• Alexander Viro's avatar
    [PATCH] split "gendisk" to be per-disk, part 1 · d7536161
    Alexander Viro authored
    now that gendisks don't have shared stuff (we used to set blk_size[]
    from ->sizes) we can start splitting them into per-disk ones.
    
    Step 1:
      we introduce a new field - ->first_minor (to be merged with ->major
      into dev_t of entire disk once all gendisks are split).  All arrays
      are assumed to start at that minor (i.e.  gd->part[minor] got replaced
      with gd->part[minor - gd->first_minor], etc.).  get_gendisk() is
      taught to pick the right gendisk if there are several with the same
      major.
    d7536161
blkpg.c 7.71 KB