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block: replace @ext_minors with GENHD_FL_EXT_DEVT

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With previous changes, it's meaningless to limit the number of
partitions.  Replace @ext_minors with GENHD_FL_EXT_DEVT such that
setting the flag allows the disk to have maximum number of allowed
partitions (only limited by the number of entries in parsed_partitions
as determined by MAX_PART constant).

This kills not-too-pretty alloc_disk_ext[_node]() functions and makes
@minors parameter to alloc_disk[_node]() unnecessary.  The parameter
is left alone to avoid disturbing the users.

Signed-off-by: Tejun Heo <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Tejun Heo 2008-08-25 19:56:16 +09:00 • committed by Jens Axboe
commit 689d6fac40
5 changed files with 17 additions and 42 deletions
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16
block/genhd.c
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@ -1024,18 +1024,9 @@ struct gendisk *alloc_disk(int minors)
{
return alloc_disk_node(minors, -1);
}
EXPORT_SYMBOL(alloc_disk);
struct gendisk *alloc_disk_node(int minors, int node_id)
{
return alloc_disk_ext_node(minors, 0, node_id);
}
struct gendisk *alloc_disk_ext(int minors, int ext_minors)
{
return alloc_disk_ext_node(minors, ext_minors, -1);
}
struct gendisk *alloc_disk_ext_node(int minors, int ext_minors, int node_id)
{
struct gendisk *disk;
@ -1054,7 +1045,6 @@ struct gendisk *alloc_disk_ext_node(int minors, int ext_minors, int node_id)
disk->part_tbl->part[0] = &disk->part0;
disk->minors = minors;
disk->ext_minors = ext_minors;
rand_initialize_disk(disk);
disk_to_dev(disk)->class = &block_class;
disk_to_dev(disk)->type = &disk_type;
@ -1065,11 +1055,7 @@ struct gendisk *alloc_disk_ext_node(int minors, int ext_minors, int node_id)
}
return disk;
}
EXPORT_SYMBOL(alloc_disk);
EXPORT_SYMBOL(alloc_disk_node);
EXPORT_SYMBOL(alloc_disk_ext);
EXPORT_SYMBOL(alloc_disk_ext_node);
struct kobject *get_disk(struct gendisk *disk)
{