linux-stable/include/linux/atomic-arch-fallback.h
Peter Zijlstra 37f8173dd8 locking/atomics: Flip fallbacks and instrumentation
Currently instrumentation of atomic primitives is done at the architecture
level, while composites or fallbacks are provided at the generic level.

The result is that there are no uninstrumented variants of the
fallbacks. Since there is now need of such variants to isolate text poke
from any form of instrumentation invert this ordering.

Doing this means moving the instrumentation into the generic code as
well as having (for now) two variants of the fallbacks.

Notes:

 - the various *cond_read* primitives are not proper fallbacks
   and got moved into linux/atomic.c. No arch_ variants are
   generated because the base primitives smp_cond_load*()
   are instrumented.

 - once all architectures are moved over to arch_atomic_ one of the
   fallback variants can be removed and some 2300 lines reclaimed.

 - atomic_{read,set}*() are no longer double-instrumented

Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lkml.kernel.org/r/20200505134058.769149955@linutronix.de
2020-06-11 08:03:24 +02:00

2291 lines
59 KiB
C

// 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
#include <linux/compiler.h>
#ifndef arch_xchg_relaxed
#define arch_xchg_relaxed arch_xchg
#define arch_xchg_acquire arch_xchg
#define arch_xchg_release arch_xchg
#else /* arch_xchg_relaxed */
#ifndef arch_xchg_acquire
#define arch_xchg_acquire(...) \
__atomic_op_acquire(arch_xchg, __VA_ARGS__)
#endif
#ifndef arch_xchg_release
#define arch_xchg_release(...) \
__atomic_op_release(arch_xchg, __VA_ARGS__)
#endif
#ifndef arch_xchg
#define arch_xchg(...) \
__atomic_op_fence(arch_xchg, __VA_ARGS__)
#endif
#endif /* arch_xchg_relaxed */
#ifndef arch_cmpxchg_relaxed
#define arch_cmpxchg_relaxed arch_cmpxchg
#define arch_cmpxchg_acquire arch_cmpxchg
#define arch_cmpxchg_release arch_cmpxchg
#else /* arch_cmpxchg_relaxed */
#ifndef arch_cmpxchg_acquire
#define arch_cmpxchg_acquire(...) \
__atomic_op_acquire(arch_cmpxchg, __VA_ARGS__)
#endif
#ifndef arch_cmpxchg_release
#define arch_cmpxchg_release(...) \
__atomic_op_release(arch_cmpxchg, __VA_ARGS__)
#endif
#ifndef arch_cmpxchg
#define arch_cmpxchg(...) \
__atomic_op_fence(arch_cmpxchg, __VA_ARGS__)
#endif
#endif /* arch_cmpxchg_relaxed */
#ifndef arch_cmpxchg64_relaxed
#define arch_cmpxchg64_relaxed arch_cmpxchg64
#define arch_cmpxchg64_acquire arch_cmpxchg64
#define arch_cmpxchg64_release arch_cmpxchg64
#else /* arch_cmpxchg64_relaxed */
#ifndef arch_cmpxchg64_acquire
#define arch_cmpxchg64_acquire(...) \
__atomic_op_acquire(arch_cmpxchg64, __VA_ARGS__)
#endif
#ifndef arch_cmpxchg64_release
#define arch_cmpxchg64_release(...) \
__atomic_op_release(arch_cmpxchg64, __VA_ARGS__)
#endif
#ifndef arch_cmpxchg64
#define arch_cmpxchg64(...) \
__atomic_op_fence(arch_cmpxchg64, __VA_ARGS__)
#endif
#endif /* arch_cmpxchg64_relaxed */
#ifndef arch_atomic_read_acquire
static __always_inline int
arch_atomic_read_acquire(const atomic_t *v)
{
return smp_load_acquire(&(v)->counter);
}
#define arch_atomic_read_acquire arch_atomic_read_acquire
#endif
#ifndef arch_atomic_set_release
static __always_inline void
arch_atomic_set_release(atomic_t *v, int i)
{
smp_store_release(&(v)->counter, i);
}
#define arch_atomic_set_release arch_atomic_set_release
#endif
#ifndef arch_atomic_add_return_relaxed
#define arch_atomic_add_return_acquire arch_atomic_add_return
#define arch_atomic_add_return_release arch_atomic_add_return
#define arch_atomic_add_return_relaxed arch_atomic_add_return
#else /* arch_atomic_add_return_relaxed */
#ifndef arch_atomic_add_return_acquire
static __always_inline int
arch_atomic_add_return_acquire(int i, atomic_t *v)
{
int ret = arch_atomic_add_return_relaxed(i, v);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic_add_return_acquire arch_atomic_add_return_acquire
#endif
#ifndef arch_atomic_add_return_release
static __always_inline int
arch_atomic_add_return_release(int i, atomic_t *v)
{
__atomic_release_fence();
return arch_atomic_add_return_relaxed(i, v);
}
#define arch_atomic_add_return_release arch_atomic_add_return_release
#endif
#ifndef arch_atomic_add_return
static __always_inline int
arch_atomic_add_return(int i, atomic_t *v)
{
int ret;
__atomic_pre_full_fence();
ret = arch_atomic_add_return_relaxed(i, v);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic_add_return arch_atomic_add_return
#endif
#endif /* arch_atomic_add_return_relaxed */
#ifndef arch_atomic_fetch_add_relaxed
#define arch_atomic_fetch_add_acquire arch_atomic_fetch_add
#define arch_atomic_fetch_add_release arch_atomic_fetch_add
#define arch_atomic_fetch_add_relaxed arch_atomic_fetch_add
#else /* arch_atomic_fetch_add_relaxed */
#ifndef arch_atomic_fetch_add_acquire
static __always_inline int
arch_atomic_fetch_add_acquire(int i, atomic_t *v)
{
int ret = arch_atomic_fetch_add_relaxed(i, v);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic_fetch_add_acquire arch_atomic_fetch_add_acquire
#endif
#ifndef arch_atomic_fetch_add_release
static __always_inline int
arch_atomic_fetch_add_release(int i, atomic_t *v)
{
__atomic_release_fence();
return arch_atomic_fetch_add_relaxed(i, v);
}
#define arch_atomic_fetch_add_release arch_atomic_fetch_add_release
#endif
#ifndef arch_atomic_fetch_add
static __always_inline int
arch_atomic_fetch_add(int i, atomic_t *v)
{
int ret;
__atomic_pre_full_fence();
ret = arch_atomic_fetch_add_relaxed(i, v);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic_fetch_add arch_atomic_fetch_add
#endif
#endif /* arch_atomic_fetch_add_relaxed */
#ifndef arch_atomic_sub_return_relaxed
#define arch_atomic_sub_return_acquire arch_atomic_sub_return
#define arch_atomic_sub_return_release arch_atomic_sub_return
#define arch_atomic_sub_return_relaxed arch_atomic_sub_return
#else /* arch_atomic_sub_return_relaxed */
#ifndef arch_atomic_sub_return_acquire
static __always_inline int
arch_atomic_sub_return_acquire(int i, atomic_t *v)
{
int ret = arch_atomic_sub_return_relaxed(i, v);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic_sub_return_acquire arch_atomic_sub_return_acquire
#endif
#ifndef arch_atomic_sub_return_release
static __always_inline int
arch_atomic_sub_return_release(int i, atomic_t *v)
{
__atomic_release_fence();
return arch_atomic_sub_return_relaxed(i, v);
}
#define arch_atomic_sub_return_release arch_atomic_sub_return_release
#endif
#ifndef arch_atomic_sub_return
static __always_inline int
arch_atomic_sub_return(int i, atomic_t *v)
{
int ret;
__atomic_pre_full_fence();
ret = arch_atomic_sub_return_relaxed(i, v);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic_sub_return arch_atomic_sub_return
#endif
#endif /* arch_atomic_sub_return_relaxed */
#ifndef arch_atomic_fetch_sub_relaxed
#define arch_atomic_fetch_sub_acquire arch_atomic_fetch_sub
#define arch_atomic_fetch_sub_release arch_atomic_fetch_sub
#define arch_atomic_fetch_sub_relaxed arch_atomic_fetch_sub
#else /* arch_atomic_fetch_sub_relaxed */
#ifndef arch_atomic_fetch_sub_acquire
static __always_inline int
arch_atomic_fetch_sub_acquire(int i, atomic_t *v)
{
int ret = arch_atomic_fetch_sub_relaxed(i, v);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic_fetch_sub_acquire arch_atomic_fetch_sub_acquire
#endif
#ifndef arch_atomic_fetch_sub_release
static __always_inline int
arch_atomic_fetch_sub_release(int i, atomic_t *v)
{
__atomic_release_fence();
return arch_atomic_fetch_sub_relaxed(i, v);
}
#define arch_atomic_fetch_sub_release arch_atomic_fetch_sub_release
#endif
#ifndef arch_atomic_fetch_sub
static __always_inline int
arch_atomic_fetch_sub(int i, atomic_t *v)
{
int ret;
__atomic_pre_full_fence();
ret = arch_atomic_fetch_sub_relaxed(i, v);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic_fetch_sub arch_atomic_fetch_sub
#endif
#endif /* arch_atomic_fetch_sub_relaxed */
#ifndef arch_atomic_inc
static __always_inline void
arch_atomic_inc(atomic_t *v)
{
arch_atomic_add(1, v);
}
#define arch_atomic_inc arch_atomic_inc
#endif
#ifndef arch_atomic_inc_return_relaxed
#ifdef arch_atomic_inc_return
#define arch_atomic_inc_return_acquire arch_atomic_inc_return
#define arch_atomic_inc_return_release arch_atomic_inc_return
#define arch_atomic_inc_return_relaxed arch_atomic_inc_return
#endif /* arch_atomic_inc_return */
#ifndef arch_atomic_inc_return
static __always_inline int
arch_atomic_inc_return(atomic_t *v)
{
return arch_atomic_add_return(1, v);
}
#define arch_atomic_inc_return arch_atomic_inc_return
#endif
#ifndef arch_atomic_inc_return_acquire
static __always_inline int
arch_atomic_inc_return_acquire(atomic_t *v)
{
return arch_atomic_add_return_acquire(1, v);
}
#define arch_atomic_inc_return_acquire arch_atomic_inc_return_acquire
#endif
#ifndef arch_atomic_inc_return_release
static __always_inline int
arch_atomic_inc_return_release(atomic_t *v)
{
return arch_atomic_add_return_release(1, v);
}
#define arch_atomic_inc_return_release arch_atomic_inc_return_release
#endif
#ifndef arch_atomic_inc_return_relaxed
static __always_inline int
arch_atomic_inc_return_relaxed(atomic_t *v)
{
return arch_atomic_add_return_relaxed(1, v);
}
#define arch_atomic_inc_return_relaxed arch_atomic_inc_return_relaxed
#endif
#else /* arch_atomic_inc_return_relaxed */
#ifndef arch_atomic_inc_return_acquire
static __always_inline int
arch_atomic_inc_return_acquire(atomic_t *v)
{
int ret = arch_atomic_inc_return_relaxed(v);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic_inc_return_acquire arch_atomic_inc_return_acquire
#endif
#ifndef arch_atomic_inc_return_release
static __always_inline int
arch_atomic_inc_return_release(atomic_t *v)
{
__atomic_release_fence();
return arch_atomic_inc_return_relaxed(v);
}
#define arch_atomic_inc_return_release arch_atomic_inc_return_release
#endif
#ifndef arch_atomic_inc_return
static __always_inline int
arch_atomic_inc_return(atomic_t *v)
{
int ret;
__atomic_pre_full_fence();
ret = arch_atomic_inc_return_relaxed(v);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic_inc_return arch_atomic_inc_return
#endif
#endif /* arch_atomic_inc_return_relaxed */
#ifndef arch_atomic_fetch_inc_relaxed
#ifdef arch_atomic_fetch_inc
#define arch_atomic_fetch_inc_acquire arch_atomic_fetch_inc
#define arch_atomic_fetch_inc_release arch_atomic_fetch_inc
#define arch_atomic_fetch_inc_relaxed arch_atomic_fetch_inc
#endif /* arch_atomic_fetch_inc */
#ifndef arch_atomic_fetch_inc
static __always_inline int
arch_atomic_fetch_inc(atomic_t *v)
{
return arch_atomic_fetch_add(1, v);
}
#define arch_atomic_fetch_inc arch_atomic_fetch_inc
#endif
#ifndef arch_atomic_fetch_inc_acquire
static __always_inline int
arch_atomic_fetch_inc_acquire(atomic_t *v)
{
return arch_atomic_fetch_add_acquire(1, v);
}
#define arch_atomic_fetch_inc_acquire arch_atomic_fetch_inc_acquire
#endif
#ifndef arch_atomic_fetch_inc_release
static __always_inline int
arch_atomic_fetch_inc_release(atomic_t *v)
{
return arch_atomic_fetch_add_release(1, v);
}
#define arch_atomic_fetch_inc_release arch_atomic_fetch_inc_release
#endif
#ifndef arch_atomic_fetch_inc_relaxed
static __always_inline int
arch_atomic_fetch_inc_relaxed(atomic_t *v)
{
return arch_atomic_fetch_add_relaxed(1, v);
}
#define arch_atomic_fetch_inc_relaxed arch_atomic_fetch_inc_relaxed
#endif
#else /* arch_atomic_fetch_inc_relaxed */
#ifndef arch_atomic_fetch_inc_acquire
static __always_inline int
arch_atomic_fetch_inc_acquire(atomic_t *v)
{
int ret = arch_atomic_fetch_inc_relaxed(v);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic_fetch_inc_acquire arch_atomic_fetch_inc_acquire
#endif
#ifndef arch_atomic_fetch_inc_release
static __always_inline int
arch_atomic_fetch_inc_release(atomic_t *v)
{
__atomic_release_fence();
return arch_atomic_fetch_inc_relaxed(v);
}
#define arch_atomic_fetch_inc_release arch_atomic_fetch_inc_release
#endif
#ifndef arch_atomic_fetch_inc
static __always_inline int
arch_atomic_fetch_inc(atomic_t *v)
{
int ret;
__atomic_pre_full_fence();
ret = arch_atomic_fetch_inc_relaxed(v);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic_fetch_inc arch_atomic_fetch_inc
#endif
#endif /* arch_atomic_fetch_inc_relaxed */
#ifndef arch_atomic_dec
static __always_inline void
arch_atomic_dec(atomic_t *v)
{
arch_atomic_sub(1, v);
}
#define arch_atomic_dec arch_atomic_dec
#endif
#ifndef arch_atomic_dec_return_relaxed
#ifdef arch_atomic_dec_return
#define arch_atomic_dec_return_acquire arch_atomic_dec_return
#define arch_atomic_dec_return_release arch_atomic_dec_return
#define arch_atomic_dec_return_relaxed arch_atomic_dec_return
#endif /* arch_atomic_dec_return */
#ifndef arch_atomic_dec_return
static __always_inline int
arch_atomic_dec_return(atomic_t *v)
{
return arch_atomic_sub_return(1, v);
}
#define arch_atomic_dec_return arch_atomic_dec_return
#endif
#ifndef arch_atomic_dec_return_acquire
static __always_inline int
arch_atomic_dec_return_acquire(atomic_t *v)
{
return arch_atomic_sub_return_acquire(1, v);
}
#define arch_atomic_dec_return_acquire arch_atomic_dec_return_acquire
#endif
#ifndef arch_atomic_dec_return_release
static __always_inline int
arch_atomic_dec_return_release(atomic_t *v)
{
return arch_atomic_sub_return_release(1, v);
}
#define arch_atomic_dec_return_release arch_atomic_dec_return_release
#endif
#ifndef arch_atomic_dec_return_relaxed
static __always_inline int
arch_atomic_dec_return_relaxed(atomic_t *v)
{
return arch_atomic_sub_return_relaxed(1, v);
}
#define arch_atomic_dec_return_relaxed arch_atomic_dec_return_relaxed
#endif
#else /* arch_atomic_dec_return_relaxed */
#ifndef arch_atomic_dec_return_acquire
static __always_inline int
arch_atomic_dec_return_acquire(atomic_t *v)
{
int ret = arch_atomic_dec_return_relaxed(v);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic_dec_return_acquire arch_atomic_dec_return_acquire
#endif
#ifndef arch_atomic_dec_return_release
static __always_inline int
arch_atomic_dec_return_release(atomic_t *v)
{
__atomic_release_fence();
return arch_atomic_dec_return_relaxed(v);
}
#define arch_atomic_dec_return_release arch_atomic_dec_return_release
#endif
#ifndef arch_atomic_dec_return
static __always_inline int
arch_atomic_dec_return(atomic_t *v)
{
int ret;
__atomic_pre_full_fence();
ret = arch_atomic_dec_return_relaxed(v);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic_dec_return arch_atomic_dec_return
#endif
#endif /* arch_atomic_dec_return_relaxed */
#ifndef arch_atomic_fetch_dec_relaxed
#ifdef arch_atomic_fetch_dec
#define arch_atomic_fetch_dec_acquire arch_atomic_fetch_dec
#define arch_atomic_fetch_dec_release arch_atomic_fetch_dec
#define arch_atomic_fetch_dec_relaxed arch_atomic_fetch_dec
#endif /* arch_atomic_fetch_dec */
#ifndef arch_atomic_fetch_dec
static __always_inline int
arch_atomic_fetch_dec(atomic_t *v)
{
return arch_atomic_fetch_sub(1, v);
}
#define arch_atomic_fetch_dec arch_atomic_fetch_dec
#endif
#ifndef arch_atomic_fetch_dec_acquire
static __always_inline int
arch_atomic_fetch_dec_acquire(atomic_t *v)
{
return arch_atomic_fetch_sub_acquire(1, v);
}
#define arch_atomic_fetch_dec_acquire arch_atomic_fetch_dec_acquire
#endif
#ifndef arch_atomic_fetch_dec_release
static __always_inline int
arch_atomic_fetch_dec_release(atomic_t *v)
{
return arch_atomic_fetch_sub_release(1, v);
}
#define arch_atomic_fetch_dec_release arch_atomic_fetch_dec_release
#endif
#ifndef arch_atomic_fetch_dec_relaxed
static __always_inline int
arch_atomic_fetch_dec_relaxed(atomic_t *v)
{
return arch_atomic_fetch_sub_relaxed(1, v);
}
#define arch_atomic_fetch_dec_relaxed arch_atomic_fetch_dec_relaxed
#endif
#else /* arch_atomic_fetch_dec_relaxed */
#ifndef arch_atomic_fetch_dec_acquire
static __always_inline int
arch_atomic_fetch_dec_acquire(atomic_t *v)
{
int ret = arch_atomic_fetch_dec_relaxed(v);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic_fetch_dec_acquire arch_atomic_fetch_dec_acquire
#endif
#ifndef arch_atomic_fetch_dec_release
static __always_inline int
arch_atomic_fetch_dec_release(atomic_t *v)
{
__atomic_release_fence();
return arch_atomic_fetch_dec_relaxed(v);
}
#define arch_atomic_fetch_dec_release arch_atomic_fetch_dec_release
#endif
#ifndef arch_atomic_fetch_dec
static __always_inline int
arch_atomic_fetch_dec(atomic_t *v)
{
int ret;
__atomic_pre_full_fence();
ret = arch_atomic_fetch_dec_relaxed(v);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic_fetch_dec arch_atomic_fetch_dec
#endif
#endif /* arch_atomic_fetch_dec_relaxed */
#ifndef arch_atomic_fetch_and_relaxed
#define arch_atomic_fetch_and_acquire arch_atomic_fetch_and
#define arch_atomic_fetch_and_release arch_atomic_fetch_and
#define arch_atomic_fetch_and_relaxed arch_atomic_fetch_and
#else /* arch_atomic_fetch_and_relaxed */
#ifndef arch_atomic_fetch_and_acquire
static __always_inline int
arch_atomic_fetch_and_acquire(int i, atomic_t *v)
{
int ret = arch_atomic_fetch_and_relaxed(i, v);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic_fetch_and_acquire arch_atomic_fetch_and_acquire
#endif
#ifndef arch_atomic_fetch_and_release
static __always_inline int
arch_atomic_fetch_and_release(int i, atomic_t *v)
{
__atomic_release_fence();
return arch_atomic_fetch_and_relaxed(i, v);
}
#define arch_atomic_fetch_and_release arch_atomic_fetch_and_release
#endif
#ifndef arch_atomic_fetch_and
static __always_inline int
arch_atomic_fetch_and(int i, atomic_t *v)
{
int ret;
__atomic_pre_full_fence();
ret = arch_atomic_fetch_and_relaxed(i, v);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic_fetch_and arch_atomic_fetch_and
#endif
#endif /* arch_atomic_fetch_and_relaxed */
#ifndef arch_atomic_andnot
static __always_inline void
arch_atomic_andnot(int i, atomic_t *v)
{
arch_atomic_and(~i, v);
}
#define arch_atomic_andnot arch_atomic_andnot
#endif
#ifndef arch_atomic_fetch_andnot_relaxed
#ifdef arch_atomic_fetch_andnot
#define arch_atomic_fetch_andnot_acquire arch_atomic_fetch_andnot
#define arch_atomic_fetch_andnot_release arch_atomic_fetch_andnot
#define arch_atomic_fetch_andnot_relaxed arch_atomic_fetch_andnot
#endif /* arch_atomic_fetch_andnot */
#ifndef arch_atomic_fetch_andnot
static __always_inline int
arch_atomic_fetch_andnot(int i, atomic_t *v)
{
return arch_atomic_fetch_and(~i, v);
}
#define arch_atomic_fetch_andnot arch_atomic_fetch_andnot
#endif
#ifndef arch_atomic_fetch_andnot_acquire
static __always_inline int
arch_atomic_fetch_andnot_acquire(int i, atomic_t *v)
{
return arch_atomic_fetch_and_acquire(~i, v);
}
#define arch_atomic_fetch_andnot_acquire arch_atomic_fetch_andnot_acquire
#endif
#ifndef arch_atomic_fetch_andnot_release
static __always_inline int
arch_atomic_fetch_andnot_release(int i, atomic_t *v)
{
return arch_atomic_fetch_and_release(~i, v);
}
#define arch_atomic_fetch_andnot_release arch_atomic_fetch_andnot_release
#endif
#ifndef arch_atomic_fetch_andnot_relaxed
static __always_inline int
arch_atomic_fetch_andnot_relaxed(int i, atomic_t *v)
{
return arch_atomic_fetch_and_relaxed(~i, v);
}
#define arch_atomic_fetch_andnot_relaxed arch_atomic_fetch_andnot_relaxed
#endif
#else /* arch_atomic_fetch_andnot_relaxed */
#ifndef arch_atomic_fetch_andnot_acquire
static __always_inline int
arch_atomic_fetch_andnot_acquire(int i, atomic_t *v)
{
int ret = arch_atomic_fetch_andnot_relaxed(i, v);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic_fetch_andnot_acquire arch_atomic_fetch_andnot_acquire
#endif
#ifndef arch_atomic_fetch_andnot_release
static __always_inline int
arch_atomic_fetch_andnot_release(int i, atomic_t *v)
{
__atomic_release_fence();
return arch_atomic_fetch_andnot_relaxed(i, v);
}
#define arch_atomic_fetch_andnot_release arch_atomic_fetch_andnot_release
#endif
#ifndef arch_atomic_fetch_andnot
static __always_inline int
arch_atomic_fetch_andnot(int i, atomic_t *v)
{
int ret;
__atomic_pre_full_fence();
ret = arch_atomic_fetch_andnot_relaxed(i, v);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic_fetch_andnot arch_atomic_fetch_andnot
#endif
#endif /* arch_atomic_fetch_andnot_relaxed */
#ifndef arch_atomic_fetch_or_relaxed
#define arch_atomic_fetch_or_acquire arch_atomic_fetch_or
#define arch_atomic_fetch_or_release arch_atomic_fetch_or
#define arch_atomic_fetch_or_relaxed arch_atomic_fetch_or
#else /* arch_atomic_fetch_or_relaxed */
#ifndef arch_atomic_fetch_or_acquire
static __always_inline int
arch_atomic_fetch_or_acquire(int i, atomic_t *v)
{
int ret = arch_atomic_fetch_or_relaxed(i, v);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic_fetch_or_acquire arch_atomic_fetch_or_acquire
#endif
#ifndef arch_atomic_fetch_or_release
static __always_inline int
arch_atomic_fetch_or_release(int i, atomic_t *v)
{
__atomic_release_fence();
return arch_atomic_fetch_or_relaxed(i, v);
}
#define arch_atomic_fetch_or_release arch_atomic_fetch_or_release
#endif
#ifndef arch_atomic_fetch_or
static __always_inline int
arch_atomic_fetch_or(int i, atomic_t *v)
{
int ret;
__atomic_pre_full_fence();
ret = arch_atomic_fetch_or_relaxed(i, v);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic_fetch_or arch_atomic_fetch_or
#endif
#endif /* arch_atomic_fetch_or_relaxed */
#ifndef arch_atomic_fetch_xor_relaxed
#define arch_atomic_fetch_xor_acquire arch_atomic_fetch_xor
#define arch_atomic_fetch_xor_release arch_atomic_fetch_xor
#define arch_atomic_fetch_xor_relaxed arch_atomic_fetch_xor
#else /* arch_atomic_fetch_xor_relaxed */
#ifndef arch_atomic_fetch_xor_acquire
static __always_inline int
arch_atomic_fetch_xor_acquire(int i, atomic_t *v)
{
int ret = arch_atomic_fetch_xor_relaxed(i, v);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic_fetch_xor_acquire arch_atomic_fetch_xor_acquire
#endif
#ifndef arch_atomic_fetch_xor_release
static __always_inline int
arch_atomic_fetch_xor_release(int i, atomic_t *v)
{
__atomic_release_fence();
return arch_atomic_fetch_xor_relaxed(i, v);
}
#define arch_atomic_fetch_xor_release arch_atomic_fetch_xor_release
#endif
#ifndef arch_atomic_fetch_xor
static __always_inline int
arch_atomic_fetch_xor(int i, atomic_t *v)
{
int ret;
__atomic_pre_full_fence();
ret = arch_atomic_fetch_xor_relaxed(i, v);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic_fetch_xor arch_atomic_fetch_xor
#endif
#endif /* arch_atomic_fetch_xor_relaxed */
#ifndef arch_atomic_xchg_relaxed
#define arch_atomic_xchg_acquire arch_atomic_xchg
#define arch_atomic_xchg_release arch_atomic_xchg
#define arch_atomic_xchg_relaxed arch_atomic_xchg
#else /* arch_atomic_xchg_relaxed */
#ifndef arch_atomic_xchg_acquire
static __always_inline int
arch_atomic_xchg_acquire(atomic_t *v, int i)
{
int ret = arch_atomic_xchg_relaxed(v, i);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic_xchg_acquire arch_atomic_xchg_acquire
#endif
#ifndef arch_atomic_xchg_release
static __always_inline int
arch_atomic_xchg_release(atomic_t *v, int i)
{
__atomic_release_fence();
return arch_atomic_xchg_relaxed(v, i);
}
#define arch_atomic_xchg_release arch_atomic_xchg_release
#endif
#ifndef arch_atomic_xchg
static __always_inline int
arch_atomic_xchg(atomic_t *v, int i)
{
int ret;
__atomic_pre_full_fence();
ret = arch_atomic_xchg_relaxed(v, i);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic_xchg arch_atomic_xchg
#endif
#endif /* arch_atomic_xchg_relaxed */
#ifndef arch_atomic_cmpxchg_relaxed
#define arch_atomic_cmpxchg_acquire arch_atomic_cmpxchg
#define arch_atomic_cmpxchg_release arch_atomic_cmpxchg
#define arch_atomic_cmpxchg_relaxed arch_atomic_cmpxchg
#else /* arch_atomic_cmpxchg_relaxed */
#ifndef arch_atomic_cmpxchg_acquire
static __always_inline int
arch_atomic_cmpxchg_acquire(atomic_t *v, int old, int new)
{
int ret = arch_atomic_cmpxchg_relaxed(v, old, new);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic_cmpxchg_acquire arch_atomic_cmpxchg_acquire
#endif
#ifndef arch_atomic_cmpxchg_release
static __always_inline int
arch_atomic_cmpxchg_release(atomic_t *v, int old, int new)
{
__atomic_release_fence();
return arch_atomic_cmpxchg_relaxed(v, old, new);
}
#define arch_atomic_cmpxchg_release arch_atomic_cmpxchg_release
#endif
#ifndef arch_atomic_cmpxchg
static __always_inline int
arch_atomic_cmpxchg(atomic_t *v, int old, int new)
{
int ret;
__atomic_pre_full_fence();
ret = arch_atomic_cmpxchg_relaxed(v, old, new);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic_cmpxchg arch_atomic_cmpxchg
#endif
#endif /* arch_atomic_cmpxchg_relaxed */
#ifndef arch_atomic_try_cmpxchg_relaxed
#ifdef arch_atomic_try_cmpxchg
#define arch_atomic_try_cmpxchg_acquire arch_atomic_try_cmpxchg
#define arch_atomic_try_cmpxchg_release arch_atomic_try_cmpxchg
#define arch_atomic_try_cmpxchg_relaxed arch_atomic_try_cmpxchg
#endif /* arch_atomic_try_cmpxchg */
#ifndef arch_atomic_try_cmpxchg
static __always_inline bool
arch_atomic_try_cmpxchg(atomic_t *v, int *old, int new)
{
int r, o = *old;
r = arch_atomic_cmpxchg(v, o, new);
if (unlikely(r != o))
*old = r;
return likely(r == o);
}
#define arch_atomic_try_cmpxchg arch_atomic_try_cmpxchg
#endif
#ifndef arch_atomic_try_cmpxchg_acquire
static __always_inline bool
arch_atomic_try_cmpxchg_acquire(atomic_t *v, int *old, int new)
{
int r, o = *old;
r = arch_atomic_cmpxchg_acquire(v, o, new);
if (unlikely(r != o))
*old = r;
return likely(r == o);
}
#define arch_atomic_try_cmpxchg_acquire arch_atomic_try_cmpxchg_acquire
#endif
#ifndef arch_atomic_try_cmpxchg_release
static __always_inline bool
arch_atomic_try_cmpxchg_release(atomic_t *v, int *old, int new)
{
int r, o = *old;
r = arch_atomic_cmpxchg_release(v, o, new);
if (unlikely(r != o))
*old = r;
return likely(r == o);
}
#define arch_atomic_try_cmpxchg_release arch_atomic_try_cmpxchg_release
#endif
#ifndef arch_atomic_try_cmpxchg_relaxed
static __always_inline bool
arch_atomic_try_cmpxchg_relaxed(atomic_t *v, int *old, int new)
{
int r, o = *old;
r = arch_atomic_cmpxchg_relaxed(v, o, new);
if (unlikely(r != o))
*old = r;
return likely(r == o);
}
#define arch_atomic_try_cmpxchg_relaxed arch_atomic_try_cmpxchg_relaxed
#endif
#else /* arch_atomic_try_cmpxchg_relaxed */
#ifndef arch_atomic_try_cmpxchg_acquire
static __always_inline bool
arch_atomic_try_cmpxchg_acquire(atomic_t *v, int *old, int new)
{
bool ret = arch_atomic_try_cmpxchg_relaxed(v, old, new);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic_try_cmpxchg_acquire arch_atomic_try_cmpxchg_acquire
#endif
#ifndef arch_atomic_try_cmpxchg_release
static __always_inline bool
arch_atomic_try_cmpxchg_release(atomic_t *v, int *old, int new)
{
__atomic_release_fence();
return arch_atomic_try_cmpxchg_relaxed(v, old, new);
}
#define arch_atomic_try_cmpxchg_release arch_atomic_try_cmpxchg_release
#endif
#ifndef arch_atomic_try_cmpxchg
static __always_inline bool
arch_atomic_try_cmpxchg(atomic_t *v, int *old, int new)
{
bool ret;
__atomic_pre_full_fence();
ret = arch_atomic_try_cmpxchg_relaxed(v, old, new);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic_try_cmpxchg arch_atomic_try_cmpxchg
#endif
#endif /* arch_atomic_try_cmpxchg_relaxed */
#ifndef arch_atomic_sub_and_test
/**
* arch_atomic_sub_and_test - subtract value from variable and test result
* @i: integer value to subtract
* @v: pointer of type atomic_t
*
* Atomically subtracts @i from @v and returns
* true if the result is zero, or false for all
* other cases.
*/
static __always_inline bool
arch_atomic_sub_and_test(int i, atomic_t *v)
{
return arch_atomic_sub_return(i, v) == 0;
}
#define arch_atomic_sub_and_test arch_atomic_sub_and_test
#endif
#ifndef arch_atomic_dec_and_test
/**
* arch_atomic_dec_and_test - decrement and test
* @v: pointer of type atomic_t
*
* Atomically decrements @v by 1 and
* returns true if the result is 0, or false for all other
* cases.
*/
static __always_inline bool
arch_atomic_dec_and_test(atomic_t *v)
{
return arch_atomic_dec_return(v) == 0;
}
#define arch_atomic_dec_and_test arch_atomic_dec_and_test
#endif
#ifndef arch_atomic_inc_and_test
/**
* arch_atomic_inc_and_test - increment and test
* @v: pointer of type atomic_t
*
* Atomically increments @v by 1
* and returns true if the result is zero, or false for all
* other cases.
*/
static __always_inline bool
arch_atomic_inc_and_test(atomic_t *v)
{
return arch_atomic_inc_return(v) == 0;
}
#define arch_atomic_inc_and_test arch_atomic_inc_and_test
#endif
#ifndef arch_atomic_add_negative
/**
* arch_atomic_add_negative - add and test if negative
* @i: integer value to add
* @v: pointer of type atomic_t
*
* Atomically adds @i to @v and returns true
* if the result is negative, or false when
* result is greater than or equal to zero.
*/
static __always_inline bool
arch_atomic_add_negative(int i, atomic_t *v)
{
return arch_atomic_add_return(i, v) < 0;
}
#define arch_atomic_add_negative arch_atomic_add_negative
#endif
#ifndef arch_atomic_fetch_add_unless
/**
* arch_atomic_fetch_add_unless - add unless the number is already a given value
* @v: pointer of type atomic_t
* @a: the amount to add to v...
* @u: ...unless v is equal to u.
*
* Atomically adds @a to @v, so long as @v was not already @u.
* Returns original value of @v
*/
static __always_inline int
arch_atomic_fetch_add_unless(atomic_t *v, int a, int u)
{
int c = arch_atomic_read(v);
do {
if (unlikely(c == u))
break;
} while (!arch_atomic_try_cmpxchg(v, &c, c + a));
return c;
}
#define arch_atomic_fetch_add_unless arch_atomic_fetch_add_unless
#endif
#ifndef arch_atomic_add_unless
/**
* arch_atomic_add_unless - add unless the number is already a given value
* @v: pointer of type atomic_t
* @a: the amount to add to v...
* @u: ...unless v is equal to u.
*
* Atomically adds @a to @v, if @v was not already @u.
* Returns true if the addition was done.
*/
static __always_inline bool
arch_atomic_add_unless(atomic_t *v, int a, int u)
{
return arch_atomic_fetch_add_unless(v, a, u) != u;
}
#define arch_atomic_add_unless arch_atomic_add_unless
#endif
#ifndef arch_atomic_inc_not_zero
/**
* arch_atomic_inc_not_zero - increment unless the number is zero
* @v: pointer of type atomic_t
*
* Atomically increments @v by 1, if @v is non-zero.
* Returns true if the increment was done.
*/
static __always_inline bool
arch_atomic_inc_not_zero(atomic_t *v)
{
return arch_atomic_add_unless(v, 1, 0);
}
#define arch_atomic_inc_not_zero arch_atomic_inc_not_zero
#endif
#ifndef arch_atomic_inc_unless_negative
static __always_inline bool
arch_atomic_inc_unless_negative(atomic_t *v)
{
int c = arch_atomic_read(v);
do {
if (unlikely(c < 0))
return false;
} while (!arch_atomic_try_cmpxchg(v, &c, c + 1));
return true;
}
#define arch_atomic_inc_unless_negative arch_atomic_inc_unless_negative
#endif
#ifndef arch_atomic_dec_unless_positive
static __always_inline bool
arch_atomic_dec_unless_positive(atomic_t *v)
{
int c = arch_atomic_read(v);
do {
if (unlikely(c > 0))
return false;
} while (!arch_atomic_try_cmpxchg(v, &c, c - 1));
return true;
}
#define arch_atomic_dec_unless_positive arch_atomic_dec_unless_positive
#endif
#ifndef arch_atomic_dec_if_positive
static __always_inline int
arch_atomic_dec_if_positive(atomic_t *v)
{
int dec, c = arch_atomic_read(v);
do {
dec = c - 1;
if (unlikely(dec < 0))
break;
} while (!arch_atomic_try_cmpxchg(v, &c, dec));
return dec;
}
#define arch_atomic_dec_if_positive arch_atomic_dec_if_positive
#endif
#ifdef CONFIG_GENERIC_ATOMIC64
#include <asm-generic/atomic64.h>
#endif
#ifndef arch_atomic64_read_acquire
static __always_inline s64
arch_atomic64_read_acquire(const atomic64_t *v)
{
return smp_load_acquire(&(v)->counter);
}
#define arch_atomic64_read_acquire arch_atomic64_read_acquire
#endif
#ifndef arch_atomic64_set_release
static __always_inline void
arch_atomic64_set_release(atomic64_t *v, s64 i)
{
smp_store_release(&(v)->counter, i);
}
#define arch_atomic64_set_release arch_atomic64_set_release
#endif
#ifndef arch_atomic64_add_return_relaxed
#define arch_atomic64_add_return_acquire arch_atomic64_add_return
#define arch_atomic64_add_return_release arch_atomic64_add_return
#define arch_atomic64_add_return_relaxed arch_atomic64_add_return
#else /* arch_atomic64_add_return_relaxed */
#ifndef arch_atomic64_add_return_acquire
static __always_inline s64
arch_atomic64_add_return_acquire(s64 i, atomic64_t *v)
{
s64 ret = arch_atomic64_add_return_relaxed(i, v);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic64_add_return_acquire arch_atomic64_add_return_acquire
#endif
#ifndef arch_atomic64_add_return_release
static __always_inline s64
arch_atomic64_add_return_release(s64 i, atomic64_t *v)
{
__atomic_release_fence();
return arch_atomic64_add_return_relaxed(i, v);
}
#define arch_atomic64_add_return_release arch_atomic64_add_return_release
#endif
#ifndef arch_atomic64_add_return
static __always_inline s64
arch_atomic64_add_return(s64 i, atomic64_t *v)
{
s64 ret;
__atomic_pre_full_fence();
ret = arch_atomic64_add_return_relaxed(i, v);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic64_add_return arch_atomic64_add_return
#endif
#endif /* arch_atomic64_add_return_relaxed */
#ifndef arch_atomic64_fetch_add_relaxed
#define arch_atomic64_fetch_add_acquire arch_atomic64_fetch_add
#define arch_atomic64_fetch_add_release arch_atomic64_fetch_add
#define arch_atomic64_fetch_add_relaxed arch_atomic64_fetch_add
#else /* arch_atomic64_fetch_add_relaxed */
#ifndef arch_atomic64_fetch_add_acquire
static __always_inline s64
arch_atomic64_fetch_add_acquire(s64 i, atomic64_t *v)
{
s64 ret = arch_atomic64_fetch_add_relaxed(i, v);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic64_fetch_add_acquire arch_atomic64_fetch_add_acquire
#endif
#ifndef arch_atomic64_fetch_add_release
static __always_inline s64
arch_atomic64_fetch_add_release(s64 i, atomic64_t *v)
{
__atomic_release_fence();
return arch_atomic64_fetch_add_relaxed(i, v);
}
#define arch_atomic64_fetch_add_release arch_atomic64_fetch_add_release
#endif
#ifndef arch_atomic64_fetch_add
static __always_inline s64
arch_atomic64_fetch_add(s64 i, atomic64_t *v)
{
s64 ret;
__atomic_pre_full_fence();
ret = arch_atomic64_fetch_add_relaxed(i, v);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic64_fetch_add arch_atomic64_fetch_add
#endif
#endif /* arch_atomic64_fetch_add_relaxed */
#ifndef arch_atomic64_sub_return_relaxed
#define arch_atomic64_sub_return_acquire arch_atomic64_sub_return
#define arch_atomic64_sub_return_release arch_atomic64_sub_return
#define arch_atomic64_sub_return_relaxed arch_atomic64_sub_return
#else /* arch_atomic64_sub_return_relaxed */
#ifndef arch_atomic64_sub_return_acquire
static __always_inline s64
arch_atomic64_sub_return_acquire(s64 i, atomic64_t *v)
{
s64 ret = arch_atomic64_sub_return_relaxed(i, v);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic64_sub_return_acquire arch_atomic64_sub_return_acquire
#endif
#ifndef arch_atomic64_sub_return_release
static __always_inline s64
arch_atomic64_sub_return_release(s64 i, atomic64_t *v)
{
__atomic_release_fence();
return arch_atomic64_sub_return_relaxed(i, v);
}
#define arch_atomic64_sub_return_release arch_atomic64_sub_return_release
#endif
#ifndef arch_atomic64_sub_return
static __always_inline s64
arch_atomic64_sub_return(s64 i, atomic64_t *v)
{
s64 ret;
__atomic_pre_full_fence();
ret = arch_atomic64_sub_return_relaxed(i, v);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic64_sub_return arch_atomic64_sub_return
#endif
#endif /* arch_atomic64_sub_return_relaxed */
#ifndef arch_atomic64_fetch_sub_relaxed
#define arch_atomic64_fetch_sub_acquire arch_atomic64_fetch_sub
#define arch_atomic64_fetch_sub_release arch_atomic64_fetch_sub
#define arch_atomic64_fetch_sub_relaxed arch_atomic64_fetch_sub
#else /* arch_atomic64_fetch_sub_relaxed */
#ifndef arch_atomic64_fetch_sub_acquire
static __always_inline s64
arch_atomic64_fetch_sub_acquire(s64 i, atomic64_t *v)
{
s64 ret = arch_atomic64_fetch_sub_relaxed(i, v);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic64_fetch_sub_acquire arch_atomic64_fetch_sub_acquire
#endif
#ifndef arch_atomic64_fetch_sub_release
static __always_inline s64
arch_atomic64_fetch_sub_release(s64 i, atomic64_t *v)
{
__atomic_release_fence();
return arch_atomic64_fetch_sub_relaxed(i, v);
}
#define arch_atomic64_fetch_sub_release arch_atomic64_fetch_sub_release
#endif
#ifndef arch_atomic64_fetch_sub
static __always_inline s64
arch_atomic64_fetch_sub(s64 i, atomic64_t *v)
{
s64 ret;
__atomic_pre_full_fence();
ret = arch_atomic64_fetch_sub_relaxed(i, v);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic64_fetch_sub arch_atomic64_fetch_sub
#endif
#endif /* arch_atomic64_fetch_sub_relaxed */
#ifndef arch_atomic64_inc
static __always_inline void
arch_atomic64_inc(atomic64_t *v)
{
arch_atomic64_add(1, v);
}
#define arch_atomic64_inc arch_atomic64_inc
#endif
#ifndef arch_atomic64_inc_return_relaxed
#ifdef arch_atomic64_inc_return
#define arch_atomic64_inc_return_acquire arch_atomic64_inc_return
#define arch_atomic64_inc_return_release arch_atomic64_inc_return
#define arch_atomic64_inc_return_relaxed arch_atomic64_inc_return
#endif /* arch_atomic64_inc_return */
#ifndef arch_atomic64_inc_return
static __always_inline s64
arch_atomic64_inc_return(atomic64_t *v)
{
return arch_atomic64_add_return(1, v);
}
#define arch_atomic64_inc_return arch_atomic64_inc_return
#endif
#ifndef arch_atomic64_inc_return_acquire
static __always_inline s64
arch_atomic64_inc_return_acquire(atomic64_t *v)
{
return arch_atomic64_add_return_acquire(1, v);
}
#define arch_atomic64_inc_return_acquire arch_atomic64_inc_return_acquire
#endif
#ifndef arch_atomic64_inc_return_release
static __always_inline s64
arch_atomic64_inc_return_release(atomic64_t *v)
{
return arch_atomic64_add_return_release(1, v);
}
#define arch_atomic64_inc_return_release arch_atomic64_inc_return_release
#endif
#ifndef arch_atomic64_inc_return_relaxed
static __always_inline s64
arch_atomic64_inc_return_relaxed(atomic64_t *v)
{
return arch_atomic64_add_return_relaxed(1, v);
}
#define arch_atomic64_inc_return_relaxed arch_atomic64_inc_return_relaxed
#endif
#else /* arch_atomic64_inc_return_relaxed */
#ifndef arch_atomic64_inc_return_acquire
static __always_inline s64
arch_atomic64_inc_return_acquire(atomic64_t *v)
{
s64 ret = arch_atomic64_inc_return_relaxed(v);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic64_inc_return_acquire arch_atomic64_inc_return_acquire
#endif
#ifndef arch_atomic64_inc_return_release
static __always_inline s64
arch_atomic64_inc_return_release(atomic64_t *v)
{
__atomic_release_fence();
return arch_atomic64_inc_return_relaxed(v);
}
#define arch_atomic64_inc_return_release arch_atomic64_inc_return_release
#endif
#ifndef arch_atomic64_inc_return
static __always_inline s64
arch_atomic64_inc_return(atomic64_t *v)
{
s64 ret;
__atomic_pre_full_fence();
ret = arch_atomic64_inc_return_relaxed(v);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic64_inc_return arch_atomic64_inc_return
#endif
#endif /* arch_atomic64_inc_return_relaxed */
#ifndef arch_atomic64_fetch_inc_relaxed
#ifdef arch_atomic64_fetch_inc
#define arch_atomic64_fetch_inc_acquire arch_atomic64_fetch_inc
#define arch_atomic64_fetch_inc_release arch_atomic64_fetch_inc
#define arch_atomic64_fetch_inc_relaxed arch_atomic64_fetch_inc
#endif /* arch_atomic64_fetch_inc */
#ifndef arch_atomic64_fetch_inc
static __always_inline s64
arch_atomic64_fetch_inc(atomic64_t *v)
{
return arch_atomic64_fetch_add(1, v);
}
#define arch_atomic64_fetch_inc arch_atomic64_fetch_inc
#endif
#ifndef arch_atomic64_fetch_inc_acquire
static __always_inline s64
arch_atomic64_fetch_inc_acquire(atomic64_t *v)
{
return arch_atomic64_fetch_add_acquire(1, v);
}
#define arch_atomic64_fetch_inc_acquire arch_atomic64_fetch_inc_acquire
#endif
#ifndef arch_atomic64_fetch_inc_release
static __always_inline s64
arch_atomic64_fetch_inc_release(atomic64_t *v)
{
return arch_atomic64_fetch_add_release(1, v);
}
#define arch_atomic64_fetch_inc_release arch_atomic64_fetch_inc_release
#endif
#ifndef arch_atomic64_fetch_inc_relaxed
static __always_inline s64
arch_atomic64_fetch_inc_relaxed(atomic64_t *v)
{
return arch_atomic64_fetch_add_relaxed(1, v);
}
#define arch_atomic64_fetch_inc_relaxed arch_atomic64_fetch_inc_relaxed
#endif
#else /* arch_atomic64_fetch_inc_relaxed */
#ifndef arch_atomic64_fetch_inc_acquire
static __always_inline s64
arch_atomic64_fetch_inc_acquire(atomic64_t *v)
{
s64 ret = arch_atomic64_fetch_inc_relaxed(v);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic64_fetch_inc_acquire arch_atomic64_fetch_inc_acquire
#endif
#ifndef arch_atomic64_fetch_inc_release
static __always_inline s64
arch_atomic64_fetch_inc_release(atomic64_t *v)
{
__atomic_release_fence();
return arch_atomic64_fetch_inc_relaxed(v);
}
#define arch_atomic64_fetch_inc_release arch_atomic64_fetch_inc_release
#endif
#ifndef arch_atomic64_fetch_inc
static __always_inline s64
arch_atomic64_fetch_inc(atomic64_t *v)
{
s64 ret;
__atomic_pre_full_fence();
ret = arch_atomic64_fetch_inc_relaxed(v);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic64_fetch_inc arch_atomic64_fetch_inc
#endif
#endif /* arch_atomic64_fetch_inc_relaxed */
#ifndef arch_atomic64_dec
static __always_inline void
arch_atomic64_dec(atomic64_t *v)
{
arch_atomic64_sub(1, v);
}
#define arch_atomic64_dec arch_atomic64_dec
#endif
#ifndef arch_atomic64_dec_return_relaxed
#ifdef arch_atomic64_dec_return
#define arch_atomic64_dec_return_acquire arch_atomic64_dec_return
#define arch_atomic64_dec_return_release arch_atomic64_dec_return
#define arch_atomic64_dec_return_relaxed arch_atomic64_dec_return
#endif /* arch_atomic64_dec_return */
#ifndef arch_atomic64_dec_return
static __always_inline s64
arch_atomic64_dec_return(atomic64_t *v)
{
return arch_atomic64_sub_return(1, v);
}
#define arch_atomic64_dec_return arch_atomic64_dec_return
#endif
#ifndef arch_atomic64_dec_return_acquire
static __always_inline s64
arch_atomic64_dec_return_acquire(atomic64_t *v)
{
return arch_atomic64_sub_return_acquire(1, v);
}
#define arch_atomic64_dec_return_acquire arch_atomic64_dec_return_acquire
#endif
#ifndef arch_atomic64_dec_return_release
static __always_inline s64
arch_atomic64_dec_return_release(atomic64_t *v)
{
return arch_atomic64_sub_return_release(1, v);
}
#define arch_atomic64_dec_return_release arch_atomic64_dec_return_release
#endif
#ifndef arch_atomic64_dec_return_relaxed
static __always_inline s64
arch_atomic64_dec_return_relaxed(atomic64_t *v)
{
return arch_atomic64_sub_return_relaxed(1, v);
}
#define arch_atomic64_dec_return_relaxed arch_atomic64_dec_return_relaxed
#endif
#else /* arch_atomic64_dec_return_relaxed */
#ifndef arch_atomic64_dec_return_acquire
static __always_inline s64
arch_atomic64_dec_return_acquire(atomic64_t *v)
{
s64 ret = arch_atomic64_dec_return_relaxed(v);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic64_dec_return_acquire arch_atomic64_dec_return_acquire
#endif
#ifndef arch_atomic64_dec_return_release
static __always_inline s64
arch_atomic64_dec_return_release(atomic64_t *v)
{
__atomic_release_fence();
return arch_atomic64_dec_return_relaxed(v);
}
#define arch_atomic64_dec_return_release arch_atomic64_dec_return_release
#endif
#ifndef arch_atomic64_dec_return
static __always_inline s64
arch_atomic64_dec_return(atomic64_t *v)
{
s64 ret;
__atomic_pre_full_fence();
ret = arch_atomic64_dec_return_relaxed(v);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic64_dec_return arch_atomic64_dec_return
#endif
#endif /* arch_atomic64_dec_return_relaxed */
#ifndef arch_atomic64_fetch_dec_relaxed
#ifdef arch_atomic64_fetch_dec
#define arch_atomic64_fetch_dec_acquire arch_atomic64_fetch_dec
#define arch_atomic64_fetch_dec_release arch_atomic64_fetch_dec
#define arch_atomic64_fetch_dec_relaxed arch_atomic64_fetch_dec
#endif /* arch_atomic64_fetch_dec */
#ifndef arch_atomic64_fetch_dec
static __always_inline s64
arch_atomic64_fetch_dec(atomic64_t *v)
{
return arch_atomic64_fetch_sub(1, v);
}
#define arch_atomic64_fetch_dec arch_atomic64_fetch_dec
#endif
#ifndef arch_atomic64_fetch_dec_acquire
static __always_inline s64
arch_atomic64_fetch_dec_acquire(atomic64_t *v)
{
return arch_atomic64_fetch_sub_acquire(1, v);
}
#define arch_atomic64_fetch_dec_acquire arch_atomic64_fetch_dec_acquire
#endif
#ifndef arch_atomic64_fetch_dec_release
static __always_inline s64
arch_atomic64_fetch_dec_release(atomic64_t *v)
{
return arch_atomic64_fetch_sub_release(1, v);
}
#define arch_atomic64_fetch_dec_release arch_atomic64_fetch_dec_release
#endif
#ifndef arch_atomic64_fetch_dec_relaxed
static __always_inline s64
arch_atomic64_fetch_dec_relaxed(atomic64_t *v)
{
return arch_atomic64_fetch_sub_relaxed(1, v);
}
#define arch_atomic64_fetch_dec_relaxed arch_atomic64_fetch_dec_relaxed
#endif
#else /* arch_atomic64_fetch_dec_relaxed */
#ifndef arch_atomic64_fetch_dec_acquire
static __always_inline s64
arch_atomic64_fetch_dec_acquire(atomic64_t *v)
{
s64 ret = arch_atomic64_fetch_dec_relaxed(v);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic64_fetch_dec_acquire arch_atomic64_fetch_dec_acquire
#endif
#ifndef arch_atomic64_fetch_dec_release
static __always_inline s64
arch_atomic64_fetch_dec_release(atomic64_t *v)
{
__atomic_release_fence();
return arch_atomic64_fetch_dec_relaxed(v);
}
#define arch_atomic64_fetch_dec_release arch_atomic64_fetch_dec_release
#endif
#ifndef arch_atomic64_fetch_dec
static __always_inline s64
arch_atomic64_fetch_dec(atomic64_t *v)
{
s64 ret;
__atomic_pre_full_fence();
ret = arch_atomic64_fetch_dec_relaxed(v);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic64_fetch_dec arch_atomic64_fetch_dec
#endif
#endif /* arch_atomic64_fetch_dec_relaxed */
#ifndef arch_atomic64_fetch_and_relaxed
#define arch_atomic64_fetch_and_acquire arch_atomic64_fetch_and
#define arch_atomic64_fetch_and_release arch_atomic64_fetch_and
#define arch_atomic64_fetch_and_relaxed arch_atomic64_fetch_and
#else /* arch_atomic64_fetch_and_relaxed */
#ifndef arch_atomic64_fetch_and_acquire
static __always_inline s64
arch_atomic64_fetch_and_acquire(s64 i, atomic64_t *v)
{
s64 ret = arch_atomic64_fetch_and_relaxed(i, v);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic64_fetch_and_acquire arch_atomic64_fetch_and_acquire
#endif
#ifndef arch_atomic64_fetch_and_release
static __always_inline s64
arch_atomic64_fetch_and_release(s64 i, atomic64_t *v)
{
__atomic_release_fence();
return arch_atomic64_fetch_and_relaxed(i, v);
}
#define arch_atomic64_fetch_and_release arch_atomic64_fetch_and_release
#endif
#ifndef arch_atomic64_fetch_and
static __always_inline s64
arch_atomic64_fetch_and(s64 i, atomic64_t *v)
{
s64 ret;
__atomic_pre_full_fence();
ret = arch_atomic64_fetch_and_relaxed(i, v);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic64_fetch_and arch_atomic64_fetch_and
#endif
#endif /* arch_atomic64_fetch_and_relaxed */
#ifndef arch_atomic64_andnot
static __always_inline void
arch_atomic64_andnot(s64 i, atomic64_t *v)
{
arch_atomic64_and(~i, v);
}
#define arch_atomic64_andnot arch_atomic64_andnot
#endif
#ifndef arch_atomic64_fetch_andnot_relaxed
#ifdef arch_atomic64_fetch_andnot
#define arch_atomic64_fetch_andnot_acquire arch_atomic64_fetch_andnot
#define arch_atomic64_fetch_andnot_release arch_atomic64_fetch_andnot
#define arch_atomic64_fetch_andnot_relaxed arch_atomic64_fetch_andnot
#endif /* arch_atomic64_fetch_andnot */
#ifndef arch_atomic64_fetch_andnot
static __always_inline s64
arch_atomic64_fetch_andnot(s64 i, atomic64_t *v)
{
return arch_atomic64_fetch_and(~i, v);
}
#define arch_atomic64_fetch_andnot arch_atomic64_fetch_andnot
#endif
#ifndef arch_atomic64_fetch_andnot_acquire
static __always_inline s64
arch_atomic64_fetch_andnot_acquire(s64 i, atomic64_t *v)
{
return arch_atomic64_fetch_and_acquire(~i, v);
}
#define arch_atomic64_fetch_andnot_acquire arch_atomic64_fetch_andnot_acquire
#endif
#ifndef arch_atomic64_fetch_andnot_release
static __always_inline s64
arch_atomic64_fetch_andnot_release(s64 i, atomic64_t *v)
{
return arch_atomic64_fetch_and_release(~i, v);
}
#define arch_atomic64_fetch_andnot_release arch_atomic64_fetch_andnot_release
#endif
#ifndef arch_atomic64_fetch_andnot_relaxed
static __always_inline s64
arch_atomic64_fetch_andnot_relaxed(s64 i, atomic64_t *v)
{
return arch_atomic64_fetch_and_relaxed(~i, v);
}
#define arch_atomic64_fetch_andnot_relaxed arch_atomic64_fetch_andnot_relaxed
#endif
#else /* arch_atomic64_fetch_andnot_relaxed */
#ifndef arch_atomic64_fetch_andnot_acquire
static __always_inline s64
arch_atomic64_fetch_andnot_acquire(s64 i, atomic64_t *v)
{
s64 ret = arch_atomic64_fetch_andnot_relaxed(i, v);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic64_fetch_andnot_acquire arch_atomic64_fetch_andnot_acquire
#endif
#ifndef arch_atomic64_fetch_andnot_release
static __always_inline s64
arch_atomic64_fetch_andnot_release(s64 i, atomic64_t *v)
{
__atomic_release_fence();
return arch_atomic64_fetch_andnot_relaxed(i, v);
}
#define arch_atomic64_fetch_andnot_release arch_atomic64_fetch_andnot_release
#endif
#ifndef arch_atomic64_fetch_andnot
static __always_inline s64
arch_atomic64_fetch_andnot(s64 i, atomic64_t *v)
{
s64 ret;
__atomic_pre_full_fence();
ret = arch_atomic64_fetch_andnot_relaxed(i, v);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic64_fetch_andnot arch_atomic64_fetch_andnot
#endif
#endif /* arch_atomic64_fetch_andnot_relaxed */
#ifndef arch_atomic64_fetch_or_relaxed
#define arch_atomic64_fetch_or_acquire arch_atomic64_fetch_or
#define arch_atomic64_fetch_or_release arch_atomic64_fetch_or
#define arch_atomic64_fetch_or_relaxed arch_atomic64_fetch_or
#else /* arch_atomic64_fetch_or_relaxed */
#ifndef arch_atomic64_fetch_or_acquire
static __always_inline s64
arch_atomic64_fetch_or_acquire(s64 i, atomic64_t *v)
{
s64 ret = arch_atomic64_fetch_or_relaxed(i, v);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic64_fetch_or_acquire arch_atomic64_fetch_or_acquire
#endif
#ifndef arch_atomic64_fetch_or_release
static __always_inline s64
arch_atomic64_fetch_or_release(s64 i, atomic64_t *v)
{
__atomic_release_fence();
return arch_atomic64_fetch_or_relaxed(i, v);
}
#define arch_atomic64_fetch_or_release arch_atomic64_fetch_or_release
#endif
#ifndef arch_atomic64_fetch_or
static __always_inline s64
arch_atomic64_fetch_or(s64 i, atomic64_t *v)
{
s64 ret;
__atomic_pre_full_fence();
ret = arch_atomic64_fetch_or_relaxed(i, v);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic64_fetch_or arch_atomic64_fetch_or
#endif
#endif /* arch_atomic64_fetch_or_relaxed */
#ifndef arch_atomic64_fetch_xor_relaxed
#define arch_atomic64_fetch_xor_acquire arch_atomic64_fetch_xor
#define arch_atomic64_fetch_xor_release arch_atomic64_fetch_xor
#define arch_atomic64_fetch_xor_relaxed arch_atomic64_fetch_xor
#else /* arch_atomic64_fetch_xor_relaxed */
#ifndef arch_atomic64_fetch_xor_acquire
static __always_inline s64
arch_atomic64_fetch_xor_acquire(s64 i, atomic64_t *v)
{
s64 ret = arch_atomic64_fetch_xor_relaxed(i, v);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic64_fetch_xor_acquire arch_atomic64_fetch_xor_acquire
#endif
#ifndef arch_atomic64_fetch_xor_release
static __always_inline s64
arch_atomic64_fetch_xor_release(s64 i, atomic64_t *v)
{
__atomic_release_fence();
return arch_atomic64_fetch_xor_relaxed(i, v);
}
#define arch_atomic64_fetch_xor_release arch_atomic64_fetch_xor_release
#endif
#ifndef arch_atomic64_fetch_xor
static __always_inline s64
arch_atomic64_fetch_xor(s64 i, atomic64_t *v)
{
s64 ret;
__atomic_pre_full_fence();
ret = arch_atomic64_fetch_xor_relaxed(i, v);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic64_fetch_xor arch_atomic64_fetch_xor
#endif
#endif /* arch_atomic64_fetch_xor_relaxed */
#ifndef arch_atomic64_xchg_relaxed
#define arch_atomic64_xchg_acquire arch_atomic64_xchg
#define arch_atomic64_xchg_release arch_atomic64_xchg
#define arch_atomic64_xchg_relaxed arch_atomic64_xchg
#else /* arch_atomic64_xchg_relaxed */
#ifndef arch_atomic64_xchg_acquire
static __always_inline s64
arch_atomic64_xchg_acquire(atomic64_t *v, s64 i)
{
s64 ret = arch_atomic64_xchg_relaxed(v, i);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic64_xchg_acquire arch_atomic64_xchg_acquire
#endif
#ifndef arch_atomic64_xchg_release
static __always_inline s64
arch_atomic64_xchg_release(atomic64_t *v, s64 i)
{
__atomic_release_fence();
return arch_atomic64_xchg_relaxed(v, i);
}
#define arch_atomic64_xchg_release arch_atomic64_xchg_release
#endif
#ifndef arch_atomic64_xchg
static __always_inline s64
arch_atomic64_xchg(atomic64_t *v, s64 i)
{
s64 ret;
__atomic_pre_full_fence();
ret = arch_atomic64_xchg_relaxed(v, i);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic64_xchg arch_atomic64_xchg
#endif
#endif /* arch_atomic64_xchg_relaxed */
#ifndef arch_atomic64_cmpxchg_relaxed
#define arch_atomic64_cmpxchg_acquire arch_atomic64_cmpxchg
#define arch_atomic64_cmpxchg_release arch_atomic64_cmpxchg
#define arch_atomic64_cmpxchg_relaxed arch_atomic64_cmpxchg
#else /* arch_atomic64_cmpxchg_relaxed */
#ifndef arch_atomic64_cmpxchg_acquire
static __always_inline s64
arch_atomic64_cmpxchg_acquire(atomic64_t *v, s64 old, s64 new)
{
s64 ret = arch_atomic64_cmpxchg_relaxed(v, old, new);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic64_cmpxchg_acquire arch_atomic64_cmpxchg_acquire
#endif
#ifndef arch_atomic64_cmpxchg_release
static __always_inline s64
arch_atomic64_cmpxchg_release(atomic64_t *v, s64 old, s64 new)
{
__atomic_release_fence();
return arch_atomic64_cmpxchg_relaxed(v, old, new);
}
#define arch_atomic64_cmpxchg_release arch_atomic64_cmpxchg_release
#endif
#ifndef arch_atomic64_cmpxchg
static __always_inline s64
arch_atomic64_cmpxchg(atomic64_t *v, s64 old, s64 new)
{
s64 ret;
__atomic_pre_full_fence();
ret = arch_atomic64_cmpxchg_relaxed(v, old, new);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic64_cmpxchg arch_atomic64_cmpxchg
#endif
#endif /* arch_atomic64_cmpxchg_relaxed */
#ifndef arch_atomic64_try_cmpxchg_relaxed
#ifdef arch_atomic64_try_cmpxchg
#define arch_atomic64_try_cmpxchg_acquire arch_atomic64_try_cmpxchg
#define arch_atomic64_try_cmpxchg_release arch_atomic64_try_cmpxchg
#define arch_atomic64_try_cmpxchg_relaxed arch_atomic64_try_cmpxchg
#endif /* arch_atomic64_try_cmpxchg */
#ifndef arch_atomic64_try_cmpxchg
static __always_inline bool
arch_atomic64_try_cmpxchg(atomic64_t *v, s64 *old, s64 new)
{
s64 r, o = *old;
r = arch_atomic64_cmpxchg(v, o, new);
if (unlikely(r != o))
*old = r;
return likely(r == o);
}
#define arch_atomic64_try_cmpxchg arch_atomic64_try_cmpxchg
#endif
#ifndef arch_atomic64_try_cmpxchg_acquire
static __always_inline bool
arch_atomic64_try_cmpxchg_acquire(atomic64_t *v, s64 *old, s64 new)
{
s64 r, o = *old;
r = arch_atomic64_cmpxchg_acquire(v, o, new);
if (unlikely(r != o))
*old = r;
return likely(r == o);
}
#define arch_atomic64_try_cmpxchg_acquire arch_atomic64_try_cmpxchg_acquire
#endif
#ifndef arch_atomic64_try_cmpxchg_release
static __always_inline bool
arch_atomic64_try_cmpxchg_release(atomic64_t *v, s64 *old, s64 new)
{
s64 r, o = *old;
r = arch_atomic64_cmpxchg_release(v, o, new);
if (unlikely(r != o))
*old = r;
return likely(r == o);
}
#define arch_atomic64_try_cmpxchg_release arch_atomic64_try_cmpxchg_release
#endif
#ifndef arch_atomic64_try_cmpxchg_relaxed
static __always_inline bool
arch_atomic64_try_cmpxchg_relaxed(atomic64_t *v, s64 *old, s64 new)
{
s64 r, o = *old;
r = arch_atomic64_cmpxchg_relaxed(v, o, new);
if (unlikely(r != o))
*old = r;
return likely(r == o);
}
#define arch_atomic64_try_cmpxchg_relaxed arch_atomic64_try_cmpxchg_relaxed
#endif
#else /* arch_atomic64_try_cmpxchg_relaxed */
#ifndef arch_atomic64_try_cmpxchg_acquire
static __always_inline bool
arch_atomic64_try_cmpxchg_acquire(atomic64_t *v, s64 *old, s64 new)
{
bool ret = arch_atomic64_try_cmpxchg_relaxed(v, old, new);
__atomic_acquire_fence();
return ret;
}
#define arch_atomic64_try_cmpxchg_acquire arch_atomic64_try_cmpxchg_acquire
#endif
#ifndef arch_atomic64_try_cmpxchg_release
static __always_inline bool
arch_atomic64_try_cmpxchg_release(atomic64_t *v, s64 *old, s64 new)
{
__atomic_release_fence();
return arch_atomic64_try_cmpxchg_relaxed(v, old, new);
}
#define arch_atomic64_try_cmpxchg_release arch_atomic64_try_cmpxchg_release
#endif
#ifndef arch_atomic64_try_cmpxchg
static __always_inline bool
arch_atomic64_try_cmpxchg(atomic64_t *v, s64 *old, s64 new)
{
bool ret;
__atomic_pre_full_fence();
ret = arch_atomic64_try_cmpxchg_relaxed(v, old, new);
__atomic_post_full_fence();
return ret;
}
#define arch_atomic64_try_cmpxchg arch_atomic64_try_cmpxchg
#endif
#endif /* arch_atomic64_try_cmpxchg_relaxed */
#ifndef arch_atomic64_sub_and_test
/**
* arch_atomic64_sub_and_test - subtract value from variable and test result
* @i: integer value to subtract
* @v: pointer of type atomic64_t
*
* Atomically subtracts @i from @v and returns
* true if the result is zero, or false for all
* other cases.
*/
static __always_inline bool
arch_atomic64_sub_and_test(s64 i, atomic64_t *v)
{
return arch_atomic64_sub_return(i, v) == 0;
}
#define arch_atomic64_sub_and_test arch_atomic64_sub_and_test
#endif
#ifndef arch_atomic64_dec_and_test
/**
* arch_atomic64_dec_and_test - decrement and test
* @v: pointer of type atomic64_t
*
* Atomically decrements @v by 1 and
* returns true if the result is 0, or false for all other
* cases.
*/
static __always_inline bool
arch_atomic64_dec_and_test(atomic64_t *v)
{
return arch_atomic64_dec_return(v) == 0;
}
#define arch_atomic64_dec_and_test arch_atomic64_dec_and_test
#endif
#ifndef arch_atomic64_inc_and_test
/**
* arch_atomic64_inc_and_test - increment and test
* @v: pointer of type atomic64_t
*
* Atomically increments @v by 1
* and returns true if the result is zero, or false for all
* other cases.
*/
static __always_inline bool
arch_atomic64_inc_and_test(atomic64_t *v)
{
return arch_atomic64_inc_return(v) == 0;
}
#define arch_atomic64_inc_and_test arch_atomic64_inc_and_test
#endif
#ifndef arch_atomic64_add_negative
/**
* arch_atomic64_add_negative - add and test if negative
* @i: integer value to add
* @v: pointer of type atomic64_t
*
* Atomically adds @i to @v and returns true
* if the result is negative, or false when
* result is greater than or equal to zero.
*/
static __always_inline bool
arch_atomic64_add_negative(s64 i, atomic64_t *v)
{
return arch_atomic64_add_return(i, v) < 0;
}
#define arch_atomic64_add_negative arch_atomic64_add_negative
#endif
#ifndef arch_atomic64_fetch_add_unless
/**
* arch_atomic64_fetch_add_unless - add unless the number is already a given value
* @v: pointer of type atomic64_t
* @a: the amount to add to v...
* @u: ...unless v is equal to u.
*
* Atomically adds @a to @v, so long as @v was not already @u.
* Returns original value of @v
*/
static __always_inline s64
arch_atomic64_fetch_add_unless(atomic64_t *v, s64 a, s64 u)
{
s64 c = arch_atomic64_read(v);
do {
if (unlikely(c == u))
break;
} while (!arch_atomic64_try_cmpxchg(v, &c, c + a));
return c;
}
#define arch_atomic64_fetch_add_unless arch_atomic64_fetch_add_unless
#endif
#ifndef arch_atomic64_add_unless
/**
* arch_atomic64_add_unless - add unless the number is already a given value
* @v: pointer of type atomic64_t
* @a: the amount to add to v...
* @u: ...unless v is equal to u.
*
* Atomically adds @a to @v, if @v was not already @u.
* Returns true if the addition was done.
*/
static __always_inline bool
arch_atomic64_add_unless(atomic64_t *v, s64 a, s64 u)
{
return arch_atomic64_fetch_add_unless(v, a, u) != u;
}
#define arch_atomic64_add_unless arch_atomic64_add_unless
#endif
#ifndef arch_atomic64_inc_not_zero
/**
* arch_atomic64_inc_not_zero - increment unless the number is zero
* @v: pointer of type atomic64_t
*
* Atomically increments @v by 1, if @v is non-zero.
* Returns true if the increment was done.
*/
static __always_inline bool
arch_atomic64_inc_not_zero(atomic64_t *v)
{
return arch_atomic64_add_unless(v, 1, 0);
}
#define arch_atomic64_inc_not_zero arch_atomic64_inc_not_zero
#endif
#ifndef arch_atomic64_inc_unless_negative
static __always_inline bool
arch_atomic64_inc_unless_negative(atomic64_t *v)
{
s64 c = arch_atomic64_read(v);
do {
if (unlikely(c < 0))
return false;
} while (!arch_atomic64_try_cmpxchg(v, &c, c + 1));
return true;
}
#define arch_atomic64_inc_unless_negative arch_atomic64_inc_unless_negative
#endif
#ifndef arch_atomic64_dec_unless_positive
static __always_inline bool
arch_atomic64_dec_unless_positive(atomic64_t *v)
{
s64 c = arch_atomic64_read(v);
do {
if (unlikely(c > 0))
return false;
} while (!arch_atomic64_try_cmpxchg(v, &c, c - 1));
return true;
}
#define arch_atomic64_dec_unless_positive arch_atomic64_dec_unless_positive
#endif
#ifndef arch_atomic64_dec_if_positive
static __always_inline s64
arch_atomic64_dec_if_positive(atomic64_t *v)
{
s64 dec, c = arch_atomic64_read(v);
do {
dec = c - 1;
if (unlikely(dec < 0))
break;
} while (!arch_atomic64_try_cmpxchg(v, &c, dec));
return dec;
}
#define arch_atomic64_dec_if_positive arch_atomic64_dec_if_positive
#endif
#endif /* _LINUX_ATOMIC_FALLBACK_H */
// 90cd26cfd69d2250303d654955a0cc12620fb91b