diff options
Diffstat (limited to 'module/zfs/vdev.c')
| -rw-r--r-- | module/zfs/vdev.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/module/zfs/vdev.c b/module/zfs/vdev.c index eff1d34f7..af2d1a25a 100644 --- a/module/zfs/vdev.c +++ b/module/zfs/vdev.c @@ -4764,6 +4764,35 @@ vdev_xlate(vdev_t *vd, const range_seg_t *logical_rs, range_seg_t *physical_rs) physical_rs->rs_end = intermediate.rs_end; } +/* + * Look at the vdev tree and determine whether any devices are currently being + * replaced. + */ +boolean_t +vdev_replace_in_progress(vdev_t *vdev) +{ + ASSERT(spa_config_held(vdev->vdev_spa, SCL_ALL, RW_READER) != 0); + + if (vdev->vdev_ops == &vdev_replacing_ops) + return (B_TRUE); + + /* + * A 'spare' vdev indicates that we have a replace in progress, unless + * it has exactly two children, and the second, the hot spare, has + * finished being resilvered. + */ + if (vdev->vdev_ops == &vdev_spare_ops && (vdev->vdev_children > 2 || + !vdev_dtl_empty(vdev->vdev_child[1], DTL_MISSING))) + return (B_TRUE); + + for (int i = 0; i < vdev->vdev_children; i++) { + if (vdev_replace_in_progress(vdev->vdev_child[i])) + return (B_TRUE); + } + + return (B_FALSE); +} + EXPORT_SYMBOL(vdev_fault); EXPORT_SYMBOL(vdev_degrade); EXPORT_SYMBOL(vdev_online); |