函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:block\partitions\efi.c Create Date:2022-07-27 19:06:55
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：alloc_read_gpt_header(): Allocates GPT header, reads into it from disk*@state: disk parsed partitions*@lba: the Logical Block Address of the partition table* Description: returns GPT header on success, NULL on error. Allocates

函数原型：static gpt_header *alloc_read_gpt_header(struct parsed_partitions *state, u64 lba)

返回类型：gpt_header

参数：

类型参数名称
struct parsed_partitions *state
u64lba
312  ssz等于bdev_logical_block_size(bdev)
314  gpt等于开辟内存
315  如果非gpt则返回:NULL
318  如果ad_lba(): Read bytes from disk, starting at given LBA*@state: disk parsed partitions*@lba: the Logical Block Address of the partition table*@buffer: destination buffer*@count: bytes to read* Description: Reads @count bytes from @state->bdev into @buffer.小于ssz则
319  释放内存
320  gpt = NULL
321  返回:NULL
324  返回:gpt
调用者
名称描述
is_gpt_valids_gpt_valid() - tests one GPT header and PTEs for validity*@state: disk parsed partitions*@lba: logical block address of the GPT header to test*@gpt: GPT header ptr, filled on return.*@ptes: PTEs ptr, filled on return.