Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:block\partitions\ldm.c Create Date:2022-07-28 17:28:33
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name: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

Proto:static bool ldm_ldmdb_add(u8 *data, int len, struct ldmdb *ldb)

Type:bool

Parameter:

TypeParameterName
u8 *data
intlen
struct ldmdb *ldb
1170  BUG_ON(!data || !ldb)
1172  vb = Allocation memory
1173  If Not vb Then
1174  ldm_crit("Out of memory.")
1175  Return false
1178  If Not 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 Then
1179  kfree(vb)
1180  Return false
1185  Case type == Disk Group, version 3
1186  Case type == Disk Group, version 4
1187  list_add - add a new entry*@new: new entry to be added*@head: list head to add it after* Insert a new entry after the specified head.* This is good for implementing stacks.
1188  Break
1189  Case type == Disk, version 3
1190  Case type == Disk, version 4
1191  list_add - add a new entry*@new: new entry to be added*@head: list head to add it after* Insert a new entry after the specified head.* This is good for implementing stacks.
1192  Break
1193  Case type == Volume, version 5
1194  list_add - add a new entry*@new: new entry to be added*@head: list head to add it after* Insert a new entry after the specified head.* This is good for implementing stacks.
1195  Break
1196  Case type == Component, version 3
1197  list_add - add a new entry*@new: new entry to be added*@head: list head to add it after* Insert a new entry after the specified head.* This is good for implementing stacks.
1198  Break
1199  Case type == Partition, version 3
1202  v = 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  If disk_id == disk_id && VBLK Partition > VBLK Partition Then
1209  list_add_tail - add a new entry*@new: new entry to be added*@head: list head to add it before* Insert a new entry before the specified head.* This is useful for implementing queues.
1210  Break
1212  Return true
Caller
NameDescribe
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