Merge branch 'core/locking' into tracing/ftrace

3 files changed, 9 insertions, 16 deletions

diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index cb70c1db85d0..71b567f52813 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -434,13 +434,6 @@ atomic_t nr_find_usage_forwards_checks;
 atomic_t nr_find_usage_forwards_recursions;
 atomic_t nr_find_usage_backwards_checks;
 atomic_t nr_find_usage_backwards_recursions;
-# define debug_atomic_inc(ptr)          atomic_inc(ptr)
-# define debug_atomic_dec(ptr)          atomic_dec(ptr)
-# define debug_atomic_read(ptr)         atomic_read(ptr)
-#else
-# define debug_atomic_inc(ptr)          do { } while (0)
-# define debug_atomic_dec(ptr)          do { } while (0)
-# define debug_atomic_read(ptr)         0
 #endif
 
 /*
diff --git a/kernel/softirq.c b/kernel/softirq.c
index bbf6d6496f05..7571bcb71be4 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -191,7 +191,7 @@ asmlinkage void __do_softirq(void)
         account_system_vtime(current);
 
         __local_bh_disable((unsigned long)__builtin_return_address(0));
-        trace_softirq_enter();
+        lockdep_softirq_enter();
 
         cpu = smp_processor_id();
 restart:
@@ -231,7 +231,7 @@ restart:
         if (pending)
                 wakeup_softirqd();
 
-        trace_softirq_exit();
+        lockdep_softirq_exit();
 
         account_system_vtime(current);
         _local_bh_enable();
diff --git a/kernel/user.c b/kernel/user.c
index 6a9b696128c8..fbb300e6191f 100644
--- a/kernel/user.c
+++ b/kernel/user.c
@@ -286,14 +286,12 @@ int __init uids_sysfs_init(void)
 /* work function to remove sysfs directory for a user and free up
  * corresponding structures.
  */
-static void remove_user_sysfs_dir(struct work_struct *w)
+static void cleanup_user_struct(struct work_struct *w)
 {
         struct user_struct *up = container_of(w, struct user_struct, work);
         unsigned long flags;
         int remove_user = 0;
 
-        if (up->user_ns != &init_user_ns)
-                return;
         /* Make uid_hash_remove() + sysfs_remove_file() + kobject_del()
          * atomic.
          */
@@ -312,9 +310,11 @@ static void remove_user_sysfs_dir(struct work_struct *w)
         if (!remove_user)
                 goto done;
 
-        kobject_uevent(&up->kobj, KOBJ_REMOVE);
-        kobject_del(&up->kobj);
-        kobject_put(&up->kobj);
+        if (up->user_ns == &init_user_ns) {
+                kobject_uevent(&up->kobj, KOBJ_REMOVE);
+                kobject_del(&up->kobj);
+                kobject_put(&up->kobj);
+        }
 
         sched_destroy_user(up);
         key_put(up->uid_keyring);
@@ -335,7 +335,7 @@ static void free_user(struct user_struct *up, unsigned long flags)
         atomic_inc(&up->__count);
         spin_unlock_irqrestore(&uidhash_lock, flags);
 
-        INIT_WORK(&up->work, remove_user_sysfs_dir);
+        INIT_WORK(&up->work, cleanup_user_struct);
         schedule_work(&up->work);
 }