block: replace @ext_minors with GENHD_FL_EXT_DEVT

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 <tj@kernel.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 1 insertions, 15 deletions

diff --git a/block/genhd.c b/block/genhd.c
index c2b14aa69d58..eedab5b4685b 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -1024,19 +1024,10 @@ 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;
 
         disk = kmalloc_node(sizeof(struct gendisk),
@@ -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)
 {