函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\kprobes.c Create Date:2022-07-27 12:39:08
Last Modify:2022-05-22 18:14:58 Copyright©Brick
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函数名称：Disarm a kprobe with text_mutex

函数原型：static int disarm_kprobe(struct kprobe *kp, bool reopt)

返回类型：int

参数：

类型参数名称
struct kprobe *kp
boolreopt
1100  如果此条件成立可能性小(为编译器优化)(Is this kprobe uses ftrace ? )则返回:disarm_kprobe_ftrace(kp)
1103  cpus_read_lock()
1104  mutex_lock( & mutex protecting text section modification (dynamic code patching).* some users need to sleep (allocating memory...) while they hold this lock.* Note: Also protects SMP-alternatives modification on x86.)
1105  Remove the breakpoint of a probe. Must be called with text_mutex locked
1106  mutex_unlock - release the mutex*@lock: the mutex to be released* Unlock a mutex that has been locked by this task previously.* This function must not be used in interrupt context. Unlocking* of a not locked mutex is not allowed.
1107  cpus_read_unlock()
1109  返回:0
调用者
名称描述
__disable_kprobeDisable one kprobe: Make sure called under kprobe_mutex is locked