Merge branch 'master' into upstream-fixes

[linux-2.6-omap-h63xx.git] / mm / mempolicy.c

diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 38f89650bc84962d9209b5035297b173c3b16c44..25788b1b7fcff4b6d116dffab3abe6e1ecc17d08 100644 (file)
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -1136,7 +1136,9 @@ static unsigned interleave_nodes(struct mempolicy *policy)
  */
 unsigned slab_node(struct mempolicy *policy)
 {
-       switch (policy->policy) {
+       int pol = policy ? policy->policy : MPOL_DEFAULT;
+
+       switch (pol) {
        case MPOL_INTERLEAVE:
                return interleave_nodes(policy);
 
@@ -1322,12 +1324,11 @@ struct mempolicy *__mpol_copy(struct mempolicy *old)
        atomic_set(&new->refcnt, 1);
        if (new->policy == MPOL_BIND) {
                int sz = ksize(old->v.zonelist);
-               new->v.zonelist = kmalloc(sz, SLAB_KERNEL);
+               new->v.zonelist = kmemdup(old->v.zonelist, sz, SLAB_KERNEL);
                if (!new->v.zonelist) {
                        kmem_cache_free(policy_cache, new);
                        return ERR_PTR(-ENOMEM);
                }
-               memcpy(new->v.zonelist, old->v.zonelist, sz);
        }
        return new;
 }