函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\ring_buffer.c Create Date:2022-07-27 12:58:54
Last Modify:2020-03-17 19:30:04 Copyright©Brick
首页 函数Tree
注解内核,赢得工具下载SCCTEnglish

函数名称：rb_allocate_pages

函数原型：static int rb_allocate_pages(struct ring_buffer_per_cpu *cpu_buffer, unsigned long nr_pages)

返回类型：int

参数：

类型参数名称
struct ring_buffer_per_cpu *cpu_buffer
unsigned longnr_pages
1263  LIST_HEAD(pages)
1265  WARN_ON(!nr_pages)
1267  如果__rb_allocate_pages(nr_pages, & pages, cpu)则返回:负ENOMEM
1275  pages等于next
1276  删除链表项
1278  nr_pages等于nr_pages
1280  _check_pages - integrity check of buffer pages*@cpu_buffer: CPU buffer with pages to test* As a safety measure we check to make sure the data pages have not* been corrupted.
1282  返回:0
调用者
名称描述
rb_allocate_cpu_buffer