函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\genhd.h Create Date:2022-07-27 06:45:35
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：hd_ref_init

函数原型：static inline int hd_ref_init(struct hd_struct *part)

返回类型：int

参数：

类型参数名称
struct hd_struct *part
694  如果percpu_ref_init - initialize a percpu refcount*@ref: percpu_ref to initialize*@release: function which will be called when refcount hits 0*@flags: PERCPU_REF_INIT_* flags*@gfp: allocation mask to use* Initializes @ref则返回:负ENOMEM
697  返回:0
调用者
名称描述
__alloc_disk_node
add_partitionMust be called either with bd_mutex held, before a disk can be opened or* after all disk users are gone.