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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2017-11-13 17:10:13 -0800 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2017-11-13 17:10:13 -0800 |
| commit | c25141062a82ae8bddced1b3ce2b57a1c0efabe0 (patch) | |
| tree | 105edf10059bc0c4f2f00338b0c861b813d1bb1a /include/linux/atomic.h | |
| parent | 26dd633e437dca218547ccbeacc71fe8a620b6f6 (diff) | |
| parent | c1b433e04ef9c0a1c4d65bfe918472ffa334dff4 (diff) | |
Merge branch 'next' into for-linus
Prepare input updates for 4.15 merge window.
Diffstat (limited to 'include/linux/atomic.h')
| -rw-r--r-- | include/linux/atomic.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/atomic.h b/include/linux/atomic.h index c56be7410130..cd18203d6ff3 100644 --- a/include/linux/atomic.h +++ b/include/linux/atomic.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* Atomic operations usable in machine independent code */ #ifndef _LINUX_ATOMIC_H #define _LINUX_ATOMIC_H @@ -38,6 +39,9 @@ * Besides, if an arch has a special barrier for acquire/release, it could * implement its own __atomic_op_* and use the same framework for building * variants + * + * If an architecture overrides __atomic_op_acquire() it will probably want + * to define smp_mb__after_spinlock(). */ #ifndef __atomic_op_acquire #define __atomic_op_acquire(op, args...) \ |