Merge tag 'md-3.6-fixes' of git://neil.brown.name/md

Pull two md bugfixes from NeilBrown:
 "One (missing spinlock init) was only introduced recently.  The other
  has been present as long as raid10 has been supported, so is tagged
  for -stable."

* tag 'md-3.6-fixes' of git://neil.brown.name/md:
  md/raid10: fix "enough" function for detecting if array is failed.
  md/raid5: add missing spin_lock_init.

2 files changed, 6 insertions, 3 deletions

diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 1c2eb38f3c51..0138a727c1f3 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1512,14 +1512,16 @@ static int _enough(struct r10conf *conf, struct geom *geo, int ignore)
         do {
                 int n = conf->copies;
                 int cnt = 0;
+                int this = first;
                 while (n--) {
-                        if (conf->mirrors[first].rdev &&
-                            first != ignore)
+                        if (conf->mirrors[this].rdev &&
+                            this != ignore)
                                 cnt++;
-                        first = (first+1) % geo->raid_disks;
+                        this = (this+1) % geo->raid_disks;
                 }
                 if (cnt == 0)
                         return 0;
+                first = (first + geo->near_copies) % geo->raid_disks;
         } while (first != 0);
         return 1;
 }
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 7031b865b3a0..0689173fd9f5 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -1591,6 +1591,7 @@ static int resize_stripes(struct r5conf *conf, int newsize)
                 #ifdef CONFIG_MULTICORE_RAID456
                 init_waitqueue_head(&nsh->ops.wait_for_ops);
                 #endif
+                spin_lock_init(&nsh->stripe_lock);
 
                 list_add(&nsh->lru, &newstripes);
         }