X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=mm%2Fmempolicy.c;h=643f66e101878015cbea8b3dc9ac1eb948d2d702;hb=7316ae88c43d47f6503f4c29b4973204e33c3411;hp=bda230e52acd94b0475640c4fd6b97895c6d3b9a;hpb=322aafa6645a48c3b7837ca7385f126ab78127fd;p=pandora-kernel.git

diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index bda230e52acd..643f66e10187 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -1756,10 +1756,12 @@ struct mempolicy *__mpol_dup(struct mempolicy *old)
 
 	if (!new)
 		return ERR_PTR(-ENOMEM);
+	rcu_read_lock();
 	if (current_cpuset_is_being_rebound()) {
 		nodemask_t mems = cpuset_mems_allowed(current);
 		mpol_rebind_policy(old, &mems);
 	}
+	rcu_read_unlock();
 	*new = *old;
 	atomic_set(&new->refcnt, 1);
 	return new;