locking, lib/proportions: Annotate prop_local_percpu::lock as raw
The prop_local_percpu::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>
diff --git a/include/linux/proportions.h b/include/linux/proportions.h
index cf793bb..ef35bb7 100644
--- a/include/linux/proportions.h
+++ b/include/linux/proportions.h
@@ -58,7 +58,7 @@
*/
int shift;
unsigned long period;
- spinlock_t lock; /* protect the snapshot state */
+ raw_spinlock_t lock; /* protect the snapshot state */
};
int prop_local_init_percpu(struct prop_local_percpu *pl);
@@ -106,11 +106,11 @@
*/
unsigned long period;
int shift;
- spinlock_t lock; /* protect the snapshot state */
+ raw_spinlock_t lock; /* protect the snapshot state */
};
#define INIT_PROP_LOCAL_SINGLE(name) \
-{ .lock = __SPIN_LOCK_UNLOCKED(name.lock), \
+{ .lock = __RAW_SPIN_LOCK_UNLOCKED(name.lock), \
}
int prop_local_init_single(struct prop_local_single *pl);