函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:lib\locking-selftest.c Create Date:2022-07-27 07:47:47
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：irqsafe2B_hard_wlock_21

函数原型：static void irqsafe2B_hard_wlock_21(void)

返回类型：void

参数：无

822  local_bh_disable()
822  lock for reading
822  local_bh_enable()
822  lease a read lock
822  local_bh_disable()
822  循环
822  arch_local_irq_disable()
822  当0循环
822  循环
822  当0循环
822  ({
822  __ret_warn_on等于非非非抢占计数值按位与1UL左移8位的值减1左移0加8位的值
822  __builtin_expect(!!(__ret_warn_on), 0)
822  })
822  lock for reading
822  lease a read lock
822  循环
822  当0循环
822  循环
822  arch_local_irq_enable()
822  当0循环
822  local_bh_enable()