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 07:47:45
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：irqsafe2B_hard_rlock_12

函数原型：static void irqsafe2B_hard_rlock_12(void)

返回类型：void

参数：无

819  local_bh_disable()
819  循环
819  arch_local_irq_disable()
819  当0循环
819  循环
819  当0循环
819  ({
819  __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
819  __builtin_expect(!!(__ret_warn_on), 0)
819  })
819  lock for reading
819  lease a read lock
819  循环
819  当0循环
819  循环
819  arch_local_irq_enable()
819  当0循环
819  local_bh_enable()
819  local_bh_disable()
819  lock for reading
819  local_bh_enable()
819  lease a read lock