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 19:03:57
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：ldm_ldmdb_add - Adds a raw VBLK entry to the ldmdb database*@data: Raw VBLK to add to the database*@len: Size of the raw VBLK*@ldb: Cache of the database structures* The VBLKs are sorted into categories. Partitions are also sorted by offset.* N

函数原型：static bool ldm_ldmdb_add(u8 *data, int len, struct ldmdb *ldb)

返回类型：bool

参数：

类型参数名称
u8 *data
intlen
struct ldmdb *ldb
1170  BUG_ON(!data || !ldb)
1172  vb等于开辟内存
1173  如果非vb则
1174  ldm_crit("Out of memory.")
1175  返回:false
1178  如果非ldm_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则
1179  释放内存
1180  返回:false
1185  当:type恒等于Disk Group, version 3
1186  当:type恒等于Disk Group, version 4
1187  添加链表项
1188  退出
1189  当:type恒等于Disk, version 3
1190  当:type恒等于Disk, version 4
1191  添加链表项
1192  退出
1193  当:type恒等于Volume, version 5
1194  添加链表项
1195  退出
1196  当:type恒等于Component, version 3
1197  添加链表项
1198  退出
1199  当:type恒等于Partition, version 3
1202  v等于list_entry - get the struct for this entry*@ptr: the &struct list_head pointer.*@type: the type of the struct this is embedded in.*@member: the name of the list_head within the struct.(item, structvblk, list)
1203  如果disk_id恒等于disk_id且 VBLK Partition 大于 VBLK Partition 则
1205  添加链表项
1206  返回:true
1209  添加链表项
1210  退出
1212  返回:true
调用者
名称描述
ldm_frag_commitldm_frag_commit - Validate fragmented VBLKs and add them to the database*@frags: Linked list of VBLK fragments*@ldb: Cache of the database structures* Now that all the fragmented VBLKs have been collected, they must be added to* the database for later use
ldm_get_vblksldm_get_vblks - Read the on-disk database of VBLKs into memory*@state: Partition check state including device holding the LDM Database*@base: Offset, into @state->bdev, of the database*@ldb: Cache of the database structures* To use the information from