函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\mmap.c Create Date:2022-07-27 16:19:05
Last Modify:2020-03-12 14:18:49 Copyright©Brick
首页 函数Tree
注解内核,赢得工具下载SCCTEnglish

函数名称：Initialise sysctl_user_reserve_kbytes.* This is intended to prevent a user from starting a single memory hogging* process, such that they cannot recover (kill the hog) in OVERCOMMIT_NEVER* mode.* The default value is min(3% of free memory, 128MB)

函数原型：static int init_user_reserve(void)

返回类型：int

参数：无

3650  free_kbytes等于global_zone_page_state( First 128 byte cacheline (assuming 64 bit words) )左移PAGE_SHIFT determines the page size 减10位
3652  sysctl_user_reserve_kbytes等于两数取小(free_kbytes / 32, 1UL << 17)
3653  返回:0
调用者
名称描述
reserve_mem_notifierReinititalise user and admin reserves if memory is added or removed