md: Make mddev->array_size sector-based.

This patch renames the array_size field of struct mddev_s to array_sectors
and converts all instances to use units of 512 byte sectors instead of 1k
blocks.

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

1 files changed, 9 insertions, 7 deletions

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 8f4c70a53210..42a480ba767b 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -3540,7 +3540,7 @@ static sector_t reshape_request(mddev_t *mddev, sector_t sector_nr, int *skipped
                             j == raid6_next_disk(sh->pd_idx, sh->disks))
                                 continue;
                         s = compute_blocknr(sh, j);
-                        if (s < (mddev->array_size<<1)) {
+                        if (s < mddev->array_sectors) {
                                 skipped = 1;
                                 continue;
                         }
@@ -4189,7 +4189,7 @@ static int run(mddev_t *mddev)
         mddev->queue->backing_dev_info.congested_data = mddev;
         mddev->queue->backing_dev_info.congested_fn = raid5_congested;
 
-        mddev->array_size =  mddev->size * (conf->previous_raid_disks -
+        mddev->array_sectors = 2 * mddev->size * (conf->previous_raid_disks -
                                             conf->max_degraded);
 
         blk_queue_merge_bvec(mddev->queue, raid5_mergeable_bvec);
@@ -4413,8 +4413,9 @@ static int raid5_resize(mddev_t *mddev, sector_t sectors)
         raid5_conf_t *conf = mddev_to_conf(mddev);
 
         sectors &= ~((sector_t)mddev->chunk_size/512 - 1);
-        mddev->array_size = (sectors * (mddev->raid_disks-conf->max_degraded))>>1;
-        set_capacity(mddev->gendisk, mddev->array_size << 1);
+        mddev->array_sectors = sectors * (mddev->raid_disks
+                                          - conf->max_degraded);
+        set_capacity(mddev->gendisk, mddev->array_sectors);
         mddev->changed = 1;
         if (sectors/2  > mddev->size && mddev->recovery_cp == MaxSector) {
                 mddev->recovery_cp = mddev->size << 1;
@@ -4547,15 +4548,16 @@ static void end_reshape(raid5_conf_t *conf)
         struct block_device *bdev;
 
         if (!test_bit(MD_RECOVERY_INTR, &conf->mddev->recovery)) {
-                conf->mddev->array_size = conf->mddev->size *
+                conf->mddev->array_sectors = 2 * conf->mddev->size *
                         (conf->raid_disks - conf->max_degraded);
-                set_capacity(conf->mddev->gendisk, conf->mddev->array_size << 1);
+                set_capacity(conf->mddev->gendisk, conf->mddev->array_sectors);
                 conf->mddev->changed = 1;
 
                 bdev = bdget_disk(conf->mddev->gendisk, 0);
                 if (bdev) {
                         mutex_lock(&bdev->bd_inode->i_mutex);
-                        i_size_write(bdev->bd_inode, (loff_t)conf->mddev->array_size << 10);
+                        i_size_write(bdev->bd_inode,
+                                     (loff_t)conf->mddev->array_sectors << 9);
                         mutex_unlock(&bdev->bd_inode->i_mutex);
                         bdput(bdev);
                 }