diff options
Diffstat (limited to 'drivers/md/raid1.c')
| -rw-r--r-- | drivers/md/raid1.c | 35 |
1 files changed, 26 insertions, 9 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index e2466425d9ca..b4f4badc0068 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -31,10 +31,13 @@ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ -#include "dm-bio-list.h" #include <linux/delay.h> -#include <linux/raid/raid1.h> -#include <linux/raid/bitmap.h> +#include <linux/blkdev.h> +#include <linux/seq_file.h> +#include "md.h" +#include "dm-bio-list.h" +#include "raid1.h" +#include "bitmap.h" #define DEBUG 0 #if DEBUG @@ -1723,7 +1726,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i return 0; } - max_sector = mddev->size << 1; + max_sector = mddev->dev_sectors; if (sector_nr >= max_sector) { /* If we aborted, we need to abort the * sync on the 'current' bitmap chunk (there will @@ -1919,6 +1922,14 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i return nr_sectors; } +static sector_t raid1_size(mddev_t *mddev, sector_t sectors, int raid_disks) +{ + if (sectors) + return sectors; + + return mddev->dev_sectors; +} + static int run(mddev_t *mddev) { conf_t *conf; @@ -2048,7 +2059,7 @@ static int run(mddev_t *mddev) /* * Ok, everything is just fine now */ - mddev->array_sectors = mddev->size * 2; + md_set_array_sectors(mddev, raid1_size(mddev, 0, 0)); mddev->queue->unplug_fn = raid1_unplug; mddev->queue->backing_dev_info.congested_fn = raid1_congested; @@ -2089,6 +2100,9 @@ static int stop(mddev_t *mddev) /* need to kick something here to make sure I/O goes? */ } + raise_barrier(conf); + lower_barrier(conf); + md_unregister_thread(mddev->thread); mddev->thread = NULL; blk_sync_queue(mddev->queue); /* the unplug fn references 'conf'*/ @@ -2110,15 +2124,17 @@ static int raid1_resize(mddev_t *mddev, sector_t sectors) * any io in the removed space completes, but it hardly seems * worth it. */ - mddev->array_sectors = sectors; + md_set_array_sectors(mddev, raid1_size(mddev, sectors, 0)); + if (mddev->array_sectors > raid1_size(mddev, sectors, 0)) + return -EINVAL; set_capacity(mddev->gendisk, mddev->array_sectors); mddev->changed = 1; - if (mddev->array_sectors / 2 > mddev->size && + if (sectors > mddev->dev_sectors && mddev->recovery_cp == MaxSector) { - mddev->recovery_cp = mddev->size << 1; + mddev->recovery_cp = mddev->dev_sectors; set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); } - mddev->size = mddev->array_sectors / 2; + mddev->dev_sectors = sectors; mddev->resync_max_sectors = sectors; return 0; } @@ -2264,6 +2280,7 @@ static struct mdk_personality raid1_personality = .spare_active = raid1_spare_active, .sync_request = sync_request, .resize = raid1_resize, + .size = raid1_size, .check_reshape = raid1_reshape, .quiesce = raid1_quiesce, }; |