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block: Do away with the notion of hardsect_size

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Until now we have had a 1:1 mapping between storage device physical
block size and the logical block sized used when addressing the device.
With SATA 4KB drives coming out that will no longer be the case.  The
sector size will be 4KB but the logical block size will remain
512-bytes.  Hence we need to distinguish between the physical block size
and the logical ditto.

This patch renames hardsect_size to logical_block_size.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Martin K. Petersen
2009-05-22 17:17:49 -04:00
committed by Jens Axboe
parent 9bd7de51ee
commit e1defc4ff0
54 changed files with 108 additions and 98 deletions
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6
fs/ntfs/super.c
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@@ -25,7 +25,7 @@
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/spinlock.h>
#include <linux/blkdev.h> /* For bdev_hardsect_size(). */
#include <linux/blkdev.h> /* For bdev_logical_block_size(). */
#include <linux/backing-dev.h>
#include <linux/buffer_head.h>
#include <linux/vfs.h>
@@ -2785,13 +2785,13 @@ static int ntfs_fill_super(struct super_block *sb, void *opt, const int silent)
goto err_out_now;
/* We support sector sizes up to the PAGE_CACHE_SIZE. */
if (bdev_hardsect_size(sb->s_bdev) > PAGE_CACHE_SIZE) {
if (bdev_logical_block_size(sb->s_bdev) > PAGE_CACHE_SIZE) {
if (!silent)
ntfs_error(sb, "Device has unsupported sector size "
"(%i). The maximum supported sector "
"size on this architecture is %lu "
"bytes.",
bdev_hardsect_size(sb->s_bdev),
bdev_logical_block_size(sb->s_bdev),
PAGE_CACHE_SIZE);
goto err_out_now;
}