82 files changed, 225 insertions, 190 deletions

diff --git a/kernel/async.c b/kernel/async.c
index 4c2843c0043e..80b74b88fefe 100644
--- a/kernel/async.c
+++ b/kernel/async.c
@@ -51,7 +51,7 @@ asynchronous and synchronous parts of the kernel.
 #include <linux/async.h>
 #include <linux/atomic.h>
 #include <linux/ktime.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/wait.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
diff --git a/kernel/audit.c b/kernel/audit.c
index 0a1355ca3d79..09fae2677a45 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -45,7 +45,7 @@
 #include <asm/types.h>
 #include <linux/atomic.h>
 #include <linux/mm.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/slab.h>
 #include <linux/err.h>
 #include <linux/kthread.h>
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index ce4b054acee5..47b7fc1ea893 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -48,7 +48,7 @@
 #include <linux/fs.h>
 #include <linux/namei.h>
 #include <linux/mm.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/slab.h>
 #include <linux/mount.h>
 #include <linux/socket.h>
diff --git a/kernel/capability.c b/kernel/capability.c
index 283c529f8b1c..b463871a4e69 100644
--- a/kernel/capability.c
+++ b/kernel/capability.c
@@ -10,7 +10,7 @@
 #include <linux/audit.h>
 #include <linux/capability.h>
 #include <linux/mm.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/security.h>
 #include <linux/syscalls.h>
 #include <linux/pid_namespace.h>
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 453100a4159d..d9d5648f3cdc 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -2027,7 +2027,7 @@ int cgroup_attach_proc(struct cgroup *cgrp, struct task_struct *leader)
                 goto out_free_group_list;
 
         /* prevent changes to the threadgroup list while we take a snapshot. */
-        rcu_read_lock();
+        read_lock(&tasklist_lock);
         if (!thread_group_leader(leader)) {
                 /*
                  * a race with de_thread from another thread's exec() may strip
@@ -2036,7 +2036,7 @@ int cgroup_attach_proc(struct cgroup *cgrp, struct task_struct *leader)
                  * throw this task away and try again (from cgroup_procs_write);
                  * this is "double-double-toil-and-trouble-check locking".
                  */
-                rcu_read_unlock();
+                read_unlock(&tasklist_lock);
                 retval = -EAGAIN;
                 goto out_free_group_list;
         }
@@ -2057,7 +2057,7 @@ int cgroup_attach_proc(struct cgroup *cgrp, struct task_struct *leader)
         } while_each_thread(leader, tsk);
         /* remember the number of threads in the array for later. */
         group_size = i;
-        rcu_read_unlock();
+        read_unlock(&tasklist_lock);
 
         /*
          * step 1: check that we can legitimately attach to the cgroup.
@@ -2135,14 +2135,17 @@ int cgroup_attach_proc(struct cgroup *cgrp, struct task_struct *leader)
                 oldcgrp = task_cgroup_from_root(tsk, root);
                 if (cgrp == oldcgrp)
                         continue;
-                /* attach each task to each subsystem */
-                for_each_subsys(root, ss) {
-                        if (ss->attach_task)
-                                ss->attach_task(cgrp, tsk);
-                }
                 /* if the thread is PF_EXITING, it can just get skipped. */
                 retval = cgroup_task_migrate(cgrp, oldcgrp, tsk, true);
-                BUG_ON(retval != 0 && retval != -ESRCH);
+                if (retval == 0) {
+                        /* attach each task to each subsystem */
+                        for_each_subsys(root, ss) {
+                                if (ss->attach_task)
+                                        ss->attach_task(cgrp, tsk);
+                        }
+                } else {
+                        BUG_ON(retval != -ESRCH);
+                }
         }
         /* nothing is sensitive to fork() after this point. */
 
@@ -4880,9 +4883,9 @@ void free_css_id(struct cgroup_subsys *ss, struct cgroup_subsys_state *css)
 
         rcu_assign_pointer(id->css, NULL);
         rcu_assign_pointer(css->id, NULL);
-        spin_lock(&ss->id_lock);
+        write_lock(&ss->id_lock);
         idr_remove(&ss->idr, id->id);
-        spin_unlock(&ss->id_lock);
+        write_unlock(&ss->id_lock);
         kfree_rcu(id, rcu_head);
 }
 EXPORT_SYMBOL_GPL(free_css_id);
@@ -4908,10 +4911,10 @@ static struct css_id *get_new_cssid(struct cgroup_subsys *ss, int depth)
                 error = -ENOMEM;
                 goto err_out;
         }
-        spin_lock(&ss->id_lock);
+        write_lock(&ss->id_lock);
         /* Don't use 0. allocates an ID of 1-65535 */
         error = idr_get_new_above(&ss->idr, newid, 1, &myid);
-        spin_unlock(&ss->id_lock);
+        write_unlock(&ss->id_lock);
 
         /* Returns error when there are no free spaces for new ID.*/
         if (error) {
@@ -4926,9 +4929,9 @@ static struct css_id *get_new_cssid(struct cgroup_subsys *ss, int depth)
         return newid;
 remove_idr:
         error = -ENOSPC;
-        spin_lock(&ss->id_lock);
+        write_lock(&ss->id_lock);
         idr_remove(&ss->idr, myid);
-        spin_unlock(&ss->id_lock);
+        write_unlock(&ss->id_lock);
 err_out:
         kfree(newid);
         return ERR_PTR(error);
@@ -4940,7 +4943,7 @@ static int __init_or_module cgroup_init_idr(struct cgroup_subsys *ss,
 {
         struct css_id *newid;
 
-        spin_lock_init(&ss->id_lock);
+        rwlock_init(&ss->id_lock);
         idr_init(&ss->idr);
 
         newid = get_new_cssid(ss, 0);
@@ -5035,9 +5038,9 @@ css_get_next(struct cgroup_subsys *ss, int id,
                  * scan next entry from bitmap(tree), tmpid is updated after
                  * idr_get_next().
                  */
-                spin_lock(&ss->id_lock);
+                read_lock(&ss->id_lock);
                 tmp = idr_get_next(&ss->idr, &tmpid);
-                spin_unlock(&ss->id_lock);
+                read_unlock(&ss->id_lock);
 
                 if (!tmp)
                         break;
diff --git a/kernel/cgroup_freezer.c b/kernel/cgroup_freezer.c
index e691818d7e45..5e828a2ca8e6 100644
--- a/kernel/cgroup_freezer.c
+++ b/kernel/cgroup_freezer.c
@@ -14,7 +14,7 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  */
 
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/slab.h>
 #include <linux/cgroup.h>
 #include <linux/fs.h>
diff --git a/kernel/compat.c b/kernel/compat.c
index e2435ee9993a..f346cedfe24d 100644
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -21,6 +21,7 @@
 #include <linux/unistd.h>
 #include <linux/security.h>
 #include <linux/timex.h>
+#include <linux/export.h>
 #include <linux/migrate.h>
 #include <linux/posix-timers.h>
 #include <linux/times.h>
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 12b7458f23b1..563f13609470 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -10,11 +10,12 @@
 #include <linux/sched.h>
 #include <linux/unistd.h>
 #include <linux/cpu.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/kthread.h>
 #include <linux/stop_machine.h>
 #include <linux/mutex.h>
 #include <linux/gfp.h>
+#include <linux/suspend.h>
 
 #ifdef CONFIG_SMP
 /* Serializes the updates to cpu_online_mask, cpu_present_mask */
@@ -476,6 +477,79 @@ static int alloc_frozen_cpus(void)
         return 0;
 }
 core_initcall(alloc_frozen_cpus);
+
+/*
+ * Prevent regular CPU hotplug from racing with the freezer, by disabling CPU
+ * hotplug when tasks are about to be frozen. Also, don't allow the freezer
+ * to continue until any currently running CPU hotplug operation gets
+ * completed.
+ * To modify the 'cpu_hotplug_disabled' flag, we need to acquire the
+ * 'cpu_add_remove_lock'. And this same lock is also taken by the regular
+ * CPU hotplug path and released only after it is complete. Thus, we
+ * (and hence the freezer) will block here until any currently running CPU
+ * hotplug operation gets completed.
+ */
+void cpu_hotplug_disable_before_freeze(void)
+{
+        cpu_maps_update_begin();
+        cpu_hotplug_disabled = 1;
+        cpu_maps_update_done();
+}
+
+
+/*
+ * When tasks have been thawed, re-enable regular CPU hotplug (which had been
+ * disabled while beginning to freeze tasks).
+ */
+void cpu_hotplug_enable_after_thaw(void)
+{
+        cpu_maps_update_begin();
+        cpu_hotplug_disabled = 0;
+        cpu_maps_update_done();
+}
+
+/*
+ * When callbacks for CPU hotplug notifications are being executed, we must
+ * ensure that the state of the system with respect to the tasks being frozen
+ * or not, as reported by the notification, remains unchanged *throughout the
+ * duration* of the execution of the callbacks.
+ * Hence we need to prevent the freezer from racing with regular CPU hotplug.
+ *
+ * This synchronization is implemented by mutually excluding regular CPU
+ * hotplug and Suspend/Hibernate call paths by hooking onto the Suspend/
+ * Hibernate notifications.
+ */
+static int
+cpu_hotplug_pm_callback(struct notifier_block *nb,
+                        unsigned long action, void *ptr)
+{
+        switch (action) {
+
+        case PM_SUSPEND_PREPARE:
+        case PM_HIBERNATION_PREPARE:
+                cpu_hotplug_disable_before_freeze();
+                break;
+
+        case PM_POST_SUSPEND:
+        case PM_POST_HIBERNATION:
+                cpu_hotplug_enable_after_thaw();
+                break;
+
+        default:
+                return NOTIFY_DONE;
+        }
+
+        return NOTIFY_OK;
+}
+
+
+int cpu_hotplug_pm_sync_init(void)
+{
+        pm_notifier(cpu_hotplug_pm_callback, 0);
+        return 0;
+}
+core_initcall(cpu_hotplug_pm_sync_init);
+
 #endif /* CONFIG_PM_SLEEP_SMP */
 
 /**
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 10131fdaff70..9fe58c46a426 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -37,7 +37,7 @@
 #include <linux/mempolicy.h>
 #include <linux/mm.h>
 #include <linux/memory.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/mount.h>
 #include <linux/namei.h>
 #include <linux/pagemap.h>
@@ -949,6 +949,8 @@ static void cpuset_migrate_mm(struct mm_struct *mm, const nodemask_t *from,
 static void cpuset_change_task_nodemask(struct task_struct *tsk,
                                         nodemask_t *newmems)
 {
+        bool masks_disjoint = !nodes_intersects(*newmems, tsk->mems_allowed);
+
 repeat:
         /*
          * Allow tasks that have access to memory reserves because they have
@@ -963,7 +965,6 @@ repeat:
         nodes_or(tsk->mems_allowed, tsk->mems_allowed, *newmems);
         mpol_rebind_task(tsk, newmems, MPOL_REBIND_STEP1);
 
-
         /*
          * ensure checking ->mems_allowed_change_disable after setting all new
          * allowed nodes.
@@ -980,9 +981,11 @@ repeat:
 
         /*
          * Allocation of memory is very fast, we needn't sleep when waiting
-         * for the read-side.
+         * for the read-side.  No wait is necessary, however, if at least one
+         * node remains unchanged.
          */
-        while (ACCESS_ONCE(tsk->mems_allowed_change_disable)) {
+        while (masks_disjoint &&
+                        ACCESS_ONCE(tsk->mems_allowed_change_disable)) {
                 task_unlock(tsk);
                 if (!task_curr(tsk))
                         yield();
diff --git a/kernel/crash_dump.c b/kernel/crash_dump.c
index 69ebf3380bac..c766ee54c0b1 100644
--- a/kernel/crash_dump.c
+++ b/kernel/crash_dump.c
@@ -2,7 +2,7 @@
 #include <linux/crash_dump.h>
 #include <linux/init.h>
 #include <linux/errno.h>
-#include <linux/module.h>
+#include <linux/export.h>
 
 /*
  * If we have booted due to a crash, max_pfn will be a very low value. We need
diff --git a/kernel/cred.c b/kernel/cred.c
index bb55d052d858..5791612a4045 100644
--- a/kernel/cred.c
+++ b/kernel/cred.c
@@ -8,7 +8,7 @@
  * as published by the Free Software Foundation; either version
  * 2 of the Licence, or (at your option) any later version.
  */
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/cred.h>
 #include <linux/slab.h>
 #include <linux/sched.h>
diff --git a/kernel/debug/kdb/kdb_debugger.c b/kernel/debug/kdb/kdb_debugger.c
index d9ca9aa481ec..8b68ce78ff17 100644
--- a/kernel/debug/kdb/kdb_debugger.c
+++ b/kernel/debug/kdb/kdb_debugger.c
@@ -11,6 +11,7 @@
 #include <linux/kgdb.h>
 #include <linux/kdb.h>
 #include <linux/kdebug.h>
+#include <linux/export.h>
 #include "kdb_private.h"
 #include "../debug_core.h"
 
diff --git a/kernel/dma.c b/kernel/dma.c
index f903189c5304..68a2306522c8 100644
--- a/kernel/dma.c
+++ b/kernel/dma.c
@@ -9,7 +9,7 @@
  *   [It also happened to remove the sizeof(char *) == sizeof(int)
  *   assumption introduced because of those /proc/dma patches. -- Hennus]
  */
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/spinlock.h>
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 12a0287e0358..0e8457da6f95 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -25,11 +25,11 @@
 #include <linux/reboot.h>
 #include <linux/vmstat.h>
 #include <linux/device.h>
+#include <linux/export.h>
 #include <linux/vmalloc.h>
 #include <linux/hardirq.h>
 #include <linux/rculist.h>
 #include <linux/uaccess.h>
-#include <linux/suspend.h>
 #include <linux/syscalls.h>
 #include <linux/anon_inodes.h>
 #include <linux/kernel_stat.h>
@@ -6853,7 +6853,7 @@ static void __cpuinit perf_event_init_cpu(int cpu)
         struct swevent_htable *swhash = &per_cpu(swevent_htable, cpu);
 
         mutex_lock(&swhash->hlist_mutex);
-        if (swhash->hlist_refcount > 0 && !swhash->swevent_hlist) {
+        if (swhash->hlist_refcount > 0) {
                 struct swevent_hlist *hlist;
 
                 hlist = kzalloc_node(sizeof(*hlist), GFP_KERNEL, cpu_to_node(cpu));
@@ -6942,14 +6942,7 @@ perf_cpu_notify(struct notifier_block *self, unsigned long action, void *hcpu)
 {
         unsigned int cpu = (long)hcpu;
 
-        /*
-         * Ignore suspend/resume action, the perf_pm_notifier will
-         * take care of that.
-         */
-        if (action & CPU_TASKS_FROZEN)
-                return NOTIFY_OK;
-
-        switch (action) {
+        switch (action & ~CPU_TASKS_FROZEN) {
 
         case CPU_UP_PREPARE:
         case CPU_DOWN_FAILED:
@@ -6968,90 +6961,6 @@ perf_cpu_notify(struct notifier_block *self, unsigned long action, void *hcpu)
         return NOTIFY_OK;
 }
 
-static void perf_pm_resume_cpu(void *unused)
-{
-        struct perf_cpu_context *cpuctx;
-        struct perf_event_context *ctx;
-        struct pmu *pmu;
-        int idx;
-
-        idx = srcu_read_lock(&pmus_srcu);
-        list_for_each_entry_rcu(pmu, &pmus, entry) {
-                cpuctx = this_cpu_ptr(pmu->pmu_cpu_context);
-                ctx = cpuctx->task_ctx;
-
-                perf_ctx_lock(cpuctx, ctx);
-                perf_pmu_disable(cpuctx->ctx.pmu);
-
-                cpu_ctx_sched_out(cpuctx, EVENT_ALL);
-                if (ctx)
-                        ctx_sched_out(ctx, cpuctx, EVENT_ALL);
-
-                perf_pmu_enable(cpuctx->ctx.pmu);
-                perf_ctx_unlock(cpuctx, ctx);
-        }
-        srcu_read_unlock(&pmus_srcu, idx);
-}
-
-static void perf_pm_suspend_cpu(void *unused)
-{
-        struct perf_cpu_context *cpuctx;
-        struct perf_event_context *ctx;
-        struct pmu *pmu;
-        int idx;
-
-        idx = srcu_read_lock(&pmus_srcu);
-        list_for_each_entry_rcu(pmu, &pmus, entry) {
-                cpuctx = this_cpu_ptr(pmu->pmu_cpu_context);
-                ctx = cpuctx->task_ctx;
-
-                perf_ctx_lock(cpuctx, ctx);
-                perf_pmu_disable(cpuctx->ctx.pmu);
-
-                perf_event_sched_in(cpuctx, ctx, current);
-
-                perf_pmu_enable(cpuctx->ctx.pmu);
-                perf_ctx_unlock(cpuctx, ctx);
-        }
-        srcu_read_unlock(&pmus_srcu, idx);
-}
-
-static int perf_resume(void)
-{
-        get_online_cpus();
-        smp_call_function(perf_pm_resume_cpu, NULL, 1);
-        put_online_cpus();
-
-        return NOTIFY_OK;
-}
-
-static int perf_suspend(void)
-{
-        get_online_cpus();
-        smp_call_function(perf_pm_suspend_cpu, NULL, 1);
-        put_online_cpus();
-
-        return NOTIFY_OK;
-}
-
-static int perf_pm(struct notifier_block *self, unsigned long action, void *ptr)
-{
-        switch (action) {
-        case PM_POST_HIBERNATION:
-        case PM_POST_SUSPEND:
-                return perf_resume();
-        case PM_HIBERNATION_PREPARE:
-        case PM_SUSPEND_PREPARE:
-                return perf_suspend();
-        default:
-                return NOTIFY_DONE;
-        }
-}
-
-static struct notifier_block perf_pm_notifier = {
-        .notifier_call = perf_pm,
-};
-
 void __init perf_event_init(void)
 {
         int ret;
@@ -7066,7 +6975,6 @@ void __init perf_event_init(void)
         perf_tp_register();
         perf_cpu_notifier(perf_cpu_notify);
         register_reboot_notifier(&perf_reboot_notifier);
-        register_pm_notifier(&perf_pm_notifier);
 
         ret = init_hw_breakpoint();
         WARN(ret, "hw_breakpoint initialization failed with: %d", ret);
diff --git a/kernel/fork.c b/kernel/fork.c
index 70d76191afb9..ba0d17261329 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1299,6 +1299,9 @@ static struct task_struct *copy_process(unsigned long clone_flags,
         p->pdeath_signal = 0;
         p->exit_state = 0;
 
+        p->nr_dirtied = 0;
+        p->nr_dirtied_pause = 128 >> (PAGE_SHIFT - 10);
+
         /*
          * Ok, make it visible to the rest of the system.
          * We dont wake it up yet.
diff --git a/kernel/freezer.c b/kernel/freezer.c
index 66a594e8ad2f..7be56c534397 100644
--- a/kernel/freezer.c
+++ b/kernel/freezer.c
@@ -6,7 +6,7 @@
 
 #include <linux/interrupt.h>
 #include <linux/suspend.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/syscalls.h>
 #include <linux/freezer.h>
 
@@ -67,7 +67,7 @@ static void fake_signal_wake_up(struct task_struct *p)
         unsigned long flags;
 
         spin_lock_irqsave(&p->sighand->siglock, flags);
-        signal_wake_up(p, 1);
+        signal_wake_up(p, 0);
         spin_unlock_irqrestore(&p->sighand->siglock, flags);
 }
 
diff --git a/kernel/futex.c b/kernel/futex.c
index 1511dff0cfd6..ea87f4d2f455 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -55,7 +55,7 @@
 #include <linux/pagemap.h>
 #include <linux/syscalls.h>
 #include <linux/signal.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/magic.h>
 #include <linux/pid.h>
 #include <linux/nsproxy.h>
diff --git a/kernel/groups.c b/kernel/groups.c
index 1cc476d52dd3..99b53d1eb7ea 100644
--- a/kernel/groups.c
+++ b/kernel/groups.c
@@ -2,7 +2,7 @@
  * Supplementary group IDs
  */
 #include <linux/cred.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/slab.h>
 #include <linux/security.h>
 #include <linux/syscalls.h>
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index a9205e32a059..422e567eecf6 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -32,7 +32,7 @@
  */
 
 #include <linux/cpu.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/percpu.h>
 #include <linux/hrtimer.h>
 #include <linux/notifier.h>
diff --git a/kernel/hung_task.c b/kernel/hung_task.c
index ea640120ab86..8b1748d0172c 100644
--- a/kernel/hung_task.c
+++ b/kernel/hung_task.c
@@ -13,7 +13,7 @@
 #include <linux/freezer.h>
 #include <linux/kthread.h>
 #include <linux/lockdep.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/sysctl.h>
 
 /*
diff --git a/kernel/irq/generic-chip.c b/kernel/irq/generic-chip.c
index 6cb7613e4bf4..c89295a8f668 100644
--- a/kernel/irq/generic-chip.c
+++ b/kernel/irq/generic-chip.c
@@ -6,6 +6,7 @@
 #include <linux/io.h>
 #include <linux/irq.h>
 #include <linux/slab.h>
+#include <linux/export.h>
 #include <linux/interrupt.h>
 #include <linux/kernel_stat.h>
 #include <linux/syscore_ops.h>
diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index 1550e8447a16..d86e254b95eb 100644
--- a/kernel/irq/irqdesc.c
+++ b/kernel/irq/irqdesc.c
@@ -9,7 +9,7 @@
  */
 #include <linux/irq.h>
 #include <linux/slab.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/interrupt.h>
 #include <linux/kernel_stat.h>
 #include <linux/radix-tree.h>
diff --git a/kernel/irq_work.c b/kernel/irq_work.c
index 0e2cde4f380b..c3c46c72046e 100644
--- a/kernel/irq_work.c
+++ b/kernel/irq_work.c
@@ -6,9 +6,11 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/irq_work.h>
+#include <linux/percpu.h>
 #include <linux/hardirq.h>
+#include <asm/processor.h>
 
 /*
  * An entry can be in one of four states:
diff --git a/kernel/kfifo.c b/kernel/kfifo.c
index 01a0700e873f..c744b88c44e2 100644
--- a/kernel/kfifo.c
+++ b/kernel/kfifo.c
@@ -20,7 +20,7 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/slab.h>
 #include <linux/err.h>
 #include <linux/log2.h>
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 2f193d0ba7f2..e5d84644823b 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -36,7 +36,7 @@
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/stddef.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/moduleloader.h>
 #include <linux/kallsyms.h>
 #include <linux/freezer.h>
diff --git a/kernel/ksysfs.c b/kernel/ksysfs.c
index 3b053c04dd86..4e316e1acf58 100644
--- a/kernel/ksysfs.c
+++ b/kernel/ksysfs.c
@@ -11,10 +11,11 @@
 #include <linux/kobject.h>
 #include <linux/string.h>
 #include <linux/sysfs.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/init.h>
 #include <linux/kexec.h>
 #include <linux/profile.h>
+#include <linux/stat.h>
 #include <linux/sched.h>
 #include <linux/capability.h>
 
diff --git a/kernel/kthread.c b/kernel/kthread.c
index 4ba7cccb4994..b6d216a92639 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -12,7 +12,7 @@
 #include <linux/cpuset.h>
 #include <linux/unistd.h>
 #include <linux/file.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/mutex.h>
 #include <linux/slab.h>
 #include <linux/freezer.h>
diff --git a/kernel/latencytop.c b/kernel/latencytop.c
index 4ac8ebfcab59..a462b317f9a0 100644
--- a/kernel/latencytop.c
+++ b/kernel/latencytop.c
@@ -53,7 +53,7 @@
 #include <linux/notifier.h>
 #include <linux/spinlock.h>
 #include <linux/proc_fs.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/sched.h>
 #include <linux/list.h>
 #include <linux/stacktrace.h>
diff --git a/kernel/lockdep_proc.c b/kernel/lockdep_proc.c
index 71edd2f60c02..91c32a0b612c 100644
--- a/kernel/lockdep_proc.c
+++ b/kernel/lockdep_proc.c
@@ -11,7 +11,7 @@
  * Code for /proc/lockdep and /proc/lockdep_stats:
  *
  */
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/kallsyms.h>
diff --git a/kernel/module.c b/kernel/module.c
index 93342d992f34..178333c48d1e 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -16,7 +16,7 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/moduleloader.h>
 #include <linux/ftrace_event.h>
 #include <linux/init.h>
@@ -2487,6 +2487,9 @@ static int check_modinfo(struct module *mod, struct load_info *info)
                 return -ENOEXEC;
         }
 
+        if (!get_modinfo(info, "intree"))
+                add_taint_module(mod, TAINT_OOT_MODULE);
+
         if (get_modinfo(info, "staging")) {
                 add_taint_module(mod, TAINT_CRAP);
                 printk(KERN_WARNING "%s: module is from the staging directory,"
@@ -2878,8 +2881,7 @@ static struct module *load_module(void __user *umod,
         }
 
         /* This has to be done once we're sure module name is unique. */
-        if (!mod->taints || mod->taints == (1U<<TAINT_CRAP))
-                dynamic_debug_setup(info.debug, info.num_debug);
+        dynamic_debug_setup(info.debug, info.num_debug);
 
         /* Find duplicate symbols */
         err = verify_export_symbols(mod);
@@ -2915,8 +2917,7 @@ static struct module *load_module(void __user *umod,
         module_bug_cleanup(mod);
 
  ddebug:
-        if (!mod->taints || mod->taints == (1U<<TAINT_CRAP))
-                dynamic_debug_remove(info.debug);
+        dynamic_debug_remove(info.debug);
  unlock:
         mutex_unlock(&module_mutex);
         synchronize_sched();
@@ -3257,6 +3258,8 @@ static char *module_flags(struct module *mod, char *buf)
                 buf[bx++] = '(';
                 if (mod->taints & (1 << TAINT_PROPRIETARY_MODULE))
                         buf[bx++] = 'P';
+                else if (mod->taints & (1 << TAINT_OOT_MODULE))
+                        buf[bx++] = 'O';
                 if (mod->taints & (1 << TAINT_FORCED_MODULE))
                         buf[bx++] = 'F';
                 if (mod->taints & (1 << TAINT_CRAP))
diff --git a/kernel/mutex-debug.c b/kernel/mutex-debug.c
index 73da83aff418..7e3443fe1f48 100644
--- a/kernel/mutex-debug.c
+++ b/kernel/mutex-debug.c
@@ -14,7 +14,7 @@
  */
 #include <linux/mutex.h>
 #include <linux/delay.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/poison.h>
 #include <linux/sched.h>
 #include <linux/spinlock.h>
diff --git a/kernel/mutex.c b/kernel/mutex.c
index d607ed5dd441..89096dd8786f 100644
--- a/kernel/mutex.c
+++ b/kernel/mutex.c
@@ -19,7 +19,7 @@
  */
 #include <linux/mutex.h>
 #include <linux/sched.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/spinlock.h>
 #include <linux/interrupt.h>
 #include <linux/debug_locks.h>
diff --git a/kernel/notifier.c b/kernel/notifier.c
index 8d7b435806c9..2d5cc4ccff7f 100644
--- a/kernel/notifier.c
+++ b/kernel/notifier.c
@@ -1,6 +1,6 @@
 #include <linux/kdebug.h>
 #include <linux/kprobes.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/notifier.h>
 #include <linux/rcupdate.h>
 #include <linux/vmalloc.h>
diff --git a/kernel/nsproxy.c b/kernel/nsproxy.c
index 9aeab4b98c64..b576f7f14bc6 100644
--- a/kernel/nsproxy.c
+++ b/kernel/nsproxy.c
@@ -14,7 +14,7 @@
  */
 
 #include <linux/slab.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/nsproxy.h>
 #include <linux/init_task.h>
 #include <linux/mnt_namespace.h>
diff --git a/kernel/padata.c b/kernel/padata.c
index b91941df5e63..b45259931512 100644
--- a/kernel/padata.c
+++ b/kernel/padata.c
@@ -18,7 +18,7 @@
  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/cpumask.h>
 #include <linux/err.h>
 #include <linux/cpu.h>
diff --git a/kernel/panic.c b/kernel/panic.c
index d7bb6974efb5..b26593604214 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -177,6 +177,7 @@ static const struct tnt tnts[] = {
         { TAINT_WARN,                   'W', ' ' },
         { TAINT_CRAP,                   'C', ' ' },
         { TAINT_FIRMWARE_WORKAROUND,    'I', ' ' },
+        { TAINT_OOT_MODULE,             'O', ' ' },
 };
 
 /**
@@ -194,6 +195,7 @@ static const struct tnt tnts[] = {
  *  'W' - Taint on warning.
  *  'C' - modules from drivers/staging are loaded.
  *  'I' - Working around severe firmware bug.
+ *  'O' - Out-of-tree module has been loaded.
  *
  *      The string is overwritten by the next call to print_tainted().
  */
diff --git a/kernel/params.c b/kernel/params.c
index 821788947e40..65aae11eb93f 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -15,7 +15,7 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
-#include <linux/moduleparam.h>
+#include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
 #include <linux/errno.h>
diff --git a/kernel/pid.c b/kernel/pid.c
index 8cafe7e72ad2..fa5f72227e5f 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -27,7 +27,7 @@
  */
 
 #include <linux/mm.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/rculist.h>
diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index 4556182527f3..69185ae6b701 100644
--- a/kernel/posix-timers.c
+++ b/kernel/posix-timers.c
@@ -46,7 +46,7 @@
 #include <linux/syscalls.h>
 #include <linux/wait.h>
 #include <linux/workqueue.h>
-#include <linux/module.h>
+#include <linux/export.h>
 
 /*
  * Management arrays for POSIX timers.   Timers are kept in slab memory
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index 1c53f7fad5f7..b4511b6d3ef9 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -9,6 +9,7 @@
  * This file is released under the GPLv2.
  */
 
+#include <linux/export.h>
 #include <linux/suspend.h>
 #include <linux/syscalls.h>
 #include <linux/reboot.h>
diff --git a/kernel/power/main.c b/kernel/power/main.c
index a52e88425a31..71f49fe4377e 100644
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -8,6 +8,7 @@
  *
  */
 
+#include <linux/export.h>
 #include <linux/kobject.h>
 #include <linux/string.h>
 #include <linux/resume-trace.h>
diff --git a/kernel/power/qos.c b/kernel/power/qos.c
index 1c1797dd1d1d..56db75147186 100644
--- a/kernel/power/qos.c
+++ b/kernel/power/qos.c
@@ -43,6 +43,7 @@
 #include <linux/kernel.h>
 
 #include <linux/uaccess.h>
+#include <linux/export.h>
 
 /*
  * locking rule: all changes to constraints or notifiers lists
@@ -386,8 +387,7 @@ static int pm_qos_power_open(struct inode *inode, struct file *filp)
                 pm_qos_add_request(req, pm_qos_class, PM_QOS_DEFAULT_VALUE);
                 filp->private_data = req;
 
-                if (filp->private_data)
-                        return 0;
+                return 0;
         }
         return -EPERM;
 }
diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c
index fdd4263b995d..4953dc054c53 100644
--- a/kernel/power/suspend.c
+++ b/kernel/power/suspend.c
@@ -12,6 +12,7 @@
 #include <linux/delay.h>
 #include <linux/errno.h>
 #include <linux/init.h>
+#include <linux/kmod.h>
 #include <linux/console.h>
 #include <linux/cpu.h>
 #include <linux/syscalls.h>
@@ -21,6 +22,7 @@
 #include <linux/list.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
+#include <linux/export.h>
 #include <linux/suspend.h>
 #include <linux/syscore_ops.h>
 #include <trace/events/power.h>
diff --git a/kernel/power/user.c b/kernel/power/user.c
index 42ddbc6f0de6..6d8f535c2b88 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -12,6 +12,7 @@
 #include <linux/suspend.h>
 #include <linux/syscalls.h>
 #include <linux/reboot.h>
+#include <linux/kmod.h>
 #include <linux/string.h>
 #include <linux/device.h>
 #include <linux/miscdevice.h>
diff --git a/kernel/profile.c b/kernel/profile.c
index 961b389fe52f..76b8e77773ee 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -13,7 +13,7 @@
  *      to resolve timer interrupt livelocks, William Irwin, Oracle, 2004
  */
 
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/profile.h>
 #include <linux/bootmem.h>
 #include <linux/notifier.h>
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index a70d2a5d8c7b..24d04477b257 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -8,7 +8,7 @@
  */
 
 #include <linux/capability.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/sched.h>
 #include <linux/errno.h>
 #include <linux/mm.h>
diff --git a/kernel/range.c b/kernel/range.c
index 37fa9b99ad58..9b8ae2d6ed68 100644
--- a/kernel/range.c
+++ b/kernel/range.c
@@ -1,7 +1,7 @@
 /*
  * Range add and subtract
  */
-#include <linux/module.h>
+#include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/sort.h>
 
diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c
index ca0d23b6b3e8..c5b98e565aee 100644
--- a/kernel/rcupdate.c
+++ b/kernel/rcupdate.c
@@ -43,7 +43,7 @@
 #include <linux/notifier.h>
 #include <linux/cpu.h>
 #include <linux/mutex.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/hardirq.h>
 
 #define CREATE_TRACE_POINTS
diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c
index da775c87f27f..636af6d9c6e5 100644
--- a/kernel/rcutiny.c
+++ b/kernel/rcutiny.c
@@ -22,13 +22,12 @@
  * For detailed explanation of Read-Copy Update mechanism see -
  *              Documentation/RCU
  */
-#include <linux/moduleparam.h>
 #include <linux/completion.h>
 #include <linux/interrupt.h>
 #include <linux/notifier.h>
 #include <linux/rcupdate.h>
 #include <linux/kernel.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/mutex.h>
 #include <linux/sched.h>
 #include <linux/types.h>
diff --git a/kernel/rcutiny_plugin.h b/kernel/rcutiny_plugin.h
index 02aa7139861c..2b0484a5dc28 100644
--- a/kernel/rcutiny_plugin.h
+++ b/kernel/rcutiny_plugin.h
@@ -23,6 +23,7 @@
  */
 
 #include <linux/kthread.h>
+#include <linux/module.h>
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
 
diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index e234eb92a177..6b76d812740c 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -38,7 +38,7 @@
 #include <linux/nmi.h>
 #include <linux/atomic.h>
 #include <linux/bitops.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/completion.h>
 #include <linux/moduleparam.h>
 #include <linux/percpu.h>
diff --git a/kernel/relay.c b/kernel/relay.c
index 859ea5a9605f..226fade4d727 100644
--- a/kernel/relay.c
+++ b/kernel/relay.c
@@ -15,7 +15,7 @@
 #include <linux/errno.h>
 #include <linux/stddef.h>
 #include <linux/slab.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/string.h>
 #include <linux/relay.h>
 #include <linux/vmalloc.h>
diff --git a/kernel/resource.c b/kernel/resource.c
index c8dc249da5ce..7640b3a947d0 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -7,7 +7,7 @@
  * Arbitrary resource management.
  */
 
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/errno.h>
 #include <linux/ioport.h>
 #include <linux/init.h>
diff --git a/kernel/rtmutex-debug.c b/kernel/rtmutex-debug.c
index a2e7e7210f3e..8eafd1bd273e 100644
--- a/kernel/rtmutex-debug.c
+++ b/kernel/rtmutex-debug.c
@@ -18,7 +18,7 @@
  */
 #include <linux/sched.h>
 #include <linux/delay.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/spinlock.h>
 #include <linux/kallsyms.h>
 #include <linux/syscalls.h>
diff --git a/kernel/rtmutex-tester.c b/kernel/rtmutex-tester.c
index 5c9ccd380966..3d9f31cd79e7 100644
--- a/kernel/rtmutex-tester.c
+++ b/kernel/rtmutex-tester.c
@@ -7,7 +7,7 @@
  *
  */
 #include <linux/kthread.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/sched.h>
 #include <linux/spinlock.h>
 #include <linux/sysdev.h>
diff --git a/kernel/rtmutex.c b/kernel/rtmutex.c
index 5e8d9cce7470..f9d8482dd487 100644
--- a/kernel/rtmutex.c
+++ b/kernel/rtmutex.c
@@ -11,7 +11,7 @@
  *  See Documentation/rt-mutex-design.txt for details.
  */
 #include <linux/spinlock.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/sched.h>
 #include <linux/timer.h>
 
diff --git a/kernel/rwsem.c b/kernel/rwsem.c
index 9f48f3d82e9b..b152f74f02de 100644
--- a/kernel/rwsem.c
+++ b/kernel/rwsem.c
@@ -7,7 +7,7 @@
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/rwsem.h>
 
 #include <asm/system.h>
diff --git a/kernel/sched.c b/kernel/sched.c
index d87c6e5d4e8c..0e9344a71be3 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -7087,8 +7087,6 @@ static int __init isolated_cpu_setup(char *str)
 
 __setup("isolcpus=", isolated_cpu_setup);
 
-#define SD_NODES_PER_DOMAIN 16
-
 #ifdef CONFIG_NUMA
 
 /**
diff --git a/kernel/sched_clock.c b/kernel/sched_clock.c
index 9d8af0b3fb64..c685e31492df 100644
--- a/kernel/sched_clock.c
+++ b/kernel/sched_clock.c
@@ -62,7 +62,7 @@
  */
 #include <linux/spinlock.h>
 #include <linux/hardirq.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/percpu.h>
 #include <linux/ktime.h>
 #include <linux/sched.h>
diff --git a/kernel/semaphore.c b/kernel/semaphore.c
index d831841e55a7..60636a4e25c3 100644
--- a/kernel/semaphore.c
+++ b/kernel/semaphore.c
@@ -27,7 +27,7 @@
 
 #include <linux/compiler.h>
 #include <linux/kernel.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/sched.h>
 #include <linux/semaphore.h>
 #include <linux/spinlock.h>
diff --git a/kernel/signal.c b/kernel/signal.c
index d252be2d3de5..b3f78d09a105 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -11,7 +11,7 @@
  */
 
 #include <linux/slab.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/init.h>
 #include <linux/sched.h>
 #include <linux/fs.h>
diff --git a/kernel/smp.c b/kernel/smp.c
index fb67dfa8394e..db197d60489b 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -6,7 +6,7 @@
 #include <linux/rcupdate.h>
 #include <linux/rculist.h>
 #include <linux/kernel.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/percpu.h>
 #include <linux/init.h>
 #include <linux/gfp.h>
diff --git a/kernel/softirq.c b/kernel/softirq.c
index fca82c32042b..2c71d91efff0 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -10,7 +10,7 @@
  *      Remote softirq infrastructure is by Jens Axboe.
  */
 
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/kernel_stat.h>
 #include <linux/interrupt.h>
 #include <linux/init.h>
diff --git a/kernel/spinlock.c b/kernel/spinlock.c
index be6517fb9c14..84c7d96918bf 100644
--- a/kernel/spinlock.c
+++ b/kernel/spinlock.c
@@ -19,7 +19,7 @@
 #include <linux/spinlock.h>
 #include <linux/interrupt.h>
 #include <linux/debug_locks.h>
-#include <linux/module.h>
+#include <linux/export.h>
 
 /*
  * If lockdep is enabled then we use the non-preemption spin-ops
diff --git a/kernel/srcu.c b/kernel/srcu.c
index 73ce23feaea9..0febf61e1aa3 100644
--- a/kernel/srcu.c
+++ b/kernel/srcu.c
@@ -24,7 +24,7 @@
  *
  */
 
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/mutex.h>
 #include <linux/percpu.h>
 #include <linux/preempt.h>
diff --git a/kernel/stacktrace.c b/kernel/stacktrace.c
index d20c6983aad9..00fe55cc5a82 100644
--- a/kernel/stacktrace.c
+++ b/kernel/stacktrace.c
@@ -7,7 +7,7 @@
  */
 #include <linux/sched.h>
 #include <linux/kernel.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/kallsyms.h>
 #include <linux/stacktrace.h>
 
diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c
index 5b0951aa0496..2f194e965715 100644
--- a/kernel/stop_machine.c
+++ b/kernel/stop_machine.c
@@ -12,7 +12,7 @@
 #include <linux/cpu.h>
 #include <linux/init.h>
 #include <linux/kthread.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/percpu.h>
 #include <linux/sched.h>
 #include <linux/stop_machine.h>
diff --git a/kernel/sys.c b/kernel/sys.c
index 58459509b14c..481611fbd079 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -4,7 +4,7 @@
  *  Copyright (C) 1991, 1992  Linus Torvalds
  */
 
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/mm.h>
 #include <linux/utsname.h>
 #include <linux/mman.h>
@@ -12,6 +12,7 @@
 #include <linux/prctl.h>
 #include <linux/highuid.h>
 #include <linux/fs.h>
+#include <linux/kmod.h>
 #include <linux/perf_event.h>
 #include <linux/resource.h>
 #include <linux/kernel.h>
@@ -1286,6 +1287,7 @@ SYSCALL_DEFINE2(sethostname, char __user *, name, int, len)
                 memset(u->nodename + len, 0, sizeof(u->nodename) - len);
                 errno = 0;
         }
+        uts_proc_notify(UTS_PROC_HOSTNAME);
         up_write(&uts_sem);
         return errno;
 }
@@ -1336,6 +1338,7 @@ SYSCALL_DEFINE2(setdomainname, char __user *, name, int, len)
                 memset(u->domainname + len, 0, sizeof(u->domainname) - len);
                 errno = 0;
         }
+        uts_proc_notify(UTS_PROC_DOMAINNAME);
         up_write(&uts_sem);
         return errno;
 }
diff --git a/kernel/time.c b/kernel/time.c
index d77606214529..73e416db0a1e 100644
--- a/kernel/time.c
+++ b/kernel/time.c
@@ -27,7 +27,7 @@
  *      with nanosecond accuracy
  */
 
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/timex.h>
 #include <linux/capability.h>
 #include <linux/clocksource.h>
diff --git a/kernel/time/posix-clock.c b/kernel/time/posix-clock.c
index c340ca658f37..ce033c7aa2e8 100644
--- a/kernel/time/posix-clock.c
+++ b/kernel/time/posix-clock.c
@@ -18,6 +18,7 @@
  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 #include <linux/device.h>
+#include <linux/export.h>
 #include <linux/file.h>
 #include <linux/posix-clock.h>
 #include <linux/slab.h>
diff --git a/kernel/timer.c b/kernel/timer.c
index 8cff36119e4d..dbaa62422b13 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -20,7 +20,7 @@
  */
 
 #include <linux/kernel_stat.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/interrupt.h>
 #include <linux/percpu.h>
 #include <linux/init.h>
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 7c910a5593a6..16fc34a0806f 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -23,6 +23,7 @@
 #include <linux/mutex.h>
 #include <linux/slab.h>
 #include <linux/debugfs.h>
+#include <linux/export.h>
 #include <linux/time.h>
 #include <linux/uaccess.h>
 
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 077d85387908..900b409543db 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -22,6 +22,7 @@
 #include <linux/hardirq.h>
 #include <linux/kthread.h>
 #include <linux/uaccess.h>
+#include <linux/module.h>
 #include <linux/ftrace.h>
 #include <linux/sysctl.h>
 #include <linux/slab.h>
diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
index ee7b5a0bb9f8..cb654542c1a1 100644
--- a/kernel/trace/trace_syscalls.c
+++ b/kernel/trace/trace_syscalls.c
@@ -2,6 +2,7 @@
 #include <trace/events/syscalls.h>
 #include <linux/slab.h>
 #include <linux/kernel.h>
+#include <linux/module.h>       /* for MODULE_NAME_LEN via KSYM_SYMBOL_LEN */
 #include <linux/ftrace.h>
 #include <linux/perf_event.h>
 #include <asm/syscall.h>
diff --git a/kernel/up.c b/kernel/up.c
index 1ff27a28bb7d..c54c75e9faf7 100644
--- a/kernel/up.c
+++ b/kernel/up.c
@@ -4,7 +4,7 @@
 
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/smp.h>
 
 int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
diff --git a/kernel/user-return-notifier.c b/kernel/user-return-notifier.c
index 92cb706c7fc8..1744bb80f1fb 100644
--- a/kernel/user-return-notifier.c
+++ b/kernel/user-return-notifier.c
@@ -2,7 +2,7 @@
 #include <linux/user-return-notifier.h>
 #include <linux/percpu.h>
 #include <linux/sched.h>
-#include <linux/module.h>
+#include <linux/export.h>
 
 static DEFINE_PER_CPU(struct hlist_head, return_notifier_list);
 
diff --git a/kernel/user.c b/kernel/user.c
index 9e03e9c1df8d..71dd2363ab0f 100644
--- a/kernel/user.c
+++ b/kernel/user.c
@@ -14,7 +14,7 @@
 #include <linux/bitops.h>
 #include <linux/key.h>
 #include <linux/interrupt.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/user_namespace.h>
 
 /*
diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
index 9da289c34f22..3b906e98b1db 100644
--- a/kernel/user_namespace.c
+++ b/kernel/user_namespace.c
@@ -5,7 +5,7 @@
  *  License.
  */
 
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/nsproxy.h>
 #include <linux/slab.h>
 #include <linux/user_namespace.h>
diff --git a/kernel/utsname.c b/kernel/utsname.c
index bff131b9510a..405caf91aad5 100644
--- a/kernel/utsname.c
+++ b/kernel/utsname.c
@@ -9,7 +9,7 @@
  *  License.
  */
 
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/uts.h>
 #include <linux/utsname.h>
 #include <linux/err.h>
diff --git a/kernel/utsname_sysctl.c b/kernel/utsname_sysctl.c
index a2cd77e70d4d..63da38c2d820 100644
--- a/kernel/utsname_sysctl.c
+++ b/kernel/utsname_sysctl.c
@@ -9,10 +9,11 @@
  *  License.
  */
 
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/uts.h>
 #include <linux/utsname.h>
 #include <linux/sysctl.h>
+#include <linux/wait.h>
 
 static void *get_uts(ctl_table *table, int write)
 {
@@ -51,12 +52,19 @@ static int proc_do_uts_string(ctl_table *table, int write,
         uts_table.data = get_uts(table, write);
         r = proc_dostring(&uts_table,write,buffer,lenp, ppos);
         put_uts(table, write, uts_table.data);
+
+        if (write)
+                proc_sys_poll_notify(table->poll);
+
         return r;
 }
 #else
 #define proc_do_uts_string NULL
 #endif
 
+static DEFINE_CTL_TABLE_POLL(hostname_poll);
+static DEFINE_CTL_TABLE_POLL(domainname_poll);
+
 static struct ctl_table uts_kern_table[] = {
         {
                 .procname       = "ostype",
@@ -85,6 +93,7 @@ static struct ctl_table uts_kern_table[] = {
                 .maxlen         = sizeof(init_uts_ns.name.nodename),
                 .mode           = 0644,
                 .proc_handler   = proc_do_uts_string,
+                .poll           = &hostname_poll,
         },
         {
                 .procname       = "domainname",
@@ -92,6 +101,7 @@ static struct ctl_table uts_kern_table[] = {
                 .maxlen         = sizeof(init_uts_ns.name.domainname),
                 .mode           = 0644,
                 .proc_handler   = proc_do_uts_string,
+                .poll           = &domainname_poll,
         },
         {}
 };
@@ -105,6 +115,19 @@ static struct ctl_table uts_root_table[] = {
         {}
 };
 
+#ifdef CONFIG_PROC_SYSCTL
+/*
+ * Notify userspace about a change in a certain entry of uts_kern_table,
+ * identified by the parameter proc.
+ */
+void uts_proc_notify(enum uts_proc proc)
+{
+        struct ctl_table *table = &uts_kern_table[proc];
+
+        proc_sys_poll_notify(table->poll);
+}
+#endif
+
 static int __init utsname_sysctl_init(void)
 {
         register_sysctl_table(uts_root_table);
diff --git a/kernel/wait.c b/kernel/wait.c
index f45ea8d2a1ce..26fa7797f90f 100644
--- a/kernel/wait.c
+++ b/kernel/wait.c
@@ -4,7 +4,7 @@
  * (C) 2004 William Irwin, Oracle
  */
 #include <linux/init.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/wait.h>
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 1783aabc6128..42fa9ad0a810 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -23,7 +23,7 @@
  * Please read Documentation/workqueue.txt for details.
  */
 
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/init.h>