1 files changed, 4 insertions, 6 deletions

diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
index 98702b4b8851..ea567b78d1aa 100644
--- a/kernel/pid_namespace.c
+++ b/kernel/pid_namespace.c
@@ -12,6 +12,7 @@
 #include <linux/pid_namespace.h>
 #include <linux/syscalls.h>
 #include <linux/err.h>
+#include <linux/acct.h>
 
 #define BITS_PER_PAGE           (PAGE_SIZE*8)
 
@@ -71,7 +72,7 @@ static struct pid_namespace *create_pid_namespace(unsigned int level)
         struct pid_namespace *ns;
         int i;
 
-        ns = kmem_cache_alloc(pid_ns_cachep, GFP_KERNEL);
+        ns = kmem_cache_zalloc(pid_ns_cachep, GFP_KERNEL);
         if (ns == NULL)
                 goto out;
 
@@ -84,17 +85,13 @@ static struct pid_namespace *create_pid_namespace(unsigned int level)
                 goto out_free_map;
 
         kref_init(&ns->kref);
-        ns->last_pid = 0;
-        ns->child_reaper = NULL;
         ns->level = level;
 
         set_bit(0, ns->pidmap[0].page);
         atomic_set(&ns->pidmap[0].nr_free, BITS_PER_PAGE - 1);
 
-        for (i = 1; i < PIDMAP_ENTRIES; i++) {
-                ns->pidmap[i].page = NULL;
+        for (i = 1; i < PIDMAP_ENTRIES; i++)
                 atomic_set(&ns->pidmap[i].nr_free, BITS_PER_PAGE);
-        }
 
         return ns;
 
@@ -185,6 +182,7 @@ void zap_pid_ns_processes(struct pid_namespace *pid_ns)
 
         /* Child reaper for the pid namespace is going away */
         pid_ns->child_reaper = NULL;
+        acct_exit_ns(pid_ns);
         return;
 }