hrtimer: add nanosleep specific restart_block member

The back and forth typecasting of restart_block->args is horrible. We
added a separate union member for futex already. Do the same for
nanosleep.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 12 insertions, 0 deletions

diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h
index 421323e5a2..accd7bad35 100644
--- a/include/linux/thread_info.h
+++ b/include/linux/thread_info.h
@@ -9,6 +9,9 @@
 
 #include <linux/types.h>
 
+struct timespec;
+struct compat_timespec;
+
 /*
  * System call restart block.
  */
@@ -26,6 +29,15 @@ struct restart_block {
                         u32 bitset;
                         u64 time;
                 } futex;
+                /* For nanosleep */
+                struct {
+                        clockid_t index;
+                        struct timespec __user *rmtp;
+#ifdef CONFIG_COMPAT
+                        struct compat_timespec __user *compat_rmtp;
+#endif
+                        u64 expires;
+                } nanosleep;
         };
 };