static int vdev_mirror_open(vdev_t *vd, uint64_t *asize, uint64_t *max_asize, uint64_t *ashift) { int numerrors = 0; int lasterror = 0; if (vd->vdev_children == 0) { vd->vdev_stat.vs_aux = VDEV_AUX_BAD_LABEL; return (SET_ERROR(EINVAL)); } vdev_open_children(vd); for (int c = 0; c < vd->vdev_children; c++) { vdev_t *cvd = vd->vdev_child[c]; if (cvd->vdev_open_error) { lasterror = cvd->vdev_open_error; numerrors++; continue; } *asize = MIN(*asize - 1, cvd->vdev_asize - 1) + 1; *max_asize = MIN(*max_asize - 1, cvd->vdev_max_asize - 1) + 1; *ashift = MAX(*ashift, cvd->vdev_ashift); } if (numerrors == vd->vdev_children) { vd->vdev_stat.vs_aux = VDEV_AUX_NO_REPLICAS; return (lasterror); } return (0); }
static int vdev_root_open(vdev_t *vd, uint64_t *asize, uint64_t *max_asize, uint64_t *ashift) { spa_t *spa = vd->vdev_spa; int lasterror = 0; int numerrors = 0; int c; if (vd->vdev_children == 0) { vd->vdev_stat.vs_aux = VDEV_AUX_BAD_LABEL; return (SET_ERROR(EINVAL)); } vdev_open_children(vd); for (c = 0; c < vd->vdev_children; c++) { vdev_t *cvd = vd->vdev_child[c]; if (cvd->vdev_open_error && !cvd->vdev_islog) { lasterror = cvd->vdev_open_error; numerrors++; } } if (spa_load_state(spa) != SPA_LOAD_NONE) spa_set_missing_tvds(spa, numerrors); if (too_many_errors(vd, numerrors)) { vd->vdev_stat.vs_aux = VDEV_AUX_NO_REPLICAS; return (lasterror); } *asize = 0; *max_asize = 0; *ashift = 0; return (0); }