228 static void ff_layout_free_mirror_array(struct nfs4_ff_layout_segment *fls)  in ff_layout_free_mirror_array()  argument
232 	if (fls->mirror_array) {  in ff_layout_free_mirror_array()
233 		for (i = 0; i < fls->mirror_array_cnt; i++) {  in ff_layout_free_mirror_array()
237 			ff_layout_put_mirror(fls->mirror_array[i]);  in ff_layout_free_mirror_array()
239 		kfree(fls->mirror_array);  in ff_layout_free_mirror_array()
240 		fls->mirror_array = NULL;  in ff_layout_free_mirror_array()
262 static void _ff_layout_free_lseg(struct nfs4_ff_layout_segment *fls)  in _ff_layout_free_lseg()  argument
264 	if (fls) {  in _ff_layout_free_lseg()
265 		ff_layout_free_mirror_array(fls);  in _ff_layout_free_lseg()
266 		kfree(fls);  in _ff_layout_free_lseg()
329 static void ff_layout_sort_mirrors(struct nfs4_ff_layout_segment *fls)  in ff_layout_sort_mirrors()  argument
333 	for (i = 0; i < fls->mirror_array_cnt - 1; i++) {  in ff_layout_sort_mirrors()
334 		for (j = i + 1; j < fls->mirror_array_cnt; j++)  in ff_layout_sort_mirrors()
335 			if (fls->mirror_array[i]->efficiency <  in ff_layout_sort_mirrors()
336 			    fls->mirror_array[j]->efficiency)  in ff_layout_sort_mirrors()
337 				swap(fls->mirror_array[i],  in ff_layout_sort_mirrors()
338 				     fls->mirror_array[j]);  in ff_layout_sort_mirrors()
342 static void ff_layout_mark_devices_valid(struct nfs4_ff_layout_segment *fls)  in ff_layout_mark_devices_valid()  argument
347 	if (!(fls->flags & FF_FLAGS_NO_IO_THRU_MDS))  in ff_layout_mark_devices_valid()
349 	for (i = 0; i < fls->mirror_array_cnt; i++) {  in ff_layout_mark_devices_valid()
350 		node = &fls->mirror_array[i]->mirror_ds->id_node;  in ff_layout_mark_devices_valid()
361 	struct nfs4_ff_layout_segment *fls = NULL;  in ff_layout_alloc_lseg()  local
395 	fls = kzalloc(sizeof(*fls), gfp_flags);  in ff_layout_alloc_lseg()
396 	if (!fls)  in ff_layout_alloc_lseg()
399 	fls->mirror_array_cnt = mirror_array_cnt;  in ff_layout_alloc_lseg()
400 	fls->stripe_unit = stripe_unit;  in ff_layout_alloc_lseg()
401 	fls->mirror_array = kcalloc(fls->mirror_array_cnt,  in ff_layout_alloc_lseg()
402 				    sizeof(fls->mirror_array[0]), gfp_flags);  in ff_layout_alloc_lseg()
403 	if (fls->mirror_array == NULL)  in ff_layout_alloc_lseg()
406 	for (i = 0; i < fls->mirror_array_cnt; i++) {  in ff_layout_alloc_lseg()
424 		fls->mirror_array[i] = ff_layout_alloc_mirror(gfp_flags);  in ff_layout_alloc_lseg()
425 		if (fls->mirror_array[i] == NULL) {  in ff_layout_alloc_lseg()
430 		fls->mirror_array[i]->ds_count = ds_count;  in ff_layout_alloc_lseg()
446 			fls->mirror_array[i]->mirror_ds =  in ff_layout_alloc_lseg()
456 		fls->mirror_array[i]->efficiency = be32_to_cpup(p);  in ff_layout_alloc_lseg()
459 		rc = decode_stateid(&stream, &fls->mirror_array[i]->stateid);  in ff_layout_alloc_lseg()
469 		fls->mirror_array[i]->fh_versions =  in ff_layout_alloc_lseg()
472 		if (fls->mirror_array[i]->fh_versions == NULL) {  in ff_layout_alloc_lseg()
479 					   &fls->mirror_array[i]->fh_versions[j]);  in ff_layout_alloc_lseg()
484 		fls->mirror_array[i]->fh_versions_cnt = fh_count;  in ff_layout_alloc_lseg()
487 		rc = decode_name(&stream, &fls->mirror_array[i]->uid);  in ff_layout_alloc_lseg()
492 		rc = decode_name(&stream, &fls->mirror_array[i]->gid);  in ff_layout_alloc_lseg()
496 		mirror = ff_layout_add_mirror(lh, fls->mirror_array[i]);  in ff_layout_alloc_lseg()
497 		if (mirror != fls->mirror_array[i]) {  in ff_layout_alloc_lseg()
498 			ff_layout_free_mirror(fls->mirror_array[i]);  in ff_layout_alloc_lseg()
499 			fls->mirror_array[i] = mirror;  in ff_layout_alloc_lseg()
503 			fls->mirror_array[i]->uid,  in ff_layout_alloc_lseg()
504 			fls->mirror_array[i]->gid);  in ff_layout_alloc_lseg()
509 		fls->flags = be32_to_cpup(p);  in ff_layout_alloc_lseg()
511 	ff_layout_sort_mirrors(fls);  in ff_layout_alloc_lseg()
515 	ff_layout_mark_devices_valid(fls);  in ff_layout_alloc_lseg()
517 	ret = &fls->generic_hdr;  in ff_layout_alloc_lseg()
523 	_ff_layout_free_lseg(fls);  in ff_layout_alloc_lseg()
543 	struct nfs4_ff_layout_segment *fls = FF_LAYOUT_LSEG(lseg);  in ff_layout_free_lseg()  local
561 	_ff_layout_free_lseg(fls);  in ff_layout_free_lseg()
566 ff_layout_get_lseg_count(struct nfs4_ff_layout_segment *fls)  in ff_layout_get_lseg_count()  argument
716 	struct nfs4_ff_layout_segment *fls = FF_LAYOUT_LSEG(lseg);  in ff_layout_alloc_commit_info()  local
729 	size = ff_layout_get_lseg_count(fls) * FF_LAYOUT_MIRROR_COUNT(lseg);  in ff_layout_alloc_commit_info()
762 	struct nfs4_ff_layout_segment *fls = FF_LAYOUT_LSEG(lseg);  in ff_layout_choose_best_ds_for_read()  local
767 	for (idx = start_idx; idx < fls->mirror_array_cnt; idx++) {  in ff_layout_choose_best_ds_for_read()