[PATCH] scsi/sd: Fix size output in MB
From: Simon Arlott
Date: Sat Aug 30 2008 - 10:08:57 EST
The capacity printk'd in bytes is divided by 1000000,
whereas 1048576 would be more consistent with the rest
of the OS and disk-related utilities ('df' etc.).
This change replaces the (sz - (sz/625 - 974))/1950
calculation with a simple right shift by 11 bits
(/2048).
Signed-off-by: Simon Arlott <simon@xxxxxxxxxxx>
---
drivers/scsi/sd.c | 6 ++----
1 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index e5e7d78..e6fd6fd 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -1441,10 +1441,8 @@ got_data:
sector_t mb = sz;
blk_queue_hardsect_size(queue, hard_sector);
- /* avoid 64-bit division on 32-bit platforms */
- sector_div(sz, 625);
- mb -= sz - 974;
- sector_div(mb, 1950);
+ /* Convert to megabytes (/2048) */
+ mb = sz >> 11;
sd_printk(KERN_NOTICE, sdkp,
"%llu %d-byte hardware sectors (%llu MB)\n",
--
1.5.6.5
--
Simon Arlott
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/