1 files changed, 6 insertions, 3 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 1cced971232c..4dbb109022f3 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -578,7 +578,7 @@ struct task_struct {
         unsigned long flags;    /* per process flags, defined below */
         unsigned long ptrace;
 
-        int lock_depth;         /* Lock depth */
+        int lock_depth;         /* BKL lock depth */
 
         int prio, static_prio;
         struct list_head run_list;
@@ -661,7 +661,10 @@ struct task_struct {
         struct key *thread_keyring;     /* keyring private to this thread */
 #endif
         int oomkilladj; /* OOM kill score adjustment (bit shift). */
-        char comm[TASK_COMM_LEN];
+        char comm[TASK_COMM_LEN]; /* executable name excluding path
+                                     - access with [gs]et_task_comm (which lock
+                                       it with task_lock())
+                                     - initialized normally by flush_old_exec */
 /* file system info */
         int link_count, total_link_count;
 /* ipc stuff */
@@ -845,6 +848,7 @@ extern void sched_idle_next(void);
 extern void set_user_nice(task_t *p, long nice);
 extern int task_prio(const task_t *p);
 extern int task_nice(const task_t *p);
+extern int can_nice(const task_t *p, const int nice);
 extern int task_curr(const task_t *p);
 extern int idle_cpu(int cpu);
 extern int sched_setscheduler(struct task_struct *, int, struct sched_param *);
@@ -1011,7 +1015,6 @@ extern int  copy_thread(int, unsigned long, unsigned long, unsigned long, struct
 extern void flush_thread(void);
 extern void exit_thread(void);
 
-extern void exit_mm(struct task_struct *);
 extern void exit_files(struct task_struct *);
 extern void exit_signal(struct task_struct *);
 extern void __exit_signal(struct task_struct *);