md: Make mddev->size sector-based.

This patch renames the "size" field of struct mddev_s to "dev_sectors"
and stores the number of 512-byte sectors instead of the number of
1K-blocks in it.

All users of that field, including raid levels 1,4-6,10, are adjusted
accordingly. This simplifies the code a bit because it allows to get
rid of a couple of divisions/multiplications by two.

In order to make checkpatch happy, some minor coding style issues
have also been addressed. In particular, size_store() now uses
strict_strtoull() instead of simple_strtoull().

Signed-off-by: Andre Noll <maan@systemlinux.org>
Signed-off-by: NeilBrown <neilb@suse.de>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/md/md.h b/drivers/md/md.h
index bede26c9d4a9..946121236235 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -142,7 +142,8 @@ struct mddev_s
         char                            clevel[16];
         int                             raid_disks;
         int                             max_disks;
-        sector_t                        size; /* used size of component devices */
+        sector_t                        dev_sectors;    /* used size of
+                                                         * component devices */
         sector_t                        array_sectors; /* exported array size */
         __u64                           events;