Function report |
Source Code:block\partitions\msdos.c |
Create Date:2022-07-28 17:29:17 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Name:Create devices for each logical partition in an extended partition.* The logical partitions form a linked list, with each entry being* a partition table with two entries. The first entry* is the real data partition (with a start relative to the partition
Proto:static void parse_extended(struct parsed_partitions *state, sector_t first_sector, sector_t first_size, unsigned int disksig)
Type:void
Parameter:
Type | Parameter | Name |
---|---|---|
struct parsed_partitions * | state | |
sector_t | first_sector | |
sector_t | first_size | |
unsigned int | disksig |
129 | sector_size = bdev_logical_block_size(bdev) / 512 |
131 | loopct = 0 |
134 | this_sector = first_sector |
135 | this_size = first_size |
137 | When 1 cycle |
138 | If ++loopct > 100 Then Return |
142 | data = read_part_sector(state, this_sector, & sect) |
143 | If Not data Then Return |
146 | If Not msdos_magic_present(data + 510) Then Go to done |
166 | If Not nr_sects(p) || is_extended_partition(p) Then Continue |
171 | offs = start_sect(p) * sector_size |
172 | size = nr_sects(p) * sector_size |
173 | next = this_sector + offs |
174 | If i >= 2 Then |
177 | If next < first_sector Then Continue |
179 | If next + size > first_sector + first_size Then Continue |
183 | put_partition(state, next, next, size) |
185 | If SYS_IND(p) == LINUX_RAID_PARTITION Then flags = ADDPART_FLAG_RAID |
187 | loopct = 0 |
198 | p -= 4 |
201 | Break |
205 | this_sector = first_sector + start_sect(p) * sector_size |
206 | this_size = nr_sects(p) * sector_size |
207 | put_dev_sector(sect) |
209 | done : |
210 | put_dev_sector(sect) |
Name | Describe |
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msdos_partition |
Source code conversion tool public plug-in interface | X |
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Support c/c++/esqlc/java Oracle/Informix/Mysql Plug-in can realize: logical Report Code generation and batch code conversion |