函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\fork.c Create Date:2022-07-27 09:57:44
Last Modify:2020-03-17 11:04:53 Copyright©Brick
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函数名称：__cleanup_sighand

函数原型：void __cleanup_sighand(struct sighand_struct *sighand)

返回类型：void

参数：

类型参数名称
struct sighand_struct *sighand
1529  如果_dec_and_test - decrement a refcount and test if it is 0*@r: the refcount* Similar to atomic_dec_and_test(), it will WARN on underflow and fail to* decrement when saturated at REFCOUNT_SATURATED则
1530  signalfd_cleanup(sighand)
1535  释放一个对象
调用者
名称描述
copy_process创建进程
__exit_signalThis function expects the tasklist_lock write-locked.
de_threadThis function makes sure the current process has its own signal table,* so that flush_signal_handlers can later reset the handlers without* disturbing other processes. (Other processes might share the signal* table via the CLONE_SIGHAND option to clone().)