release/src-rt-6.x.4708/linux/linux-2.6.36/fs/partitions/check.h

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