1494 vdev_reopen(vdev_t *vd)
1495 {
1496         spa_t *spa = vd->vdev_spa;
1497 
1498         ASSERT(spa_config_held(spa, SCL_STATE_ALL, RW_WRITER) == SCL_STATE_ALL);
1499 
1500         /* set the reopening flag unless we're taking the vdev offline */
1501         vd->vdev_reopening = !vd->vdev_offline;
1502         vdev_close(vd);
1503         (void) vdev_open(vd);
1504 
1505         /*
1506          * Call vdev_validate() here to make sure we have the same device.
1507          * Otherwise, a device with an invalid label could be successfully
1508          * opened in response to vdev_reopen().
1509          */
1510         if (vd->vdev_aux) {
1511                 (void) vdev_validate_aux(vd);
1512                 if (vdev_readable(vd) && vdev_writeable(vd) &&
1513                     vd->vdev_aux == &spa->spa_l2cache &&
1514                     !l2arc_vdev_present(vd))
1515                         l2arc_add_vdev(spa, vd);






1516         } else {
1517                 (void) vdev_validate(vd, B_TRUE);
1518         }
1519 
1520         /*
1521          * Reassess parent vdev's health.
1522          */
1523         vdev_propagate_state(vd);
1524 }
1525 
1526 int
1527 vdev_create(vdev_t *vd, uint64_t txg, boolean_t isreplacing)
1528 {
1529         int error;
1530 
1531         /*
1532          * Normally, partial opens (e.g. of a mirror) are allowed.
1533          * For a create, however, we want to fail the request if
1534          * there are any components we can't open.
1535          */

1494 vdev_reopen(vdev_t *vd)
1495 {
1496         spa_t *spa = vd->vdev_spa;
1497 
1498         ASSERT(spa_config_held(spa, SCL_STATE_ALL, RW_WRITER) == SCL_STATE_ALL);
1499 
1500         /* set the reopening flag unless we're taking the vdev offline */
1501         vd->vdev_reopening = !vd->vdev_offline;
1502         vdev_close(vd);
1503         (void) vdev_open(vd);
1504 
1505         /*
1506          * Call vdev_validate() here to make sure we have the same device.
1507          * Otherwise, a device with an invalid label could be successfully
1508          * opened in response to vdev_reopen().
1509          */
1510         if (vd->vdev_aux) {
1511                 (void) vdev_validate_aux(vd);
1512                 if (vdev_readable(vd) && vdev_writeable(vd) &&
1513                     vd->vdev_aux == &spa->spa_l2cache &&
1514                     !l2arc_vdev_present(vd)) {
1515                         /*
1516                          * When reopening we can assume persistent L2ARC is
1517                          * supported, since we've already opened the device
1518                          * in the past and prepended an L2 uberblock.
1519                          */
1520                         l2arc_add_vdev(spa, vd, B_TRUE);
1521                 }
1522         } else {
1523                 (void) vdev_validate(vd, B_TRUE);
1524         }
1525 
1526         /*
1527          * Reassess parent vdev's health.
1528          */
1529         vdev_propagate_state(vd);
1530 }
1531 
1532 int
1533 vdev_create(vdev_t *vd, uint64_t txg, boolean_t isreplacing)
1534 {
1535         int error;
1536 
1537         /*
1538          * Normally, partial opens (e.g. of a mirror) are allowed.
1539          * For a create, however, we want to fail the request if
1540          * there are any components we can't open.
1541          */