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Diffstat (limited to 'drivers/md/raid1.c')
-rw-r--r--drivers/md/raid1.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index c3b4772cfae..3f5234fe359 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -811,9 +811,12 @@ static int raid1_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
{
conf_t *conf = mddev->private;
int found = 0;
- int mirror;
+ int mirror = 0;
mirror_info_t *p;
+ if (rdev->saved_raid_disk >= 0 &&
+ conf->mirrors[rdev->saved_raid_disk].rdev == NULL)
+ mirror = rdev->saved_raid_disk;
for (mirror=0; mirror < mddev->raid_disks; mirror++)
if ( !(p=conf->mirrors+mirror)->rdev) {
@@ -830,6 +833,8 @@ static int raid1_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
p->head_position = 0;
rdev->raid_disk = mirror;
found = 1;
+ if (rdev->saved_raid_disk != mirror)
+ conf->fullsync = 1;
p->rdev = rdev;
break;
}