LXR linux/fs/partitions/check.h

   1#include <linux/pagemap.h>
   2#include <linux/blkdev.h>
   3#include <linux/genhd.h>
   4
   5/*
   6 * add_gd_partition adds a partitions details to the devices partition
   7 * description.
   8 */
   9struct parsed_partitions {
  10        struct block_device *bdev;
  11        char name[BDEVNAME_SIZE];
  12        struct {
  13                sector_t from;
  14                sector_t size;
  15                int flags;
  16                bool has_info;
  17                struct partition_meta_info info;
  18        } parts[DISK_MAX_PARTS];
  19        int next;
  20        int limit;
  21        bool access_beyond_eod;
  22        char *pp_buf;
  23};
  24
  25static inline void *read_part_sector(struct parsed_partitions *state,
  26                                     sector_t n, Sector *p)
  27{
  28        if (n >= get_capacity(state->bdev->bd_disk)) {
  29                state->access_beyond_eod = true;
  30                return NULL;
  31        }
  32        return read_dev_sector(state->bdev, n, p);
  33}
  34
  35static inline void
  36put_partition(struct parsed_partitions *p, int n, sector_t from, sector_t size)
  37{
  38        if (n < p->limit) {
  39                char tmp[1 + BDEVNAME_SIZE + 10 + 1];
  40
  41                p->parts[n].from = from;
  42                p->parts[n].size = size;
  43                snprintf(tmp, sizeof(tmp), " %s%d", p->name, n);
  44                strlcat(p->pp_buf, tmp, PAGE_SIZE);
  45        }
  46}
  47
  48extern int warn_no_part;
  49
  50