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