函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\trace.c Create Date:2022-07-27 13:07:25
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：tracing_saved_cmdlines_size_write

函数原型：static ssize_t tracing_saved_cmdlines_size_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos)

返回类型：ssize_t

参数：

类型参数名称
struct file *filp
const char __user *ubuf
size_tcnt
loff_t *ppos
5320  ret等于kstrtoul_from_user(ubuf, cnt, 10, & val)
5321  如果ret则返回:ret
5325  如果非val或val大于This controls the default maximum pid allocated to a process则返回:负EINVAL
5328  ret等于tracing_resize_saved_cmdlines((unsignedint)val)
5329  如果ret小于0则返回:ret
5332  ppos加等于cnt
5334  返回:cnt