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  */
   9 struct 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
  25 static 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
  35 static inline void
  36 put_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
  48 extern int warn_no_part;
  49