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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
#ifndef _ASM_LOCAL_H
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#define _ASM_LOCAL_H
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#include <linux/percpu.h>
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#include <asm/atomic.h>
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#ifndef __s390x__
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typedef atomic_t local_t;
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#define LOCAL_INIT(i) ATOMIC_INIT(i)
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#define local_read(v) atomic_read(v)
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#define local_set(v,i) atomic_set(v,i)
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#define local_inc(v) atomic_inc(v)
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#define local_dec(v) atomic_dec(v)
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#define local_add(i, v) atomic_add(i, v)
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#define local_sub(i, v) atomic_sub(i, v)
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#else
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typedef atomic64_t local_t;
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#define LOCAL_INIT(i) ATOMIC64_INIT(i)
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#define local_read(v) atomic64_read(v)
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#define local_set(v,i) atomic64_set(v,i)
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#define local_inc(v) atomic64_inc(v)
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#define local_dec(v) atomic64_dec(v)
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#define local_add(i, v) atomic64_add(i, v)
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#define local_sub(i, v) atomic64_sub(i, v)
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#endif
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#define __local_inc(v) ((v)->counter++)
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#define __local_dec(v) ((v)->counter--)
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#define __local_add(i,v) ((v)->counter+=(i))
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#define __local_sub(i,v) ((v)->counter-=(i))
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/*
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* Use these for per-cpu local_t variables: on some archs they are
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* much more efficient than these naive implementations. Note they take
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* a variable, not an address.
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*/
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#define cpu_local_read(v) local_read(&__get_cpu_var(v))
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#define cpu_local_set(v, i) local_set(&__get_cpu_var(v), (i))
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#define cpu_local_inc(v) local_inc(&__get_cpu_var(v))
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#define cpu_local_dec(v) local_dec(&__get_cpu_var(v))
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#define cpu_local_add(i, v) local_add((i), &__get_cpu_var(v))
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#define cpu_local_sub(i, v) local_sub((i), &__get_cpu_var(v))
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#define __cpu_local_inc(v) __local_inc(&__get_cpu_var(v))
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#define __cpu_local_dec(v) __local_dec(&__get_cpu_var(v))
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#define __cpu_local_add(i, v) __local_add((i), &__get_cpu_var(v))
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#define __cpu_local_sub(i, v) __local_sub((i), &__get_cpu_var(v))
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#endif /* _ASM_LOCAL_H */
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