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 17:45:35
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：mem_cgroup_force_empty_write

函数原型：static ssize_t mem_cgroup_force_empty_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
3180  memcg等于mem_cgroup_from_css(of_css(of))
3182  如果mem_cgroup_is_root(memcg)则返回:负EINVAL
3184  返回:如果Reclaims as many pages from the given memcg as possible.* Caller is responsible for holding css reference for memcg.否则nbytes