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https://gitee.com/bianbu-linux/linux-6.6
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e5ab9eff46
atomic_add_negative() does not provide the relaxed/acquire/release variants. Provide them in preparation for a new scalable reference count algorithm. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Mark Rutland <mark.rutland@arm.com> Link: https://lore.kernel.org/r/20230323102800.101763813@linutronix.de
15 lines
435 B
Text
Executable file
15 lines
435 B
Text
Executable file
cat <<EOF
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/**
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* arch_${atomic}_add_negative${order} - Add and test if negative
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* @i: integer value to add
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* @v: pointer of type ${atomic}_t
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*
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* Atomically adds @i to @v and returns true if the result is negative,
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* or false when the result is greater than or equal to zero.
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*/
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static __always_inline bool
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arch_${atomic}_add_negative${order}(${int} i, ${atomic}_t *v)
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{
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return arch_${atomic}_add_return${order}(i, v) < 0;
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}
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EOF
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