3 files changed, 3 insertions, 6 deletions

diff --git a/fs/aio.c b/fs/aio.c
index 0fb3117ddd93..0051fd94b44e 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -586,7 +586,6 @@ static void use_mm(struct mm_struct *mm)
         struct task_struct *tsk = current;
 
         task_lock(tsk);
-        tsk->flags |= PF_BORROWED_MM;
         active_mm = tsk->active_mm;
         atomic_inc(&mm->mm_count);
         tsk->mm = mm;
@@ -610,7 +609,6 @@ static void unuse_mm(struct mm_struct *mm)
         struct task_struct *tsk = current;
 
         task_lock(tsk);
-        tsk->flags &= ~PF_BORROWED_MM;
         tsk->mm = NULL;
         /* active_mm is still 'mm' */
         enter_lazy_tlb(mm, tsk);
diff --git a/include/linux/sched.h b/include/linux/sched.h
index eec64a4adb9d..0560999eb1db 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1483,7 +1483,6 @@ static inline void put_task_struct(struct task_struct *t)
 #define PF_EXITING      0x00000004      /* getting shut down */
 #define PF_EXITPIDONE   0x00000008      /* pi exit done on shut down */
 #define PF_VCPU         0x00000010      /* I'm a virtual CPU */
-#define PF_KTHREAD      0x00000020      /* I am a kernel thread */
 #define PF_FORKNOEXEC   0x00000040      /* forked but didn't exec */
 #define PF_SUPERPRIV    0x00000100      /* used super-user privileges */
 #define PF_DUMPCORE     0x00000200      /* dumped core */
@@ -1497,7 +1496,7 @@ static inline void put_task_struct(struct task_struct *t)
 #define PF_KSWAPD       0x00040000      /* I am kswapd */
 #define PF_SWAPOFF      0x00080000      /* I am in swapoff */
 #define PF_LESS_THROTTLE 0x00100000     /* Throttle me less: I clean memory */
-#define PF_BORROWED_MM  0x00200000      /* I am a kthread doing use_mm */
+#define PF_KTHREAD      0x00200000      /* I am a kernel thread */
 #define PF_RANDOMIZE    0x00400000      /* randomize virtual address space */
 #define PF_SWAPWRITE    0x00800000      /* Allowed to write to swap */
 #define PF_SPREAD_PAGE  0x01000000      /* Spread page cache over cpuset */
diff --git a/kernel/fork.c b/kernel/fork.c
index 228f80c9155a..eeaec6893b0d 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -474,7 +474,7 @@ EXPORT_SYMBOL_GPL(mmput);
 /**
  * get_task_mm - acquire a reference to the task's mm
  *
- * Returns %NULL if the task has no mm.  Checks PF_BORROWED_MM (meaning
+ * Returns %NULL if the task has no mm.  Checks PF_KTHREAD (meaning
  * this kernel workthread has transiently adopted a user mm with use_mm,
  * to do its AIO) is not set and if so returns a reference to it, after
  * bumping up the use count.  User must release the mm via mmput()
@@ -487,7 +487,7 @@ struct mm_struct *get_task_mm(struct task_struct *task)
         task_lock(task);
         mm = task->mm;
         if (mm) {
-                if (task->flags & PF_BORROWED_MM)
+                if (task->flags & PF_KTHREAD)
                         mm = NULL;
                 else
                         atomic_inc(&mm->mm_users);