projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #include <linux/pagemap.h> |
| 2 | #include <linux/blkdev.h> | |
| 3 | ||
| 4 | /* | |
| 5 | * add_gd_partition adds a partitions details to the devices partition | |
| 6 | * description. | |
| 7 | */ | |
| 1da177e4 | 8 | struct parsed_partitions { |
| 1493bf21 | 9 | struct block_device *bdev; |
| 1da177e4 LT |
10 | char name[BDEVNAME_SIZE]; |
| 11 | struct { | |
| 12 | sector_t from; | |
| 13 | sector_t size; | |
| 14 | int flags; | |
| 689d6fac | 15 | } parts[DISK_MAX_PARTS]; |
| 1da177e4 LT |
16 | int next; |
| 17 | int limit; | |
| b403a98e | 18 | bool access_beyond_eod; |
| 9c867fbe | 19 | char *pp_buf; |
| 1da177e4 LT |
20 | }; |
| 21 | ||
| 1493bf21 TH |
22 | static inline void *read_part_sector(struct parsed_partitions *state, |
| 23 | sector_t n, Sector *p) | |
| 24 | { | |
| b403a98e TH |
25 | if (n >= get_capacity(state->bdev->bd_disk)) { |
| 26 | state->access_beyond_eod = true; | |
| 27 | return NULL; | |
| 28 | } | |
| 1493bf21 TH |
29 | return read_dev_sector(state->bdev, n, p); |
| 30 | } | |
| 31 | ||
| 1da177e4 LT |
32 | static inline void |
| 33 | put_partition(struct parsed_partitions *p, int n, sector_t from, sector_t size) | |
| 34 | { | |
| 35 | if (n < p->limit) { | |
| 9c867fbe AD |
36 | char tmp[1 + BDEVNAME_SIZE + 10 + 1]; |
| 37 | ||
| 1da177e4 LT |
38 | p->parts[n].from = from; |
| 39 | p->parts[n].size = size; | |
| 9c867fbe AD |
40 | snprintf(tmp, sizeof(tmp), " %s%d", p->name, n); |
| 41 | strlcat(p->pp_buf, tmp, PAGE_SIZE); | |
| 1da177e4 LT |
42 | } |
| 43 | } | |
| 44 | ||
| 45 | extern int warn_no_part; | |
| 46 |