrown <neilb@suse.de> 1244521831 +1000
committer NeilBrown <neilb@suse.de> 1244521831 +1000

md/raid5: use conf->raid_disks in preference to mddev->raid_disk

mddev->raid_disks can be changed and any time by a request from
user-space.  It is a suggestion as to what number of raid_disks is
desired.

conf->raid_disks can only be changed by the raid5 module with suitable
locks in place.  It is a statement as to the current number of
raid_disks.

There are two places where the latter should be used, but the former
is used.  This can lead to a crash when reshaping an array.

This patch changes to mddev-> to conf->

Signed-off-by: NeilBrown <neilb@suse.de>