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    Subject[PATCHv4 08/12] atomics: switch to generated fallbacks
    Date
    As a step to ensuring the atomic* APIs are consistent, switch to fallbacks
    generated by gen-atomic-fallback.sh.

    These are checked in rather than generated with Kbuild, since:

    * This allows inspection of the atomics with git grep and ctags on a
    pristine tree, which Linus strongly prefers being able to do.

    * The fallbacks are not affected by machine details or configuration
    options, so it is not necessary to regenerate them to take these into
    account.

    * These are included by files required *very* early in the build process
    (e.g. for generating bounds.h), and we'd rather not complicate the
    top-level Kbuild file with dependencies.

    The new fallback header should be equivalent to the old fallbacks in
    <linux/atomic.h>, but:

    * It is formatted a little differently due to scripting ensuring things
    are more regular than they used to be.

    * Fallbacks are now expanded in-place as static inline functions rather
    than macros.

    * The prototypes for fallbacks are arragned consistently with the return
    type on a separate line to try to keep to a sensible line length.

    There should be no functional change as a result of this patch.

    Signed-off-by: Mark Rutland <mark.rutland@arm.com>
    Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
    Acked-by: Will Deacon <will.deacon@arm.com>
    Cc: Boqun Feng <boqun.feng@gmail.com>
    Cc: Ingo Molnar <mingo@kernel.org>
    ---
    include/linux/atomic-fallback.h | 2294 +++++++++++++++++++++++++++++++++++++++
    include/linux/atomic.h | 1241 +--------------------
    2 files changed, 2295 insertions(+), 1240 deletions(-)
    create mode 100644 include/linux/atomic-fallback.h

    diff --git a/include/linux/atomic-fallback.h b/include/linux/atomic-fallback.h
    new file mode 100644
    index 000000000000..1c02c0112fbb
    --- /dev/null
    +++ b/include/linux/atomic-fallback.h
    @@ -0,0 +1,2294 @@
    +// SPDX-License-Identifier: GPL-2.0
    +
    +// Generated by scripts/atomic/gen-atomic-fallback.sh
    +// DO NOT MODIFY THIS FILE DIRECTLY
    +
    +#ifndef _LINUX_ATOMIC_FALLBACK_H
    +#define _LINUX_ATOMIC_FALLBACK_H
    +
    +#ifndef xchg_relaxed
    +#define xchg_relaxed xchg
    +#define xchg_acquire xchg
    +#define xchg_release xchg
    +#else /* xchg_relaxed */
    +
    +#ifndef xchg_acquire
    +#define xchg_acquire(...) \
    + __atomic_op_acquire(xchg, __VA_ARGS__)
    +#endif
    +
    +#ifndef xchg_release
    +#define xchg_release(...) \
    + __atomic_op_release(xchg, __VA_ARGS__)
    +#endif
    +
    +#ifndef xchg
    +#define xchg(...) \
    + __atomic_op_fence(xchg, __VA_ARGS__)
    +#endif
    +
    +#endif /* xchg_relaxed */
    +
    +#ifndef cmpxchg_relaxed
    +#define cmpxchg_relaxed cmpxchg
    +#define cmpxchg_acquire cmpxchg
    +#define cmpxchg_release cmpxchg
    +#else /* cmpxchg_relaxed */
    +
    +#ifndef cmpxchg_acquire
    +#define cmpxchg_acquire(...) \
    + __atomic_op_acquire(cmpxchg, __VA_ARGS__)
    +#endif
    +
    +#ifndef cmpxchg_release
    +#define cmpxchg_release(...) \
    + __atomic_op_release(cmpxchg, __VA_ARGS__)
    +#endif
    +
    +#ifndef cmpxchg
    +#define cmpxchg(...) \
    + __atomic_op_fence(cmpxchg, __VA_ARGS__)
    +#endif
    +
    +#endif /* cmpxchg_relaxed */
    +
    +#ifndef cmpxchg64_relaxed
    +#define cmpxchg64_relaxed cmpxchg64
    +#define cmpxchg64_acquire cmpxchg64
    +#define cmpxchg64_release cmpxchg64
    +#else /* cmpxchg64_relaxed */
    +
    +#ifndef cmpxchg64_acquire
    +#define cmpxchg64_acquire(...) \
    + __atomic_op_acquire(cmpxchg64, __VA_ARGS__)
    +#endif
    +
    +#ifndef cmpxchg64_release
    +#define cmpxchg64_release(...) \
    + __atomic_op_release(cmpxchg64, __VA_ARGS__)
    +#endif
    +
    +#ifndef cmpxchg64
    +#define cmpxchg64(...) \
    + __atomic_op_fence(cmpxchg64, __VA_ARGS__)
    +#endif
    +
    +#endif /* cmpxchg64_relaxed */
    +
    +#ifndef atomic_read_acquire
    +static inline int
    +atomic_read_acquire(const atomic_t *v)
    +{
    + return smp_load_acquire(&(v)->counter);
    +}
    +#define atomic_read_acquire atomic_read_acquire
    +#endif
    +
    +#ifndef atomic_set_release
    +static inline void
    +atomic_set_release(atomic_t *v, int i)
    +{
    + smp_store_release(&(v)->counter, i);
    +}
    +#define atomic_set_release atomic_set_release
    +#endif
    +
    +#ifndef atomic_add_return_relaxed
    +#define atomic_add_return_acquire atomic_add_return
    +#define atomic_add_return_release atomic_add_return
    +#define atomic_add_return_relaxed atomic_add_return
    +#else /* atomic_add_return_relaxed */
    +
    +#ifndef atomic_add_return_acquire
    +static inline int
    +atomic_add_return_acquire(int i, atomic_t *v)
    +{
    + int ret = atomic_add_return_relaxed(i, v);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic_add_return_acquire atomic_add_return_acquire
    +#endif
    +
    +#ifndef atomic_add_return_release
    +static inline int
    +atomic_add_return_release(int i, atomic_t *v)
    +{
    + __atomic_release_fence();
    + return atomic_add_return_relaxed(i, v);
    +}
    +#define atomic_add_return_release atomic_add_return_release
    +#endif
    +
    +#ifndef atomic_add_return
    +static inline int
    +atomic_add_return(int i, atomic_t *v)
    +{
    + int ret;
    + __atomic_pre_full_fence();
    + ret = atomic_add_return_relaxed(i, v);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic_add_return atomic_add_return
    +#endif
    +
    +#endif /* atomic_add_return_relaxed */
    +
    +#ifndef atomic_fetch_add_relaxed
    +#define atomic_fetch_add_acquire atomic_fetch_add
    +#define atomic_fetch_add_release atomic_fetch_add
    +#define atomic_fetch_add_relaxed atomic_fetch_add
    +#else /* atomic_fetch_add_relaxed */
    +
    +#ifndef atomic_fetch_add_acquire
    +static inline int
    +atomic_fetch_add_acquire(int i, atomic_t *v)
    +{
    + int ret = atomic_fetch_add_relaxed(i, v);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic_fetch_add_acquire atomic_fetch_add_acquire
    +#endif
    +
    +#ifndef atomic_fetch_add_release
    +static inline int
    +atomic_fetch_add_release(int i, atomic_t *v)
    +{
    + __atomic_release_fence();
    + return atomic_fetch_add_relaxed(i, v);
    +}
    +#define atomic_fetch_add_release atomic_fetch_add_release
    +#endif
    +
    +#ifndef atomic_fetch_add
    +static inline int
    +atomic_fetch_add(int i, atomic_t *v)
    +{
    + int ret;
    + __atomic_pre_full_fence();
    + ret = atomic_fetch_add_relaxed(i, v);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic_fetch_add atomic_fetch_add
    +#endif
    +
    +#endif /* atomic_fetch_add_relaxed */
    +
    +#ifndef atomic_sub_return_relaxed
    +#define atomic_sub_return_acquire atomic_sub_return
    +#define atomic_sub_return_release atomic_sub_return
    +#define atomic_sub_return_relaxed atomic_sub_return
    +#else /* atomic_sub_return_relaxed */
    +
    +#ifndef atomic_sub_return_acquire
    +static inline int
    +atomic_sub_return_acquire(int i, atomic_t *v)
    +{
    + int ret = atomic_sub_return_relaxed(i, v);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic_sub_return_acquire atomic_sub_return_acquire
    +#endif
    +
    +#ifndef atomic_sub_return_release
    +static inline int
    +atomic_sub_return_release(int i, atomic_t *v)
    +{
    + __atomic_release_fence();
    + return atomic_sub_return_relaxed(i, v);
    +}
    +#define atomic_sub_return_release atomic_sub_return_release
    +#endif
    +
    +#ifndef atomic_sub_return
    +static inline int
    +atomic_sub_return(int i, atomic_t *v)
    +{
    + int ret;
    + __atomic_pre_full_fence();
    + ret = atomic_sub_return_relaxed(i, v);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic_sub_return atomic_sub_return
    +#endif
    +
    +#endif /* atomic_sub_return_relaxed */
    +
    +#ifndef atomic_fetch_sub_relaxed
    +#define atomic_fetch_sub_acquire atomic_fetch_sub
    +#define atomic_fetch_sub_release atomic_fetch_sub
    +#define atomic_fetch_sub_relaxed atomic_fetch_sub
    +#else /* atomic_fetch_sub_relaxed */
    +
    +#ifndef atomic_fetch_sub_acquire
    +static inline int
    +atomic_fetch_sub_acquire(int i, atomic_t *v)
    +{
    + int ret = atomic_fetch_sub_relaxed(i, v);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic_fetch_sub_acquire atomic_fetch_sub_acquire
    +#endif
    +
    +#ifndef atomic_fetch_sub_release
    +static inline int
    +atomic_fetch_sub_release(int i, atomic_t *v)
    +{
    + __atomic_release_fence();
    + return atomic_fetch_sub_relaxed(i, v);
    +}
    +#define atomic_fetch_sub_release atomic_fetch_sub_release
    +#endif
    +
    +#ifndef atomic_fetch_sub
    +static inline int
    +atomic_fetch_sub(int i, atomic_t *v)
    +{
    + int ret;
    + __atomic_pre_full_fence();
    + ret = atomic_fetch_sub_relaxed(i, v);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic_fetch_sub atomic_fetch_sub
    +#endif
    +
    +#endif /* atomic_fetch_sub_relaxed */
    +
    +#ifndef atomic_inc
    +static inline void
    +atomic_inc(atomic_t *v)
    +{
    + atomic_add(1, v);
    +}
    +#define atomic_inc atomic_inc
    +#endif
    +
    +#ifndef atomic_inc_return_relaxed
    +#ifdef atomic_inc_return
    +#define atomic_inc_return_acquire atomic_inc_return
    +#define atomic_inc_return_release atomic_inc_return
    +#define atomic_inc_return_relaxed atomic_inc_return
    +#endif /* atomic_inc_return */
    +
    +#ifndef atomic_inc_return
    +static inline int
    +atomic_inc_return(atomic_t *v)
    +{
    + return atomic_add_return(1, v);
    +}
    +#define atomic_inc_return atomic_inc_return
    +#endif
    +
    +#ifndef atomic_inc_return_acquire
    +static inline int
    +atomic_inc_return_acquire(atomic_t *v)
    +{
    + return atomic_add_return_acquire(1, v);
    +}
    +#define atomic_inc_return_acquire atomic_inc_return_acquire
    +#endif
    +
    +#ifndef atomic_inc_return_release
    +static inline int
    +atomic_inc_return_release(atomic_t *v)
    +{
    + return atomic_add_return_release(1, v);
    +}
    +#define atomic_inc_return_release atomic_inc_return_release
    +#endif
    +
    +#ifndef atomic_inc_return_relaxed
    +static inline int
    +atomic_inc_return_relaxed(atomic_t *v)
    +{
    + return atomic_add_return_relaxed(1, v);
    +}
    +#define atomic_inc_return_relaxed atomic_inc_return_relaxed
    +#endif
    +
    +#else /* atomic_inc_return_relaxed */
    +
    +#ifndef atomic_inc_return_acquire
    +static inline int
    +atomic_inc_return_acquire(atomic_t *v)
    +{
    + int ret = atomic_inc_return_relaxed(v);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic_inc_return_acquire atomic_inc_return_acquire
    +#endif
    +
    +#ifndef atomic_inc_return_release
    +static inline int
    +atomic_inc_return_release(atomic_t *v)
    +{
    + __atomic_release_fence();
    + return atomic_inc_return_relaxed(v);
    +}
    +#define atomic_inc_return_release atomic_inc_return_release
    +#endif
    +
    +#ifndef atomic_inc_return
    +static inline int
    +atomic_inc_return(atomic_t *v)
    +{
    + int ret;
    + __atomic_pre_full_fence();
    + ret = atomic_inc_return_relaxed(v);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic_inc_return atomic_inc_return
    +#endif
    +
    +#endif /* atomic_inc_return_relaxed */
    +
    +#ifndef atomic_fetch_inc_relaxed
    +#ifdef atomic_fetch_inc
    +#define atomic_fetch_inc_acquire atomic_fetch_inc
    +#define atomic_fetch_inc_release atomic_fetch_inc
    +#define atomic_fetch_inc_relaxed atomic_fetch_inc
    +#endif /* atomic_fetch_inc */
    +
    +#ifndef atomic_fetch_inc
    +static inline int
    +atomic_fetch_inc(atomic_t *v)
    +{
    + return atomic_fetch_add(1, v);
    +}
    +#define atomic_fetch_inc atomic_fetch_inc
    +#endif
    +
    +#ifndef atomic_fetch_inc_acquire
    +static inline int
    +atomic_fetch_inc_acquire(atomic_t *v)
    +{
    + return atomic_fetch_add_acquire(1, v);
    +}
    +#define atomic_fetch_inc_acquire atomic_fetch_inc_acquire
    +#endif
    +
    +#ifndef atomic_fetch_inc_release
    +static inline int
    +atomic_fetch_inc_release(atomic_t *v)
    +{
    + return atomic_fetch_add_release(1, v);
    +}
    +#define atomic_fetch_inc_release atomic_fetch_inc_release
    +#endif
    +
    +#ifndef atomic_fetch_inc_relaxed
    +static inline int
    +atomic_fetch_inc_relaxed(atomic_t *v)
    +{
    + return atomic_fetch_add_relaxed(1, v);
    +}
    +#define atomic_fetch_inc_relaxed atomic_fetch_inc_relaxed
    +#endif
    +
    +#else /* atomic_fetch_inc_relaxed */
    +
    +#ifndef atomic_fetch_inc_acquire
    +static inline int
    +atomic_fetch_inc_acquire(atomic_t *v)
    +{
    + int ret = atomic_fetch_inc_relaxed(v);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic_fetch_inc_acquire atomic_fetch_inc_acquire
    +#endif
    +
    +#ifndef atomic_fetch_inc_release
    +static inline int
    +atomic_fetch_inc_release(atomic_t *v)
    +{
    + __atomic_release_fence();
    + return atomic_fetch_inc_relaxed(v);
    +}
    +#define atomic_fetch_inc_release atomic_fetch_inc_release
    +#endif
    +
    +#ifndef atomic_fetch_inc
    +static inline int
    +atomic_fetch_inc(atomic_t *v)
    +{
    + int ret;
    + __atomic_pre_full_fence();
    + ret = atomic_fetch_inc_relaxed(v);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic_fetch_inc atomic_fetch_inc
    +#endif
    +
    +#endif /* atomic_fetch_inc_relaxed */
    +
    +#ifndef atomic_dec
    +static inline void
    +atomic_dec(atomic_t *v)
    +{
    + atomic_sub(1, v);
    +}
    +#define atomic_dec atomic_dec
    +#endif
    +
    +#ifndef atomic_dec_return_relaxed
    +#ifdef atomic_dec_return
    +#define atomic_dec_return_acquire atomic_dec_return
    +#define atomic_dec_return_release atomic_dec_return
    +#define atomic_dec_return_relaxed atomic_dec_return
    +#endif /* atomic_dec_return */
    +
    +#ifndef atomic_dec_return
    +static inline int
    +atomic_dec_return(atomic_t *v)
    +{
    + return atomic_sub_return(1, v);
    +}
    +#define atomic_dec_return atomic_dec_return
    +#endif
    +
    +#ifndef atomic_dec_return_acquire
    +static inline int
    +atomic_dec_return_acquire(atomic_t *v)
    +{
    + return atomic_sub_return_acquire(1, v);
    +}
    +#define atomic_dec_return_acquire atomic_dec_return_acquire
    +#endif
    +
    +#ifndef atomic_dec_return_release
    +static inline int
    +atomic_dec_return_release(atomic_t *v)
    +{
    + return atomic_sub_return_release(1, v);
    +}
    +#define atomic_dec_return_release atomic_dec_return_release
    +#endif
    +
    +#ifndef atomic_dec_return_relaxed
    +static inline int
    +atomic_dec_return_relaxed(atomic_t *v)
    +{
    + return atomic_sub_return_relaxed(1, v);
    +}
    +#define atomic_dec_return_relaxed atomic_dec_return_relaxed
    +#endif
    +
    +#else /* atomic_dec_return_relaxed */
    +
    +#ifndef atomic_dec_return_acquire
    +static inline int
    +atomic_dec_return_acquire(atomic_t *v)
    +{
    + int ret = atomic_dec_return_relaxed(v);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic_dec_return_acquire atomic_dec_return_acquire
    +#endif
    +
    +#ifndef atomic_dec_return_release
    +static inline int
    +atomic_dec_return_release(atomic_t *v)
    +{
    + __atomic_release_fence();
    + return atomic_dec_return_relaxed(v);
    +}
    +#define atomic_dec_return_release atomic_dec_return_release
    +#endif
    +
    +#ifndef atomic_dec_return
    +static inline int
    +atomic_dec_return(atomic_t *v)
    +{
    + int ret;
    + __atomic_pre_full_fence();
    + ret = atomic_dec_return_relaxed(v);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic_dec_return atomic_dec_return
    +#endif
    +
    +#endif /* atomic_dec_return_relaxed */
    +
    +#ifndef atomic_fetch_dec_relaxed
    +#ifdef atomic_fetch_dec
    +#define atomic_fetch_dec_acquire atomic_fetch_dec
    +#define atomic_fetch_dec_release atomic_fetch_dec
    +#define atomic_fetch_dec_relaxed atomic_fetch_dec
    +#endif /* atomic_fetch_dec */
    +
    +#ifndef atomic_fetch_dec
    +static inline int
    +atomic_fetch_dec(atomic_t *v)
    +{
    + return atomic_fetch_sub(1, v);
    +}
    +#define atomic_fetch_dec atomic_fetch_dec
    +#endif
    +
    +#ifndef atomic_fetch_dec_acquire
    +static inline int
    +atomic_fetch_dec_acquire(atomic_t *v)
    +{
    + return atomic_fetch_sub_acquire(1, v);
    +}
    +#define atomic_fetch_dec_acquire atomic_fetch_dec_acquire
    +#endif
    +
    +#ifndef atomic_fetch_dec_release
    +static inline int
    +atomic_fetch_dec_release(atomic_t *v)
    +{
    + return atomic_fetch_sub_release(1, v);
    +}
    +#define atomic_fetch_dec_release atomic_fetch_dec_release
    +#endif
    +
    +#ifndef atomic_fetch_dec_relaxed
    +static inline int
    +atomic_fetch_dec_relaxed(atomic_t *v)
    +{
    + return atomic_fetch_sub_relaxed(1, v);
    +}
    +#define atomic_fetch_dec_relaxed atomic_fetch_dec_relaxed
    +#endif
    +
    +#else /* atomic_fetch_dec_relaxed */
    +
    +#ifndef atomic_fetch_dec_acquire
    +static inline int
    +atomic_fetch_dec_acquire(atomic_t *v)
    +{
    + int ret = atomic_fetch_dec_relaxed(v);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic_fetch_dec_acquire atomic_fetch_dec_acquire
    +#endif
    +
    +#ifndef atomic_fetch_dec_release
    +static inline int
    +atomic_fetch_dec_release(atomic_t *v)
    +{
    + __atomic_release_fence();
    + return atomic_fetch_dec_relaxed(v);
    +}
    +#define atomic_fetch_dec_release atomic_fetch_dec_release
    +#endif
    +
    +#ifndef atomic_fetch_dec
    +static inline int
    +atomic_fetch_dec(atomic_t *v)
    +{
    + int ret;
    + __atomic_pre_full_fence();
    + ret = atomic_fetch_dec_relaxed(v);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic_fetch_dec atomic_fetch_dec
    +#endif
    +
    +#endif /* atomic_fetch_dec_relaxed */
    +
    +#ifndef atomic_fetch_and_relaxed
    +#define atomic_fetch_and_acquire atomic_fetch_and
    +#define atomic_fetch_and_release atomic_fetch_and
    +#define atomic_fetch_and_relaxed atomic_fetch_and
    +#else /* atomic_fetch_and_relaxed */
    +
    +#ifndef atomic_fetch_and_acquire
    +static inline int
    +atomic_fetch_and_acquire(int i, atomic_t *v)
    +{
    + int ret = atomic_fetch_and_relaxed(i, v);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic_fetch_and_acquire atomic_fetch_and_acquire
    +#endif
    +
    +#ifndef atomic_fetch_and_release
    +static inline int
    +atomic_fetch_and_release(int i, atomic_t *v)
    +{
    + __atomic_release_fence();
    + return atomic_fetch_and_relaxed(i, v);
    +}
    +#define atomic_fetch_and_release atomic_fetch_and_release
    +#endif
    +
    +#ifndef atomic_fetch_and
    +static inline int
    +atomic_fetch_and(int i, atomic_t *v)
    +{
    + int ret;
    + __atomic_pre_full_fence();
    + ret = atomic_fetch_and_relaxed(i, v);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic_fetch_and atomic_fetch_and
    +#endif
    +
    +#endif /* atomic_fetch_and_relaxed */
    +
    +#ifndef atomic_andnot
    +static inline void
    +atomic_andnot(int i, atomic_t *v)
    +{
    + atomic_and(~i, v);
    +}
    +#define atomic_andnot atomic_andnot
    +#endif
    +
    +#ifndef atomic_fetch_andnot_relaxed
    +#ifdef atomic_fetch_andnot
    +#define atomic_fetch_andnot_acquire atomic_fetch_andnot
    +#define atomic_fetch_andnot_release atomic_fetch_andnot
    +#define atomic_fetch_andnot_relaxed atomic_fetch_andnot
    +#endif /* atomic_fetch_andnot */
    +
    +#ifndef atomic_fetch_andnot
    +static inline int
    +atomic_fetch_andnot(int i, atomic_t *v)
    +{
    + return atomic_fetch_and(~i, v);
    +}
    +#define atomic_fetch_andnot atomic_fetch_andnot
    +#endif
    +
    +#ifndef atomic_fetch_andnot_acquire
    +static inline int
    +atomic_fetch_andnot_acquire(int i, atomic_t *v)
    +{
    + return atomic_fetch_and_acquire(~i, v);
    +}
    +#define atomic_fetch_andnot_acquire atomic_fetch_andnot_acquire
    +#endif
    +
    +#ifndef atomic_fetch_andnot_release
    +static inline int
    +atomic_fetch_andnot_release(int i, atomic_t *v)
    +{
    + return atomic_fetch_and_release(~i, v);
    +}
    +#define atomic_fetch_andnot_release atomic_fetch_andnot_release
    +#endif
    +
    +#ifndef atomic_fetch_andnot_relaxed
    +static inline int
    +atomic_fetch_andnot_relaxed(int i, atomic_t *v)
    +{
    + return atomic_fetch_and_relaxed(~i, v);
    +}
    +#define atomic_fetch_andnot_relaxed atomic_fetch_andnot_relaxed
    +#endif
    +
    +#else /* atomic_fetch_andnot_relaxed */
    +
    +#ifndef atomic_fetch_andnot_acquire
    +static inline int
    +atomic_fetch_andnot_acquire(int i, atomic_t *v)
    +{
    + int ret = atomic_fetch_andnot_relaxed(i, v);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic_fetch_andnot_acquire atomic_fetch_andnot_acquire
    +#endif
    +
    +#ifndef atomic_fetch_andnot_release
    +static inline int
    +atomic_fetch_andnot_release(int i, atomic_t *v)
    +{
    + __atomic_release_fence();
    + return atomic_fetch_andnot_relaxed(i, v);
    +}
    +#define atomic_fetch_andnot_release atomic_fetch_andnot_release
    +#endif
    +
    +#ifndef atomic_fetch_andnot
    +static inline int
    +atomic_fetch_andnot(int i, atomic_t *v)
    +{
    + int ret;
    + __atomic_pre_full_fence();
    + ret = atomic_fetch_andnot_relaxed(i, v);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic_fetch_andnot atomic_fetch_andnot
    +#endif
    +
    +#endif /* atomic_fetch_andnot_relaxed */
    +
    +#ifndef atomic_fetch_or_relaxed
    +#define atomic_fetch_or_acquire atomic_fetch_or
    +#define atomic_fetch_or_release atomic_fetch_or
    +#define atomic_fetch_or_relaxed atomic_fetch_or
    +#else /* atomic_fetch_or_relaxed */
    +
    +#ifndef atomic_fetch_or_acquire
    +static inline int
    +atomic_fetch_or_acquire(int i, atomic_t *v)
    +{
    + int ret = atomic_fetch_or_relaxed(i, v);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic_fetch_or_acquire atomic_fetch_or_acquire
    +#endif
    +
    +#ifndef atomic_fetch_or_release
    +static inline int
    +atomic_fetch_or_release(int i, atomic_t *v)
    +{
    + __atomic_release_fence();
    + return atomic_fetch_or_relaxed(i, v);
    +}
    +#define atomic_fetch_or_release atomic_fetch_or_release
    +#endif
    +
    +#ifndef atomic_fetch_or
    +static inline int
    +atomic_fetch_or(int i, atomic_t *v)
    +{
    + int ret;
    + __atomic_pre_full_fence();
    + ret = atomic_fetch_or_relaxed(i, v);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic_fetch_or atomic_fetch_or
    +#endif
    +
    +#endif /* atomic_fetch_or_relaxed */
    +
    +#ifndef atomic_fetch_xor_relaxed
    +#define atomic_fetch_xor_acquire atomic_fetch_xor
    +#define atomic_fetch_xor_release atomic_fetch_xor
    +#define atomic_fetch_xor_relaxed atomic_fetch_xor
    +#else /* atomic_fetch_xor_relaxed */
    +
    +#ifndef atomic_fetch_xor_acquire
    +static inline int
    +atomic_fetch_xor_acquire(int i, atomic_t *v)
    +{
    + int ret = atomic_fetch_xor_relaxed(i, v);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic_fetch_xor_acquire atomic_fetch_xor_acquire
    +#endif
    +
    +#ifndef atomic_fetch_xor_release
    +static inline int
    +atomic_fetch_xor_release(int i, atomic_t *v)
    +{
    + __atomic_release_fence();
    + return atomic_fetch_xor_relaxed(i, v);
    +}
    +#define atomic_fetch_xor_release atomic_fetch_xor_release
    +#endif
    +
    +#ifndef atomic_fetch_xor
    +static inline int
    +atomic_fetch_xor(int i, atomic_t *v)
    +{
    + int ret;
    + __atomic_pre_full_fence();
    + ret = atomic_fetch_xor_relaxed(i, v);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic_fetch_xor atomic_fetch_xor
    +#endif
    +
    +#endif /* atomic_fetch_xor_relaxed */
    +
    +#ifndef atomic_xchg_relaxed
    +#define atomic_xchg_acquire atomic_xchg
    +#define atomic_xchg_release atomic_xchg
    +#define atomic_xchg_relaxed atomic_xchg
    +#else /* atomic_xchg_relaxed */
    +
    +#ifndef atomic_xchg_acquire
    +static inline int
    +atomic_xchg_acquire(atomic_t *v, int i)
    +{
    + int ret = atomic_xchg_relaxed(v, i);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic_xchg_acquire atomic_xchg_acquire
    +#endif
    +
    +#ifndef atomic_xchg_release
    +static inline int
    +atomic_xchg_release(atomic_t *v, int i)
    +{
    + __atomic_release_fence();
    + return atomic_xchg_relaxed(v, i);
    +}
    +#define atomic_xchg_release atomic_xchg_release
    +#endif
    +
    +#ifndef atomic_xchg
    +static inline int
    +atomic_xchg(atomic_t *v, int i)
    +{
    + int ret;
    + __atomic_pre_full_fence();
    + ret = atomic_xchg_relaxed(v, i);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic_xchg atomic_xchg
    +#endif
    +
    +#endif /* atomic_xchg_relaxed */
    +
    +#ifndef atomic_cmpxchg_relaxed
    +#define atomic_cmpxchg_acquire atomic_cmpxchg
    +#define atomic_cmpxchg_release atomic_cmpxchg
    +#define atomic_cmpxchg_relaxed atomic_cmpxchg
    +#else /* atomic_cmpxchg_relaxed */
    +
    +#ifndef atomic_cmpxchg_acquire
    +static inline int
    +atomic_cmpxchg_acquire(atomic_t *v, int old, int new)
    +{
    + int ret = atomic_cmpxchg_relaxed(v, old, new);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic_cmpxchg_acquire atomic_cmpxchg_acquire
    +#endif
    +
    +#ifndef atomic_cmpxchg_release
    +static inline int
    +atomic_cmpxchg_release(atomic_t *v, int old, int new)
    +{
    + __atomic_release_fence();
    + return atomic_cmpxchg_relaxed(v, old, new);
    +}
    +#define atomic_cmpxchg_release atomic_cmpxchg_release
    +#endif
    +
    +#ifndef atomic_cmpxchg
    +static inline int
    +atomic_cmpxchg(atomic_t *v, int old, int new)
    +{
    + int ret;
    + __atomic_pre_full_fence();
    + ret = atomic_cmpxchg_relaxed(v, old, new);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic_cmpxchg atomic_cmpxchg
    +#endif
    +
    +#endif /* atomic_cmpxchg_relaxed */
    +
    +#ifndef atomic_try_cmpxchg_relaxed
    +#ifdef atomic_try_cmpxchg
    +#define atomic_try_cmpxchg_acquire atomic_try_cmpxchg
    +#define atomic_try_cmpxchg_release atomic_try_cmpxchg
    +#define atomic_try_cmpxchg_relaxed atomic_try_cmpxchg
    +#endif /* atomic_try_cmpxchg */
    +
    +#ifndef atomic_try_cmpxchg
    +static inline bool
    +atomic_try_cmpxchg(atomic_t *v, int *old, int new)
    +{
    + int r, o = *old;
    + r = atomic_cmpxchg(v, o, new);
    + if (unlikely(r != o))
    + *old = r;
    + return likely(r == o);
    +}
    +#define atomic_try_cmpxchg atomic_try_cmpxchg
    +#endif
    +
    +#ifndef atomic_try_cmpxchg_acquire
    +static inline bool
    +atomic_try_cmpxchg_acquire(atomic_t *v, int *old, int new)
    +{
    + int r, o = *old;
    + r = atomic_cmpxchg_acquire(v, o, new);
    + if (unlikely(r != o))
    + *old = r;
    + return likely(r == o);
    +}
    +#define atomic_try_cmpxchg_acquire atomic_try_cmpxchg_acquire
    +#endif
    +
    +#ifndef atomic_try_cmpxchg_release
    +static inline bool
    +atomic_try_cmpxchg_release(atomic_t *v, int *old, int new)
    +{
    + int r, o = *old;
    + r = atomic_cmpxchg_release(v, o, new);
    + if (unlikely(r != o))
    + *old = r;
    + return likely(r == o);
    +}
    +#define atomic_try_cmpxchg_release atomic_try_cmpxchg_release
    +#endif
    +
    +#ifndef atomic_try_cmpxchg_relaxed
    +static inline bool
    +atomic_try_cmpxchg_relaxed(atomic_t *v, int *old, int new)
    +{
    + int r, o = *old;
    + r = atomic_cmpxchg_relaxed(v, o, new);
    + if (unlikely(r != o))
    + *old = r;
    + return likely(r == o);
    +}
    +#define atomic_try_cmpxchg_relaxed atomic_try_cmpxchg_relaxed
    +#endif
    +
    +#else /* atomic_try_cmpxchg_relaxed */
    +
    +#ifndef atomic_try_cmpxchg_acquire
    +static inline bool
    +atomic_try_cmpxchg_acquire(atomic_t *v, int *old, int new)
    +{
    + bool ret = atomic_try_cmpxchg_relaxed(v, old, new);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic_try_cmpxchg_acquire atomic_try_cmpxchg_acquire
    +#endif
    +
    +#ifndef atomic_try_cmpxchg_release
    +static inline bool
    +atomic_try_cmpxchg_release(atomic_t *v, int *old, int new)
    +{
    + __atomic_release_fence();
    + return atomic_try_cmpxchg_relaxed(v, old, new);
    +}
    +#define atomic_try_cmpxchg_release atomic_try_cmpxchg_release
    +#endif
    +
    +#ifndef atomic_try_cmpxchg
    +static inline bool
    +atomic_try_cmpxchg(atomic_t *v, int *old, int new)
    +{
    + bool ret;
    + __atomic_pre_full_fence();
    + ret = atomic_try_cmpxchg_relaxed(v, old, new);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic_try_cmpxchg atomic_try_cmpxchg
    +#endif
    +
    +#endif /* atomic_try_cmpxchg_relaxed */
    +
    +#ifndef atomic_sub_and_test
    +/**
    + * 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 inline bool
    +atomic_sub_and_test(int i, atomic_t *v)
    +{
    + return atomic_sub_return(i, v) == 0;
    +}
    +#define atomic_sub_and_test atomic_sub_and_test
    +#endif
    +
    +#ifndef atomic_dec_and_test
    +/**
    + * 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 inline bool
    +atomic_dec_and_test(atomic_t *v)
    +{
    + return atomic_dec_return(v) == 0;
    +}
    +#define atomic_dec_and_test atomic_dec_and_test
    +#endif
    +
    +#ifndef atomic_inc_and_test
    +/**
    + * 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 inline bool
    +atomic_inc_and_test(atomic_t *v)
    +{
    + return atomic_inc_return(v) == 0;
    +}
    +#define atomic_inc_and_test atomic_inc_and_test
    +#endif
    +
    +#ifndef atomic_add_negative
    +/**
    + * 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 inline bool
    +atomic_add_negative(int i, atomic_t *v)
    +{
    + return atomic_add_return(i, v) < 0;
    +}
    +#define atomic_add_negative atomic_add_negative
    +#endif
    +
    +#ifndef atomic_fetch_add_unless
    +/**
    + * 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 inline int
    +atomic_fetch_add_unless(atomic_t *v, int a, int u)
    +{
    + int c = atomic_read(v);
    +
    + do {
    + if (unlikely(c == u))
    + break;
    + } while (!atomic_try_cmpxchg(v, &c, c + a));
    +
    + return c;
    +}
    +#define atomic_fetch_add_unless atomic_fetch_add_unless
    +#endif
    +
    +#ifndef atomic_add_unless
    +/**
    + * 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 inline bool
    +atomic_add_unless(atomic_t *v, int a, int u)
    +{
    + return atomic_fetch_add_unless(v, a, u) != u;
    +}
    +#define atomic_add_unless atomic_add_unless
    +#endif
    +
    +#ifndef atomic_inc_not_zero
    +/**
    + * 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 inline bool
    +atomic_inc_not_zero(atomic_t *v)
    +{
    + return atomic_add_unless(v, 1, 0);
    +}
    +#define atomic_inc_not_zero atomic_inc_not_zero
    +#endif
    +
    +#ifndef atomic_inc_unless_negative
    +static inline bool
    +atomic_inc_unless_negative(atomic_t *v)
    +{
    + int c = atomic_read(v);
    +
    + do {
    + if (unlikely(c < 0))
    + return false;
    + } while (!atomic_try_cmpxchg(v, &c, c + 1));
    +
    + return true;
    +}
    +#define atomic_inc_unless_negative atomic_inc_unless_negative
    +#endif
    +
    +#ifndef atomic_dec_unless_positive
    +static inline bool
    +atomic_dec_unless_positive(atomic_t *v)
    +{
    + int c = atomic_read(v);
    +
    + do {
    + if (unlikely(c > 0))
    + return false;
    + } while (!atomic_try_cmpxchg(v, &c, c - 1));
    +
    + return true;
    +}
    +#define atomic_dec_unless_positive atomic_dec_unless_positive
    +#endif
    +
    +#ifndef atomic_dec_if_positive
    +static inline int
    +atomic_dec_if_positive(atomic_t *v)
    +{
    + int dec, c = atomic_read(v);
    +
    + do {
    + dec = c - 1;
    + if (unlikely(dec < 0))
    + break;
    + } while (!atomic_try_cmpxchg(v, &c, dec));
    +
    + return dec;
    +}
    +#define atomic_dec_if_positive atomic_dec_if_positive
    +#endif
    +
    +#define atomic_cond_read_acquire(v, c) smp_cond_load_acquire(&(v)->counter, (c))
    +#define atomic_cond_read_relaxed(v, c) smp_cond_load_relaxed(&(v)->counter, (c))
    +
    +#ifdef CONFIG_GENERIC_ATOMIC64
    +#include <asm-generic/atomic64.h>
    +#endif
    +
    +#ifndef atomic64_read_acquire
    +static inline s64
    +atomic64_read_acquire(const atomic64_t *v)
    +{
    + return smp_load_acquire(&(v)->counter);
    +}
    +#define atomic64_read_acquire atomic64_read_acquire
    +#endif
    +
    +#ifndef atomic64_set_release
    +static inline void
    +atomic64_set_release(atomic64_t *v, s64 i)
    +{
    + smp_store_release(&(v)->counter, i);
    +}
    +#define atomic64_set_release atomic64_set_release
    +#endif
    +
    +#ifndef atomic64_add_return_relaxed
    +#define atomic64_add_return_acquire atomic64_add_return
    +#define atomic64_add_return_release atomic64_add_return
    +#define atomic64_add_return_relaxed atomic64_add_return
    +#else /* atomic64_add_return_relaxed */
    +
    +#ifndef atomic64_add_return_acquire
    +static inline s64
    +atomic64_add_return_acquire(s64 i, atomic64_t *v)
    +{
    + s64 ret = atomic64_add_return_relaxed(i, v);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic64_add_return_acquire atomic64_add_return_acquire
    +#endif
    +
    +#ifndef atomic64_add_return_release
    +static inline s64
    +atomic64_add_return_release(s64 i, atomic64_t *v)
    +{
    + __atomic_release_fence();
    + return atomic64_add_return_relaxed(i, v);
    +}
    +#define atomic64_add_return_release atomic64_add_return_release
    +#endif
    +
    +#ifndef atomic64_add_return
    +static inline s64
    +atomic64_add_return(s64 i, atomic64_t *v)
    +{
    + s64 ret;
    + __atomic_pre_full_fence();
    + ret = atomic64_add_return_relaxed(i, v);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic64_add_return atomic64_add_return
    +#endif
    +
    +#endif /* atomic64_add_return_relaxed */
    +
    +#ifndef atomic64_fetch_add_relaxed
    +#define atomic64_fetch_add_acquire atomic64_fetch_add
    +#define atomic64_fetch_add_release atomic64_fetch_add
    +#define atomic64_fetch_add_relaxed atomic64_fetch_add
    +#else /* atomic64_fetch_add_relaxed */
    +
    +#ifndef atomic64_fetch_add_acquire
    +static inline s64
    +atomic64_fetch_add_acquire(s64 i, atomic64_t *v)
    +{
    + s64 ret = atomic64_fetch_add_relaxed(i, v);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic64_fetch_add_acquire atomic64_fetch_add_acquire
    +#endif
    +
    +#ifndef atomic64_fetch_add_release
    +static inline s64
    +atomic64_fetch_add_release(s64 i, atomic64_t *v)
    +{
    + __atomic_release_fence();
    + return atomic64_fetch_add_relaxed(i, v);
    +}
    +#define atomic64_fetch_add_release atomic64_fetch_add_release
    +#endif
    +
    +#ifndef atomic64_fetch_add
    +static inline s64
    +atomic64_fetch_add(s64 i, atomic64_t *v)
    +{
    + s64 ret;
    + __atomic_pre_full_fence();
    + ret = atomic64_fetch_add_relaxed(i, v);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic64_fetch_add atomic64_fetch_add
    +#endif
    +
    +#endif /* atomic64_fetch_add_relaxed */
    +
    +#ifndef atomic64_sub_return_relaxed
    +#define atomic64_sub_return_acquire atomic64_sub_return
    +#define atomic64_sub_return_release atomic64_sub_return
    +#define atomic64_sub_return_relaxed atomic64_sub_return
    +#else /* atomic64_sub_return_relaxed */
    +
    +#ifndef atomic64_sub_return_acquire
    +static inline s64
    +atomic64_sub_return_acquire(s64 i, atomic64_t *v)
    +{
    + s64 ret = atomic64_sub_return_relaxed(i, v);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic64_sub_return_acquire atomic64_sub_return_acquire
    +#endif
    +
    +#ifndef atomic64_sub_return_release
    +static inline s64
    +atomic64_sub_return_release(s64 i, atomic64_t *v)
    +{
    + __atomic_release_fence();
    + return atomic64_sub_return_relaxed(i, v);
    +}
    +#define atomic64_sub_return_release atomic64_sub_return_release
    +#endif
    +
    +#ifndef atomic64_sub_return
    +static inline s64
    +atomic64_sub_return(s64 i, atomic64_t *v)
    +{
    + s64 ret;
    + __atomic_pre_full_fence();
    + ret = atomic64_sub_return_relaxed(i, v);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic64_sub_return atomic64_sub_return
    +#endif
    +
    +#endif /* atomic64_sub_return_relaxed */
    +
    +#ifndef atomic64_fetch_sub_relaxed
    +#define atomic64_fetch_sub_acquire atomic64_fetch_sub
    +#define atomic64_fetch_sub_release atomic64_fetch_sub
    +#define atomic64_fetch_sub_relaxed atomic64_fetch_sub
    +#else /* atomic64_fetch_sub_relaxed */
    +
    +#ifndef atomic64_fetch_sub_acquire
    +static inline s64
    +atomic64_fetch_sub_acquire(s64 i, atomic64_t *v)
    +{
    + s64 ret = atomic64_fetch_sub_relaxed(i, v);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic64_fetch_sub_acquire atomic64_fetch_sub_acquire
    +#endif
    +
    +#ifndef atomic64_fetch_sub_release
    +static inline s64
    +atomic64_fetch_sub_release(s64 i, atomic64_t *v)
    +{
    + __atomic_release_fence();
    + return atomic64_fetch_sub_relaxed(i, v);
    +}
    +#define atomic64_fetch_sub_release atomic64_fetch_sub_release
    +#endif
    +
    +#ifndef atomic64_fetch_sub
    +static inline s64
    +atomic64_fetch_sub(s64 i, atomic64_t *v)
    +{
    + s64 ret;
    + __atomic_pre_full_fence();
    + ret = atomic64_fetch_sub_relaxed(i, v);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic64_fetch_sub atomic64_fetch_sub
    +#endif
    +
    +#endif /* atomic64_fetch_sub_relaxed */
    +
    +#ifndef atomic64_inc
    +static inline void
    +atomic64_inc(atomic64_t *v)
    +{
    + atomic64_add(1, v);
    +}
    +#define atomic64_inc atomic64_inc
    +#endif
    +
    +#ifndef atomic64_inc_return_relaxed
    +#ifdef atomic64_inc_return
    +#define atomic64_inc_return_acquire atomic64_inc_return
    +#define atomic64_inc_return_release atomic64_inc_return
    +#define atomic64_inc_return_relaxed atomic64_inc_return
    +#endif /* atomic64_inc_return */
    +
    +#ifndef atomic64_inc_return
    +static inline s64
    +atomic64_inc_return(atomic64_t *v)
    +{
    + return atomic64_add_return(1, v);
    +}
    +#define atomic64_inc_return atomic64_inc_return
    +#endif
    +
    +#ifndef atomic64_inc_return_acquire
    +static inline s64
    +atomic64_inc_return_acquire(atomic64_t *v)
    +{
    + return atomic64_add_return_acquire(1, v);
    +}
    +#define atomic64_inc_return_acquire atomic64_inc_return_acquire
    +#endif
    +
    +#ifndef atomic64_inc_return_release
    +static inline s64
    +atomic64_inc_return_release(atomic64_t *v)
    +{
    + return atomic64_add_return_release(1, v);
    +}
    +#define atomic64_inc_return_release atomic64_inc_return_release
    +#endif
    +
    +#ifndef atomic64_inc_return_relaxed
    +static inline s64
    +atomic64_inc_return_relaxed(atomic64_t *v)
    +{
    + return atomic64_add_return_relaxed(1, v);
    +}
    +#define atomic64_inc_return_relaxed atomic64_inc_return_relaxed
    +#endif
    +
    +#else /* atomic64_inc_return_relaxed */
    +
    +#ifndef atomic64_inc_return_acquire
    +static inline s64
    +atomic64_inc_return_acquire(atomic64_t *v)
    +{
    + s64 ret = atomic64_inc_return_relaxed(v);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic64_inc_return_acquire atomic64_inc_return_acquire
    +#endif
    +
    +#ifndef atomic64_inc_return_release
    +static inline s64
    +atomic64_inc_return_release(atomic64_t *v)
    +{
    + __atomic_release_fence();
    + return atomic64_inc_return_relaxed(v);
    +}
    +#define atomic64_inc_return_release atomic64_inc_return_release
    +#endif
    +
    +#ifndef atomic64_inc_return
    +static inline s64
    +atomic64_inc_return(atomic64_t *v)
    +{
    + s64 ret;
    + __atomic_pre_full_fence();
    + ret = atomic64_inc_return_relaxed(v);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic64_inc_return atomic64_inc_return
    +#endif
    +
    +#endif /* atomic64_inc_return_relaxed */
    +
    +#ifndef atomic64_fetch_inc_relaxed
    +#ifdef atomic64_fetch_inc
    +#define atomic64_fetch_inc_acquire atomic64_fetch_inc
    +#define atomic64_fetch_inc_release atomic64_fetch_inc
    +#define atomic64_fetch_inc_relaxed atomic64_fetch_inc
    +#endif /* atomic64_fetch_inc */
    +
    +#ifndef atomic64_fetch_inc
    +static inline s64
    +atomic64_fetch_inc(atomic64_t *v)
    +{
    + return atomic64_fetch_add(1, v);
    +}
    +#define atomic64_fetch_inc atomic64_fetch_inc
    +#endif
    +
    +#ifndef atomic64_fetch_inc_acquire
    +static inline s64
    +atomic64_fetch_inc_acquire(atomic64_t *v)
    +{
    + return atomic64_fetch_add_acquire(1, v);
    +}
    +#define atomic64_fetch_inc_acquire atomic64_fetch_inc_acquire
    +#endif
    +
    +#ifndef atomic64_fetch_inc_release
    +static inline s64
    +atomic64_fetch_inc_release(atomic64_t *v)
    +{
    + return atomic64_fetch_add_release(1, v);
    +}
    +#define atomic64_fetch_inc_release atomic64_fetch_inc_release
    +#endif
    +
    +#ifndef atomic64_fetch_inc_relaxed
    +static inline s64
    +atomic64_fetch_inc_relaxed(atomic64_t *v)
    +{
    + return atomic64_fetch_add_relaxed(1, v);
    +}
    +#define atomic64_fetch_inc_relaxed atomic64_fetch_inc_relaxed
    +#endif
    +
    +#else /* atomic64_fetch_inc_relaxed */
    +
    +#ifndef atomic64_fetch_inc_acquire
    +static inline s64
    +atomic64_fetch_inc_acquire(atomic64_t *v)
    +{
    + s64 ret = atomic64_fetch_inc_relaxed(v);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic64_fetch_inc_acquire atomic64_fetch_inc_acquire
    +#endif
    +
    +#ifndef atomic64_fetch_inc_release
    +static inline s64
    +atomic64_fetch_inc_release(atomic64_t *v)
    +{
    + __atomic_release_fence();
    + return atomic64_fetch_inc_relaxed(v);
    +}
    +#define atomic64_fetch_inc_release atomic64_fetch_inc_release
    +#endif
    +
    +#ifndef atomic64_fetch_inc
    +static inline s64
    +atomic64_fetch_inc(atomic64_t *v)
    +{
    + s64 ret;
    + __atomic_pre_full_fence();
    + ret = atomic64_fetch_inc_relaxed(v);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic64_fetch_inc atomic64_fetch_inc
    +#endif
    +
    +#endif /* atomic64_fetch_inc_relaxed */
    +
    +#ifndef atomic64_dec
    +static inline void
    +atomic64_dec(atomic64_t *v)
    +{
    + atomic64_sub(1, v);
    +}
    +#define atomic64_dec atomic64_dec
    +#endif
    +
    +#ifndef atomic64_dec_return_relaxed
    +#ifdef atomic64_dec_return
    +#define atomic64_dec_return_acquire atomic64_dec_return
    +#define atomic64_dec_return_release atomic64_dec_return
    +#define atomic64_dec_return_relaxed atomic64_dec_return
    +#endif /* atomic64_dec_return */
    +
    +#ifndef atomic64_dec_return
    +static inline s64
    +atomic64_dec_return(atomic64_t *v)
    +{
    + return atomic64_sub_return(1, v);
    +}
    +#define atomic64_dec_return atomic64_dec_return
    +#endif
    +
    +#ifndef atomic64_dec_return_acquire
    +static inline s64
    +atomic64_dec_return_acquire(atomic64_t *v)
    +{
    + return atomic64_sub_return_acquire(1, v);
    +}
    +#define atomic64_dec_return_acquire atomic64_dec_return_acquire
    +#endif
    +
    +#ifndef atomic64_dec_return_release
    +static inline s64
    +atomic64_dec_return_release(atomic64_t *v)
    +{
    + return atomic64_sub_return_release(1, v);
    +}
    +#define atomic64_dec_return_release atomic64_dec_return_release
    +#endif
    +
    +#ifndef atomic64_dec_return_relaxed
    +static inline s64
    +atomic64_dec_return_relaxed(atomic64_t *v)
    +{
    + return atomic64_sub_return_relaxed(1, v);
    +}
    +#define atomic64_dec_return_relaxed atomic64_dec_return_relaxed
    +#endif
    +
    +#else /* atomic64_dec_return_relaxed */
    +
    +#ifndef atomic64_dec_return_acquire
    +static inline s64
    +atomic64_dec_return_acquire(atomic64_t *v)
    +{
    + s64 ret = atomic64_dec_return_relaxed(v);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic64_dec_return_acquire atomic64_dec_return_acquire
    +#endif
    +
    +#ifndef atomic64_dec_return_release
    +static inline s64
    +atomic64_dec_return_release(atomic64_t *v)
    +{
    + __atomic_release_fence();
    + return atomic64_dec_return_relaxed(v);
    +}
    +#define atomic64_dec_return_release atomic64_dec_return_release
    +#endif
    +
    +#ifndef atomic64_dec_return
    +static inline s64
    +atomic64_dec_return(atomic64_t *v)
    +{
    + s64 ret;
    + __atomic_pre_full_fence();
    + ret = atomic64_dec_return_relaxed(v);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic64_dec_return atomic64_dec_return
    +#endif
    +
    +#endif /* atomic64_dec_return_relaxed */
    +
    +#ifndef atomic64_fetch_dec_relaxed
    +#ifdef atomic64_fetch_dec
    +#define atomic64_fetch_dec_acquire atomic64_fetch_dec
    +#define atomic64_fetch_dec_release atomic64_fetch_dec
    +#define atomic64_fetch_dec_relaxed atomic64_fetch_dec
    +#endif /* atomic64_fetch_dec */
    +
    +#ifndef atomic64_fetch_dec
    +static inline s64
    +atomic64_fetch_dec(atomic64_t *v)
    +{
    + return atomic64_fetch_sub(1, v);
    +}
    +#define atomic64_fetch_dec atomic64_fetch_dec
    +#endif
    +
    +#ifndef atomic64_fetch_dec_acquire
    +static inline s64
    +atomic64_fetch_dec_acquire(atomic64_t *v)
    +{
    + return atomic64_fetch_sub_acquire(1, v);
    +}
    +#define atomic64_fetch_dec_acquire atomic64_fetch_dec_acquire
    +#endif
    +
    +#ifndef atomic64_fetch_dec_release
    +static inline s64
    +atomic64_fetch_dec_release(atomic64_t *v)
    +{
    + return atomic64_fetch_sub_release(1, v);
    +}
    +#define atomic64_fetch_dec_release atomic64_fetch_dec_release
    +#endif
    +
    +#ifndef atomic64_fetch_dec_relaxed
    +static inline s64
    +atomic64_fetch_dec_relaxed(atomic64_t *v)
    +{
    + return atomic64_fetch_sub_relaxed(1, v);
    +}
    +#define atomic64_fetch_dec_relaxed atomic64_fetch_dec_relaxed
    +#endif
    +
    +#else /* atomic64_fetch_dec_relaxed */
    +
    +#ifndef atomic64_fetch_dec_acquire
    +static inline s64
    +atomic64_fetch_dec_acquire(atomic64_t *v)
    +{
    + s64 ret = atomic64_fetch_dec_relaxed(v);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic64_fetch_dec_acquire atomic64_fetch_dec_acquire
    +#endif
    +
    +#ifndef atomic64_fetch_dec_release
    +static inline s64
    +atomic64_fetch_dec_release(atomic64_t *v)
    +{
    + __atomic_release_fence();
    + return atomic64_fetch_dec_relaxed(v);
    +}
    +#define atomic64_fetch_dec_release atomic64_fetch_dec_release
    +#endif
    +
    +#ifndef atomic64_fetch_dec
    +static inline s64
    +atomic64_fetch_dec(atomic64_t *v)
    +{
    + s64 ret;
    + __atomic_pre_full_fence();
    + ret = atomic64_fetch_dec_relaxed(v);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic64_fetch_dec atomic64_fetch_dec
    +#endif
    +
    +#endif /* atomic64_fetch_dec_relaxed */
    +
    +#ifndef atomic64_fetch_and_relaxed
    +#define atomic64_fetch_and_acquire atomic64_fetch_and
    +#define atomic64_fetch_and_release atomic64_fetch_and
    +#define atomic64_fetch_and_relaxed atomic64_fetch_and
    +#else /* atomic64_fetch_and_relaxed */
    +
    +#ifndef atomic64_fetch_and_acquire
    +static inline s64
    +atomic64_fetch_and_acquire(s64 i, atomic64_t *v)
    +{
    + s64 ret = atomic64_fetch_and_relaxed(i, v);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic64_fetch_and_acquire atomic64_fetch_and_acquire
    +#endif
    +
    +#ifndef atomic64_fetch_and_release
    +static inline s64
    +atomic64_fetch_and_release(s64 i, atomic64_t *v)
    +{
    + __atomic_release_fence();
    + return atomic64_fetch_and_relaxed(i, v);
    +}
    +#define atomic64_fetch_and_release atomic64_fetch_and_release
    +#endif
    +
    +#ifndef atomic64_fetch_and
    +static inline s64
    +atomic64_fetch_and(s64 i, atomic64_t *v)
    +{
    + s64 ret;
    + __atomic_pre_full_fence();
    + ret = atomic64_fetch_and_relaxed(i, v);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic64_fetch_and atomic64_fetch_and
    +#endif
    +
    +#endif /* atomic64_fetch_and_relaxed */
    +
    +#ifndef atomic64_andnot
    +static inline void
    +atomic64_andnot(s64 i, atomic64_t *v)
    +{
    + atomic64_and(~i, v);
    +}
    +#define atomic64_andnot atomic64_andnot
    +#endif
    +
    +#ifndef atomic64_fetch_andnot_relaxed
    +#ifdef atomic64_fetch_andnot
    +#define atomic64_fetch_andnot_acquire atomic64_fetch_andnot
    +#define atomic64_fetch_andnot_release atomic64_fetch_andnot
    +#define atomic64_fetch_andnot_relaxed atomic64_fetch_andnot
    +#endif /* atomic64_fetch_andnot */
    +
    +#ifndef atomic64_fetch_andnot
    +static inline s64
    +atomic64_fetch_andnot(s64 i, atomic64_t *v)
    +{
    + return atomic64_fetch_and(~i, v);
    +}
    +#define atomic64_fetch_andnot atomic64_fetch_andnot
    +#endif
    +
    +#ifndef atomic64_fetch_andnot_acquire
    +static inline s64
    +atomic64_fetch_andnot_acquire(s64 i, atomic64_t *v)
    +{
    + return atomic64_fetch_and_acquire(~i, v);
    +}
    +#define atomic64_fetch_andnot_acquire atomic64_fetch_andnot_acquire
    +#endif
    +
    +#ifndef atomic64_fetch_andnot_release
    +static inline s64
    +atomic64_fetch_andnot_release(s64 i, atomic64_t *v)
    +{
    + return atomic64_fetch_and_release(~i, v);
    +}
    +#define atomic64_fetch_andnot_release atomic64_fetch_andnot_release
    +#endif
    +
    +#ifndef atomic64_fetch_andnot_relaxed
    +static inline s64
    +atomic64_fetch_andnot_relaxed(s64 i, atomic64_t *v)
    +{
    + return atomic64_fetch_and_relaxed(~i, v);
    +}
    +#define atomic64_fetch_andnot_relaxed atomic64_fetch_andnot_relaxed
    +#endif
    +
    +#else /* atomic64_fetch_andnot_relaxed */
    +
    +#ifndef atomic64_fetch_andnot_acquire
    +static inline s64
    +atomic64_fetch_andnot_acquire(s64 i, atomic64_t *v)
    +{
    + s64 ret = atomic64_fetch_andnot_relaxed(i, v);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic64_fetch_andnot_acquire atomic64_fetch_andnot_acquire
    +#endif
    +
    +#ifndef atomic64_fetch_andnot_release
    +static inline s64
    +atomic64_fetch_andnot_release(s64 i, atomic64_t *v)
    +{
    + __atomic_release_fence();
    + return atomic64_fetch_andnot_relaxed(i, v);
    +}
    +#define atomic64_fetch_andnot_release atomic64_fetch_andnot_release
    +#endif
    +
    +#ifndef atomic64_fetch_andnot
    +static inline s64
    +atomic64_fetch_andnot(s64 i, atomic64_t *v)
    +{
    + s64 ret;
    + __atomic_pre_full_fence();
    + ret = atomic64_fetch_andnot_relaxed(i, v);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic64_fetch_andnot atomic64_fetch_andnot
    +#endif
    +
    +#endif /* atomic64_fetch_andnot_relaxed */
    +
    +#ifndef atomic64_fetch_or_relaxed
    +#define atomic64_fetch_or_acquire atomic64_fetch_or
    +#define atomic64_fetch_or_release atomic64_fetch_or
    +#define atomic64_fetch_or_relaxed atomic64_fetch_or
    +#else /* atomic64_fetch_or_relaxed */
    +
    +#ifndef atomic64_fetch_or_acquire
    +static inline s64
    +atomic64_fetch_or_acquire(s64 i, atomic64_t *v)
    +{
    + s64 ret = atomic64_fetch_or_relaxed(i, v);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic64_fetch_or_acquire atomic64_fetch_or_acquire
    +#endif
    +
    +#ifndef atomic64_fetch_or_release
    +static inline s64
    +atomic64_fetch_or_release(s64 i, atomic64_t *v)
    +{
    + __atomic_release_fence();
    + return atomic64_fetch_or_relaxed(i, v);
    +}
    +#define atomic64_fetch_or_release atomic64_fetch_or_release
    +#endif
    +
    +#ifndef atomic64_fetch_or
    +static inline s64
    +atomic64_fetch_or(s64 i, atomic64_t *v)
    +{
    + s64 ret;
    + __atomic_pre_full_fence();
    + ret = atomic64_fetch_or_relaxed(i, v);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic64_fetch_or atomic64_fetch_or
    +#endif
    +
    +#endif /* atomic64_fetch_or_relaxed */
    +
    +#ifndef atomic64_fetch_xor_relaxed
    +#define atomic64_fetch_xor_acquire atomic64_fetch_xor
    +#define atomic64_fetch_xor_release atomic64_fetch_xor
    +#define atomic64_fetch_xor_relaxed atomic64_fetch_xor
    +#else /* atomic64_fetch_xor_relaxed */
    +
    +#ifndef atomic64_fetch_xor_acquire
    +static inline s64
    +atomic64_fetch_xor_acquire(s64 i, atomic64_t *v)
    +{
    + s64 ret = atomic64_fetch_xor_relaxed(i, v);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic64_fetch_xor_acquire atomic64_fetch_xor_acquire
    +#endif
    +
    +#ifndef atomic64_fetch_xor_release
    +static inline s64
    +atomic64_fetch_xor_release(s64 i, atomic64_t *v)
    +{
    + __atomic_release_fence();
    + return atomic64_fetch_xor_relaxed(i, v);
    +}
    +#define atomic64_fetch_xor_release atomic64_fetch_xor_release
    +#endif
    +
    +#ifndef atomic64_fetch_xor
    +static inline s64
    +atomic64_fetch_xor(s64 i, atomic64_t *v)
    +{
    + s64 ret;
    + __atomic_pre_full_fence();
    + ret = atomic64_fetch_xor_relaxed(i, v);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic64_fetch_xor atomic64_fetch_xor
    +#endif
    +
    +#endif /* atomic64_fetch_xor_relaxed */
    +
    +#ifndef atomic64_xchg_relaxed
    +#define atomic64_xchg_acquire atomic64_xchg
    +#define atomic64_xchg_release atomic64_xchg
    +#define atomic64_xchg_relaxed atomic64_xchg
    +#else /* atomic64_xchg_relaxed */
    +
    +#ifndef atomic64_xchg_acquire
    +static inline s64
    +atomic64_xchg_acquire(atomic64_t *v, s64 i)
    +{
    + s64 ret = atomic64_xchg_relaxed(v, i);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic64_xchg_acquire atomic64_xchg_acquire
    +#endif
    +
    +#ifndef atomic64_xchg_release
    +static inline s64
    +atomic64_xchg_release(atomic64_t *v, s64 i)
    +{
    + __atomic_release_fence();
    + return atomic64_xchg_relaxed(v, i);
    +}
    +#define atomic64_xchg_release atomic64_xchg_release
    +#endif
    +
    +#ifndef atomic64_xchg
    +static inline s64
    +atomic64_xchg(atomic64_t *v, s64 i)
    +{
    + s64 ret;
    + __atomic_pre_full_fence();
    + ret = atomic64_xchg_relaxed(v, i);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic64_xchg atomic64_xchg
    +#endif
    +
    +#endif /* atomic64_xchg_relaxed */
    +
    +#ifndef atomic64_cmpxchg_relaxed
    +#define atomic64_cmpxchg_acquire atomic64_cmpxchg
    +#define atomic64_cmpxchg_release atomic64_cmpxchg
    +#define atomic64_cmpxchg_relaxed atomic64_cmpxchg
    +#else /* atomic64_cmpxchg_relaxed */
    +
    +#ifndef atomic64_cmpxchg_acquire
    +static inline s64
    +atomic64_cmpxchg_acquire(atomic64_t *v, s64 old, s64 new)
    +{
    + s64 ret = atomic64_cmpxchg_relaxed(v, old, new);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic64_cmpxchg_acquire atomic64_cmpxchg_acquire
    +#endif
    +
    +#ifndef atomic64_cmpxchg_release
    +static inline s64
    +atomic64_cmpxchg_release(atomic64_t *v, s64 old, s64 new)
    +{
    + __atomic_release_fence();
    + return atomic64_cmpxchg_relaxed(v, old, new);
    +}
    +#define atomic64_cmpxchg_release atomic64_cmpxchg_release
    +#endif
    +
    +#ifndef atomic64_cmpxchg
    +static inline s64
    +atomic64_cmpxchg(atomic64_t *v, s64 old, s64 new)
    +{
    + s64 ret;
    + __atomic_pre_full_fence();
    + ret = atomic64_cmpxchg_relaxed(v, old, new);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic64_cmpxchg atomic64_cmpxchg
    +#endif
    +
    +#endif /* atomic64_cmpxchg_relaxed */
    +
    +#ifndef atomic64_try_cmpxchg_relaxed
    +#ifdef atomic64_try_cmpxchg
    +#define atomic64_try_cmpxchg_acquire atomic64_try_cmpxchg
    +#define atomic64_try_cmpxchg_release atomic64_try_cmpxchg
    +#define atomic64_try_cmpxchg_relaxed atomic64_try_cmpxchg
    +#endif /* atomic64_try_cmpxchg */
    +
    +#ifndef atomic64_try_cmpxchg
    +static inline bool
    +atomic64_try_cmpxchg(atomic64_t *v, s64 *old, s64 new)
    +{
    + s64 r, o = *old;
    + r = atomic64_cmpxchg(v, o, new);
    + if (unlikely(r != o))
    + *old = r;
    + return likely(r == o);
    +}
    +#define atomic64_try_cmpxchg atomic64_try_cmpxchg
    +#endif
    +
    +#ifndef atomic64_try_cmpxchg_acquire
    +static inline bool
    +atomic64_try_cmpxchg_acquire(atomic64_t *v, s64 *old, s64 new)
    +{
    + s64 r, o = *old;
    + r = atomic64_cmpxchg_acquire(v, o, new);
    + if (unlikely(r != o))
    + *old = r;
    + return likely(r == o);
    +}
    +#define atomic64_try_cmpxchg_acquire atomic64_try_cmpxchg_acquire
    +#endif
    +
    +#ifndef atomic64_try_cmpxchg_release
    +static inline bool
    +atomic64_try_cmpxchg_release(atomic64_t *v, s64 *old, s64 new)
    +{
    + s64 r, o = *old;
    + r = atomic64_cmpxchg_release(v, o, new);
    + if (unlikely(r != o))
    + *old = r;
    + return likely(r == o);
    +}
    +#define atomic64_try_cmpxchg_release atomic64_try_cmpxchg_release
    +#endif
    +
    +#ifndef atomic64_try_cmpxchg_relaxed
    +static inline bool
    +atomic64_try_cmpxchg_relaxed(atomic64_t *v, s64 *old, s64 new)
    +{
    + s64 r, o = *old;
    + r = atomic64_cmpxchg_relaxed(v, o, new);
    + if (unlikely(r != o))
    + *old = r;
    + return likely(r == o);
    +}
    +#define atomic64_try_cmpxchg_relaxed atomic64_try_cmpxchg_relaxed
    +#endif
    +
    +#else /* atomic64_try_cmpxchg_relaxed */
    +
    +#ifndef atomic64_try_cmpxchg_acquire
    +static inline bool
    +atomic64_try_cmpxchg_acquire(atomic64_t *v, s64 *old, s64 new)
    +{
    + bool ret = atomic64_try_cmpxchg_relaxed(v, old, new);
    + __atomic_acquire_fence();
    + return ret;
    +}
    +#define atomic64_try_cmpxchg_acquire atomic64_try_cmpxchg_acquire
    +#endif
    +
    +#ifndef atomic64_try_cmpxchg_release
    +static inline bool
    +atomic64_try_cmpxchg_release(atomic64_t *v, s64 *old, s64 new)
    +{
    + __atomic_release_fence();
    + return atomic64_try_cmpxchg_relaxed(v, old, new);
    +}
    +#define atomic64_try_cmpxchg_release atomic64_try_cmpxchg_release
    +#endif
    +
    +#ifndef atomic64_try_cmpxchg
    +static inline bool
    +atomic64_try_cmpxchg(atomic64_t *v, s64 *old, s64 new)
    +{
    + bool ret;
    + __atomic_pre_full_fence();
    + ret = atomic64_try_cmpxchg_relaxed(v, old, new);
    + __atomic_post_full_fence();
    + return ret;
    +}
    +#define atomic64_try_cmpxchg atomic64_try_cmpxchg
    +#endif
    +
    +#endif /* atomic64_try_cmpxchg_relaxed */
    +
    +#ifndef atomic64_sub_and_test
    +/**
    + * 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 inline bool
    +atomic64_sub_and_test(s64 i, atomic64_t *v)
    +{
    + return atomic64_sub_return(i, v) == 0;
    +}
    +#define atomic64_sub_and_test atomic64_sub_and_test
    +#endif
    +
    +#ifndef atomic64_dec_and_test
    +/**
    + * 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 inline bool
    +atomic64_dec_and_test(atomic64_t *v)
    +{
    + return atomic64_dec_return(v) == 0;
    +}
    +#define atomic64_dec_and_test atomic64_dec_and_test
    +#endif
    +
    +#ifndef atomic64_inc_and_test
    +/**
    + * 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 inline bool
    +atomic64_inc_and_test(atomic64_t *v)
    +{
    + return atomic64_inc_return(v) == 0;
    +}
    +#define atomic64_inc_and_test atomic64_inc_and_test
    +#endif
    +
    +#ifndef atomic64_add_negative
    +/**
    + * 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 inline bool
    +atomic64_add_negative(s64 i, atomic64_t *v)
    +{
    + return atomic64_add_return(i, v) < 0;
    +}
    +#define atomic64_add_negative atomic64_add_negative
    +#endif
    +
    +#ifndef atomic64_fetch_add_unless
    +/**
    + * 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 inline s64
    +atomic64_fetch_add_unless(atomic64_t *v, s64 a, s64 u)
    +{
    + s64 c = atomic64_read(v);
    +
    + do {
    + if (unlikely(c == u))
    + break;
    + } while (!atomic64_try_cmpxchg(v, &c, c + a));
    +
    + return c;
    +}
    +#define atomic64_fetch_add_unless atomic64_fetch_add_unless
    +#endif
    +
    +#ifndef atomic64_add_unless
    +/**
    + * 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 inline bool
    +atomic64_add_unless(atomic64_t *v, s64 a, s64 u)
    +{
    + return atomic64_fetch_add_unless(v, a, u) != u;
    +}
    +#define atomic64_add_unless atomic64_add_unless
    +#endif
    +
    +#ifndef atomic64_inc_not_zero
    +/**
    + * 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 inline bool
    +atomic64_inc_not_zero(atomic64_t *v)
    +{
    + return atomic64_add_unless(v, 1, 0);
    +}
    +#define atomic64_inc_not_zero atomic64_inc_not_zero
    +#endif
    +
    +#ifndef atomic64_inc_unless_negative
    +static inline bool
    +atomic64_inc_unless_negative(atomic64_t *v)
    +{
    + s64 c = atomic64_read(v);
    +
    + do {
    + if (unlikely(c < 0))
    + return false;
    + } while (!atomic64_try_cmpxchg(v, &c, c + 1));
    +
    + return true;
    +}
    +#define atomic64_inc_unless_negative atomic64_inc_unless_negative
    +#endif
    +
    +#ifndef atomic64_dec_unless_positive
    +static inline bool
    +atomic64_dec_unless_positive(atomic64_t *v)
    +{
    + s64 c = atomic64_read(v);
    +
    + do {
    + if (unlikely(c > 0))
    + return false;
    + } while (!atomic64_try_cmpxchg(v, &c, c - 1));
    +
    + return true;
    +}
    +#define atomic64_dec_unless_positive atomic64_dec_unless_positive
    +#endif
    +
    +#ifndef atomic64_dec_if_positive
    +static inline s64
    +atomic64_dec_if_positive(atomic64_t *v)
    +{
    + s64 dec, c = atomic64_read(v);
    +
    + do {
    + dec = c - 1;
    + if (unlikely(dec < 0))
    + break;
    + } while (!atomic64_try_cmpxchg(v, &c, dec));
    +
    + return dec;
    +}
    +#define atomic64_dec_if_positive atomic64_dec_if_positive
    +#endif
    +
    +#define atomic64_cond_read_acquire(v, c) smp_cond_load_acquire(&(v)->counter, (c))
    +#define atomic64_cond_read_relaxed(v, c) smp_cond_load_relaxed(&(v)->counter, (c))
    +
    +#endif /* _LINUX_ATOMIC_FALLBACK_H */
    diff --git a/include/linux/atomic.h b/include/linux/atomic.h
    index 1e8e88bdaf09..4c0d009a46f0 100644
    --- a/include/linux/atomic.h
    +++ b/include/linux/atomic.h
    @@ -25,14 +25,6 @@
    * See Documentation/memory-barriers.txt for ACQUIRE/RELEASE definitions.
    */

    -#ifndef atomic_read_acquire
    -#define atomic_read_acquire(v) smp_load_acquire(&(v)->counter)
    -#endif
    -
    -#ifndef atomic_set_release
    -#define atomic_set_release(v, i) smp_store_release(&(v)->counter, (i))
    -#endif
    -
    /*
    * The idea here is to build acquire/release variants by adding explicit
    * barriers on top of the relaxed variant. In the case where the relaxed
    @@ -79,1238 +71,7 @@
    __ret; \
    })

    -/* atomic_add_return_relaxed */
    -#ifndef atomic_add_return_relaxed
    -#define atomic_add_return_relaxed atomic_add_return
    -#define atomic_add_return_acquire atomic_add_return
    -#define atomic_add_return_release atomic_add_return
    -
    -#else /* atomic_add_return_relaxed */
    -
    -#ifndef atomic_add_return_acquire
    -#define atomic_add_return_acquire(...) \
    - __atomic_op_acquire(atomic_add_return, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_add_return_release
    -#define atomic_add_return_release(...) \
    - __atomic_op_release(atomic_add_return, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_add_return
    -#define atomic_add_return(...) \
    - __atomic_op_fence(atomic_add_return, __VA_ARGS__)
    -#endif
    -#endif /* atomic_add_return_relaxed */
    -
    -#ifndef atomic_inc
    -#define atomic_inc(v) atomic_add(1, (v))
    -#endif
    -
    -/* atomic_inc_return_relaxed */
    -#ifndef atomic_inc_return_relaxed
    -
    -#ifndef atomic_inc_return
    -#define atomic_inc_return(v) atomic_add_return(1, (v))
    -#define atomic_inc_return_relaxed(v) atomic_add_return_relaxed(1, (v))
    -#define atomic_inc_return_acquire(v) atomic_add_return_acquire(1, (v))
    -#define atomic_inc_return_release(v) atomic_add_return_release(1, (v))
    -#else /* atomic_inc_return */
    -#define atomic_inc_return_relaxed atomic_inc_return
    -#define atomic_inc_return_acquire atomic_inc_return
    -#define atomic_inc_return_release atomic_inc_return
    -#endif /* atomic_inc_return */
    -
    -#else /* atomic_inc_return_relaxed */
    -
    -#ifndef atomic_inc_return_acquire
    -#define atomic_inc_return_acquire(...) \
    - __atomic_op_acquire(atomic_inc_return, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_inc_return_release
    -#define atomic_inc_return_release(...) \
    - __atomic_op_release(atomic_inc_return, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_inc_return
    -#define atomic_inc_return(...) \
    - __atomic_op_fence(atomic_inc_return, __VA_ARGS__)
    -#endif
    -#endif /* atomic_inc_return_relaxed */
    -
    -/* atomic_sub_return_relaxed */
    -#ifndef atomic_sub_return_relaxed
    -#define atomic_sub_return_relaxed atomic_sub_return
    -#define atomic_sub_return_acquire atomic_sub_return
    -#define atomic_sub_return_release atomic_sub_return
    -
    -#else /* atomic_sub_return_relaxed */
    -
    -#ifndef atomic_sub_return_acquire
    -#define atomic_sub_return_acquire(...) \
    - __atomic_op_acquire(atomic_sub_return, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_sub_return_release
    -#define atomic_sub_return_release(...) \
    - __atomic_op_release(atomic_sub_return, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_sub_return
    -#define atomic_sub_return(...) \
    - __atomic_op_fence(atomic_sub_return, __VA_ARGS__)
    -#endif
    -#endif /* atomic_sub_return_relaxed */
    -
    -#ifndef atomic_dec
    -#define atomic_dec(v) atomic_sub(1, (v))
    -#endif
    -
    -/* atomic_dec_return_relaxed */
    -#ifndef atomic_dec_return_relaxed
    -
    -#ifndef atomic_dec_return
    -#define atomic_dec_return(v) atomic_sub_return(1, (v))
    -#define atomic_dec_return_relaxed(v) atomic_sub_return_relaxed(1, (v))
    -#define atomic_dec_return_acquire(v) atomic_sub_return_acquire(1, (v))
    -#define atomic_dec_return_release(v) atomic_sub_return_release(1, (v))
    -#else /* atomic_dec_return */
    -#define atomic_dec_return_relaxed atomic_dec_return
    -#define atomic_dec_return_acquire atomic_dec_return
    -#define atomic_dec_return_release atomic_dec_return
    -#endif /* atomic_dec_return */
    -
    -#else /* atomic_dec_return_relaxed */
    -
    -#ifndef atomic_dec_return_acquire
    -#define atomic_dec_return_acquire(...) \
    - __atomic_op_acquire(atomic_dec_return, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_dec_return_release
    -#define atomic_dec_return_release(...) \
    - __atomic_op_release(atomic_dec_return, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_dec_return
    -#define atomic_dec_return(...) \
    - __atomic_op_fence(atomic_dec_return, __VA_ARGS__)
    -#endif
    -#endif /* atomic_dec_return_relaxed */
    -
    -
    -/* atomic_fetch_add_relaxed */
    -#ifndef atomic_fetch_add_relaxed
    -#define atomic_fetch_add_relaxed atomic_fetch_add
    -#define atomic_fetch_add_acquire atomic_fetch_add
    -#define atomic_fetch_add_release atomic_fetch_add
    -
    -#else /* atomic_fetch_add_relaxed */
    -
    -#ifndef atomic_fetch_add_acquire
    -#define atomic_fetch_add_acquire(...) \
    - __atomic_op_acquire(atomic_fetch_add, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_fetch_add_release
    -#define atomic_fetch_add_release(...) \
    - __atomic_op_release(atomic_fetch_add, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_fetch_add
    -#define atomic_fetch_add(...) \
    - __atomic_op_fence(atomic_fetch_add, __VA_ARGS__)
    -#endif
    -#endif /* atomic_fetch_add_relaxed */
    -
    -/* atomic_fetch_inc_relaxed */
    -#ifndef atomic_fetch_inc_relaxed
    -
    -#ifndef atomic_fetch_inc
    -#define atomic_fetch_inc(v) atomic_fetch_add(1, (v))
    -#define atomic_fetch_inc_relaxed(v) atomic_fetch_add_relaxed(1, (v))
    -#define atomic_fetch_inc_acquire(v) atomic_fetch_add_acquire(1, (v))
    -#define atomic_fetch_inc_release(v) atomic_fetch_add_release(1, (v))
    -#else /* atomic_fetch_inc */
    -#define atomic_fetch_inc_relaxed atomic_fetch_inc
    -#define atomic_fetch_inc_acquire atomic_fetch_inc
    -#define atomic_fetch_inc_release atomic_fetch_inc
    -#endif /* atomic_fetch_inc */
    -
    -#else /* atomic_fetch_inc_relaxed */
    -
    -#ifndef atomic_fetch_inc_acquire
    -#define atomic_fetch_inc_acquire(...) \
    - __atomic_op_acquire(atomic_fetch_inc, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_fetch_inc_release
    -#define atomic_fetch_inc_release(...) \
    - __atomic_op_release(atomic_fetch_inc, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_fetch_inc
    -#define atomic_fetch_inc(...) \
    - __atomic_op_fence(atomic_fetch_inc, __VA_ARGS__)
    -#endif
    -#endif /* atomic_fetch_inc_relaxed */
    -
    -/* atomic_fetch_sub_relaxed */
    -#ifndef atomic_fetch_sub_relaxed
    -#define atomic_fetch_sub_relaxed atomic_fetch_sub
    -#define atomic_fetch_sub_acquire atomic_fetch_sub
    -#define atomic_fetch_sub_release atomic_fetch_sub
    -
    -#else /* atomic_fetch_sub_relaxed */
    -
    -#ifndef atomic_fetch_sub_acquire
    -#define atomic_fetch_sub_acquire(...) \
    - __atomic_op_acquire(atomic_fetch_sub, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_fetch_sub_release
    -#define atomic_fetch_sub_release(...) \
    - __atomic_op_release(atomic_fetch_sub, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_fetch_sub
    -#define atomic_fetch_sub(...) \
    - __atomic_op_fence(atomic_fetch_sub, __VA_ARGS__)
    -#endif
    -#endif /* atomic_fetch_sub_relaxed */
    -
    -/* atomic_fetch_dec_relaxed */
    -#ifndef atomic_fetch_dec_relaxed
    -
    -#ifndef atomic_fetch_dec
    -#define atomic_fetch_dec(v) atomic_fetch_sub(1, (v))
    -#define atomic_fetch_dec_relaxed(v) atomic_fetch_sub_relaxed(1, (v))
    -#define atomic_fetch_dec_acquire(v) atomic_fetch_sub_acquire(1, (v))
    -#define atomic_fetch_dec_release(v) atomic_fetch_sub_release(1, (v))
    -#else /* atomic_fetch_dec */
    -#define atomic_fetch_dec_relaxed atomic_fetch_dec
    -#define atomic_fetch_dec_acquire atomic_fetch_dec
    -#define atomic_fetch_dec_release atomic_fetch_dec
    -#endif /* atomic_fetch_dec */
    -
    -#else /* atomic_fetch_dec_relaxed */
    -
    -#ifndef atomic_fetch_dec_acquire
    -#define atomic_fetch_dec_acquire(...) \
    - __atomic_op_acquire(atomic_fetch_dec, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_fetch_dec_release
    -#define atomic_fetch_dec_release(...) \
    - __atomic_op_release(atomic_fetch_dec, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_fetch_dec
    -#define atomic_fetch_dec(...) \
    - __atomic_op_fence(atomic_fetch_dec, __VA_ARGS__)
    -#endif
    -#endif /* atomic_fetch_dec_relaxed */
    -
    -/* atomic_fetch_or_relaxed */
    -#ifndef atomic_fetch_or_relaxed
    -#define atomic_fetch_or_relaxed atomic_fetch_or
    -#define atomic_fetch_or_acquire atomic_fetch_or
    -#define atomic_fetch_or_release atomic_fetch_or
    -
    -#else /* atomic_fetch_or_relaxed */
    -
    -#ifndef atomic_fetch_or_acquire
    -#define atomic_fetch_or_acquire(...) \
    - __atomic_op_acquire(atomic_fetch_or, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_fetch_or_release
    -#define atomic_fetch_or_release(...) \
    - __atomic_op_release(atomic_fetch_or, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_fetch_or
    -#define atomic_fetch_or(...) \
    - __atomic_op_fence(atomic_fetch_or, __VA_ARGS__)
    -#endif
    -#endif /* atomic_fetch_or_relaxed */
    -
    -/* atomic_fetch_and_relaxed */
    -#ifndef atomic_fetch_and_relaxed
    -#define atomic_fetch_and_relaxed atomic_fetch_and
    -#define atomic_fetch_and_acquire atomic_fetch_and
    -#define atomic_fetch_and_release atomic_fetch_and
    -
    -#else /* atomic_fetch_and_relaxed */
    -
    -#ifndef atomic_fetch_and_acquire
    -#define atomic_fetch_and_acquire(...) \
    - __atomic_op_acquire(atomic_fetch_and, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_fetch_and_release
    -#define atomic_fetch_and_release(...) \
    - __atomic_op_release(atomic_fetch_and, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_fetch_and
    -#define atomic_fetch_and(...) \
    - __atomic_op_fence(atomic_fetch_and, __VA_ARGS__)
    -#endif
    -#endif /* atomic_fetch_and_relaxed */
    -
    -#ifndef atomic_andnot
    -#define atomic_andnot(i, v) atomic_and(~(int)(i), (v))
    -#endif
    -
    -#ifndef atomic_fetch_andnot_relaxed
    -
    -#ifndef atomic_fetch_andnot
    -#define atomic_fetch_andnot(i, v) atomic_fetch_and(~(int)(i), (v))
    -#define atomic_fetch_andnot_relaxed(i, v) atomic_fetch_and_relaxed(~(int)(i), (v))
    -#define atomic_fetch_andnot_acquire(i, v) atomic_fetch_and_acquire(~(int)(i), (v))
    -#define atomic_fetch_andnot_release(i, v) atomic_fetch_and_release(~(int)(i), (v))
    -#else /* atomic_fetch_andnot */
    -#define atomic_fetch_andnot_relaxed atomic_fetch_andnot
    -#define atomic_fetch_andnot_acquire atomic_fetch_andnot
    -#define atomic_fetch_andnot_release atomic_fetch_andnot
    -#endif /* atomic_fetch_andnot */
    -
    -#else /* atomic_fetch_andnot_relaxed */
    -
    -#ifndef atomic_fetch_andnot_acquire
    -#define atomic_fetch_andnot_acquire(...) \
    - __atomic_op_acquire(atomic_fetch_andnot, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_fetch_andnot_release
    -#define atomic_fetch_andnot_release(...) \
    - __atomic_op_release(atomic_fetch_andnot, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_fetch_andnot
    -#define atomic_fetch_andnot(...) \
    - __atomic_op_fence(atomic_fetch_andnot, __VA_ARGS__)
    -#endif
    -#endif /* atomic_fetch_andnot_relaxed */
    -
    -/* atomic_fetch_xor_relaxed */
    -#ifndef atomic_fetch_xor_relaxed
    -#define atomic_fetch_xor_relaxed atomic_fetch_xor
    -#define atomic_fetch_xor_acquire atomic_fetch_xor
    -#define atomic_fetch_xor_release atomic_fetch_xor
    -
    -#else /* atomic_fetch_xor_relaxed */
    -
    -#ifndef atomic_fetch_xor_acquire
    -#define atomic_fetch_xor_acquire(...) \
    - __atomic_op_acquire(atomic_fetch_xor, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_fetch_xor_release
    -#define atomic_fetch_xor_release(...) \
    - __atomic_op_release(atomic_fetch_xor, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_fetch_xor
    -#define atomic_fetch_xor(...) \
    - __atomic_op_fence(atomic_fetch_xor, __VA_ARGS__)
    -#endif
    -#endif /* atomic_fetch_xor_relaxed */
    -
    -
    -/* atomic_xchg_relaxed */
    -#ifndef atomic_xchg_relaxed
    -#define atomic_xchg_relaxed atomic_xchg
    -#define atomic_xchg_acquire atomic_xchg
    -#define atomic_xchg_release atomic_xchg
    -
    -#else /* atomic_xchg_relaxed */
    -
    -#ifndef atomic_xchg_acquire
    -#define atomic_xchg_acquire(...) \
    - __atomic_op_acquire(atomic_xchg, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_xchg_release
    -#define atomic_xchg_release(...) \
    - __atomic_op_release(atomic_xchg, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_xchg
    -#define atomic_xchg(...) \
    - __atomic_op_fence(atomic_xchg, __VA_ARGS__)
    -#endif
    -#endif /* atomic_xchg_relaxed */
    -
    -/* atomic_cmpxchg_relaxed */
    -#ifndef atomic_cmpxchg_relaxed
    -#define atomic_cmpxchg_relaxed atomic_cmpxchg
    -#define atomic_cmpxchg_acquire atomic_cmpxchg
    -#define atomic_cmpxchg_release atomic_cmpxchg
    -
    -#else /* atomic_cmpxchg_relaxed */
    -
    -#ifndef atomic_cmpxchg_acquire
    -#define atomic_cmpxchg_acquire(...) \
    - __atomic_op_acquire(atomic_cmpxchg, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_cmpxchg_release
    -#define atomic_cmpxchg_release(...) \
    - __atomic_op_release(atomic_cmpxchg, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic_cmpxchg
    -#define atomic_cmpxchg(...) \
    - __atomic_op_fence(atomic_cmpxchg, __VA_ARGS__)
    -#endif
    -#endif /* atomic_cmpxchg_relaxed */
    -
    -#ifndef atomic_try_cmpxchg
    -
    -#define __atomic_try_cmpxchg(type, _p, _po, _n) \
    -({ \
    - typeof(_po) __po = (_po); \
    - typeof(*(_po)) __r, __o = *__po; \
    - __r = atomic_cmpxchg##type((_p), __o, (_n)); \
    - if (unlikely(__r != __o)) \
    - *__po = __r; \
    - likely(__r == __o); \
    -})
    -
    -#define atomic_try_cmpxchg(_p, _po, _n) __atomic_try_cmpxchg(, _p, _po, _n)
    -#define atomic_try_cmpxchg_relaxed(_p, _po, _n) __atomic_try_cmpxchg(_relaxed, _p, _po, _n)
    -#define atomic_try_cmpxchg_acquire(_p, _po, _n) __atomic_try_cmpxchg(_acquire, _p, _po, _n)
    -#define atomic_try_cmpxchg_release(_p, _po, _n) __atomic_try_cmpxchg(_release, _p, _po, _n)
    -
    -#else /* atomic_try_cmpxchg */
    -#define atomic_try_cmpxchg_relaxed atomic_try_cmpxchg
    -#define atomic_try_cmpxchg_acquire atomic_try_cmpxchg
    -#define atomic_try_cmpxchg_release atomic_try_cmpxchg
    -#endif /* atomic_try_cmpxchg */
    -
    -/* cmpxchg_relaxed */
    -#ifndef cmpxchg_relaxed
    -#define cmpxchg_relaxed cmpxchg
    -#define cmpxchg_acquire cmpxchg
    -#define cmpxchg_release cmpxchg
    -
    -#else /* cmpxchg_relaxed */
    -
    -#ifndef cmpxchg_acquire
    -#define cmpxchg_acquire(...) \
    - __atomic_op_acquire(cmpxchg, __VA_ARGS__)
    -#endif
    -
    -#ifndef cmpxchg_release
    -#define cmpxchg_release(...) \
    - __atomic_op_release(cmpxchg, __VA_ARGS__)
    -#endif
    -
    -#ifndef cmpxchg
    -#define cmpxchg(...) \
    - __atomic_op_fence(cmpxchg, __VA_ARGS__)
    -#endif
    -#endif /* cmpxchg_relaxed */
    -
    -/* cmpxchg64_relaxed */
    -#ifndef cmpxchg64_relaxed
    -#define cmpxchg64_relaxed cmpxchg64
    -#define cmpxchg64_acquire cmpxchg64
    -#define cmpxchg64_release cmpxchg64
    -
    -#else /* cmpxchg64_relaxed */
    -
    -#ifndef cmpxchg64_acquire
    -#define cmpxchg64_acquire(...) \
    - __atomic_op_acquire(cmpxchg64, __VA_ARGS__)
    -#endif
    -
    -#ifndef cmpxchg64_release
    -#define cmpxchg64_release(...) \
    - __atomic_op_release(cmpxchg64, __VA_ARGS__)
    -#endif
    -
    -#ifndef cmpxchg64
    -#define cmpxchg64(...) \
    - __atomic_op_fence(cmpxchg64, __VA_ARGS__)
    -#endif
    -#endif /* cmpxchg64_relaxed */
    -
    -/* xchg_relaxed */
    -#ifndef xchg_relaxed
    -#define xchg_relaxed xchg
    -#define xchg_acquire xchg
    -#define xchg_release xchg
    -
    -#else /* xchg_relaxed */
    -
    -#ifndef xchg_acquire
    -#define xchg_acquire(...) __atomic_op_acquire(xchg, __VA_ARGS__)
    -#endif
    -
    -#ifndef xchg_release
    -#define xchg_release(...) __atomic_op_release(xchg, __VA_ARGS__)
    -#endif
    -
    -#ifndef xchg
    -#define xchg(...) __atomic_op_fence(xchg, __VA_ARGS__)
    -#endif
    -#endif /* xchg_relaxed */
    -
    -/**
    - * 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, if @v was not already @u.
    - * Returns the original value of @v.
    - */
    -#ifndef atomic_fetch_add_unless
    -static inline int atomic_fetch_add_unless(atomic_t *v, int a, int u)
    -{
    - int c = atomic_read(v);
    -
    - do {
    - if (unlikely(c == u))
    - break;
    - } while (!atomic_try_cmpxchg(v, &c, c + a));
    -
    - return c;
    -}
    -#endif
    -
    -/**
    - * 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 inline bool atomic_add_unless(atomic_t *v, int a, int u)
    -{
    - return atomic_fetch_add_unless(v, a, u) != u;
    -}
    -
    -/**
    - * 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.
    - */
    -#ifndef atomic_inc_not_zero
    -#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
    -#endif
    -
    -/**
    - * 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.
    - */
    -#ifndef atomic_inc_and_test
    -static inline bool atomic_inc_and_test(atomic_t *v)
    -{
    - return atomic_inc_return(v) == 0;
    -}
    -#endif
    -
    -/**
    - * 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.
    - */
    -#ifndef atomic_dec_and_test
    -static inline bool atomic_dec_and_test(atomic_t *v)
    -{
    - return atomic_dec_return(v) == 0;
    -}
    -#endif
    -
    -/**
    - * 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.
    - */
    -#ifndef atomic_sub_and_test
    -static inline bool atomic_sub_and_test(int i, atomic_t *v)
    -{
    - return atomic_sub_return(i, v) == 0;
    -}
    -#endif
    -
    -/**
    - * 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.
    - */
    -#ifndef atomic_add_negative
    -static inline bool atomic_add_negative(int i, atomic_t *v)
    -{
    - return atomic_add_return(i, v) < 0;
    -}
    -#endif
    -
    -#ifndef atomic_inc_unless_negative
    -static inline bool atomic_inc_unless_negative(atomic_t *v)
    -{
    - int c = atomic_read(v);
    -
    - do {
    - if (unlikely(c < 0))
    - return false;
    - } while (!atomic_try_cmpxchg(v, &c, c + 1));
    -
    - return true;
    -}
    -#endif
    -
    -#ifndef atomic_dec_unless_positive
    -static inline bool atomic_dec_unless_positive(atomic_t *v)
    -{
    - int c = atomic_read(v);
    -
    - do {
    - if (unlikely(c > 0))
    - return false;
    - } while (!atomic_try_cmpxchg(v, &c, c - 1));
    -
    - return true;
    -}
    -#endif
    -
    -/*
    - * atomic_dec_if_positive - decrement by 1 if old value positive
    - * @v: pointer of type atomic_t
    - *
    - * The function returns the old value of *v minus 1, even if
    - * the atomic variable, v, was not decremented.
    - */
    -#ifndef atomic_dec_if_positive
    -static inline int atomic_dec_if_positive(atomic_t *v)
    -{
    - int dec, c = atomic_read(v);
    -
    - do {
    - dec = c - 1;
    - if (unlikely(dec < 0))
    - break;
    - } while (!atomic_try_cmpxchg(v, &c, dec));
    -
    - return dec;
    -}
    -#endif
    -
    -#define atomic_cond_read_relaxed(v, c) smp_cond_load_relaxed(&(v)->counter, (c))
    -#define atomic_cond_read_acquire(v, c) smp_cond_load_acquire(&(v)->counter, (c))
    -
    -#ifdef CONFIG_GENERIC_ATOMIC64
    -#include <asm-generic/atomic64.h>
    -#endif
    -
    -#ifndef atomic64_read_acquire
    -#define atomic64_read_acquire(v) smp_load_acquire(&(v)->counter)
    -#endif
    -
    -#ifndef atomic64_set_release
    -#define atomic64_set_release(v, i) smp_store_release(&(v)->counter, (i))
    -#endif
    -
    -/* atomic64_add_return_relaxed */
    -#ifndef atomic64_add_return_relaxed
    -#define atomic64_add_return_relaxed atomic64_add_return
    -#define atomic64_add_return_acquire atomic64_add_return
    -#define atomic64_add_return_release atomic64_add_return
    -
    -#else /* atomic64_add_return_relaxed */
    -
    -#ifndef atomic64_add_return_acquire
    -#define atomic64_add_return_acquire(...) \
    - __atomic_op_acquire(atomic64_add_return, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_add_return_release
    -#define atomic64_add_return_release(...) \
    - __atomic_op_release(atomic64_add_return, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_add_return
    -#define atomic64_add_return(...) \
    - __atomic_op_fence(atomic64_add_return, __VA_ARGS__)
    -#endif
    -#endif /* atomic64_add_return_relaxed */
    -
    -#ifndef atomic64_inc
    -#define atomic64_inc(v) atomic64_add(1, (v))
    -#endif
    -
    -/* atomic64_inc_return_relaxed */
    -#ifndef atomic64_inc_return_relaxed
    -
    -#ifndef atomic64_inc_return
    -#define atomic64_inc_return(v) atomic64_add_return(1, (v))
    -#define atomic64_inc_return_relaxed(v) atomic64_add_return_relaxed(1, (v))
    -#define atomic64_inc_return_acquire(v) atomic64_add_return_acquire(1, (v))
    -#define atomic64_inc_return_release(v) atomic64_add_return_release(1, (v))
    -#else /* atomic64_inc_return */
    -#define atomic64_inc_return_relaxed atomic64_inc_return
    -#define atomic64_inc_return_acquire atomic64_inc_return
    -#define atomic64_inc_return_release atomic64_inc_return
    -#endif /* atomic64_inc_return */
    -
    -#else /* atomic64_inc_return_relaxed */
    -
    -#ifndef atomic64_inc_return_acquire
    -#define atomic64_inc_return_acquire(...) \
    - __atomic_op_acquire(atomic64_inc_return, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_inc_return_release
    -#define atomic64_inc_return_release(...) \
    - __atomic_op_release(atomic64_inc_return, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_inc_return
    -#define atomic64_inc_return(...) \
    - __atomic_op_fence(atomic64_inc_return, __VA_ARGS__)
    -#endif
    -#endif /* atomic64_inc_return_relaxed */
    -
    -
    -/* atomic64_sub_return_relaxed */
    -#ifndef atomic64_sub_return_relaxed
    -#define atomic64_sub_return_relaxed atomic64_sub_return
    -#define atomic64_sub_return_acquire atomic64_sub_return
    -#define atomic64_sub_return_release atomic64_sub_return
    -
    -#else /* atomic64_sub_return_relaxed */
    -
    -#ifndef atomic64_sub_return_acquire
    -#define atomic64_sub_return_acquire(...) \
    - __atomic_op_acquire(atomic64_sub_return, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_sub_return_release
    -#define atomic64_sub_return_release(...) \
    - __atomic_op_release(atomic64_sub_return, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_sub_return
    -#define atomic64_sub_return(...) \
    - __atomic_op_fence(atomic64_sub_return, __VA_ARGS__)
    -#endif
    -#endif /* atomic64_sub_return_relaxed */
    -
    -#ifndef atomic64_dec
    -#define atomic64_dec(v) atomic64_sub(1, (v))
    -#endif
    -
    -/* atomic64_dec_return_relaxed */
    -#ifndef atomic64_dec_return_relaxed
    -
    -#ifndef atomic64_dec_return
    -#define atomic64_dec_return(v) atomic64_sub_return(1, (v))
    -#define atomic64_dec_return_relaxed(v) atomic64_sub_return_relaxed(1, (v))
    -#define atomic64_dec_return_acquire(v) atomic64_sub_return_acquire(1, (v))
    -#define atomic64_dec_return_release(v) atomic64_sub_return_release(1, (v))
    -#else /* atomic64_dec_return */
    -#define atomic64_dec_return_relaxed atomic64_dec_return
    -#define atomic64_dec_return_acquire atomic64_dec_return
    -#define atomic64_dec_return_release atomic64_dec_return
    -#endif /* atomic64_dec_return */
    -
    -#else /* atomic64_dec_return_relaxed */
    -
    -#ifndef atomic64_dec_return_acquire
    -#define atomic64_dec_return_acquire(...) \
    - __atomic_op_acquire(atomic64_dec_return, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_dec_return_release
    -#define atomic64_dec_return_release(...) \
    - __atomic_op_release(atomic64_dec_return, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_dec_return
    -#define atomic64_dec_return(...) \
    - __atomic_op_fence(atomic64_dec_return, __VA_ARGS__)
    -#endif
    -#endif /* atomic64_dec_return_relaxed */
    -
    -
    -/* atomic64_fetch_add_relaxed */
    -#ifndef atomic64_fetch_add_relaxed
    -#define atomic64_fetch_add_relaxed atomic64_fetch_add
    -#define atomic64_fetch_add_acquire atomic64_fetch_add
    -#define atomic64_fetch_add_release atomic64_fetch_add
    -
    -#else /* atomic64_fetch_add_relaxed */
    -
    -#ifndef atomic64_fetch_add_acquire
    -#define atomic64_fetch_add_acquire(...) \
    - __atomic_op_acquire(atomic64_fetch_add, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_fetch_add_release
    -#define atomic64_fetch_add_release(...) \
    - __atomic_op_release(atomic64_fetch_add, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_fetch_add
    -#define atomic64_fetch_add(...) \
    - __atomic_op_fence(atomic64_fetch_add, __VA_ARGS__)
    -#endif
    -#endif /* atomic64_fetch_add_relaxed */
    -
    -/* atomic64_fetch_inc_relaxed */
    -#ifndef atomic64_fetch_inc_relaxed
    -
    -#ifndef atomic64_fetch_inc
    -#define atomic64_fetch_inc(v) atomic64_fetch_add(1, (v))
    -#define atomic64_fetch_inc_relaxed(v) atomic64_fetch_add_relaxed(1, (v))
    -#define atomic64_fetch_inc_acquire(v) atomic64_fetch_add_acquire(1, (v))
    -#define atomic64_fetch_inc_release(v) atomic64_fetch_add_release(1, (v))
    -#else /* atomic64_fetch_inc */
    -#define atomic64_fetch_inc_relaxed atomic64_fetch_inc
    -#define atomic64_fetch_inc_acquire atomic64_fetch_inc
    -#define atomic64_fetch_inc_release atomic64_fetch_inc
    -#endif /* atomic64_fetch_inc */
    -
    -#else /* atomic64_fetch_inc_relaxed */
    -
    -#ifndef atomic64_fetch_inc_acquire
    -#define atomic64_fetch_inc_acquire(...) \
    - __atomic_op_acquire(atomic64_fetch_inc, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_fetch_inc_release
    -#define atomic64_fetch_inc_release(...) \
    - __atomic_op_release(atomic64_fetch_inc, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_fetch_inc
    -#define atomic64_fetch_inc(...) \
    - __atomic_op_fence(atomic64_fetch_inc, __VA_ARGS__)
    -#endif
    -#endif /* atomic64_fetch_inc_relaxed */
    -
    -/* atomic64_fetch_sub_relaxed */
    -#ifndef atomic64_fetch_sub_relaxed
    -#define atomic64_fetch_sub_relaxed atomic64_fetch_sub
    -#define atomic64_fetch_sub_acquire atomic64_fetch_sub
    -#define atomic64_fetch_sub_release atomic64_fetch_sub
    -
    -#else /* atomic64_fetch_sub_relaxed */
    -
    -#ifndef atomic64_fetch_sub_acquire
    -#define atomic64_fetch_sub_acquire(...) \
    - __atomic_op_acquire(atomic64_fetch_sub, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_fetch_sub_release
    -#define atomic64_fetch_sub_release(...) \
    - __atomic_op_release(atomic64_fetch_sub, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_fetch_sub
    -#define atomic64_fetch_sub(...) \
    - __atomic_op_fence(atomic64_fetch_sub, __VA_ARGS__)
    -#endif
    -#endif /* atomic64_fetch_sub_relaxed */
    -
    -/* atomic64_fetch_dec_relaxed */
    -#ifndef atomic64_fetch_dec_relaxed
    -
    -#ifndef atomic64_fetch_dec
    -#define atomic64_fetch_dec(v) atomic64_fetch_sub(1, (v))
    -#define atomic64_fetch_dec_relaxed(v) atomic64_fetch_sub_relaxed(1, (v))
    -#define atomic64_fetch_dec_acquire(v) atomic64_fetch_sub_acquire(1, (v))
    -#define atomic64_fetch_dec_release(v) atomic64_fetch_sub_release(1, (v))
    -#else /* atomic64_fetch_dec */
    -#define atomic64_fetch_dec_relaxed atomic64_fetch_dec
    -#define atomic64_fetch_dec_acquire atomic64_fetch_dec
    -#define atomic64_fetch_dec_release atomic64_fetch_dec
    -#endif /* atomic64_fetch_dec */
    -
    -#else /* atomic64_fetch_dec_relaxed */
    -
    -#ifndef atomic64_fetch_dec_acquire
    -#define atomic64_fetch_dec_acquire(...) \
    - __atomic_op_acquire(atomic64_fetch_dec, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_fetch_dec_release
    -#define atomic64_fetch_dec_release(...) \
    - __atomic_op_release(atomic64_fetch_dec, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_fetch_dec
    -#define atomic64_fetch_dec(...) \
    - __atomic_op_fence(atomic64_fetch_dec, __VA_ARGS__)
    -#endif
    -#endif /* atomic64_fetch_dec_relaxed */
    -
    -/* atomic64_fetch_or_relaxed */
    -#ifndef atomic64_fetch_or_relaxed
    -#define atomic64_fetch_or_relaxed atomic64_fetch_or
    -#define atomic64_fetch_or_acquire atomic64_fetch_or
    -#define atomic64_fetch_or_release atomic64_fetch_or
    -
    -#else /* atomic64_fetch_or_relaxed */
    -
    -#ifndef atomic64_fetch_or_acquire
    -#define atomic64_fetch_or_acquire(...) \
    - __atomic_op_acquire(atomic64_fetch_or, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_fetch_or_release
    -#define atomic64_fetch_or_release(...) \
    - __atomic_op_release(atomic64_fetch_or, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_fetch_or
    -#define atomic64_fetch_or(...) \
    - __atomic_op_fence(atomic64_fetch_or, __VA_ARGS__)
    -#endif
    -#endif /* atomic64_fetch_or_relaxed */
    -
    -/* atomic64_fetch_and_relaxed */
    -#ifndef atomic64_fetch_and_relaxed
    -#define atomic64_fetch_and_relaxed atomic64_fetch_and
    -#define atomic64_fetch_and_acquire atomic64_fetch_and
    -#define atomic64_fetch_and_release atomic64_fetch_and
    -
    -#else /* atomic64_fetch_and_relaxed */
    -
    -#ifndef atomic64_fetch_and_acquire
    -#define atomic64_fetch_and_acquire(...) \
    - __atomic_op_acquire(atomic64_fetch_and, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_fetch_and_release
    -#define atomic64_fetch_and_release(...) \
    - __atomic_op_release(atomic64_fetch_and, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_fetch_and
    -#define atomic64_fetch_and(...) \
    - __atomic_op_fence(atomic64_fetch_and, __VA_ARGS__)
    -#endif
    -#endif /* atomic64_fetch_and_relaxed */
    -
    -#ifndef atomic64_andnot
    -#define atomic64_andnot(i, v) atomic64_and(~(long long)(i), (v))
    -#endif
    -
    -#ifndef atomic64_fetch_andnot_relaxed
    -
    -#ifndef atomic64_fetch_andnot
    -#define atomic64_fetch_andnot(i, v) atomic64_fetch_and(~(long long)(i), (v))
    -#define atomic64_fetch_andnot_relaxed(i, v) atomic64_fetch_and_relaxed(~(long long)(i), (v))
    -#define atomic64_fetch_andnot_acquire(i, v) atomic64_fetch_and_acquire(~(long long)(i), (v))
    -#define atomic64_fetch_andnot_release(i, v) atomic64_fetch_and_release(~(long long)(i), (v))
    -#else /* atomic64_fetch_andnot */
    -#define atomic64_fetch_andnot_relaxed atomic64_fetch_andnot
    -#define atomic64_fetch_andnot_acquire atomic64_fetch_andnot
    -#define atomic64_fetch_andnot_release atomic64_fetch_andnot
    -#endif /* atomic64_fetch_andnot */
    -
    -#else /* atomic64_fetch_andnot_relaxed */
    -
    -#ifndef atomic64_fetch_andnot_acquire
    -#define atomic64_fetch_andnot_acquire(...) \
    - __atomic_op_acquire(atomic64_fetch_andnot, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_fetch_andnot_release
    -#define atomic64_fetch_andnot_release(...) \
    - __atomic_op_release(atomic64_fetch_andnot, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_fetch_andnot
    -#define atomic64_fetch_andnot(...) \
    - __atomic_op_fence(atomic64_fetch_andnot, __VA_ARGS__)
    -#endif
    -#endif /* atomic64_fetch_andnot_relaxed */
    -
    -/* atomic64_fetch_xor_relaxed */
    -#ifndef atomic64_fetch_xor_relaxed
    -#define atomic64_fetch_xor_relaxed atomic64_fetch_xor
    -#define atomic64_fetch_xor_acquire atomic64_fetch_xor
    -#define atomic64_fetch_xor_release atomic64_fetch_xor
    -
    -#else /* atomic64_fetch_xor_relaxed */
    -
    -#ifndef atomic64_fetch_xor_acquire
    -#define atomic64_fetch_xor_acquire(...) \
    - __atomic_op_acquire(atomic64_fetch_xor, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_fetch_xor_release
    -#define atomic64_fetch_xor_release(...) \
    - __atomic_op_release(atomic64_fetch_xor, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_fetch_xor
    -#define atomic64_fetch_xor(...) \
    - __atomic_op_fence(atomic64_fetch_xor, __VA_ARGS__)
    -#endif
    -#endif /* atomic64_fetch_xor_relaxed */
    -
    -
    -/* atomic64_xchg_relaxed */
    -#ifndef atomic64_xchg_relaxed
    -#define atomic64_xchg_relaxed atomic64_xchg
    -#define atomic64_xchg_acquire atomic64_xchg
    -#define atomic64_xchg_release atomic64_xchg
    -
    -#else /* atomic64_xchg_relaxed */
    -
    -#ifndef atomic64_xchg_acquire
    -#define atomic64_xchg_acquire(...) \
    - __atomic_op_acquire(atomic64_xchg, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_xchg_release
    -#define atomic64_xchg_release(...) \
    - __atomic_op_release(atomic64_xchg, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_xchg
    -#define atomic64_xchg(...) \
    - __atomic_op_fence(atomic64_xchg, __VA_ARGS__)
    -#endif
    -#endif /* atomic64_xchg_relaxed */
    -
    -/* atomic64_cmpxchg_relaxed */
    -#ifndef atomic64_cmpxchg_relaxed
    -#define atomic64_cmpxchg_relaxed atomic64_cmpxchg
    -#define atomic64_cmpxchg_acquire atomic64_cmpxchg
    -#define atomic64_cmpxchg_release atomic64_cmpxchg
    -
    -#else /* atomic64_cmpxchg_relaxed */
    -
    -#ifndef atomic64_cmpxchg_acquire
    -#define atomic64_cmpxchg_acquire(...) \
    - __atomic_op_acquire(atomic64_cmpxchg, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_cmpxchg_release
    -#define atomic64_cmpxchg_release(...) \
    - __atomic_op_release(atomic64_cmpxchg, __VA_ARGS__)
    -#endif
    -
    -#ifndef atomic64_cmpxchg
    -#define atomic64_cmpxchg(...) \
    - __atomic_op_fence(atomic64_cmpxchg, __VA_ARGS__)
    -#endif
    -#endif /* atomic64_cmpxchg_relaxed */
    -
    -#ifndef atomic64_try_cmpxchg
    -
    -#define __atomic64_try_cmpxchg(type, _p, _po, _n) \
    -({ \
    - typeof(_po) __po = (_po); \
    - typeof(*(_po)) __r, __o = *__po; \
    - __r = atomic64_cmpxchg##type((_p), __o, (_n)); \
    - if (unlikely(__r != __o)) \
    - *__po = __r; \
    - likely(__r == __o); \
    -})
    -
    -#define atomic64_try_cmpxchg(_p, _po, _n) __atomic64_try_cmpxchg(, _p, _po, _n)
    -#define atomic64_try_cmpxchg_relaxed(_p, _po, _n) __atomic64_try_cmpxchg(_relaxed, _p, _po, _n)
    -#define atomic64_try_cmpxchg_acquire(_p, _po, _n) __atomic64_try_cmpxchg(_acquire, _p, _po, _n)
    -#define atomic64_try_cmpxchg_release(_p, _po, _n) __atomic64_try_cmpxchg(_release, _p, _po, _n)
    -
    -#else /* atomic64_try_cmpxchg */
    -#define atomic64_try_cmpxchg_relaxed atomic64_try_cmpxchg
    -#define atomic64_try_cmpxchg_acquire atomic64_try_cmpxchg
    -#define atomic64_try_cmpxchg_release atomic64_try_cmpxchg
    -#endif /* atomic64_try_cmpxchg */
    -
    -/**
    - * 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, if @v was not already @u.
    - * Returns the original value of @v.
    - */
    -#ifndef atomic64_fetch_add_unless
    -static inline long long atomic64_fetch_add_unless(atomic64_t *v, long long a,
    - long long u)
    -{
    - long long c = atomic64_read(v);
    -
    - do {
    - if (unlikely(c == u))
    - break;
    - } while (!atomic64_try_cmpxchg(v, &c, c + a));
    -
    - return c;
    -}
    -#endif
    -
    -/**
    - * atomic64_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 inline bool atomic64_add_unless(atomic64_t *v, long long a, long long u)
    -{
    - return atomic64_fetch_add_unless(v, a, u) != u;
    -}
    -
    -/**
    - * 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.
    - */
    -#ifndef atomic64_inc_not_zero
    -#define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
    -#endif
    -
    -/**
    - * 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.
    - */
    -#ifndef atomic64_inc_and_test
    -static inline bool atomic64_inc_and_test(atomic64_t *v)
    -{
    - return atomic64_inc_return(v) == 0;
    -}
    -#endif
    -
    -/**
    - * 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.
    - */
    -#ifndef atomic64_dec_and_test
    -static inline bool atomic64_dec_and_test(atomic64_t *v)
    -{
    - return atomic64_dec_return(v) == 0;
    -}
    -#endif
    -
    -/**
    - * 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.
    - */
    -#ifndef atomic64_sub_and_test
    -static inline bool atomic64_sub_and_test(long long i, atomic64_t *v)
    -{
    - return atomic64_sub_return(i, v) == 0;
    -}
    -#endif
    -
    -/**
    - * 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.
    - */
    -#ifndef atomic64_add_negative
    -static inline bool atomic64_add_negative(long long i, atomic64_t *v)
    -{
    - return atomic64_add_return(i, v) < 0;
    -}
    -#endif
    -
    -#ifndef atomic64_inc_unless_negative
    -static inline bool atomic64_inc_unless_negative(atomic64_t *v)
    -{
    - long long c = atomic64_read(v);
    -
    - do {
    - if (unlikely(c < 0))
    - return false;
    - } while (!atomic64_try_cmpxchg(v, &c, c + 1));
    -
    - return true;
    -}
    -#endif
    -
    -#ifndef atomic64_dec_unless_positive
    -static inline bool atomic64_dec_unless_positive(atomic64_t *v)
    -{
    - long long c = atomic64_read(v);
    -
    - do {
    - if (unlikely(c > 0))
    - return false;
    - } while (!atomic64_try_cmpxchg(v, &c, c - 1));
    -
    - return true;
    -}
    -#endif
    -
    -/*
    - * atomic64_dec_if_positive - decrement by 1 if old value positive
    - * @v: pointer of type atomic64_t
    - *
    - * The function returns the old value of *v minus 1, even if
    - * the atomic64 variable, v, was not decremented.
    - */
    -#ifndef atomic64_dec_if_positive
    -static inline long long atomic64_dec_if_positive(atomic64_t *v)
    -{
    - long long dec, c = atomic64_read(v);
    -
    - do {
    - dec = c - 1;
    - if (unlikely(dec < 0))
    - break;
    - } while (!atomic64_try_cmpxchg(v, &c, dec));
    -
    - return dec;
    -}
    -#endif
    -
    -#define atomic64_cond_read_relaxed(v, c) smp_cond_load_relaxed(&(v)->counter, (c))
    -#define atomic64_cond_read_acquire(v, c) smp_cond_load_acquire(&(v)->counter, (c))
    +#include <linux/atomic-fallback.h>

    #include <asm-generic/atomic-long.h>

    --
    2.11.0
    \
     
     \ /
      Last update: 2018-07-16 13:32    [W:5.736 / U:0.264 seconds]
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