linux/block/partitions/check.h
Christoph Hellwig 581e26004a block: move block layer internals out of include/linux/genhd.h
None of this needs to be exposed to drivers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-25 09:50:08 -06:00

71 lines
2.1 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#include <linux/pagemap.h>
#include <linux/blkdev.h>
#include <linux/genhd.h>
#include "../blk.h"
/*
* add_gd_partition adds a partitions details to the devices partition
* description.
*/
struct parsed_partitions {
struct block_device *bdev;
char name[BDEVNAME_SIZE];
struct {
sector_t from;
sector_t size;
int flags;
bool has_info;
struct partition_meta_info info;
} *parts;
int next;
int limit;
bool access_beyond_eod;
char *pp_buf;
};
typedef struct {
struct page *v;
} Sector;
void *read_part_sector(struct parsed_partitions *state, sector_t n, Sector *p);
static inline void put_dev_sector(Sector p)
{
put_page(p.v);
}
static inline void
put_partition(struct parsed_partitions *p, int n, sector_t from, sector_t size)
{
if (n < p->limit) {
char tmp[1 + BDEVNAME_SIZE + 10 + 1];
p->parts[n].from = from;
p->parts[n].size = size;
snprintf(tmp, sizeof(tmp), " %s%d", p->name, n);
strlcat(p->pp_buf, tmp, PAGE_SIZE);
}
}
/* detection routines go here in alphabetical order: */
int adfspart_check_ADFS(struct parsed_partitions *state);
int adfspart_check_CUMANA(struct parsed_partitions *state);
int adfspart_check_EESOX(struct parsed_partitions *state);
int adfspart_check_ICS(struct parsed_partitions *state);
int adfspart_check_POWERTEC(struct parsed_partitions *state);
int aix_partition(struct parsed_partitions *state);
int amiga_partition(struct parsed_partitions *state);
int atari_partition(struct parsed_partitions *state);
int cmdline_partition(struct parsed_partitions *state);
int efi_partition(struct parsed_partitions *state);
int ibm_partition(struct parsed_partitions *);
int karma_partition(struct parsed_partitions *state);
int ldm_partition(struct parsed_partitions *state);
int mac_partition(struct parsed_partitions *state);
int msdos_partition(struct parsed_partitions *state);
int osf_partition(struct parsed_partitions *state);
int sgi_partition(struct parsed_partitions *state);
int sun_partition(struct parsed_partitions *state);
int sysv68_partition(struct parsed_partitions *state);
int ultrix_partition(struct parsed_partitions *state);