函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\nommu.c Create Date:2022-07-27 16:04:34
Last Modify:2020-03-17 21:26:27 Copyright©Brick
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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 __meminit init_user_reserve(void)

返回类型:int

参数:

1857  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
1859  sysctl_user_reserve_kbytes等于两数取小(free_kbytes / 32, 1UL << 17)
1860  返回:0