函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:lib\atomic64.c Create Date:2022-07-27 08:15:45
Last Modify:2022-05-18 13:46:02 Copyright©Brick
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函数名称：atomic64_fetch_sub

函数原型：s64 atomic64_fetch_sub(s64 a, atomic64_t *v)

返回类型：s64

参数：

类型参数名称
s64a
atomic64_t *v
123  lock等于lock_addr(v)
123  循环
123  ({
123  __dummy恒等于__dummy2
123  1
123  })
123  循环
123  循环
123  循环
123  ({
123  __dummy恒等于__dummy2
123  1
123  })
123  flags等于For spinlocks, etc:
123  当0循环
123  当0循环
123  循环
123  __asm__ __volatile__
123  循环
123  0
123  当0循环
123  当0循环
123  当0循环
123  当0循环
123  val等于counter
123  counter减等于a
123  循环
123  ({
123  __dummy恒等于__dummy2
123  1
123  })
123  循环
123  循环
123  循环
123  ({
123  __dummy恒等于__dummy2
123  1
123  })
123  arch_local_irq_restore(flags)
123  当0循环
123  当0循环
123  循环
123  __asm__ __volatile__
123  循环
123  0
123  当0循环
123  当0循环
123  当0循环
123  当0循环
123  返回:val