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/* SPDX-License-Identifier: GPL-2.0 */
#include <linux/pagemap.h>
#include <linux/blkdev.h>
#include <linux/genhd.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;
};
void free_partitions(struct parsed_partitions *state);
struct parsed_partitions *
check_partition(struct gendisk *, struct block_device *);
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);
}
}
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