函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:block\partitions\ldm.c Create Date:2022-07-27 19:03:32
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：ldm_parse_dsk4 - Read a raw VBLK Disk object into a vblk structure*@buffer: Block of data being worked on*@buflen: Size of the block of data*@vb: In-memory vblk in which to return information* Read a raw VBLK Disk object (version 4) into a vblk structure

函数原型：static bool ldm_parse_dsk4(const u8 *buffer, int buflen, struct vblk *vb)

返回类型：bool

参数：

类型参数名称
const u8 *buffer
intbuflen
struct vblk *vb
900  BUG_ON(!buffer || !vb)
902  r_objid等于ldm_relative - Calculate the next relative offset*@buffer: Block of data being worked on*@buflen: Size of the block of data*@base: Size of the previous fixed width fields*@offset: Cumulative size of the previous variable-width fields* Because many of the
903  r_name等于ldm_relative - Calculate the next relative offset*@buffer: Block of data being worked on*@buflen: Size of the block of data*@base: Size of the previous fixed width fields*@offset: Cumulative size of the previous variable-width fields* Because many of the
904  len等于r_name
905  如果len小于0则返回:false
908  len加等于VBLK_SIZE_DSK4
909  如果len不等于get_unaligned_be32(buffer + 0x14)则返回:false
912  disk等于disk
913  uuid_copy( & VBLK Disk , (uuid_t * )(buffer + 0x18 + r_name))
914  返回:true
调用者
名称描述
ldm_parse_vblkldm_parse_vblk - Read a raw VBLK object into a vblk structure*@buf: Block of data being worked on*@len: Size of the block of data*@vb: In-memory vblk in which to return information* Read a raw VBLK object into a vblk structure