summaryrefslogtreecommitdiff
path: root/drivers/md/linear.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/md/linear.c')
-rw-r--r--drivers/md/linear.c25
1 files changed, 20 insertions, 5 deletions
diff --git a/drivers/md/linear.c b/drivers/md/linear.c
index 09658b218474..7a36e38393a1 100644
--- a/drivers/md/linear.c
+++ b/drivers/md/linear.c
@@ -16,7 +16,11 @@
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#include <linux/raid/linear.h>
+#include <linux/blkdev.h>
+#include <linux/raid/md_u.h>
+#include <linux/seq_file.h>
+#include "md.h"
+#include "linear.h"
/*
* find which device holds a particular offset
@@ -97,6 +101,16 @@ static int linear_congested(void *data, int bits)
return ret;
}
+static sector_t linear_size(mddev_t *mddev, sector_t sectors, int raid_disks)
+{
+ linear_conf_t *conf = mddev_to_conf(mddev);
+
+ WARN_ONCE(sectors || raid_disks,
+ "%s does not support generic reshape\n", __func__);
+
+ return conf->array_sectors;
+}
+
static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks)
{
linear_conf_t *conf;
@@ -135,8 +149,8 @@ static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks)
mddev->queue->max_sectors > (PAGE_SIZE>>9))
blk_queue_max_sectors(mddev->queue, PAGE_SIZE>>9);
- disk->num_sectors = rdev->size * 2;
- conf->array_sectors += rdev->size * 2;
+ disk->num_sectors = rdev->sectors;
+ conf->array_sectors += rdev->sectors;
cnt++;
}
@@ -249,7 +263,7 @@ static int linear_run (mddev_t *mddev)
if (!conf)
return 1;
mddev->private = conf;
- mddev->array_sectors = conf->array_sectors;
+ md_set_array_sectors(mddev, linear_size(mddev, 0, 0));
blk_queue_merge_bvec(mddev->queue, linear_mergeable_bvec);
mddev->queue->unplug_fn = linear_unplug;
@@ -283,7 +297,7 @@ static int linear_add(mddev_t *mddev, mdk_rdev_t *rdev)
newconf->prev = mddev_to_conf(mddev);
mddev->private = newconf;
mddev->raid_disks++;
- mddev->array_sectors = newconf->array_sectors;
+ md_set_array_sectors(mddev, linear_size(mddev, 0, 0));
set_capacity(mddev->gendisk, mddev->array_sectors);
return 0;
}
@@ -381,6 +395,7 @@ static struct mdk_personality linear_personality =
.stop = linear_stop,
.status = linear_status,
.hot_add_disk = linear_add,
+ .size = linear_size,
};
static int __init linear_init (void)