[PATCH] block device size cleanups

for partitioned devices we use ->nr_sect to find the size; blk_size[] is
still used for things like floppy.c, etc.; that will go away later.

There was only one place (do_open()) that needed it - the rest uses
->bd_inode->i_size now.  So blkdev_size_in_bytes() is gone - it's
expanded in its only caller.  Same place (do_open()) finds the partition
offset and stores it in new field ->bd_offset.  As the result, call of
get_gendisk() is gone from the IO path - in blk_partition_remap() we
just add ->bd_offset.

Additionally, we take driver probing (get_blkfops()) outside of ->bd_sem
(again, do_open()) - that will allow to kill ad-hackery in check_partitions()
(opening bdev by hand).

1 files changed, 0 insertions, 14 deletions

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 297cb0ba10c1..7460a98bb0b3 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -389,20 +389,6 @@ extern inline unsigned int block_size(struct block_device *bdev)
 	return bdev->bd_block_size;
 }
 
-static inline loff_t blkdev_size_in_bytes(kdev_t dev)
-{
-#if 0
-	if (blk_size_in_bytes[major(dev)])
-		return blk_size_in_bytes[major(dev)][minor(dev)];
-	else
-#endif
-	if (blk_size[major(dev)])
-		return (loff_t) blk_size[major(dev)][minor(dev)]
-			<< BLOCK_SIZE_BITS;
-	else
-		return 0;
-}
-
 typedef struct {struct page *v;} Sector;
 
 unsigned char *read_dev_sector(struct block_device *, unsigned long, Sector *);