tree b75845fa2424284342869566b3ed5233abecde92
parent df9ecaba3f152d1ea79f2a5e0b87505e03f47590
author NeilBrown <neilb@suse.de> 1157084856 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1157135948 -0700

[PATCH] md: Fix issues with referencing rdev in md/raid1

We need to be careful when referencing mirrors[i].rdev.  It can disappear
under us at various times.

So:
  fix a couple of problem places.
  comment a couple of non-problem places
  move an 'atomic_add' which deferences rdev down a little
    way to some where where it is sure to not be 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>