函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\memcontrol.c Create Date:2022-07-27 17:49:27
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：swap_max_write

函数原型：static ssize_t swap_max_write(struct kernfs_open_file *of, char *buf, size_t nbytes, loff_t off)

返回类型：ssize_t

参数：

类型参数名称
struct kernfs_open_file *of
char *buf
size_tnbytes
loff_toff
7067  memcg等于mem_cgroup_from_css(of_css(of))
7071  buf等于strstrip(buf)
7072  err等于page_counter_memparse - memparse() for page counter limits*@buf: string to parse*@max: string meaning maximum possible value*@nr_pages: returns the result in number of pages* Returns -EINVAL, or 0 and @nr_pages on success. @nr_pages will be
7073  如果err则返回:err
7076  xchg( & max, max)
7078  返回:nbytes