check.h

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#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[DISK_MAX_PARTS];
    int next;
    int limit;
    bool access_beyond_eod;
    char *pp_buf;
};

struct parsed_partitions *
check_partition(struct gendisk *, struct block_device *);

static inline void *read_part_sector(struct parsed_partitions *state,
                     sector_t n, Sector *p)
{
    if (n >= get_capacity(state->bdev->bd_disk)) {
        state->access_beyond_eod = true;
        return NULL;
    }
    return read_dev_sector(state->bdev, n, p);
}

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);
    }
}

extern int warn_no_part;