70 lines · c
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 partition8 * description.9 */10struct 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 26typedef struct {27 struct folio *v;28} Sector;29 30void *read_part_sector(struct parsed_partitions *state, sector_t n, Sector *p);31static inline void put_dev_sector(Sector p)32{33 folio_put(p.v);34}35 36static inline void37put_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: */50int adfspart_check_ADFS(struct parsed_partitions *state);51int adfspart_check_CUMANA(struct parsed_partitions *state);52int adfspart_check_EESOX(struct parsed_partitions *state);53int adfspart_check_ICS(struct parsed_partitions *state);54int adfspart_check_POWERTEC(struct parsed_partitions *state);55int aix_partition(struct parsed_partitions *state);56int amiga_partition(struct parsed_partitions *state);57int atari_partition(struct parsed_partitions *state);58int cmdline_partition(struct parsed_partitions *state);59int efi_partition(struct parsed_partitions *state);60int ibm_partition(struct parsed_partitions *);61int karma_partition(struct parsed_partitions *state);62int ldm_partition(struct parsed_partitions *state);63int mac_partition(struct parsed_partitions *state);64int msdos_partition(struct parsed_partitions *state);65int osf_partition(struct parsed_partitions *state);66int sgi_partition(struct parsed_partitions *state);67int sun_partition(struct parsed_partitions *state);68int sysv68_partition(struct parsed_partitions *state);69int ultrix_partition(struct parsed_partitions *state);70