diff options
| -rw-r--r-- | drivers/md/md.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 9ef21d9b8e27..26b3d2879d93 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1070,10 +1070,13 @@ static int super_90_validate(mddev_t *mddev, mdk_rdev_t *rdev) mddev->bitmap_info.default_offset; } else if (mddev->pers == NULL) { - /* Insist on good event counter while assembling */ + /* Insist on good event counter while assembling, except + * for spares (which don't need an event count) */ ++ev1; - if (ev1 < mddev->events) - return -EINVAL; + if (sb->disks[rdev->desc_nr].state & ( + (1<<MD_DISK_SYNC) | (1 << MD_DISK_ACTIVE))) + if (ev1 < mddev->events) + return -EINVAL; } else if (mddev->bitmap) { /* if adding to array with a bitmap, then we can accept an * older device ... but not too old. @@ -1469,10 +1472,14 @@ static int super_1_validate(mddev_t *mddev, mdk_rdev_t *rdev) } } else if (mddev->pers == NULL) { - /* Insist of good event counter while assembling */ + /* Insist of good event counter while assembling, except for + * spares (which don't need an event count) */ ++ev1; - if (ev1 < mddev->events) - return -EINVAL; + if (rdev->desc_nr >= 0 && + rdev->desc_nr < le32_to_cpu(sb->max_dev) && + le16_to_cpu(sb->dev_roles[rdev->desc_nr]) < 0xfffe) + if (ev1 < mddev->events) + return -EINVAL; } else if (mddev->bitmap) { /* If adding to array with a bitmap, then we can accept an * older device, but not too old. |