258 static void ff_layout_free_mirror_array(struct nfs4_ff_layout_segment *fls)  in ff_layout_free_mirror_array()  argument
262 	for (i = 0; i < fls->mirror_array_cnt; i++)  in ff_layout_free_mirror_array()
263 		ff_layout_put_mirror(fls->mirror_array[i]);  in ff_layout_free_mirror_array()
266 static void _ff_layout_free_lseg(struct nfs4_ff_layout_segment *fls)  in _ff_layout_free_lseg()  argument
268 	if (fls) {  in _ff_layout_free_lseg()
269 		ff_layout_free_mirror_array(fls);  in _ff_layout_free_lseg()
270 		kfree(fls);  in _ff_layout_free_lseg()
352 static void ff_layout_sort_mirrors(struct nfs4_ff_layout_segment *fls)  in ff_layout_sort_mirrors()  argument
356 	for (i = 0; i < fls->mirror_array_cnt - 1; i++) {  in ff_layout_sort_mirrors()
357 		for (j = i + 1; j < fls->mirror_array_cnt; j++)  in ff_layout_sort_mirrors()
358 			if (fls->mirror_array[i]->efficiency <  in ff_layout_sort_mirrors()
359 			    fls->mirror_array[j]->efficiency)  in ff_layout_sort_mirrors()
360 				swap(fls->mirror_array[i],  in ff_layout_sort_mirrors()
361 				     fls->mirror_array[j]);  in ff_layout_sort_mirrors()
371 	struct nfs4_ff_layout_segment *fls = NULL;  in ff_layout_alloc_lseg()  local
405 	fls = kzalloc(struct_size(fls, mirror_array, mirror_array_cnt),  in ff_layout_alloc_lseg()
407 	if (!fls)  in ff_layout_alloc_lseg()
410 	fls->mirror_array_cnt = mirror_array_cnt;  in ff_layout_alloc_lseg()
411 	fls->stripe_unit = stripe_unit;  in ff_layout_alloc_lseg()
413 	for (i = 0; i < fls->mirror_array_cnt; i++) {  in ff_layout_alloc_lseg()
432 		fls->mirror_array[i] = ff_layout_alloc_mirror(gfp_flags);  in ff_layout_alloc_lseg()
433 		if (fls->mirror_array[i] == NULL) {  in ff_layout_alloc_lseg()
438 		fls->mirror_array[i]->ds_count = ds_count;  in ff_layout_alloc_lseg()
441 		rc = decode_deviceid(&stream, &fls->mirror_array[i]->devid);  in ff_layout_alloc_lseg()
450 		fls->mirror_array[i]->efficiency = be32_to_cpup(p);  in ff_layout_alloc_lseg()
453 		rc = decode_pnfs_stateid(&stream, &fls->mirror_array[i]->stateid);  in ff_layout_alloc_lseg()
464 		fls->mirror_array[i]->fh_versions =  in ff_layout_alloc_lseg()
467 		if (fls->mirror_array[i]->fh_versions == NULL) {  in ff_layout_alloc_lseg()
474 					   &fls->mirror_array[i]->fh_versions[j]);  in ff_layout_alloc_lseg()
479 		fls->mirror_array[i]->fh_versions_cnt = fh_count;  in ff_layout_alloc_lseg()
510 			rcu_assign_pointer(fls->mirror_array[i]->ro_cred, cred);  in ff_layout_alloc_lseg()
512 			rcu_assign_pointer(fls->mirror_array[i]->rw_cred, cred);  in ff_layout_alloc_lseg()
514 		mirror = ff_layout_add_mirror(lh, fls->mirror_array[i]);  in ff_layout_alloc_lseg()
515 		if (mirror != fls->mirror_array[i]) {  in ff_layout_alloc_lseg()
519 				rcu_assign_pointer(fls->mirror_array[i]->ro_cred, cred);  in ff_layout_alloc_lseg()
522 				rcu_assign_pointer(fls->mirror_array[i]->rw_cred, cred);  in ff_layout_alloc_lseg()
524 			ff_layout_free_mirror(fls->mirror_array[i]);  in ff_layout_alloc_lseg()
525 			fls->mirror_array[i] = mirror;  in ff_layout_alloc_lseg()
537 	fls->flags = be32_to_cpup(p);  in ff_layout_alloc_lseg()
542 	for (i=0; i < fls->mirror_array_cnt; i++)  in ff_layout_alloc_lseg()
543 		fls->mirror_array[i]->report_interval = be32_to_cpup(p);  in ff_layout_alloc_lseg()
546 	ff_layout_sort_mirrors(fls);  in ff_layout_alloc_lseg()
547 	ret = &fls->generic_hdr;  in ff_layout_alloc_lseg()
553 	_ff_layout_free_lseg(fls);  in ff_layout_alloc_lseg()
562 	struct nfs4_ff_layout_segment *fls = FF_LAYOUT_LSEG(lseg);  in ff_layout_free_lseg()  local
576 	_ff_layout_free_lseg(fls);  in ff_layout_free_lseg()
746 	struct nfs4_ff_layout_segment *fls = FF_LAYOUT_LSEG(lseg);  in ff_layout_choose_ds_for_read()  local
752 	for (idx = start_idx; idx < fls->mirror_array_cnt; idx++) {  in ff_layout_choose_ds_for_read()