10 files changed, 65 insertions, 13 deletions

diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index caaea6e944f8..af1de0f34eae 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -1863,11 +1863,12 @@ void __audit_syscall_entry(int arch, int major,
 
 /**
  * audit_syscall_exit - deallocate audit context after a system call
- * @pt_regs: syscall registers
+ * @success: success value of the syscall
+ * @return_code: return value of the syscall
  *
  * Tear down after system call.  If the audit context has been marked as
  * auditable (either because of the AUDIT_RECORD_CONTEXT state from
- * filtering, or because some other part of the kernel write an audit
+ * filtering, or because some other part of the kernel wrote an audit
  * message), then write out the syscall information.  In call cases,
  * free the names stored from getname().
  */
diff --git a/kernel/events/callchain.c b/kernel/events/callchain.c
index 057e24b665cf..6581a040f399 100644
--- a/kernel/events/callchain.c
+++ b/kernel/events/callchain.c
@@ -115,8 +115,6 @@ int get_callchain_buffers(void)
         }
 
         err = alloc_callchain_buffers();
-        if (err)
-                release_callchain_buffers();
 exit:
         mutex_unlock(&callchain_mutex);
 
diff --git a/kernel/events/core.c b/kernel/events/core.c
index a8f4ac001a00..32b48c889711 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -815,7 +815,7 @@ static void update_event_times(struct perf_event *event)
          * here.
          */
         if (is_cgroup_event(event))
-                run_end = perf_event_time(event);
+                run_end = perf_cgroup_event_time(event);
         else if (ctx->is_active)
                 run_end = ctx->time;
         else
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 95dd7212e610..29f5b65bee29 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -1077,6 +1077,7 @@ void __kprobes kprobe_flush_task(struct task_struct *tk)
                 /* Early boot.  kretprobe_table_locks not yet initialized. */
                 return;
 
+        INIT_HLIST_HEAD(&empty_rp);
         hash = hash_ptr(tk, KPROBE_HASH_BITS);
         head = &kretprobe_inst_table[hash];
         kretprobe_table_lock(hash, &flags);
@@ -1085,7 +1086,6 @@ void __kprobes kprobe_flush_task(struct task_struct *tk)
                         recycle_rp_inst(ri, &empty_rp);
         }
         kretprobe_table_unlock(hash, &flags);
-        INIT_HLIST_HEAD(&empty_rp);
         hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
                 hlist_del(&ri->hlist);
                 kfree(ri);
diff --git a/kernel/power/process.c b/kernel/power/process.c
index 77274c9ba2f1..eeca00311f39 100644
--- a/kernel/power/process.c
+++ b/kernel/power/process.c
@@ -188,3 +188,22 @@ void thaw_processes(void)
         printk("done.\n");
 }
 
+void thaw_kernel_threads(void)
+{
+        struct task_struct *g, *p;
+
+        pm_nosig_freezing = false;
+        printk("Restarting kernel threads ... ");
+
+        thaw_workqueues();
+
+        read_lock(&tasklist_lock);
+        do_each_thread(g, p) {
+                if (p->flags & (PF_KTHREAD | PF_WQ_WORKER))
+                        __thaw_task(p);
+        } while_each_thread(g, p);
+        read_unlock(&tasklist_lock);
+
+        schedule();
+        printk("done.\n");
+}
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 1cf88900ec4f..6a768e537001 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -812,7 +812,8 @@ unsigned int snapshot_additional_pages(struct zone *zone)
         unsigned int res;
 
         res = DIV_ROUND_UP(zone->spanned_pages, BM_BITS_PER_BLOCK);
-        res += DIV_ROUND_UP(res * sizeof(struct bm_block), PAGE_SIZE);
+        res += DIV_ROUND_UP(res * sizeof(struct bm_block),
+                            LINKED_PAGE_DATA_SIZE);
         return 2 * res;
 }
 
diff --git a/kernel/power/user.c b/kernel/power/user.c
index 6b1ab7a88522..e5a21a857302 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -274,6 +274,15 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd,
                 swsusp_free();
                 memset(&data->handle, 0, sizeof(struct snapshot_handle));
                 data->ready = 0;
+                /*
+                 * It is necessary to thaw kernel threads here, because
+                 * SNAPSHOT_CREATE_IMAGE may be invoked directly after
+                 * SNAPSHOT_FREE.  In that case, if kernel threads were not
+                 * thawed, the preallocation of memory carried out by
+                 * hibernation_snapshot() might run into problems (i.e. it
+                 * might fail or even deadlock).
+                 */
+                thaw_kernel_threads();
                 break;
 
         case SNAPSHOT_PREF_IMAGE_SIZE:
diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
index 88f17b8a3b1d..a58ac285fc69 100644
--- a/kernel/rcutorture.c
+++ b/kernel/rcutorture.c
@@ -56,8 +56,8 @@ static int nreaders = -1;	/* # reader threads, defaults to 2*ncpus */
 static int nfakewriters = 4;    /* # fake writer threads */
 static int stat_interval;       /* Interval between stats, in seconds. */
                                 /*  Defaults to "only at end of test". */
-static int verbose;             /* Print more debug info. */
-static int test_no_idle_hz;     /* Test RCU's support for tickless idle CPUs. */
+static bool verbose;            /* Print more debug info. */
+static bool test_no_idle_hz;    /* Test RCU's support for tickless idle CPUs. */
 static int shuffle_interval = 3; /* Interval between shuffles (in sec)*/
 static int stutter = 5;         /* Start/stop testing interval (in sec) */
 static int irqreader = 1;       /* RCU readers from irq (timers). */
@@ -1399,7 +1399,7 @@ rcu_torture_shutdown(void *arg)
  * Execute random CPU-hotplug operations at the interval specified
  * by the onoff_interval.
  */
-static int
+static int __cpuinit
 rcu_torture_onoff(void *arg)
 {
         int cpu;
@@ -1447,7 +1447,7 @@ rcu_torture_onoff(void *arg)
         return 0;
 }
 
-static int
+static int __cpuinit
 rcu_torture_onoff_init(void)
 {
         if (onoff_interval <= 0)
diff --git a/kernel/res_counter.c b/kernel/res_counter.c
index 6d269cce7aa1..d508363858b3 100644
--- a/kernel/res_counter.c
+++ b/kernel/res_counter.c
@@ -66,6 +66,31 @@ done:
         return ret;
 }
 
+int res_counter_charge_nofail(struct res_counter *counter, unsigned long val,
+                              struct res_counter **limit_fail_at)
+{
+        int ret, r;
+        unsigned long flags;
+        struct res_counter *c;
+
+        r = ret = 0;
+        *limit_fail_at = NULL;
+        local_irq_save(flags);
+        for (c = counter; c != NULL; c = c->parent) {
+                spin_lock(&c->lock);
+                r = res_counter_charge_locked(c, val);
+                if (r)
+                        c->usage += val;
+                spin_unlock(&c->lock);
+                if (r < 0 && ret == 0) {
+                        *limit_fail_at = c;
+                        ret = r;
+                }
+        }
+        local_irq_restore(flags);
+
+        return ret;
+}
 void res_counter_uncharge_locked(struct res_counter *counter, unsigned long val)
 {
         if (WARN_ON(counter->usage < val))
diff --git a/kernel/sched/cpupri.c b/kernel/sched/cpupri.c
index b0d798eaf130..d72586fdf660 100644
--- a/kernel/sched/cpupri.c
+++ b/kernel/sched/cpupri.c
@@ -129,7 +129,7 @@ int cpupri_find(struct cpupri *cp, struct task_struct *p,
  * cpupri_set - update the cpu priority setting
  * @cp: The cpupri context
  * @cpu: The target cpu
- * @pri: The priority (INVALID-RT99) to assign to this CPU
+ * @newpri: The priority (INVALID-RT99) to assign to this CPU
  *
  * Note: Assumes cpu_rq(cpu)->lock is locked
  *
@@ -200,7 +200,6 @@ void cpupri_set(struct cpupri *cp, int cpu, int newpri)
 /**
  * cpupri_init - initialize the cpupri structure
  * @cp: The cpupri context
- * @bootmem: true if allocations need to use bootmem
  *
  * Returns: -ENOMEM if memory fails.
  */