diff options
| -rw-r--r-- | drivers/md/md.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 4a4c0f80bdeb..5469ae35ee15 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -5216,6 +5216,16 @@ static int add_new_disk(mddev_t * mddev, mdu_disk_info_t *info) } else super_types[mddev->major_version]. validate_super(mddev, rdev); + if ((info->state & (1<<MD_DISK_SYNC)) && + (!test_bit(In_sync, &rdev->flags) || + rdev->raid_disk != info->raid_disk)) { + /* This was a hot-add request, but events doesn't + * match, so reject it. + */ + export_rdev(rdev); + return -EINVAL; + } + if (test_bit(In_sync, &rdev->flags)) rdev->saved_raid_disk = rdev->raid_disk; else |