函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\printk\printk.c Create Date:2022-07-27 11:05:47
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：mpute the message size including the padding bytes

函数原型：static unsigned int msg_used_size(u16 text_len, u16 dict_len, unsigned int *pad_len)

返回类型：unsigned int

参数：

类型参数名称
u16text_len
u16dict_len
unsigned int *pad_len
570  size等于sizeof(structprintk_log)加text_len加dict_len
571  pad_len等于负size按位与cord buffer 减1
572  size加等于pad_len
574  返回:size
调用者
名称描述
truncate_msg
log_storesert record into the buffer, discard old ones, update heads