3 files changed, 7 insertions, 6 deletions

diff --git a/kernel/exit.c b/kernel/exit.c
index 1a9787ac6173..f86434d7b3d1 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -56,7 +56,7 @@ static void __unhash_process(struct task_struct *p)
                 detach_pid(p, PIDTYPE_PGID);
                 detach_pid(p, PIDTYPE_SID);
 
-                list_del_init(&p->tasks);
+                list_del_rcu(&p->tasks);
                 __get_cpu_var(process_counts)--;
         }
         list_del_rcu(&p->thread_group);
diff --git a/kernel/fork.c b/kernel/fork.c
index 54b15f8cda53..34515772611e 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1204,7 +1204,7 @@ static task_t *copy_process(unsigned long clone_flags,
                         attach_pid(p, PIDTYPE_PGID, process_group(p));
                         attach_pid(p, PIDTYPE_SID, p->signal->session);
 
-                        list_add_tail(&p->tasks, &init_task.tasks);
+                        list_add_tail_rcu(&p->tasks, &init_task.tasks);
                         __get_cpu_var(process_counts)++;
                 }
                 attach_pid(p, PIDTYPE_PID, p->pid);
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index c5863d02c89e..3eeedbb13b78 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -240,14 +240,15 @@ static void copy_data_pages(struct pbe *pblist)
  *      free_pagedir - free pages allocated with alloc_pagedir()
  */
 
-static void free_pagedir(struct pbe *pblist)
+static void free_pagedir(struct pbe *pblist, int clear_nosave_free)
 {
         struct pbe *pbe;
 
         while (pblist) {
                 pbe = (pblist + PB_PAGE_SKIP)->next;
                 ClearPageNosave(virt_to_page(pblist));
-                ClearPageNosaveFree(virt_to_page(pblist));
+                if (clear_nosave_free)
+                        ClearPageNosaveFree(virt_to_page(pblist));
                 free_page((unsigned long)pblist);
                 pblist = pbe;
         }
@@ -389,7 +390,7 @@ struct pbe *alloc_pagedir(unsigned int nr_pages, gfp_t gfp_mask, int safe_needed
                 pbe->next = alloc_image_page(gfp_mask, safe_needed);
         }
         if (!pbe) { /* get_zeroed_page() failed */
-                free_pagedir(pblist);
+                free_pagedir(pblist, 1);
                 pblist = NULL;
         } else
                 create_pbe_list(pblist, nr_pages);
@@ -736,7 +737,7 @@ static int create_image(struct snapshot_handle *handle)
                 pblist = alloc_pagedir(nr_copy_pages, GFP_ATOMIC, 1);
                 if (pblist)
                         copy_page_backup_list(pblist, p);
-                free_pagedir(p);
+                free_pagedir(p, 0);
                 if (!pblist)
                         error = -ENOMEM;
         }