Merge commit 'v2.6.29-rc4' into core/percpu

[pandora-kernel.git] / include / linux / sched.h

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 02e16d2..28b3f50 100644 (file)
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -443,6 +443,7 @@ struct pacct_struct {
  * @utime:             time spent in user mode, in &cputime_t units
  * @stime:             time spent in kernel mode, in &cputime_t units
  * @sum_exec_runtime:  total time spent on the CPU, in nanoseconds
+ * @lock:              lock for fields in this struct
  *
  * This structure groups together three kinds of CPU time that are
  * tracked for threads and thread groups.  Most things considering
@@ -630,7 +631,6 @@ struct user_struct {
        atomic_t inotify_devs;  /* How many inotify devs does this user have opened? */
 #endif
 #ifdef CONFIG_EPOLL
-       atomic_t epoll_devs;    /* The number of epoll descriptors currently open */
        atomic_t epoll_watches; /* The number of file descriptors currently watched */
 #endif
 #ifdef CONFIG_POSIX_MQUEUE
@@ -1161,10 +1161,9 @@ struct task_struct {
        pid_t pid;
        pid_t tgid;
 
-#ifdef CONFIG_CC_STACKPROTECTOR
        /* Canary value for the -fstack-protector gcc feature */
        unsigned long stack_canary;
-#endif
+
        /* 
         * pointers to (original) parent process, youngest child, younger sibling,
         * older sibling, respectively.  (p->father can be replaced with 
@@ -2070,6 +2069,19 @@ static inline int object_is_on_stack(void *obj)
 
 extern void thread_info_cache_init(void);
 
+#ifdef CONFIG_DEBUG_STACK_USAGE
+static inline unsigned long stack_not_used(struct task_struct *p)
+{
+       unsigned long *n = end_of_stack(p);
+
+       do {    /* Skip over canary */
+               n++;
+       } while (!*n);
+
+       return (unsigned long)n - (unsigned long)end_of_stack(p);
+}
+#endif
+
 /* set thread flags in other task's structures
  * - see asm/thread_info.h for TIF_xxxx flags available
  */