Fix recursive lock in free_uid()/free_user_ns()

[safe/jmp/linux-2.6] / include / linux / ktime.h

diff --git a/include/linux/ktime.h b/include/linux/ktime.h
index a6ddec1..ce59832 100644 (file)
--- a/include/linux/ktime.h
+++ b/include/linux/ktime.h
@@ -310,13 +310,16 @@ static inline ktime_t ktime_sub_us(const ktime_t kt, const u64 usec)
        return ktime_sub_ns(kt, usec * 1000);
 }
 
+extern ktime_t ktime_add_safe(const ktime_t lhs, const ktime_t rhs);
+
 /*
  * The resolution of the clocks. The resolution value is returned in
  * the clock_getres() system call to give application programmers an
  * idea of the (in)accuracy of timers. Timer values are rounded up to
  * this resolution values.
  */
-#define KTIME_LOW_RES          (ktime_t){ .tv64 = TICK_NSEC }
+#define LOW_RES_NSEC           TICK_NSEC
+#define KTIME_LOW_RES          (ktime_t){ .tv64 = LOW_RES_NSEC }
 
 /* Get the monotonic time in timespec format: */
 extern void ktime_get_ts(struct timespec *ts);
@@ -324,4 +327,10 @@ extern void ktime_get_ts(struct timespec *ts);
 /* Get the real (wall-) time in timespec format: */
 #define ktime_get_real_ts(ts)  getnstimeofday(ts)
 
+static inline ktime_t ns_to_ktime(u64 ns)
+{
+       static const ktime_t ktime_zero = { .tv64 = 0 };
+       return ktime_add_ns(ktime_zero, ns);
+}
+
 #endif