locking, sched: Annotate thread_group_cputimer as raw

The thread_group_cputimer lock can be taken in atomic context and therefore
cannot be preempted on -rt - annotate it.

In mainline this change documents the low level nature of
the lock - otherwise there's no functional difference. Lockdep
and Sparse checking will work as usual.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index d14e058aaee..08ffab01e76 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -42,7 +42,7 @@ extern struct fs_struct init_fs;
         .cputimer       = {                                             \
                 .cputime = INIT_CPUTIME,                                \
                 .running = 0,                                           \
-                .lock = __SPIN_LOCK_UNLOCKED(sig.cputimer.lock),        \
+                .lock = __RAW_SPIN_LOCK_UNLOCKED(sig.cputimer.lock),    \
         },                                                              \
         .cred_guard_mutex =                                             \
                  __MUTEX_INITIALIZER(sig.cred_guard_mutex),             \