Illumos #3742

[mirror_zfs.git] / module / zfs / vdev.c

diff --git a/module/zfs/vdev.c b/module/zfs/vdev.c
index 95effb626b7c8fff0111bcdcd3e2edb7f56e8ee4..ddfca71dfbe33fe658cd04587e62da3da1ac5fdb 100644 (file)
--- a/module/zfs/vdev.c
+++ b/module/zfs/vdev.c
@@ -966,9 +966,11 @@ vdev_probe_done(zio_t *zio)
 }
 
 /*
- * Determine whether this device is accessible by reading and writing
- * to several known locations: the pad regions of each vdev label
- * but the first (which we leave alone in case it contains a VTOC).
+ * Determine whether this device is accessible.
+ *
+ * Read and write to several known locations: the pad regions of each
+ * vdev label but the first, which we leave alone in case it contains
+ * a VTOC.
  */
 zio_t *
 vdev_probe(vdev_t *vd, zio_t *zio)
@@ -2202,10 +2204,12 @@ vdev_degrade(spa_t *spa, uint64_t guid, vdev_aux_t aux)
 }
 
 /*
- * Online the given vdev.  If 'unspare' is set, it implies two things.  First,
- * any attached spare device should be detached when the device finishes
- * resilvering.  Second, the online should be treated like a 'test' online case,
- * so no FMA events are generated if the device fails to open.
+ * Online the given vdev.
+ *
+ * If 'ZFS_ONLINE_UNSPARE' is set, it implies two things.  First, any attached
+ * spare device should be detached when the device finishes resilvering.
+ * Second, the online should be treated like a 'test' online case, so no FMA
+ * events are generated if the device fails to open.
  */
 int
 vdev_online(spa_t *spa, uint64_t guid, uint64_t flags, vdev_state_t *newstate)