函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\kasan\init.c Create Date:2022-07-27 17:25:43
Last Modify:2020-03-12 14:18:49 Copyright©Brick
首页 函数Tree
注解内核,赢得工具下载SCCTEnglish

函数名称：zero_pud_populate

函数原型：static int __ref zero_pud_populate(p4d_t *p4d, unsigned long addr, unsigned long end)

返回类型：int

参数：

类型参数名称
p4d_t *p4d
unsigned longaddr
unsigned longend
149  pud等于pud_offset(p4d, addr)
152  循环
153  next等于pud_addr_end(addr, end)
154  如果IS_ALIGNED(addr, PUD_SIZE)且end减addr大于等于PUD_SIZE则
157  pud_populate( & For dynamically allocated mm_structs, there is a dynamically sized cpumask* at the end of the structure, the size of which depends on the maximum CPU* number the system can see, pud, lm_alias(kasan_early_shadow_pmd))
159  pmd等于pmd_offset(pud, addr)
160  pmd_populate_kernel( & For dynamically allocated mm_structs, there is a dynamically sized cpumask* at the end of the structure, the size of which depends on the maximum CPU* number the system can see, pmd, lm_alias(kasan_early_shadow_pte))
162  继续下一循环
165  如果The "pud_xxx()" functions here are trivial for a folded two-level* setup: the pmd is never bad, and a pmd always exists (as it's folded* into the pud entry)则
168  如果slab_is_available()则
172  否则
177  zero_pmd_populate(pud, addr, next)
178  当pud自加, addr等于next, addr不等于end循环
180  返回:0
调用者
名称描述
zero_p4d_populate