summaryrefslogtreecommitdiff
path: root/drivers/md/md.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/md/md.c')
-rw-r--r--drivers/md/md.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 653d4dcbee23..8f161743e18f 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -2942,6 +2942,8 @@ static int get_array_info(mddev_t * mddev, void __user * arg)
info.ctime = mddev->ctime;
info.level = mddev->level;
info.size = mddev->size;
+ if (info.size != mddev->size) /* overflow */
+ info.size = -1;
info.nr_disks = nr;
info.raid_disks = mddev->raid_disks;
info.md_minor = mddev->md_minor;
@@ -3523,7 +3525,7 @@ static int update_array_info(mddev_t *mddev, mdu_array_info_t *info)
)
return -EINVAL;
/* Check there is only one change */
- if (mddev->size != info->size) cnt++;
+ if (info->size >= 0 && mddev->size != info->size) cnt++;
if (mddev->raid_disks != info->raid_disks) cnt++;
if (mddev->layout != info->layout) cnt++;
if ((state ^ info->state) & (1<<MD_SB_BITMAP_PRESENT)) cnt++;
@@ -3540,7 +3542,7 @@ static int update_array_info(mddev_t *mddev, mdu_array_info_t *info)
else
return mddev->pers->reconfig(mddev, info->layout, -1);
}
- if (mddev->size != info->size)
+ if (info->size >= 0 && mddev->size != info->size)
rv = update_size(mddev, info->size);
if (mddev->raid_disks != info->raid_disks)