2460 lines
64 KiB
C
2460 lines
64 KiB
C
// SPDX-License-Identifier: GPL-2.0
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// Generated by scripts/atomic/gen-atomic-fallback.sh
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// DO NOT MODIFY THIS FILE DIRECTLY
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#ifndef _LINUX_ATOMIC_FALLBACK_H
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#define _LINUX_ATOMIC_FALLBACK_H
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#include <linux/compiler.h>
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#ifndef arch_xchg_relaxed
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#define arch_xchg_acquire arch_xchg
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#define arch_xchg_release arch_xchg
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#define arch_xchg_relaxed arch_xchg
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#else /* arch_xchg_relaxed */
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#ifndef arch_xchg_acquire
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#define arch_xchg_acquire(...) \
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__atomic_op_acquire(arch_xchg, __VA_ARGS__)
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#endif
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#ifndef arch_xchg_release
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#define arch_xchg_release(...) \
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__atomic_op_release(arch_xchg, __VA_ARGS__)
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#endif
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#ifndef arch_xchg
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#define arch_xchg(...) \
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__atomic_op_fence(arch_xchg, __VA_ARGS__)
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#endif
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#endif /* arch_xchg_relaxed */
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#ifndef arch_cmpxchg_relaxed
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#define arch_cmpxchg_acquire arch_cmpxchg
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#define arch_cmpxchg_release arch_cmpxchg
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#define arch_cmpxchg_relaxed arch_cmpxchg
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#else /* arch_cmpxchg_relaxed */
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#ifndef arch_cmpxchg_acquire
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#define arch_cmpxchg_acquire(...) \
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__atomic_op_acquire(arch_cmpxchg, __VA_ARGS__)
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#endif
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#ifndef arch_cmpxchg_release
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#define arch_cmpxchg_release(...) \
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__atomic_op_release(arch_cmpxchg, __VA_ARGS__)
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#endif
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#ifndef arch_cmpxchg
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#define arch_cmpxchg(...) \
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__atomic_op_fence(arch_cmpxchg, __VA_ARGS__)
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#endif
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#endif /* arch_cmpxchg_relaxed */
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#ifndef arch_cmpxchg64_relaxed
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#define arch_cmpxchg64_acquire arch_cmpxchg64
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#define arch_cmpxchg64_release arch_cmpxchg64
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#define arch_cmpxchg64_relaxed arch_cmpxchg64
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#else /* arch_cmpxchg64_relaxed */
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#ifndef arch_cmpxchg64_acquire
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#define arch_cmpxchg64_acquire(...) \
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__atomic_op_acquire(arch_cmpxchg64, __VA_ARGS__)
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#endif
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#ifndef arch_cmpxchg64_release
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#define arch_cmpxchg64_release(...) \
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__atomic_op_release(arch_cmpxchg64, __VA_ARGS__)
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#endif
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#ifndef arch_cmpxchg64
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#define arch_cmpxchg64(...) \
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__atomic_op_fence(arch_cmpxchg64, __VA_ARGS__)
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#endif
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#endif /* arch_cmpxchg64_relaxed */
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#ifndef arch_try_cmpxchg_relaxed
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#ifdef arch_try_cmpxchg
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#define arch_try_cmpxchg_acquire arch_try_cmpxchg
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#define arch_try_cmpxchg_release arch_try_cmpxchg
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#define arch_try_cmpxchg_relaxed arch_try_cmpxchg
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#endif /* arch_try_cmpxchg */
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#ifndef arch_try_cmpxchg
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#define arch_try_cmpxchg(_ptr, _oldp, _new) \
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({ \
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typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \
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___r = arch_cmpxchg((_ptr), ___o, (_new)); \
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if (unlikely(___r != ___o)) \
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*___op = ___r; \
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likely(___r == ___o); \
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})
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#endif /* arch_try_cmpxchg */
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#ifndef arch_try_cmpxchg_acquire
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#define arch_try_cmpxchg_acquire(_ptr, _oldp, _new) \
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({ \
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typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \
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___r = arch_cmpxchg_acquire((_ptr), ___o, (_new)); \
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if (unlikely(___r != ___o)) \
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*___op = ___r; \
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likely(___r == ___o); \
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})
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#endif /* arch_try_cmpxchg_acquire */
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#ifndef arch_try_cmpxchg_release
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#define arch_try_cmpxchg_release(_ptr, _oldp, _new) \
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({ \
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typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \
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___r = arch_cmpxchg_release((_ptr), ___o, (_new)); \
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if (unlikely(___r != ___o)) \
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*___op = ___r; \
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likely(___r == ___o); \
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})
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#endif /* arch_try_cmpxchg_release */
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#ifndef arch_try_cmpxchg_relaxed
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#define arch_try_cmpxchg_relaxed(_ptr, _oldp, _new) \
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({ \
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typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \
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___r = arch_cmpxchg_relaxed((_ptr), ___o, (_new)); \
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if (unlikely(___r != ___o)) \
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*___op = ___r; \
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likely(___r == ___o); \
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})
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#endif /* arch_try_cmpxchg_relaxed */
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#else /* arch_try_cmpxchg_relaxed */
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#ifndef arch_try_cmpxchg_acquire
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#define arch_try_cmpxchg_acquire(...) \
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__atomic_op_acquire(arch_try_cmpxchg, __VA_ARGS__)
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#endif
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#ifndef arch_try_cmpxchg_release
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#define arch_try_cmpxchg_release(...) \
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__atomic_op_release(arch_try_cmpxchg, __VA_ARGS__)
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#endif
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#ifndef arch_try_cmpxchg
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#define arch_try_cmpxchg(...) \
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__atomic_op_fence(arch_try_cmpxchg, __VA_ARGS__)
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#endif
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#endif /* arch_try_cmpxchg_relaxed */
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#ifndef arch_try_cmpxchg64_relaxed
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#ifdef arch_try_cmpxchg64
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#define arch_try_cmpxchg64_acquire arch_try_cmpxchg64
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#define arch_try_cmpxchg64_release arch_try_cmpxchg64
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#define arch_try_cmpxchg64_relaxed arch_try_cmpxchg64
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#endif /* arch_try_cmpxchg64 */
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#ifndef arch_try_cmpxchg64
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#define arch_try_cmpxchg64(_ptr, _oldp, _new) \
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({ \
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typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \
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___r = arch_cmpxchg64((_ptr), ___o, (_new)); \
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if (unlikely(___r != ___o)) \
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*___op = ___r; \
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likely(___r == ___o); \
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})
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#endif /* arch_try_cmpxchg64 */
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#ifndef arch_try_cmpxchg64_acquire
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#define arch_try_cmpxchg64_acquire(_ptr, _oldp, _new) \
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({ \
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typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \
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___r = arch_cmpxchg64_acquire((_ptr), ___o, (_new)); \
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if (unlikely(___r != ___o)) \
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*___op = ___r; \
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likely(___r == ___o); \
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})
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#endif /* arch_try_cmpxchg64_acquire */
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#ifndef arch_try_cmpxchg64_release
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#define arch_try_cmpxchg64_release(_ptr, _oldp, _new) \
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({ \
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typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \
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___r = arch_cmpxchg64_release((_ptr), ___o, (_new)); \
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if (unlikely(___r != ___o)) \
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*___op = ___r; \
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likely(___r == ___o); \
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})
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#endif /* arch_try_cmpxchg64_release */
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#ifndef arch_try_cmpxchg64_relaxed
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#define arch_try_cmpxchg64_relaxed(_ptr, _oldp, _new) \
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({ \
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typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \
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___r = arch_cmpxchg64_relaxed((_ptr), ___o, (_new)); \
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if (unlikely(___r != ___o)) \
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*___op = ___r; \
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likely(___r == ___o); \
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})
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#endif /* arch_try_cmpxchg64_relaxed */
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#else /* arch_try_cmpxchg64_relaxed */
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#ifndef arch_try_cmpxchg64_acquire
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#define arch_try_cmpxchg64_acquire(...) \
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__atomic_op_acquire(arch_try_cmpxchg64, __VA_ARGS__)
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#endif
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#ifndef arch_try_cmpxchg64_release
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#define arch_try_cmpxchg64_release(...) \
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__atomic_op_release(arch_try_cmpxchg64, __VA_ARGS__)
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#endif
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#ifndef arch_try_cmpxchg64
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#define arch_try_cmpxchg64(...) \
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__atomic_op_fence(arch_try_cmpxchg64, __VA_ARGS__)
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#endif
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#endif /* arch_try_cmpxchg64_relaxed */
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#ifndef arch_atomic_read_acquire
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static __always_inline int
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arch_atomic_read_acquire(const atomic_t *v)
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{
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int ret;
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if (__native_word(atomic_t)) {
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ret = smp_load_acquire(&(v)->counter);
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} else {
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ret = arch_atomic_read(v);
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__atomic_acquire_fence();
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}
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return ret;
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}
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#define arch_atomic_read_acquire arch_atomic_read_acquire
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#endif
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#ifndef arch_atomic_set_release
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static __always_inline void
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arch_atomic_set_release(atomic_t *v, int i)
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{
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if (__native_word(atomic_t)) {
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smp_store_release(&(v)->counter, i);
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} else {
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__atomic_release_fence();
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arch_atomic_set(v, i);
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}
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}
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#define arch_atomic_set_release arch_atomic_set_release
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#endif
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#ifndef arch_atomic_add_return_relaxed
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#define arch_atomic_add_return_acquire arch_atomic_add_return
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#define arch_atomic_add_return_release arch_atomic_add_return
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#define arch_atomic_add_return_relaxed arch_atomic_add_return
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#else /* arch_atomic_add_return_relaxed */
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#ifndef arch_atomic_add_return_acquire
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static __always_inline int
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arch_atomic_add_return_acquire(int i, atomic_t *v)
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{
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int ret = arch_atomic_add_return_relaxed(i, v);
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__atomic_acquire_fence();
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return ret;
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}
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#define arch_atomic_add_return_acquire arch_atomic_add_return_acquire
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#endif
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#ifndef arch_atomic_add_return_release
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static __always_inline int
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arch_atomic_add_return_release(int i, atomic_t *v)
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{
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__atomic_release_fence();
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return arch_atomic_add_return_relaxed(i, v);
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}
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#define arch_atomic_add_return_release arch_atomic_add_return_release
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#endif
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#ifndef arch_atomic_add_return
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static __always_inline int
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arch_atomic_add_return(int i, atomic_t *v)
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{
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int ret;
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__atomic_pre_full_fence();
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ret = arch_atomic_add_return_relaxed(i, v);
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__atomic_post_full_fence();
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return ret;
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}
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#define arch_atomic_add_return arch_atomic_add_return
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#endif
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#endif /* arch_atomic_add_return_relaxed */
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#ifndef arch_atomic_fetch_add_relaxed
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#define arch_atomic_fetch_add_acquire arch_atomic_fetch_add
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#define arch_atomic_fetch_add_release arch_atomic_fetch_add
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#define arch_atomic_fetch_add_relaxed arch_atomic_fetch_add
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#else /* arch_atomic_fetch_add_relaxed */
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#ifndef arch_atomic_fetch_add_acquire
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static __always_inline int
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arch_atomic_fetch_add_acquire(int i, atomic_t *v)
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{
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int ret = arch_atomic_fetch_add_relaxed(i, v);
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__atomic_acquire_fence();
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return ret;
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}
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#define arch_atomic_fetch_add_acquire arch_atomic_fetch_add_acquire
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#endif
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#ifndef arch_atomic_fetch_add_release
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static __always_inline int
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arch_atomic_fetch_add_release(int i, atomic_t *v)
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{
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__atomic_release_fence();
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return arch_atomic_fetch_add_relaxed(i, v);
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}
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#define arch_atomic_fetch_add_release arch_atomic_fetch_add_release
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#endif
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#ifndef arch_atomic_fetch_add
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static __always_inline int
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arch_atomic_fetch_add(int i, atomic_t *v)
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{
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int ret;
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__atomic_pre_full_fence();
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ret = arch_atomic_fetch_add_relaxed(i, v);
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__atomic_post_full_fence();
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return ret;
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}
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#define arch_atomic_fetch_add arch_atomic_fetch_add
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#endif
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#endif /* arch_atomic_fetch_add_relaxed */
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#ifndef arch_atomic_sub_return_relaxed
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#define arch_atomic_sub_return_acquire arch_atomic_sub_return
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#define arch_atomic_sub_return_release arch_atomic_sub_return
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#define arch_atomic_sub_return_relaxed arch_atomic_sub_return
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#else /* arch_atomic_sub_return_relaxed */
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#ifndef arch_atomic_sub_return_acquire
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static __always_inline int
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arch_atomic_sub_return_acquire(int i, atomic_t *v)
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{
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int ret = arch_atomic_sub_return_relaxed(i, v);
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__atomic_acquire_fence();
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return ret;
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}
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#define arch_atomic_sub_return_acquire arch_atomic_sub_return_acquire
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#endif
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#ifndef arch_atomic_sub_return_release
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static __always_inline int
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arch_atomic_sub_return_release(int i, atomic_t *v)
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{
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__atomic_release_fence();
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return arch_atomic_sub_return_relaxed(i, v);
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}
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#define arch_atomic_sub_return_release arch_atomic_sub_return_release
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#endif
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#ifndef arch_atomic_sub_return
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static __always_inline int
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arch_atomic_sub_return(int i, atomic_t *v)
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{
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int ret;
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__atomic_pre_full_fence();
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ret = arch_atomic_sub_return_relaxed(i, v);
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__atomic_post_full_fence();
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return ret;
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}
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#define arch_atomic_sub_return arch_atomic_sub_return
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#endif
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#endif /* arch_atomic_sub_return_relaxed */
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#ifndef arch_atomic_fetch_sub_relaxed
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#define arch_atomic_fetch_sub_acquire arch_atomic_fetch_sub
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#define arch_atomic_fetch_sub_release arch_atomic_fetch_sub
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#define arch_atomic_fetch_sub_relaxed arch_atomic_fetch_sub
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#else /* arch_atomic_fetch_sub_relaxed */
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#ifndef arch_atomic_fetch_sub_acquire
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static __always_inline int
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arch_atomic_fetch_sub_acquire(int i, atomic_t *v)
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{
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int ret = arch_atomic_fetch_sub_relaxed(i, v);
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__atomic_acquire_fence();
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return ret;
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}
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#define arch_atomic_fetch_sub_acquire arch_atomic_fetch_sub_acquire
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#endif
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#ifndef arch_atomic_fetch_sub_release
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static __always_inline int
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arch_atomic_fetch_sub_release(int i, atomic_t *v)
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{
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__atomic_release_fence();
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return arch_atomic_fetch_sub_relaxed(i, v);
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}
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#define arch_atomic_fetch_sub_release arch_atomic_fetch_sub_release
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#endif
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#ifndef arch_atomic_fetch_sub
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static __always_inline int
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arch_atomic_fetch_sub(int i, atomic_t *v)
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{
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int ret;
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__atomic_pre_full_fence();
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ret = arch_atomic_fetch_sub_relaxed(i, v);
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__atomic_post_full_fence();
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return ret;
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}
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#define arch_atomic_fetch_sub arch_atomic_fetch_sub
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#endif
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#endif /* arch_atomic_fetch_sub_relaxed */
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#ifndef arch_atomic_inc
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static __always_inline void
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arch_atomic_inc(atomic_t *v)
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{
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arch_atomic_add(1, v);
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}
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#define arch_atomic_inc arch_atomic_inc
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#endif
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#ifndef arch_atomic_inc_return_relaxed
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#ifdef arch_atomic_inc_return
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#define arch_atomic_inc_return_acquire arch_atomic_inc_return
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#define arch_atomic_inc_return_release arch_atomic_inc_return
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#define arch_atomic_inc_return_relaxed arch_atomic_inc_return
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#endif /* arch_atomic_inc_return */
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#ifndef arch_atomic_inc_return
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static __always_inline int
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arch_atomic_inc_return(atomic_t *v)
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{
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return arch_atomic_add_return(1, v);
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}
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#define arch_atomic_inc_return arch_atomic_inc_return
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#endif
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#ifndef arch_atomic_inc_return_acquire
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static __always_inline int
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arch_atomic_inc_return_acquire(atomic_t *v)
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{
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return arch_atomic_add_return_acquire(1, v);
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}
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#define arch_atomic_inc_return_acquire arch_atomic_inc_return_acquire
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#endif
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#ifndef arch_atomic_inc_return_release
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static __always_inline int
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arch_atomic_inc_return_release(atomic_t *v)
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{
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return arch_atomic_add_return_release(1, v);
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}
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#define arch_atomic_inc_return_release arch_atomic_inc_return_release
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#endif
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#ifndef arch_atomic_inc_return_relaxed
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static __always_inline int
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arch_atomic_inc_return_relaxed(atomic_t *v)
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{
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return arch_atomic_add_return_relaxed(1, v);
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}
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#define arch_atomic_inc_return_relaxed arch_atomic_inc_return_relaxed
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#endif
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#else /* arch_atomic_inc_return_relaxed */
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#ifndef arch_atomic_inc_return_acquire
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static __always_inline int
|
|
arch_atomic_inc_return_acquire(atomic_t *v)
|
|
{
|
|
int ret = arch_atomic_inc_return_relaxed(v);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic_inc_return_acquire arch_atomic_inc_return_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic_inc_return_release
|
|
static __always_inline int
|
|
arch_atomic_inc_return_release(atomic_t *v)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic_inc_return_relaxed(v);
|
|
}
|
|
#define arch_atomic_inc_return_release arch_atomic_inc_return_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic_inc_return
|
|
static __always_inline int
|
|
arch_atomic_inc_return(atomic_t *v)
|
|
{
|
|
int ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic_inc_return_relaxed(v);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic_inc_return arch_atomic_inc_return
|
|
#endif
|
|
|
|
#endif /* arch_atomic_inc_return_relaxed */
|
|
|
|
#ifndef arch_atomic_fetch_inc_relaxed
|
|
#ifdef arch_atomic_fetch_inc
|
|
#define arch_atomic_fetch_inc_acquire arch_atomic_fetch_inc
|
|
#define arch_atomic_fetch_inc_release arch_atomic_fetch_inc
|
|
#define arch_atomic_fetch_inc_relaxed arch_atomic_fetch_inc
|
|
#endif /* arch_atomic_fetch_inc */
|
|
|
|
#ifndef arch_atomic_fetch_inc
|
|
static __always_inline int
|
|
arch_atomic_fetch_inc(atomic_t *v)
|
|
{
|
|
return arch_atomic_fetch_add(1, v);
|
|
}
|
|
#define arch_atomic_fetch_inc arch_atomic_fetch_inc
|
|
#endif
|
|
|
|
#ifndef arch_atomic_fetch_inc_acquire
|
|
static __always_inline int
|
|
arch_atomic_fetch_inc_acquire(atomic_t *v)
|
|
{
|
|
return arch_atomic_fetch_add_acquire(1, v);
|
|
}
|
|
#define arch_atomic_fetch_inc_acquire arch_atomic_fetch_inc_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic_fetch_inc_release
|
|
static __always_inline int
|
|
arch_atomic_fetch_inc_release(atomic_t *v)
|
|
{
|
|
return arch_atomic_fetch_add_release(1, v);
|
|
}
|
|
#define arch_atomic_fetch_inc_release arch_atomic_fetch_inc_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic_fetch_inc_relaxed
|
|
static __always_inline int
|
|
arch_atomic_fetch_inc_relaxed(atomic_t *v)
|
|
{
|
|
return arch_atomic_fetch_add_relaxed(1, v);
|
|
}
|
|
#define arch_atomic_fetch_inc_relaxed arch_atomic_fetch_inc_relaxed
|
|
#endif
|
|
|
|
#else /* arch_atomic_fetch_inc_relaxed */
|
|
|
|
#ifndef arch_atomic_fetch_inc_acquire
|
|
static __always_inline int
|
|
arch_atomic_fetch_inc_acquire(atomic_t *v)
|
|
{
|
|
int ret = arch_atomic_fetch_inc_relaxed(v);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic_fetch_inc_acquire arch_atomic_fetch_inc_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic_fetch_inc_release
|
|
static __always_inline int
|
|
arch_atomic_fetch_inc_release(atomic_t *v)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic_fetch_inc_relaxed(v);
|
|
}
|
|
#define arch_atomic_fetch_inc_release arch_atomic_fetch_inc_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic_fetch_inc
|
|
static __always_inline int
|
|
arch_atomic_fetch_inc(atomic_t *v)
|
|
{
|
|
int ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic_fetch_inc_relaxed(v);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic_fetch_inc arch_atomic_fetch_inc
|
|
#endif
|
|
|
|
#endif /* arch_atomic_fetch_inc_relaxed */
|
|
|
|
#ifndef arch_atomic_dec
|
|
static __always_inline void
|
|
arch_atomic_dec(atomic_t *v)
|
|
{
|
|
arch_atomic_sub(1, v);
|
|
}
|
|
#define arch_atomic_dec arch_atomic_dec
|
|
#endif
|
|
|
|
#ifndef arch_atomic_dec_return_relaxed
|
|
#ifdef arch_atomic_dec_return
|
|
#define arch_atomic_dec_return_acquire arch_atomic_dec_return
|
|
#define arch_atomic_dec_return_release arch_atomic_dec_return
|
|
#define arch_atomic_dec_return_relaxed arch_atomic_dec_return
|
|
#endif /* arch_atomic_dec_return */
|
|
|
|
#ifndef arch_atomic_dec_return
|
|
static __always_inline int
|
|
arch_atomic_dec_return(atomic_t *v)
|
|
{
|
|
return arch_atomic_sub_return(1, v);
|
|
}
|
|
#define arch_atomic_dec_return arch_atomic_dec_return
|
|
#endif
|
|
|
|
#ifndef arch_atomic_dec_return_acquire
|
|
static __always_inline int
|
|
arch_atomic_dec_return_acquire(atomic_t *v)
|
|
{
|
|
return arch_atomic_sub_return_acquire(1, v);
|
|
}
|
|
#define arch_atomic_dec_return_acquire arch_atomic_dec_return_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic_dec_return_release
|
|
static __always_inline int
|
|
arch_atomic_dec_return_release(atomic_t *v)
|
|
{
|
|
return arch_atomic_sub_return_release(1, v);
|
|
}
|
|
#define arch_atomic_dec_return_release arch_atomic_dec_return_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic_dec_return_relaxed
|
|
static __always_inline int
|
|
arch_atomic_dec_return_relaxed(atomic_t *v)
|
|
{
|
|
return arch_atomic_sub_return_relaxed(1, v);
|
|
}
|
|
#define arch_atomic_dec_return_relaxed arch_atomic_dec_return_relaxed
|
|
#endif
|
|
|
|
#else /* arch_atomic_dec_return_relaxed */
|
|
|
|
#ifndef arch_atomic_dec_return_acquire
|
|
static __always_inline int
|
|
arch_atomic_dec_return_acquire(atomic_t *v)
|
|
{
|
|
int ret = arch_atomic_dec_return_relaxed(v);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic_dec_return_acquire arch_atomic_dec_return_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic_dec_return_release
|
|
static __always_inline int
|
|
arch_atomic_dec_return_release(atomic_t *v)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic_dec_return_relaxed(v);
|
|
}
|
|
#define arch_atomic_dec_return_release arch_atomic_dec_return_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic_dec_return
|
|
static __always_inline int
|
|
arch_atomic_dec_return(atomic_t *v)
|
|
{
|
|
int ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic_dec_return_relaxed(v);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic_dec_return arch_atomic_dec_return
|
|
#endif
|
|
|
|
#endif /* arch_atomic_dec_return_relaxed */
|
|
|
|
#ifndef arch_atomic_fetch_dec_relaxed
|
|
#ifdef arch_atomic_fetch_dec
|
|
#define arch_atomic_fetch_dec_acquire arch_atomic_fetch_dec
|
|
#define arch_atomic_fetch_dec_release arch_atomic_fetch_dec
|
|
#define arch_atomic_fetch_dec_relaxed arch_atomic_fetch_dec
|
|
#endif /* arch_atomic_fetch_dec */
|
|
|
|
#ifndef arch_atomic_fetch_dec
|
|
static __always_inline int
|
|
arch_atomic_fetch_dec(atomic_t *v)
|
|
{
|
|
return arch_atomic_fetch_sub(1, v);
|
|
}
|
|
#define arch_atomic_fetch_dec arch_atomic_fetch_dec
|
|
#endif
|
|
|
|
#ifndef arch_atomic_fetch_dec_acquire
|
|
static __always_inline int
|
|
arch_atomic_fetch_dec_acquire(atomic_t *v)
|
|
{
|
|
return arch_atomic_fetch_sub_acquire(1, v);
|
|
}
|
|
#define arch_atomic_fetch_dec_acquire arch_atomic_fetch_dec_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic_fetch_dec_release
|
|
static __always_inline int
|
|
arch_atomic_fetch_dec_release(atomic_t *v)
|
|
{
|
|
return arch_atomic_fetch_sub_release(1, v);
|
|
}
|
|
#define arch_atomic_fetch_dec_release arch_atomic_fetch_dec_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic_fetch_dec_relaxed
|
|
static __always_inline int
|
|
arch_atomic_fetch_dec_relaxed(atomic_t *v)
|
|
{
|
|
return arch_atomic_fetch_sub_relaxed(1, v);
|
|
}
|
|
#define arch_atomic_fetch_dec_relaxed arch_atomic_fetch_dec_relaxed
|
|
#endif
|
|
|
|
#else /* arch_atomic_fetch_dec_relaxed */
|
|
|
|
#ifndef arch_atomic_fetch_dec_acquire
|
|
static __always_inline int
|
|
arch_atomic_fetch_dec_acquire(atomic_t *v)
|
|
{
|
|
int ret = arch_atomic_fetch_dec_relaxed(v);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic_fetch_dec_acquire arch_atomic_fetch_dec_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic_fetch_dec_release
|
|
static __always_inline int
|
|
arch_atomic_fetch_dec_release(atomic_t *v)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic_fetch_dec_relaxed(v);
|
|
}
|
|
#define arch_atomic_fetch_dec_release arch_atomic_fetch_dec_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic_fetch_dec
|
|
static __always_inline int
|
|
arch_atomic_fetch_dec(atomic_t *v)
|
|
{
|
|
int ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic_fetch_dec_relaxed(v);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic_fetch_dec arch_atomic_fetch_dec
|
|
#endif
|
|
|
|
#endif /* arch_atomic_fetch_dec_relaxed */
|
|
|
|
#ifndef arch_atomic_fetch_and_relaxed
|
|
#define arch_atomic_fetch_and_acquire arch_atomic_fetch_and
|
|
#define arch_atomic_fetch_and_release arch_atomic_fetch_and
|
|
#define arch_atomic_fetch_and_relaxed arch_atomic_fetch_and
|
|
#else /* arch_atomic_fetch_and_relaxed */
|
|
|
|
#ifndef arch_atomic_fetch_and_acquire
|
|
static __always_inline int
|
|
arch_atomic_fetch_and_acquire(int i, atomic_t *v)
|
|
{
|
|
int ret = arch_atomic_fetch_and_relaxed(i, v);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic_fetch_and_acquire arch_atomic_fetch_and_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic_fetch_and_release
|
|
static __always_inline int
|
|
arch_atomic_fetch_and_release(int i, atomic_t *v)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic_fetch_and_relaxed(i, v);
|
|
}
|
|
#define arch_atomic_fetch_and_release arch_atomic_fetch_and_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic_fetch_and
|
|
static __always_inline int
|
|
arch_atomic_fetch_and(int i, atomic_t *v)
|
|
{
|
|
int ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic_fetch_and_relaxed(i, v);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic_fetch_and arch_atomic_fetch_and
|
|
#endif
|
|
|
|
#endif /* arch_atomic_fetch_and_relaxed */
|
|
|
|
#ifndef arch_atomic_andnot
|
|
static __always_inline void
|
|
arch_atomic_andnot(int i, atomic_t *v)
|
|
{
|
|
arch_atomic_and(~i, v);
|
|
}
|
|
#define arch_atomic_andnot arch_atomic_andnot
|
|
#endif
|
|
|
|
#ifndef arch_atomic_fetch_andnot_relaxed
|
|
#ifdef arch_atomic_fetch_andnot
|
|
#define arch_atomic_fetch_andnot_acquire arch_atomic_fetch_andnot
|
|
#define arch_atomic_fetch_andnot_release arch_atomic_fetch_andnot
|
|
#define arch_atomic_fetch_andnot_relaxed arch_atomic_fetch_andnot
|
|
#endif /* arch_atomic_fetch_andnot */
|
|
|
|
#ifndef arch_atomic_fetch_andnot
|
|
static __always_inline int
|
|
arch_atomic_fetch_andnot(int i, atomic_t *v)
|
|
{
|
|
return arch_atomic_fetch_and(~i, v);
|
|
}
|
|
#define arch_atomic_fetch_andnot arch_atomic_fetch_andnot
|
|
#endif
|
|
|
|
#ifndef arch_atomic_fetch_andnot_acquire
|
|
static __always_inline int
|
|
arch_atomic_fetch_andnot_acquire(int i, atomic_t *v)
|
|
{
|
|
return arch_atomic_fetch_and_acquire(~i, v);
|
|
}
|
|
#define arch_atomic_fetch_andnot_acquire arch_atomic_fetch_andnot_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic_fetch_andnot_release
|
|
static __always_inline int
|
|
arch_atomic_fetch_andnot_release(int i, atomic_t *v)
|
|
{
|
|
return arch_atomic_fetch_and_release(~i, v);
|
|
}
|
|
#define arch_atomic_fetch_andnot_release arch_atomic_fetch_andnot_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic_fetch_andnot_relaxed
|
|
static __always_inline int
|
|
arch_atomic_fetch_andnot_relaxed(int i, atomic_t *v)
|
|
{
|
|
return arch_atomic_fetch_and_relaxed(~i, v);
|
|
}
|
|
#define arch_atomic_fetch_andnot_relaxed arch_atomic_fetch_andnot_relaxed
|
|
#endif
|
|
|
|
#else /* arch_atomic_fetch_andnot_relaxed */
|
|
|
|
#ifndef arch_atomic_fetch_andnot_acquire
|
|
static __always_inline int
|
|
arch_atomic_fetch_andnot_acquire(int i, atomic_t *v)
|
|
{
|
|
int ret = arch_atomic_fetch_andnot_relaxed(i, v);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic_fetch_andnot_acquire arch_atomic_fetch_andnot_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic_fetch_andnot_release
|
|
static __always_inline int
|
|
arch_atomic_fetch_andnot_release(int i, atomic_t *v)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic_fetch_andnot_relaxed(i, v);
|
|
}
|
|
#define arch_atomic_fetch_andnot_release arch_atomic_fetch_andnot_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic_fetch_andnot
|
|
static __always_inline int
|
|
arch_atomic_fetch_andnot(int i, atomic_t *v)
|
|
{
|
|
int ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic_fetch_andnot_relaxed(i, v);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic_fetch_andnot arch_atomic_fetch_andnot
|
|
#endif
|
|
|
|
#endif /* arch_atomic_fetch_andnot_relaxed */
|
|
|
|
#ifndef arch_atomic_fetch_or_relaxed
|
|
#define arch_atomic_fetch_or_acquire arch_atomic_fetch_or
|
|
#define arch_atomic_fetch_or_release arch_atomic_fetch_or
|
|
#define arch_atomic_fetch_or_relaxed arch_atomic_fetch_or
|
|
#else /* arch_atomic_fetch_or_relaxed */
|
|
|
|
#ifndef arch_atomic_fetch_or_acquire
|
|
static __always_inline int
|
|
arch_atomic_fetch_or_acquire(int i, atomic_t *v)
|
|
{
|
|
int ret = arch_atomic_fetch_or_relaxed(i, v);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic_fetch_or_acquire arch_atomic_fetch_or_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic_fetch_or_release
|
|
static __always_inline int
|
|
arch_atomic_fetch_or_release(int i, atomic_t *v)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic_fetch_or_relaxed(i, v);
|
|
}
|
|
#define arch_atomic_fetch_or_release arch_atomic_fetch_or_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic_fetch_or
|
|
static __always_inline int
|
|
arch_atomic_fetch_or(int i, atomic_t *v)
|
|
{
|
|
int ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic_fetch_or_relaxed(i, v);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic_fetch_or arch_atomic_fetch_or
|
|
#endif
|
|
|
|
#endif /* arch_atomic_fetch_or_relaxed */
|
|
|
|
#ifndef arch_atomic_fetch_xor_relaxed
|
|
#define arch_atomic_fetch_xor_acquire arch_atomic_fetch_xor
|
|
#define arch_atomic_fetch_xor_release arch_atomic_fetch_xor
|
|
#define arch_atomic_fetch_xor_relaxed arch_atomic_fetch_xor
|
|
#else /* arch_atomic_fetch_xor_relaxed */
|
|
|
|
#ifndef arch_atomic_fetch_xor_acquire
|
|
static __always_inline int
|
|
arch_atomic_fetch_xor_acquire(int i, atomic_t *v)
|
|
{
|
|
int ret = arch_atomic_fetch_xor_relaxed(i, v);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic_fetch_xor_acquire arch_atomic_fetch_xor_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic_fetch_xor_release
|
|
static __always_inline int
|
|
arch_atomic_fetch_xor_release(int i, atomic_t *v)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic_fetch_xor_relaxed(i, v);
|
|
}
|
|
#define arch_atomic_fetch_xor_release arch_atomic_fetch_xor_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic_fetch_xor
|
|
static __always_inline int
|
|
arch_atomic_fetch_xor(int i, atomic_t *v)
|
|
{
|
|
int ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic_fetch_xor_relaxed(i, v);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic_fetch_xor arch_atomic_fetch_xor
|
|
#endif
|
|
|
|
#endif /* arch_atomic_fetch_xor_relaxed */
|
|
|
|
#ifndef arch_atomic_xchg_relaxed
|
|
#define arch_atomic_xchg_acquire arch_atomic_xchg
|
|
#define arch_atomic_xchg_release arch_atomic_xchg
|
|
#define arch_atomic_xchg_relaxed arch_atomic_xchg
|
|
#else /* arch_atomic_xchg_relaxed */
|
|
|
|
#ifndef arch_atomic_xchg_acquire
|
|
static __always_inline int
|
|
arch_atomic_xchg_acquire(atomic_t *v, int i)
|
|
{
|
|
int ret = arch_atomic_xchg_relaxed(v, i);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic_xchg_acquire arch_atomic_xchg_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic_xchg_release
|
|
static __always_inline int
|
|
arch_atomic_xchg_release(atomic_t *v, int i)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic_xchg_relaxed(v, i);
|
|
}
|
|
#define arch_atomic_xchg_release arch_atomic_xchg_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic_xchg
|
|
static __always_inline int
|
|
arch_atomic_xchg(atomic_t *v, int i)
|
|
{
|
|
int ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic_xchg_relaxed(v, i);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic_xchg arch_atomic_xchg
|
|
#endif
|
|
|
|
#endif /* arch_atomic_xchg_relaxed */
|
|
|
|
#ifndef arch_atomic_cmpxchg_relaxed
|
|
#define arch_atomic_cmpxchg_acquire arch_atomic_cmpxchg
|
|
#define arch_atomic_cmpxchg_release arch_atomic_cmpxchg
|
|
#define arch_atomic_cmpxchg_relaxed arch_atomic_cmpxchg
|
|
#else /* arch_atomic_cmpxchg_relaxed */
|
|
|
|
#ifndef arch_atomic_cmpxchg_acquire
|
|
static __always_inline int
|
|
arch_atomic_cmpxchg_acquire(atomic_t *v, int old, int new)
|
|
{
|
|
int ret = arch_atomic_cmpxchg_relaxed(v, old, new);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic_cmpxchg_acquire arch_atomic_cmpxchg_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic_cmpxchg_release
|
|
static __always_inline int
|
|
arch_atomic_cmpxchg_release(atomic_t *v, int old, int new)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic_cmpxchg_relaxed(v, old, new);
|
|
}
|
|
#define arch_atomic_cmpxchg_release arch_atomic_cmpxchg_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic_cmpxchg
|
|
static __always_inline int
|
|
arch_atomic_cmpxchg(atomic_t *v, int old, int new)
|
|
{
|
|
int ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic_cmpxchg_relaxed(v, old, new);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic_cmpxchg arch_atomic_cmpxchg
|
|
#endif
|
|
|
|
#endif /* arch_atomic_cmpxchg_relaxed */
|
|
|
|
#ifndef arch_atomic_try_cmpxchg_relaxed
|
|
#ifdef arch_atomic_try_cmpxchg
|
|
#define arch_atomic_try_cmpxchg_acquire arch_atomic_try_cmpxchg
|
|
#define arch_atomic_try_cmpxchg_release arch_atomic_try_cmpxchg
|
|
#define arch_atomic_try_cmpxchg_relaxed arch_atomic_try_cmpxchg
|
|
#endif /* arch_atomic_try_cmpxchg */
|
|
|
|
#ifndef arch_atomic_try_cmpxchg
|
|
static __always_inline bool
|
|
arch_atomic_try_cmpxchg(atomic_t *v, int *old, int new)
|
|
{
|
|
int r, o = *old;
|
|
r = arch_atomic_cmpxchg(v, o, new);
|
|
if (unlikely(r != o))
|
|
*old = r;
|
|
return likely(r == o);
|
|
}
|
|
#define arch_atomic_try_cmpxchg arch_atomic_try_cmpxchg
|
|
#endif
|
|
|
|
#ifndef arch_atomic_try_cmpxchg_acquire
|
|
static __always_inline bool
|
|
arch_atomic_try_cmpxchg_acquire(atomic_t *v, int *old, int new)
|
|
{
|
|
int r, o = *old;
|
|
r = arch_atomic_cmpxchg_acquire(v, o, new);
|
|
if (unlikely(r != o))
|
|
*old = r;
|
|
return likely(r == o);
|
|
}
|
|
#define arch_atomic_try_cmpxchg_acquire arch_atomic_try_cmpxchg_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic_try_cmpxchg_release
|
|
static __always_inline bool
|
|
arch_atomic_try_cmpxchg_release(atomic_t *v, int *old, int new)
|
|
{
|
|
int r, o = *old;
|
|
r = arch_atomic_cmpxchg_release(v, o, new);
|
|
if (unlikely(r != o))
|
|
*old = r;
|
|
return likely(r == o);
|
|
}
|
|
#define arch_atomic_try_cmpxchg_release arch_atomic_try_cmpxchg_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic_try_cmpxchg_relaxed
|
|
static __always_inline bool
|
|
arch_atomic_try_cmpxchg_relaxed(atomic_t *v, int *old, int new)
|
|
{
|
|
int r, o = *old;
|
|
r = arch_atomic_cmpxchg_relaxed(v, o, new);
|
|
if (unlikely(r != o))
|
|
*old = r;
|
|
return likely(r == o);
|
|
}
|
|
#define arch_atomic_try_cmpxchg_relaxed arch_atomic_try_cmpxchg_relaxed
|
|
#endif
|
|
|
|
#else /* arch_atomic_try_cmpxchg_relaxed */
|
|
|
|
#ifndef arch_atomic_try_cmpxchg_acquire
|
|
static __always_inline bool
|
|
arch_atomic_try_cmpxchg_acquire(atomic_t *v, int *old, int new)
|
|
{
|
|
bool ret = arch_atomic_try_cmpxchg_relaxed(v, old, new);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic_try_cmpxchg_acquire arch_atomic_try_cmpxchg_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic_try_cmpxchg_release
|
|
static __always_inline bool
|
|
arch_atomic_try_cmpxchg_release(atomic_t *v, int *old, int new)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic_try_cmpxchg_relaxed(v, old, new);
|
|
}
|
|
#define arch_atomic_try_cmpxchg_release arch_atomic_try_cmpxchg_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic_try_cmpxchg
|
|
static __always_inline bool
|
|
arch_atomic_try_cmpxchg(atomic_t *v, int *old, int new)
|
|
{
|
|
bool ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic_try_cmpxchg_relaxed(v, old, new);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic_try_cmpxchg arch_atomic_try_cmpxchg
|
|
#endif
|
|
|
|
#endif /* arch_atomic_try_cmpxchg_relaxed */
|
|
|
|
#ifndef arch_atomic_sub_and_test
|
|
/**
|
|
* arch_atomic_sub_and_test - subtract value from variable and test result
|
|
* @i: integer value to subtract
|
|
* @v: pointer of type atomic_t
|
|
*
|
|
* Atomically subtracts @i from @v and returns
|
|
* true if the result is zero, or false for all
|
|
* other cases.
|
|
*/
|
|
static __always_inline bool
|
|
arch_atomic_sub_and_test(int i, atomic_t *v)
|
|
{
|
|
return arch_atomic_sub_return(i, v) == 0;
|
|
}
|
|
#define arch_atomic_sub_and_test arch_atomic_sub_and_test
|
|
#endif
|
|
|
|
#ifndef arch_atomic_dec_and_test
|
|
/**
|
|
* arch_atomic_dec_and_test - decrement and test
|
|
* @v: pointer of type atomic_t
|
|
*
|
|
* Atomically decrements @v by 1 and
|
|
* returns true if the result is 0, or false for all other
|
|
* cases.
|
|
*/
|
|
static __always_inline bool
|
|
arch_atomic_dec_and_test(atomic_t *v)
|
|
{
|
|
return arch_atomic_dec_return(v) == 0;
|
|
}
|
|
#define arch_atomic_dec_and_test arch_atomic_dec_and_test
|
|
#endif
|
|
|
|
#ifndef arch_atomic_inc_and_test
|
|
/**
|
|
* arch_atomic_inc_and_test - increment and test
|
|
* @v: pointer of type atomic_t
|
|
*
|
|
* Atomically increments @v by 1
|
|
* and returns true if the result is zero, or false for all
|
|
* other cases.
|
|
*/
|
|
static __always_inline bool
|
|
arch_atomic_inc_and_test(atomic_t *v)
|
|
{
|
|
return arch_atomic_inc_return(v) == 0;
|
|
}
|
|
#define arch_atomic_inc_and_test arch_atomic_inc_and_test
|
|
#endif
|
|
|
|
#ifndef arch_atomic_add_negative
|
|
/**
|
|
* arch_atomic_add_negative - add and test if negative
|
|
* @i: integer value to add
|
|
* @v: pointer of type atomic_t
|
|
*
|
|
* Atomically adds @i to @v and returns true
|
|
* if the result is negative, or false when
|
|
* result is greater than or equal to zero.
|
|
*/
|
|
static __always_inline bool
|
|
arch_atomic_add_negative(int i, atomic_t *v)
|
|
{
|
|
return arch_atomic_add_return(i, v) < 0;
|
|
}
|
|
#define arch_atomic_add_negative arch_atomic_add_negative
|
|
#endif
|
|
|
|
#ifndef arch_atomic_fetch_add_unless
|
|
/**
|
|
* arch_atomic_fetch_add_unless - add unless the number is already a given value
|
|
* @v: pointer of type atomic_t
|
|
* @a: the amount to add to v...
|
|
* @u: ...unless v is equal to u.
|
|
*
|
|
* Atomically adds @a to @v, so long as @v was not already @u.
|
|
* Returns original value of @v
|
|
*/
|
|
static __always_inline int
|
|
arch_atomic_fetch_add_unless(atomic_t *v, int a, int u)
|
|
{
|
|
int c = arch_atomic_read(v);
|
|
|
|
do {
|
|
if (unlikely(c == u))
|
|
break;
|
|
} while (!arch_atomic_try_cmpxchg(v, &c, c + a));
|
|
|
|
return c;
|
|
}
|
|
#define arch_atomic_fetch_add_unless arch_atomic_fetch_add_unless
|
|
#endif
|
|
|
|
#ifndef arch_atomic_add_unless
|
|
/**
|
|
* arch_atomic_add_unless - add unless the number is already a given value
|
|
* @v: pointer of type atomic_t
|
|
* @a: the amount to add to v...
|
|
* @u: ...unless v is equal to u.
|
|
*
|
|
* Atomically adds @a to @v, if @v was not already @u.
|
|
* Returns true if the addition was done.
|
|
*/
|
|
static __always_inline bool
|
|
arch_atomic_add_unless(atomic_t *v, int a, int u)
|
|
{
|
|
return arch_atomic_fetch_add_unless(v, a, u) != u;
|
|
}
|
|
#define arch_atomic_add_unless arch_atomic_add_unless
|
|
#endif
|
|
|
|
#ifndef arch_atomic_inc_not_zero
|
|
/**
|
|
* arch_atomic_inc_not_zero - increment unless the number is zero
|
|
* @v: pointer of type atomic_t
|
|
*
|
|
* Atomically increments @v by 1, if @v is non-zero.
|
|
* Returns true if the increment was done.
|
|
*/
|
|
static __always_inline bool
|
|
arch_atomic_inc_not_zero(atomic_t *v)
|
|
{
|
|
return arch_atomic_add_unless(v, 1, 0);
|
|
}
|
|
#define arch_atomic_inc_not_zero arch_atomic_inc_not_zero
|
|
#endif
|
|
|
|
#ifndef arch_atomic_inc_unless_negative
|
|
static __always_inline bool
|
|
arch_atomic_inc_unless_negative(atomic_t *v)
|
|
{
|
|
int c = arch_atomic_read(v);
|
|
|
|
do {
|
|
if (unlikely(c < 0))
|
|
return false;
|
|
} while (!arch_atomic_try_cmpxchg(v, &c, c + 1));
|
|
|
|
return true;
|
|
}
|
|
#define arch_atomic_inc_unless_negative arch_atomic_inc_unless_negative
|
|
#endif
|
|
|
|
#ifndef arch_atomic_dec_unless_positive
|
|
static __always_inline bool
|
|
arch_atomic_dec_unless_positive(atomic_t *v)
|
|
{
|
|
int c = arch_atomic_read(v);
|
|
|
|
do {
|
|
if (unlikely(c > 0))
|
|
return false;
|
|
} while (!arch_atomic_try_cmpxchg(v, &c, c - 1));
|
|
|
|
return true;
|
|
}
|
|
#define arch_atomic_dec_unless_positive arch_atomic_dec_unless_positive
|
|
#endif
|
|
|
|
#ifndef arch_atomic_dec_if_positive
|
|
static __always_inline int
|
|
arch_atomic_dec_if_positive(atomic_t *v)
|
|
{
|
|
int dec, c = arch_atomic_read(v);
|
|
|
|
do {
|
|
dec = c - 1;
|
|
if (unlikely(dec < 0))
|
|
break;
|
|
} while (!arch_atomic_try_cmpxchg(v, &c, dec));
|
|
|
|
return dec;
|
|
}
|
|
#define arch_atomic_dec_if_positive arch_atomic_dec_if_positive
|
|
#endif
|
|
|
|
#ifdef CONFIG_GENERIC_ATOMIC64
|
|
#include <asm-generic/atomic64.h>
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_read_acquire
|
|
static __always_inline s64
|
|
arch_atomic64_read_acquire(const atomic64_t *v)
|
|
{
|
|
s64 ret;
|
|
|
|
if (__native_word(atomic64_t)) {
|
|
ret = smp_load_acquire(&(v)->counter);
|
|
} else {
|
|
ret = arch_atomic64_read(v);
|
|
__atomic_acquire_fence();
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_read_acquire arch_atomic64_read_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_set_release
|
|
static __always_inline void
|
|
arch_atomic64_set_release(atomic64_t *v, s64 i)
|
|
{
|
|
if (__native_word(atomic64_t)) {
|
|
smp_store_release(&(v)->counter, i);
|
|
} else {
|
|
__atomic_release_fence();
|
|
arch_atomic64_set(v, i);
|
|
}
|
|
}
|
|
#define arch_atomic64_set_release arch_atomic64_set_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_add_return_relaxed
|
|
#define arch_atomic64_add_return_acquire arch_atomic64_add_return
|
|
#define arch_atomic64_add_return_release arch_atomic64_add_return
|
|
#define arch_atomic64_add_return_relaxed arch_atomic64_add_return
|
|
#else /* arch_atomic64_add_return_relaxed */
|
|
|
|
#ifndef arch_atomic64_add_return_acquire
|
|
static __always_inline s64
|
|
arch_atomic64_add_return_acquire(s64 i, atomic64_t *v)
|
|
{
|
|
s64 ret = arch_atomic64_add_return_relaxed(i, v);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_add_return_acquire arch_atomic64_add_return_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_add_return_release
|
|
static __always_inline s64
|
|
arch_atomic64_add_return_release(s64 i, atomic64_t *v)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic64_add_return_relaxed(i, v);
|
|
}
|
|
#define arch_atomic64_add_return_release arch_atomic64_add_return_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_add_return
|
|
static __always_inline s64
|
|
arch_atomic64_add_return(s64 i, atomic64_t *v)
|
|
{
|
|
s64 ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic64_add_return_relaxed(i, v);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_add_return arch_atomic64_add_return
|
|
#endif
|
|
|
|
#endif /* arch_atomic64_add_return_relaxed */
|
|
|
|
#ifndef arch_atomic64_fetch_add_relaxed
|
|
#define arch_atomic64_fetch_add_acquire arch_atomic64_fetch_add
|
|
#define arch_atomic64_fetch_add_release arch_atomic64_fetch_add
|
|
#define arch_atomic64_fetch_add_relaxed arch_atomic64_fetch_add
|
|
#else /* arch_atomic64_fetch_add_relaxed */
|
|
|
|
#ifndef arch_atomic64_fetch_add_acquire
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_add_acquire(s64 i, atomic64_t *v)
|
|
{
|
|
s64 ret = arch_atomic64_fetch_add_relaxed(i, v);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_fetch_add_acquire arch_atomic64_fetch_add_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_add_release
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_add_release(s64 i, atomic64_t *v)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic64_fetch_add_relaxed(i, v);
|
|
}
|
|
#define arch_atomic64_fetch_add_release arch_atomic64_fetch_add_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_add
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_add(s64 i, atomic64_t *v)
|
|
{
|
|
s64 ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic64_fetch_add_relaxed(i, v);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_fetch_add arch_atomic64_fetch_add
|
|
#endif
|
|
|
|
#endif /* arch_atomic64_fetch_add_relaxed */
|
|
|
|
#ifndef arch_atomic64_sub_return_relaxed
|
|
#define arch_atomic64_sub_return_acquire arch_atomic64_sub_return
|
|
#define arch_atomic64_sub_return_release arch_atomic64_sub_return
|
|
#define arch_atomic64_sub_return_relaxed arch_atomic64_sub_return
|
|
#else /* arch_atomic64_sub_return_relaxed */
|
|
|
|
#ifndef arch_atomic64_sub_return_acquire
|
|
static __always_inline s64
|
|
arch_atomic64_sub_return_acquire(s64 i, atomic64_t *v)
|
|
{
|
|
s64 ret = arch_atomic64_sub_return_relaxed(i, v);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_sub_return_acquire arch_atomic64_sub_return_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_sub_return_release
|
|
static __always_inline s64
|
|
arch_atomic64_sub_return_release(s64 i, atomic64_t *v)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic64_sub_return_relaxed(i, v);
|
|
}
|
|
#define arch_atomic64_sub_return_release arch_atomic64_sub_return_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_sub_return
|
|
static __always_inline s64
|
|
arch_atomic64_sub_return(s64 i, atomic64_t *v)
|
|
{
|
|
s64 ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic64_sub_return_relaxed(i, v);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_sub_return arch_atomic64_sub_return
|
|
#endif
|
|
|
|
#endif /* arch_atomic64_sub_return_relaxed */
|
|
|
|
#ifndef arch_atomic64_fetch_sub_relaxed
|
|
#define arch_atomic64_fetch_sub_acquire arch_atomic64_fetch_sub
|
|
#define arch_atomic64_fetch_sub_release arch_atomic64_fetch_sub
|
|
#define arch_atomic64_fetch_sub_relaxed arch_atomic64_fetch_sub
|
|
#else /* arch_atomic64_fetch_sub_relaxed */
|
|
|
|
#ifndef arch_atomic64_fetch_sub_acquire
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_sub_acquire(s64 i, atomic64_t *v)
|
|
{
|
|
s64 ret = arch_atomic64_fetch_sub_relaxed(i, v);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_fetch_sub_acquire arch_atomic64_fetch_sub_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_sub_release
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_sub_release(s64 i, atomic64_t *v)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic64_fetch_sub_relaxed(i, v);
|
|
}
|
|
#define arch_atomic64_fetch_sub_release arch_atomic64_fetch_sub_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_sub
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_sub(s64 i, atomic64_t *v)
|
|
{
|
|
s64 ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic64_fetch_sub_relaxed(i, v);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_fetch_sub arch_atomic64_fetch_sub
|
|
#endif
|
|
|
|
#endif /* arch_atomic64_fetch_sub_relaxed */
|
|
|
|
#ifndef arch_atomic64_inc
|
|
static __always_inline void
|
|
arch_atomic64_inc(atomic64_t *v)
|
|
{
|
|
arch_atomic64_add(1, v);
|
|
}
|
|
#define arch_atomic64_inc arch_atomic64_inc
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_inc_return_relaxed
|
|
#ifdef arch_atomic64_inc_return
|
|
#define arch_atomic64_inc_return_acquire arch_atomic64_inc_return
|
|
#define arch_atomic64_inc_return_release arch_atomic64_inc_return
|
|
#define arch_atomic64_inc_return_relaxed arch_atomic64_inc_return
|
|
#endif /* arch_atomic64_inc_return */
|
|
|
|
#ifndef arch_atomic64_inc_return
|
|
static __always_inline s64
|
|
arch_atomic64_inc_return(atomic64_t *v)
|
|
{
|
|
return arch_atomic64_add_return(1, v);
|
|
}
|
|
#define arch_atomic64_inc_return arch_atomic64_inc_return
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_inc_return_acquire
|
|
static __always_inline s64
|
|
arch_atomic64_inc_return_acquire(atomic64_t *v)
|
|
{
|
|
return arch_atomic64_add_return_acquire(1, v);
|
|
}
|
|
#define arch_atomic64_inc_return_acquire arch_atomic64_inc_return_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_inc_return_release
|
|
static __always_inline s64
|
|
arch_atomic64_inc_return_release(atomic64_t *v)
|
|
{
|
|
return arch_atomic64_add_return_release(1, v);
|
|
}
|
|
#define arch_atomic64_inc_return_release arch_atomic64_inc_return_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_inc_return_relaxed
|
|
static __always_inline s64
|
|
arch_atomic64_inc_return_relaxed(atomic64_t *v)
|
|
{
|
|
return arch_atomic64_add_return_relaxed(1, v);
|
|
}
|
|
#define arch_atomic64_inc_return_relaxed arch_atomic64_inc_return_relaxed
|
|
#endif
|
|
|
|
#else /* arch_atomic64_inc_return_relaxed */
|
|
|
|
#ifndef arch_atomic64_inc_return_acquire
|
|
static __always_inline s64
|
|
arch_atomic64_inc_return_acquire(atomic64_t *v)
|
|
{
|
|
s64 ret = arch_atomic64_inc_return_relaxed(v);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_inc_return_acquire arch_atomic64_inc_return_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_inc_return_release
|
|
static __always_inline s64
|
|
arch_atomic64_inc_return_release(atomic64_t *v)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic64_inc_return_relaxed(v);
|
|
}
|
|
#define arch_atomic64_inc_return_release arch_atomic64_inc_return_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_inc_return
|
|
static __always_inline s64
|
|
arch_atomic64_inc_return(atomic64_t *v)
|
|
{
|
|
s64 ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic64_inc_return_relaxed(v);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_inc_return arch_atomic64_inc_return
|
|
#endif
|
|
|
|
#endif /* arch_atomic64_inc_return_relaxed */
|
|
|
|
#ifndef arch_atomic64_fetch_inc_relaxed
|
|
#ifdef arch_atomic64_fetch_inc
|
|
#define arch_atomic64_fetch_inc_acquire arch_atomic64_fetch_inc
|
|
#define arch_atomic64_fetch_inc_release arch_atomic64_fetch_inc
|
|
#define arch_atomic64_fetch_inc_relaxed arch_atomic64_fetch_inc
|
|
#endif /* arch_atomic64_fetch_inc */
|
|
|
|
#ifndef arch_atomic64_fetch_inc
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_inc(atomic64_t *v)
|
|
{
|
|
return arch_atomic64_fetch_add(1, v);
|
|
}
|
|
#define arch_atomic64_fetch_inc arch_atomic64_fetch_inc
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_inc_acquire
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_inc_acquire(atomic64_t *v)
|
|
{
|
|
return arch_atomic64_fetch_add_acquire(1, v);
|
|
}
|
|
#define arch_atomic64_fetch_inc_acquire arch_atomic64_fetch_inc_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_inc_release
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_inc_release(atomic64_t *v)
|
|
{
|
|
return arch_atomic64_fetch_add_release(1, v);
|
|
}
|
|
#define arch_atomic64_fetch_inc_release arch_atomic64_fetch_inc_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_inc_relaxed
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_inc_relaxed(atomic64_t *v)
|
|
{
|
|
return arch_atomic64_fetch_add_relaxed(1, v);
|
|
}
|
|
#define arch_atomic64_fetch_inc_relaxed arch_atomic64_fetch_inc_relaxed
|
|
#endif
|
|
|
|
#else /* arch_atomic64_fetch_inc_relaxed */
|
|
|
|
#ifndef arch_atomic64_fetch_inc_acquire
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_inc_acquire(atomic64_t *v)
|
|
{
|
|
s64 ret = arch_atomic64_fetch_inc_relaxed(v);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_fetch_inc_acquire arch_atomic64_fetch_inc_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_inc_release
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_inc_release(atomic64_t *v)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic64_fetch_inc_relaxed(v);
|
|
}
|
|
#define arch_atomic64_fetch_inc_release arch_atomic64_fetch_inc_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_inc
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_inc(atomic64_t *v)
|
|
{
|
|
s64 ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic64_fetch_inc_relaxed(v);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_fetch_inc arch_atomic64_fetch_inc
|
|
#endif
|
|
|
|
#endif /* arch_atomic64_fetch_inc_relaxed */
|
|
|
|
#ifndef arch_atomic64_dec
|
|
static __always_inline void
|
|
arch_atomic64_dec(atomic64_t *v)
|
|
{
|
|
arch_atomic64_sub(1, v);
|
|
}
|
|
#define arch_atomic64_dec arch_atomic64_dec
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_dec_return_relaxed
|
|
#ifdef arch_atomic64_dec_return
|
|
#define arch_atomic64_dec_return_acquire arch_atomic64_dec_return
|
|
#define arch_atomic64_dec_return_release arch_atomic64_dec_return
|
|
#define arch_atomic64_dec_return_relaxed arch_atomic64_dec_return
|
|
#endif /* arch_atomic64_dec_return */
|
|
|
|
#ifndef arch_atomic64_dec_return
|
|
static __always_inline s64
|
|
arch_atomic64_dec_return(atomic64_t *v)
|
|
{
|
|
return arch_atomic64_sub_return(1, v);
|
|
}
|
|
#define arch_atomic64_dec_return arch_atomic64_dec_return
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_dec_return_acquire
|
|
static __always_inline s64
|
|
arch_atomic64_dec_return_acquire(atomic64_t *v)
|
|
{
|
|
return arch_atomic64_sub_return_acquire(1, v);
|
|
}
|
|
#define arch_atomic64_dec_return_acquire arch_atomic64_dec_return_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_dec_return_release
|
|
static __always_inline s64
|
|
arch_atomic64_dec_return_release(atomic64_t *v)
|
|
{
|
|
return arch_atomic64_sub_return_release(1, v);
|
|
}
|
|
#define arch_atomic64_dec_return_release arch_atomic64_dec_return_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_dec_return_relaxed
|
|
static __always_inline s64
|
|
arch_atomic64_dec_return_relaxed(atomic64_t *v)
|
|
{
|
|
return arch_atomic64_sub_return_relaxed(1, v);
|
|
}
|
|
#define arch_atomic64_dec_return_relaxed arch_atomic64_dec_return_relaxed
|
|
#endif
|
|
|
|
#else /* arch_atomic64_dec_return_relaxed */
|
|
|
|
#ifndef arch_atomic64_dec_return_acquire
|
|
static __always_inline s64
|
|
arch_atomic64_dec_return_acquire(atomic64_t *v)
|
|
{
|
|
s64 ret = arch_atomic64_dec_return_relaxed(v);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_dec_return_acquire arch_atomic64_dec_return_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_dec_return_release
|
|
static __always_inline s64
|
|
arch_atomic64_dec_return_release(atomic64_t *v)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic64_dec_return_relaxed(v);
|
|
}
|
|
#define arch_atomic64_dec_return_release arch_atomic64_dec_return_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_dec_return
|
|
static __always_inline s64
|
|
arch_atomic64_dec_return(atomic64_t *v)
|
|
{
|
|
s64 ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic64_dec_return_relaxed(v);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_dec_return arch_atomic64_dec_return
|
|
#endif
|
|
|
|
#endif /* arch_atomic64_dec_return_relaxed */
|
|
|
|
#ifndef arch_atomic64_fetch_dec_relaxed
|
|
#ifdef arch_atomic64_fetch_dec
|
|
#define arch_atomic64_fetch_dec_acquire arch_atomic64_fetch_dec
|
|
#define arch_atomic64_fetch_dec_release arch_atomic64_fetch_dec
|
|
#define arch_atomic64_fetch_dec_relaxed arch_atomic64_fetch_dec
|
|
#endif /* arch_atomic64_fetch_dec */
|
|
|
|
#ifndef arch_atomic64_fetch_dec
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_dec(atomic64_t *v)
|
|
{
|
|
return arch_atomic64_fetch_sub(1, v);
|
|
}
|
|
#define arch_atomic64_fetch_dec arch_atomic64_fetch_dec
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_dec_acquire
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_dec_acquire(atomic64_t *v)
|
|
{
|
|
return arch_atomic64_fetch_sub_acquire(1, v);
|
|
}
|
|
#define arch_atomic64_fetch_dec_acquire arch_atomic64_fetch_dec_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_dec_release
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_dec_release(atomic64_t *v)
|
|
{
|
|
return arch_atomic64_fetch_sub_release(1, v);
|
|
}
|
|
#define arch_atomic64_fetch_dec_release arch_atomic64_fetch_dec_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_dec_relaxed
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_dec_relaxed(atomic64_t *v)
|
|
{
|
|
return arch_atomic64_fetch_sub_relaxed(1, v);
|
|
}
|
|
#define arch_atomic64_fetch_dec_relaxed arch_atomic64_fetch_dec_relaxed
|
|
#endif
|
|
|
|
#else /* arch_atomic64_fetch_dec_relaxed */
|
|
|
|
#ifndef arch_atomic64_fetch_dec_acquire
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_dec_acquire(atomic64_t *v)
|
|
{
|
|
s64 ret = arch_atomic64_fetch_dec_relaxed(v);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_fetch_dec_acquire arch_atomic64_fetch_dec_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_dec_release
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_dec_release(atomic64_t *v)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic64_fetch_dec_relaxed(v);
|
|
}
|
|
#define arch_atomic64_fetch_dec_release arch_atomic64_fetch_dec_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_dec
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_dec(atomic64_t *v)
|
|
{
|
|
s64 ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic64_fetch_dec_relaxed(v);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_fetch_dec arch_atomic64_fetch_dec
|
|
#endif
|
|
|
|
#endif /* arch_atomic64_fetch_dec_relaxed */
|
|
|
|
#ifndef arch_atomic64_fetch_and_relaxed
|
|
#define arch_atomic64_fetch_and_acquire arch_atomic64_fetch_and
|
|
#define arch_atomic64_fetch_and_release arch_atomic64_fetch_and
|
|
#define arch_atomic64_fetch_and_relaxed arch_atomic64_fetch_and
|
|
#else /* arch_atomic64_fetch_and_relaxed */
|
|
|
|
#ifndef arch_atomic64_fetch_and_acquire
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_and_acquire(s64 i, atomic64_t *v)
|
|
{
|
|
s64 ret = arch_atomic64_fetch_and_relaxed(i, v);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_fetch_and_acquire arch_atomic64_fetch_and_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_and_release
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_and_release(s64 i, atomic64_t *v)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic64_fetch_and_relaxed(i, v);
|
|
}
|
|
#define arch_atomic64_fetch_and_release arch_atomic64_fetch_and_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_and
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_and(s64 i, atomic64_t *v)
|
|
{
|
|
s64 ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic64_fetch_and_relaxed(i, v);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_fetch_and arch_atomic64_fetch_and
|
|
#endif
|
|
|
|
#endif /* arch_atomic64_fetch_and_relaxed */
|
|
|
|
#ifndef arch_atomic64_andnot
|
|
static __always_inline void
|
|
arch_atomic64_andnot(s64 i, atomic64_t *v)
|
|
{
|
|
arch_atomic64_and(~i, v);
|
|
}
|
|
#define arch_atomic64_andnot arch_atomic64_andnot
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_andnot_relaxed
|
|
#ifdef arch_atomic64_fetch_andnot
|
|
#define arch_atomic64_fetch_andnot_acquire arch_atomic64_fetch_andnot
|
|
#define arch_atomic64_fetch_andnot_release arch_atomic64_fetch_andnot
|
|
#define arch_atomic64_fetch_andnot_relaxed arch_atomic64_fetch_andnot
|
|
#endif /* arch_atomic64_fetch_andnot */
|
|
|
|
#ifndef arch_atomic64_fetch_andnot
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_andnot(s64 i, atomic64_t *v)
|
|
{
|
|
return arch_atomic64_fetch_and(~i, v);
|
|
}
|
|
#define arch_atomic64_fetch_andnot arch_atomic64_fetch_andnot
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_andnot_acquire
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_andnot_acquire(s64 i, atomic64_t *v)
|
|
{
|
|
return arch_atomic64_fetch_and_acquire(~i, v);
|
|
}
|
|
#define arch_atomic64_fetch_andnot_acquire arch_atomic64_fetch_andnot_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_andnot_release
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_andnot_release(s64 i, atomic64_t *v)
|
|
{
|
|
return arch_atomic64_fetch_and_release(~i, v);
|
|
}
|
|
#define arch_atomic64_fetch_andnot_release arch_atomic64_fetch_andnot_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_andnot_relaxed
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_andnot_relaxed(s64 i, atomic64_t *v)
|
|
{
|
|
return arch_atomic64_fetch_and_relaxed(~i, v);
|
|
}
|
|
#define arch_atomic64_fetch_andnot_relaxed arch_atomic64_fetch_andnot_relaxed
|
|
#endif
|
|
|
|
#else /* arch_atomic64_fetch_andnot_relaxed */
|
|
|
|
#ifndef arch_atomic64_fetch_andnot_acquire
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_andnot_acquire(s64 i, atomic64_t *v)
|
|
{
|
|
s64 ret = arch_atomic64_fetch_andnot_relaxed(i, v);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_fetch_andnot_acquire arch_atomic64_fetch_andnot_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_andnot_release
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_andnot_release(s64 i, atomic64_t *v)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic64_fetch_andnot_relaxed(i, v);
|
|
}
|
|
#define arch_atomic64_fetch_andnot_release arch_atomic64_fetch_andnot_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_andnot
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_andnot(s64 i, atomic64_t *v)
|
|
{
|
|
s64 ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic64_fetch_andnot_relaxed(i, v);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_fetch_andnot arch_atomic64_fetch_andnot
|
|
#endif
|
|
|
|
#endif /* arch_atomic64_fetch_andnot_relaxed */
|
|
|
|
#ifndef arch_atomic64_fetch_or_relaxed
|
|
#define arch_atomic64_fetch_or_acquire arch_atomic64_fetch_or
|
|
#define arch_atomic64_fetch_or_release arch_atomic64_fetch_or
|
|
#define arch_atomic64_fetch_or_relaxed arch_atomic64_fetch_or
|
|
#else /* arch_atomic64_fetch_or_relaxed */
|
|
|
|
#ifndef arch_atomic64_fetch_or_acquire
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_or_acquire(s64 i, atomic64_t *v)
|
|
{
|
|
s64 ret = arch_atomic64_fetch_or_relaxed(i, v);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_fetch_or_acquire arch_atomic64_fetch_or_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_or_release
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_or_release(s64 i, atomic64_t *v)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic64_fetch_or_relaxed(i, v);
|
|
}
|
|
#define arch_atomic64_fetch_or_release arch_atomic64_fetch_or_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_or
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_or(s64 i, atomic64_t *v)
|
|
{
|
|
s64 ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic64_fetch_or_relaxed(i, v);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_fetch_or arch_atomic64_fetch_or
|
|
#endif
|
|
|
|
#endif /* arch_atomic64_fetch_or_relaxed */
|
|
|
|
#ifndef arch_atomic64_fetch_xor_relaxed
|
|
#define arch_atomic64_fetch_xor_acquire arch_atomic64_fetch_xor
|
|
#define arch_atomic64_fetch_xor_release arch_atomic64_fetch_xor
|
|
#define arch_atomic64_fetch_xor_relaxed arch_atomic64_fetch_xor
|
|
#else /* arch_atomic64_fetch_xor_relaxed */
|
|
|
|
#ifndef arch_atomic64_fetch_xor_acquire
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_xor_acquire(s64 i, atomic64_t *v)
|
|
{
|
|
s64 ret = arch_atomic64_fetch_xor_relaxed(i, v);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_fetch_xor_acquire arch_atomic64_fetch_xor_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_xor_release
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_xor_release(s64 i, atomic64_t *v)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic64_fetch_xor_relaxed(i, v);
|
|
}
|
|
#define arch_atomic64_fetch_xor_release arch_atomic64_fetch_xor_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_xor
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_xor(s64 i, atomic64_t *v)
|
|
{
|
|
s64 ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic64_fetch_xor_relaxed(i, v);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_fetch_xor arch_atomic64_fetch_xor
|
|
#endif
|
|
|
|
#endif /* arch_atomic64_fetch_xor_relaxed */
|
|
|
|
#ifndef arch_atomic64_xchg_relaxed
|
|
#define arch_atomic64_xchg_acquire arch_atomic64_xchg
|
|
#define arch_atomic64_xchg_release arch_atomic64_xchg
|
|
#define arch_atomic64_xchg_relaxed arch_atomic64_xchg
|
|
#else /* arch_atomic64_xchg_relaxed */
|
|
|
|
#ifndef arch_atomic64_xchg_acquire
|
|
static __always_inline s64
|
|
arch_atomic64_xchg_acquire(atomic64_t *v, s64 i)
|
|
{
|
|
s64 ret = arch_atomic64_xchg_relaxed(v, i);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_xchg_acquire arch_atomic64_xchg_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_xchg_release
|
|
static __always_inline s64
|
|
arch_atomic64_xchg_release(atomic64_t *v, s64 i)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic64_xchg_relaxed(v, i);
|
|
}
|
|
#define arch_atomic64_xchg_release arch_atomic64_xchg_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_xchg
|
|
static __always_inline s64
|
|
arch_atomic64_xchg(atomic64_t *v, s64 i)
|
|
{
|
|
s64 ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic64_xchg_relaxed(v, i);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_xchg arch_atomic64_xchg
|
|
#endif
|
|
|
|
#endif /* arch_atomic64_xchg_relaxed */
|
|
|
|
#ifndef arch_atomic64_cmpxchg_relaxed
|
|
#define arch_atomic64_cmpxchg_acquire arch_atomic64_cmpxchg
|
|
#define arch_atomic64_cmpxchg_release arch_atomic64_cmpxchg
|
|
#define arch_atomic64_cmpxchg_relaxed arch_atomic64_cmpxchg
|
|
#else /* arch_atomic64_cmpxchg_relaxed */
|
|
|
|
#ifndef arch_atomic64_cmpxchg_acquire
|
|
static __always_inline s64
|
|
arch_atomic64_cmpxchg_acquire(atomic64_t *v, s64 old, s64 new)
|
|
{
|
|
s64 ret = arch_atomic64_cmpxchg_relaxed(v, old, new);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_cmpxchg_acquire arch_atomic64_cmpxchg_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_cmpxchg_release
|
|
static __always_inline s64
|
|
arch_atomic64_cmpxchg_release(atomic64_t *v, s64 old, s64 new)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic64_cmpxchg_relaxed(v, old, new);
|
|
}
|
|
#define arch_atomic64_cmpxchg_release arch_atomic64_cmpxchg_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_cmpxchg
|
|
static __always_inline s64
|
|
arch_atomic64_cmpxchg(atomic64_t *v, s64 old, s64 new)
|
|
{
|
|
s64 ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic64_cmpxchg_relaxed(v, old, new);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_cmpxchg arch_atomic64_cmpxchg
|
|
#endif
|
|
|
|
#endif /* arch_atomic64_cmpxchg_relaxed */
|
|
|
|
#ifndef arch_atomic64_try_cmpxchg_relaxed
|
|
#ifdef arch_atomic64_try_cmpxchg
|
|
#define arch_atomic64_try_cmpxchg_acquire arch_atomic64_try_cmpxchg
|
|
#define arch_atomic64_try_cmpxchg_release arch_atomic64_try_cmpxchg
|
|
#define arch_atomic64_try_cmpxchg_relaxed arch_atomic64_try_cmpxchg
|
|
#endif /* arch_atomic64_try_cmpxchg */
|
|
|
|
#ifndef arch_atomic64_try_cmpxchg
|
|
static __always_inline bool
|
|
arch_atomic64_try_cmpxchg(atomic64_t *v, s64 *old, s64 new)
|
|
{
|
|
s64 r, o = *old;
|
|
r = arch_atomic64_cmpxchg(v, o, new);
|
|
if (unlikely(r != o))
|
|
*old = r;
|
|
return likely(r == o);
|
|
}
|
|
#define arch_atomic64_try_cmpxchg arch_atomic64_try_cmpxchg
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_try_cmpxchg_acquire
|
|
static __always_inline bool
|
|
arch_atomic64_try_cmpxchg_acquire(atomic64_t *v, s64 *old, s64 new)
|
|
{
|
|
s64 r, o = *old;
|
|
r = arch_atomic64_cmpxchg_acquire(v, o, new);
|
|
if (unlikely(r != o))
|
|
*old = r;
|
|
return likely(r == o);
|
|
}
|
|
#define arch_atomic64_try_cmpxchg_acquire arch_atomic64_try_cmpxchg_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_try_cmpxchg_release
|
|
static __always_inline bool
|
|
arch_atomic64_try_cmpxchg_release(atomic64_t *v, s64 *old, s64 new)
|
|
{
|
|
s64 r, o = *old;
|
|
r = arch_atomic64_cmpxchg_release(v, o, new);
|
|
if (unlikely(r != o))
|
|
*old = r;
|
|
return likely(r == o);
|
|
}
|
|
#define arch_atomic64_try_cmpxchg_release arch_atomic64_try_cmpxchg_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_try_cmpxchg_relaxed
|
|
static __always_inline bool
|
|
arch_atomic64_try_cmpxchg_relaxed(atomic64_t *v, s64 *old, s64 new)
|
|
{
|
|
s64 r, o = *old;
|
|
r = arch_atomic64_cmpxchg_relaxed(v, o, new);
|
|
if (unlikely(r != o))
|
|
*old = r;
|
|
return likely(r == o);
|
|
}
|
|
#define arch_atomic64_try_cmpxchg_relaxed arch_atomic64_try_cmpxchg_relaxed
|
|
#endif
|
|
|
|
#else /* arch_atomic64_try_cmpxchg_relaxed */
|
|
|
|
#ifndef arch_atomic64_try_cmpxchg_acquire
|
|
static __always_inline bool
|
|
arch_atomic64_try_cmpxchg_acquire(atomic64_t *v, s64 *old, s64 new)
|
|
{
|
|
bool ret = arch_atomic64_try_cmpxchg_relaxed(v, old, new);
|
|
__atomic_acquire_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_try_cmpxchg_acquire arch_atomic64_try_cmpxchg_acquire
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_try_cmpxchg_release
|
|
static __always_inline bool
|
|
arch_atomic64_try_cmpxchg_release(atomic64_t *v, s64 *old, s64 new)
|
|
{
|
|
__atomic_release_fence();
|
|
return arch_atomic64_try_cmpxchg_relaxed(v, old, new);
|
|
}
|
|
#define arch_atomic64_try_cmpxchg_release arch_atomic64_try_cmpxchg_release
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_try_cmpxchg
|
|
static __always_inline bool
|
|
arch_atomic64_try_cmpxchg(atomic64_t *v, s64 *old, s64 new)
|
|
{
|
|
bool ret;
|
|
__atomic_pre_full_fence();
|
|
ret = arch_atomic64_try_cmpxchg_relaxed(v, old, new);
|
|
__atomic_post_full_fence();
|
|
return ret;
|
|
}
|
|
#define arch_atomic64_try_cmpxchg arch_atomic64_try_cmpxchg
|
|
#endif
|
|
|
|
#endif /* arch_atomic64_try_cmpxchg_relaxed */
|
|
|
|
#ifndef arch_atomic64_sub_and_test
|
|
/**
|
|
* arch_atomic64_sub_and_test - subtract value from variable and test result
|
|
* @i: integer value to subtract
|
|
* @v: pointer of type atomic64_t
|
|
*
|
|
* Atomically subtracts @i from @v and returns
|
|
* true if the result is zero, or false for all
|
|
* other cases.
|
|
*/
|
|
static __always_inline bool
|
|
arch_atomic64_sub_and_test(s64 i, atomic64_t *v)
|
|
{
|
|
return arch_atomic64_sub_return(i, v) == 0;
|
|
}
|
|
#define arch_atomic64_sub_and_test arch_atomic64_sub_and_test
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_dec_and_test
|
|
/**
|
|
* arch_atomic64_dec_and_test - decrement and test
|
|
* @v: pointer of type atomic64_t
|
|
*
|
|
* Atomically decrements @v by 1 and
|
|
* returns true if the result is 0, or false for all other
|
|
* cases.
|
|
*/
|
|
static __always_inline bool
|
|
arch_atomic64_dec_and_test(atomic64_t *v)
|
|
{
|
|
return arch_atomic64_dec_return(v) == 0;
|
|
}
|
|
#define arch_atomic64_dec_and_test arch_atomic64_dec_and_test
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_inc_and_test
|
|
/**
|
|
* arch_atomic64_inc_and_test - increment and test
|
|
* @v: pointer of type atomic64_t
|
|
*
|
|
* Atomically increments @v by 1
|
|
* and returns true if the result is zero, or false for all
|
|
* other cases.
|
|
*/
|
|
static __always_inline bool
|
|
arch_atomic64_inc_and_test(atomic64_t *v)
|
|
{
|
|
return arch_atomic64_inc_return(v) == 0;
|
|
}
|
|
#define arch_atomic64_inc_and_test arch_atomic64_inc_and_test
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_add_negative
|
|
/**
|
|
* arch_atomic64_add_negative - add and test if negative
|
|
* @i: integer value to add
|
|
* @v: pointer of type atomic64_t
|
|
*
|
|
* Atomically adds @i to @v and returns true
|
|
* if the result is negative, or false when
|
|
* result is greater than or equal to zero.
|
|
*/
|
|
static __always_inline bool
|
|
arch_atomic64_add_negative(s64 i, atomic64_t *v)
|
|
{
|
|
return arch_atomic64_add_return(i, v) < 0;
|
|
}
|
|
#define arch_atomic64_add_negative arch_atomic64_add_negative
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_fetch_add_unless
|
|
/**
|
|
* arch_atomic64_fetch_add_unless - add unless the number is already a given value
|
|
* @v: pointer of type atomic64_t
|
|
* @a: the amount to add to v...
|
|
* @u: ...unless v is equal to u.
|
|
*
|
|
* Atomically adds @a to @v, so long as @v was not already @u.
|
|
* Returns original value of @v
|
|
*/
|
|
static __always_inline s64
|
|
arch_atomic64_fetch_add_unless(atomic64_t *v, s64 a, s64 u)
|
|
{
|
|
s64 c = arch_atomic64_read(v);
|
|
|
|
do {
|
|
if (unlikely(c == u))
|
|
break;
|
|
} while (!arch_atomic64_try_cmpxchg(v, &c, c + a));
|
|
|
|
return c;
|
|
}
|
|
#define arch_atomic64_fetch_add_unless arch_atomic64_fetch_add_unless
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_add_unless
|
|
/**
|
|
* arch_atomic64_add_unless - add unless the number is already a given value
|
|
* @v: pointer of type atomic64_t
|
|
* @a: the amount to add to v...
|
|
* @u: ...unless v is equal to u.
|
|
*
|
|
* Atomically adds @a to @v, if @v was not already @u.
|
|
* Returns true if the addition was done.
|
|
*/
|
|
static __always_inline bool
|
|
arch_atomic64_add_unless(atomic64_t *v, s64 a, s64 u)
|
|
{
|
|
return arch_atomic64_fetch_add_unless(v, a, u) != u;
|
|
}
|
|
#define arch_atomic64_add_unless arch_atomic64_add_unless
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_inc_not_zero
|
|
/**
|
|
* arch_atomic64_inc_not_zero - increment unless the number is zero
|
|
* @v: pointer of type atomic64_t
|
|
*
|
|
* Atomically increments @v by 1, if @v is non-zero.
|
|
* Returns true if the increment was done.
|
|
*/
|
|
static __always_inline bool
|
|
arch_atomic64_inc_not_zero(atomic64_t *v)
|
|
{
|
|
return arch_atomic64_add_unless(v, 1, 0);
|
|
}
|
|
#define arch_atomic64_inc_not_zero arch_atomic64_inc_not_zero
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_inc_unless_negative
|
|
static __always_inline bool
|
|
arch_atomic64_inc_unless_negative(atomic64_t *v)
|
|
{
|
|
s64 c = arch_atomic64_read(v);
|
|
|
|
do {
|
|
if (unlikely(c < 0))
|
|
return false;
|
|
} while (!arch_atomic64_try_cmpxchg(v, &c, c + 1));
|
|
|
|
return true;
|
|
}
|
|
#define arch_atomic64_inc_unless_negative arch_atomic64_inc_unless_negative
|
|
#endif
|
|
|
|
#ifndef arch_atomic64_dec_unless_positive
|
|
static __always_inline bool
|
|
arch_atomic64_dec_unless_positive(atomic64_t *v)
|
|
{
|
|
s64 c = arch_atomic64_read(v);
|
|
|
|
do {
|
|
if (unlikely(c > 0))
|
|
return false;
|
|
} while (!arch_atomic64_try_cmpxchg(v, &c, c - 1));
|
|
|
|
return true;
|
|
}
|
|
#define arch_atomic64_dec_unless_positive arch_atomic64_dec_unless_positive
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#endif
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#ifndef arch_atomic64_dec_if_positive
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static __always_inline s64
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arch_atomic64_dec_if_positive(atomic64_t *v)
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{
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s64 dec, c = arch_atomic64_read(v);
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do {
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dec = c - 1;
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if (unlikely(dec < 0))
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break;
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} while (!arch_atomic64_try_cmpxchg(v, &c, dec));
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return dec;
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}
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#define arch_atomic64_dec_if_positive arch_atomic64_dec_if_positive
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#endif
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#endif /* _LINUX_ATOMIC_FALLBACK_H */
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// b5e87bdd5ede61470c29f7a7e4de781af3770f09
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