diff options
| -rw-r--r-- | include/asm-generic/atomic.h | 39 |
1 files changed, 2 insertions, 37 deletions
diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h index 11f96f40f4a7..ebacbc6b363b 100644 --- a/include/asm-generic/atomic.h +++ b/include/asm-generic/atomic.h @@ -1,7 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ /* - * Generic C implementation of atomic counter operations. Usable on - * UP systems only. Do not include in machine independent code. + * Generic C implementation of atomic counter operations. Do not include in + * machine independent code. * * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) @@ -12,23 +12,6 @@ #include <asm/cmpxchg.h> #include <asm/barrier.h> -/* - * atomic_$op() - $op integer to atomic variable - * @i: integer value to $op - * @v: pointer to the atomic variable - * - * Atomically $ops @i to @v. Does not strictly guarantee a memory-barrier, use - * smp_mb__{before,after}_atomic(). - */ - -/* - * atomic_$op_return() - $op interer to atomic variable and returns the result - * @i: integer value to $op - * @v: pointer to the atomic variable - * - * Atomically $ops @i to @v. Does imply a full memory barrier. - */ - #ifdef CONFIG_SMP /* we can build all atomic primitives from cmpxchg */ @@ -154,28 +137,10 @@ ATOMIC_OP(xor, ^) #undef ATOMIC_OP_RETURN #undef ATOMIC_OP -/* - * Atomic operations that C can't guarantee us. Useful for - * resource counting etc.. - */ - -/** - * atomic_read - read atomic variable - * @v: pointer of type atomic_t - * - * Atomically reads the value of @v. - */ #ifndef atomic_read #define atomic_read(v) READ_ONCE((v)->counter) #endif -/** - * atomic_set - set atomic variable - * @v: pointer of type atomic_t - * @i: required value - * - * Atomically sets the value of @v to @i. - */ #define atomic_set(v, i) WRITE_ONCE(((v)->counter), (i)) #include <linux/irqflags.h> |