函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\user_namespace.c Create Date:2022-07-27 12:21:36
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:map_id_range_down_max - Find idmap via binary search in ordered idmap array.* Can only be called if number of mappings exceeds UID_GID_MAP_MAX_BASE_EXTENTS.

函数原型:static struct uid_gid_extent *map_id_range_down_max(unsigned extents, struct uid_gid_map *map, unsigned int id, unsigned int count)

返回类型:struct uid_gid_extent

参数:

类型参数名称
unsignedextents
struct uid_gid_map *map
unsigned intid
unsigned intcount
258  rue -> id from kid; false -> kid from id = false
259  == 0 unless used with map_id_range_down() 等于count
260  d to find 等于id
262  返回:search - binary search an array of elements*@key: pointer to item being searched for*@base: pointer to first element to search*@num: number of elements*@size: size of each element*@cmp: pointer to comparison function
调用者
名称描述
map_id_range_down