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md: centralize ->array_sectors modifications

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Get personalities out of the business of directly modifying
->array_sectors.  Lays groundwork to introduce policy on when
->array_sectors can be modified.

Reviewed-by: Andre Noll <maan@systemlinux.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams
2009-03-31 14:59:03 +11:00
parent 80c3a6ce4b
commit 1f403624bd
9 changed files with 20 additions and 11 deletions
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8
drivers/md/raid5.c
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@@ -4474,7 +4474,7 @@ 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_sectors = raid5_size(mddev, 0, 0);
md_set_array_sectors(mddev, raid5_size(mddev, 0, 0));
blk_queue_merge_bvec(mddev->queue, raid5_mergeable_bvec);
@@ -4698,7 +4698,8 @@ static int raid5_resize(mddev_t *mddev, sector_t sectors)
* worth it.
*/
sectors &= ~((sector_t)mddev->chunk_size/512 - 1);
mddev->array_sectors = raid5_size(mddev, sectors, mddev->raid_disks);
md_set_array_sectors(mddev, raid5_size(mddev, sectors,
mddev->raid_disks));
set_capacity(mddev->gendisk, mddev->array_sectors);
mddev->changed = 1;
if (sectors > mddev->dev_sectors && mddev->recovery_cp == MaxSector) {
@@ -4836,7 +4837,8 @@ static void end_reshape(raid5_conf_t *conf)
if (!test_bit(MD_RECOVERY_INTR, &conf->mddev->recovery)) {
mddev_t *mddev = conf->mddev;
mddev->array_sectors = raid5_size(mddev, 0, conf->raid_disks);
md_set_array_sectors(mddev, raid5_size(mddev, 0,
conf->raid_disks));
set_capacity(mddev->gendisk, mddev->array_sectors);
mddev->changed = 1;
conf->previous_raid_disks = conf->raid_disks;