1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 #include <linux/pagemap.h> 2 #include <linux/pagemap.h>
3 #include <linux/blkdev.h> 3 #include <linux/blkdev.h>
4 #include "../blk.h" !! 4 #include <linux/genhd.h>
5 5
6 /* 6 /*
7 * add_gd_partition adds a partitions details 7 * add_gd_partition adds a partitions details to the devices partition
8 * description. 8 * description.
9 */ 9 */
10 struct parsed_partitions { 10 struct parsed_partitions {
11 struct gendisk *disk; !! 11 struct block_device *bdev;
12 char name[BDEVNAME_SIZE]; 12 char name[BDEVNAME_SIZE];
13 struct { 13 struct {
14 sector_t from; 14 sector_t from;
15 sector_t size; 15 sector_t size;
16 int flags; 16 int flags;
17 bool has_info; 17 bool has_info;
18 struct partition_meta_info inf 18 struct partition_meta_info info;
19 } *parts; 19 } *parts;
20 int next; 20 int next;
21 int limit; 21 int limit;
22 bool access_beyond_eod; 22 bool access_beyond_eod;
23 char *pp_buf; 23 char *pp_buf;
24 }; 24 };
25 25
26 typedef struct { !! 26 void free_partitions(struct parsed_partitions *state);
27 struct folio *v; <<
28 } Sector; <<
29 27
30 void *read_part_sector(struct parsed_partition !! 28 struct parsed_partitions *
31 static inline void put_dev_sector(Sector p) !! 29 check_partition(struct gendisk *, struct block_device *);
>> 30
>> 31 static inline void *read_part_sector(struct parsed_partitions *state,
>> 32 sector_t n, Sector *p)
32 { 33 {
33 folio_put(p.v); !! 34 if (n >= get_capacity(state->bdev->bd_disk)) {
>> 35 state->access_beyond_eod = true;
>> 36 return NULL;
>> 37 }
>> 38 return read_dev_sector(state->bdev, n, p);
34 } 39 }
35 40
36 static inline void 41 static inline void
37 put_partition(struct parsed_partitions *p, int 42 put_partition(struct parsed_partitions *p, int n, sector_t from, sector_t size)
38 { 43 {
39 if (n < p->limit) { 44 if (n < p->limit) {
40 char tmp[1 + BDEVNAME_SIZE + 1 45 char tmp[1 + BDEVNAME_SIZE + 10 + 1];
41 46
42 p->parts[n].from = from; 47 p->parts[n].from = from;
43 p->parts[n].size = size; 48 p->parts[n].size = size;
44 snprintf(tmp, sizeof(tmp), " % 49 snprintf(tmp, sizeof(tmp), " %s%d", p->name, n);
45 strlcat(p->pp_buf, tmp, PAGE_S 50 strlcat(p->pp_buf, tmp, PAGE_SIZE);
46 } 51 }
47 } 52 }
48 53
49 /* detection routines go here in alphabetical !! 54 extern int warn_no_part;
50 int adfspart_check_ADFS(struct parsed_partitio !! 55
51 int adfspart_check_CUMANA(struct parsed_partit <<
52 int adfspart_check_EESOX(struct parsed_partiti <<
53 int adfspart_check_ICS(struct parsed_partition <<
54 int adfspart_check_POWERTEC(struct parsed_part <<
55 int aix_partition(struct parsed_partitions *st <<
56 int amiga_partition(struct parsed_partitions * <<
57 int atari_partition(struct parsed_partitions * <<
58 int cmdline_partition(struct parsed_partitions <<
59 int efi_partition(struct parsed_partitions *st <<
60 int ibm_partition(struct parsed_partitions *); <<
61 int karma_partition(struct parsed_partitions * <<
62 int ldm_partition(struct parsed_partitions *st <<
63 int mac_partition(struct parsed_partitions *st <<
64 int msdos_partition(struct parsed_partitions * <<
65 int osf_partition(struct parsed_partitions *st <<
66 int sgi_partition(struct parsed_partitions *st <<
67 int sun_partition(struct parsed_partitions *st <<
68 int sysv68_partition(struct parsed_partitions <<
69 int ultrix_partition(struct parsed_partitions <<
70 56
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