1 files changed, 12 insertions, 2 deletions

diff --git a/kernel/fork.c b/kernel/fork.c
index 2ce28f165e31..e7c181454dca 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -30,6 +30,7 @@
 #include <linux/capability.h>
 #include <linux/cpu.h>
 #include <linux/cpuset.h>
+#include <linux/cgroup.h>
 #include <linux/security.h>
 #include <linux/swap.h>
 #include <linux/syscalls.h>
@@ -979,6 +980,7 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 {
         int retval;
         struct task_struct *p = NULL;
+        int cgroup_callbacks_done = 0;
 
         if ((clone_flags & (CLONE_NEWNS|CLONE_FS)) == (CLONE_NEWNS|CLONE_FS))
                 return ERR_PTR(-EINVAL);
@@ -1088,12 +1090,13 @@ static struct task_struct *copy_process(unsigned long clone_flags,
         p->io_context = NULL;
         p->audit_context = NULL;
         cpuset_fork(p);
+        cgroup_fork(p);
 #ifdef CONFIG_NUMA
         p->mempolicy = mpol_copy(p->mempolicy);
         if (IS_ERR(p->mempolicy)) {
                 retval = PTR_ERR(p->mempolicy);
                 p->mempolicy = NULL;
-                goto bad_fork_cleanup_cpuset;
+                goto bad_fork_cleanup_cgroup;
         }
         mpol_fix_fork_child_flag(p);
 #endif
@@ -1204,6 +1207,12 @@ static struct task_struct *copy_process(unsigned long clone_flags,
         /* Perform scheduler related setup. Assign this task to a CPU. */
         sched_fork(p, clone_flags);
 
+        /* Now that the task is set up, run cgroup callbacks if
+         * necessary. We need to run them before the task is visible
+         * on the tasklist. */
+        cgroup_fork_callbacks(p);
+        cgroup_callbacks_done = 1;
+
         /* Need tasklist lock for parent etc handling! */
         write_lock_irq(&tasklist_lock);
 
@@ -1318,9 +1327,10 @@ bad_fork_cleanup_security:
 bad_fork_cleanup_policy:
 #ifdef CONFIG_NUMA
         mpol_free(p->mempolicy);
-bad_fork_cleanup_cpuset:
+bad_fork_cleanup_cgroup:
 #endif
         cpuset_exit(p);
+        cgroup_exit(p, cgroup_callbacks_done);
 bad_fork_cleanup_delays_binfmt:
         delayacct_tsk_free(p);
         if (p->binfmt)