函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\wait_bit.h Create Date:2022-07-27 06:43:32
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：wait_on_bit_lock - wait for a bit to be cleared, when wanting to set it*@word: the word being waited on, a kernel virtual address*@bit: the bit of the word being waited on*@mode: the task state to sleep in

函数原型：static inline int wait_on_bit_lock(unsigned long *word, int bit, unsigned mode)

返回类型：int

参数：

类型参数名称
unsigned long *word
intbit
unsignedmode
181  might_sleep()
182  如果非st_and_set_bit - Set a bit and return its old value*@nr: Bit to set*@addr: Address to count from* This is an atomic fully-ordered operation (implied full memory barrier).则返回:0
184  返回:out_of_line_wait_on_bit_lock(word, bit, bit_wait, mode)