278 		struct xfs_log_vec *lv;  in xlog_cil_alloc_shadow_bufs()  local
340 			lv = xlog_kvmalloc(buf_size);  in xlog_cil_alloc_shadow_bufs()
342 			memset(lv, 0, xlog_cil_iovec_space(niovecs));  in xlog_cil_alloc_shadow_bufs()
344 			INIT_LIST_HEAD(&lv->lv_list);  in xlog_cil_alloc_shadow_bufs()
345 			lv->lv_item = lip;  in xlog_cil_alloc_shadow_bufs()
346 			lv->lv_size = buf_size;  in xlog_cil_alloc_shadow_bufs()
348 				lv->lv_buf_len = XFS_LOG_VEC_ORDERED;  in xlog_cil_alloc_shadow_bufs()
350 				lv->lv_iovecp = (struct xfs_log_iovec *)&lv[1];  in xlog_cil_alloc_shadow_bufs()
351 			lip->li_lv_shadow = lv;  in xlog_cil_alloc_shadow_bufs()
354 			lv = lip->li_lv_shadow;  in xlog_cil_alloc_shadow_bufs()
356 				lv->lv_buf_len = XFS_LOG_VEC_ORDERED;  in xlog_cil_alloc_shadow_bufs()
358 				lv->lv_buf_len = 0;  in xlog_cil_alloc_shadow_bufs()
359 			lv->lv_bytes = 0;  in xlog_cil_alloc_shadow_bufs()
362 		/* Ensure the lv is set up according to ->iop_size */  in xlog_cil_alloc_shadow_bufs()
363 		lv->lv_niovecs = niovecs;  in xlog_cil_alloc_shadow_bufs()
366 		lv->lv_buf = (char *)lv + xlog_cil_iovec_space(niovecs);  in xlog_cil_alloc_shadow_bufs()
378 	struct xfs_log_vec	*lv,  in xfs_cil_prepare_item()  argument
382 	/* Account for the new LV being passed in */  in xfs_cil_prepare_item()
383 	if (lv->lv_buf_len != XFS_LOG_VEC_ORDERED)  in xfs_cil_prepare_item()
384 		*diff_len += lv->lv_bytes;  in xfs_cil_prepare_item()
387 	 * If there is no old LV, this is the first time we've seen the item in  in xfs_cil_prepare_item()
394 		if (lv->lv_item->li_ops->iop_pin)  in xfs_cil_prepare_item()
395 			lv->lv_item->li_ops->iop_pin(lv->lv_item);  in xfs_cil_prepare_item()
396 		lv->lv_item->li_lv_shadow = NULL;  in xfs_cil_prepare_item()
397 	} else if (old_lv != lv) {  in xfs_cil_prepare_item()
398 		ASSERT(lv->lv_buf_len != XFS_LOG_VEC_ORDERED);  in xfs_cil_prepare_item()
401 		lv->lv_item->li_lv_shadow = old_lv;  in xfs_cil_prepare_item()
405 	lv->lv_item->li_lv = lv;  in xfs_cil_prepare_item()
413 	if (!lv->lv_item->li_seq)  in xfs_cil_prepare_item()
414 		lv->lv_item->li_seq = log->l_cilp->xc_ctx->sequence;  in xfs_cil_prepare_item()
427  * dependent on the current state of the vector in the CIL - the shadow lv is
429  * use that if we can't reuse the existing lv. If we can't reuse the existing
430  * lv, then simple swap it out for the shadow lv. We don't free it - that is
460 		struct xfs_log_vec *lv;  in xlog_cil_insert_format_items()  local
471 		 * the shadow lv on the log item.  in xlog_cil_insert_format_items()
485 			lv = lip->li_lv;  in xlog_cil_insert_format_items()
494 			*diff_len -= lv->lv_bytes;  in xlog_cil_insert_format_items()
496 			/* Ensure the lv is set up according to ->iop_size */  in xlog_cil_insert_format_items()
497 			lv->lv_niovecs = shadow->lv_niovecs;  in xlog_cil_insert_format_items()
499 			/* reset the lv buffer information for new formatting */  in xlog_cil_insert_format_items()
500 			lv->lv_buf_len = 0;  in xlog_cil_insert_format_items()
501 			lv->lv_bytes = 0;  in xlog_cil_insert_format_items()
502 			lv->lv_buf = (char *)lv +  in xlog_cil_insert_format_items()
503 					xlog_cil_iovec_space(lv->lv_niovecs);  in xlog_cil_insert_format_items()
506 			lv = shadow;  in xlog_cil_insert_format_items()
507 			lv->lv_item = lip;  in xlog_cil_insert_format_items()
515 		ASSERT(IS_ALIGNED((unsigned long)lv->lv_buf, sizeof(uint64_t)));  in xlog_cil_insert_format_items()
516 		lip->li_ops->iop_format(lip, lv);  in xlog_cil_insert_format_items()
518 		xfs_cil_prepare_item(log, lv, old_lv, diff_len);  in xlog_cil_insert_format_items()
698 	struct xfs_log_vec	*lv;  in xlog_cil_free_logvec()  local
701 		lv = list_first_entry(lv_chain, struct xfs_log_vec, lv_list);  in xlog_cil_free_logvec()
702 		list_del_init(&lv->lv_list);  in xlog_cil_free_logvec()
703 		kmem_free(lv);  in xlog_cil_free_logvec()
1064 		struct xfs_log_vec	*lv;  in xlog_cil_build_lv_chain()  local
1075 		lv = item->li_lv;  in xlog_cil_build_lv_chain()
1076 		lv->lv_order_id = item->li_order_id;  in xlog_cil_build_lv_chain()
1079 		if (lv->lv_buf_len != XFS_LOG_VEC_ORDERED)  in xlog_cil_build_lv_chain()
1080 			*num_bytes += lv->lv_bytes;  in xlog_cil_build_lv_chain()
1081 		*num_iovecs += lv->lv_niovecs;  in xlog_cil_build_lv_chain()
1082 		list_add_tail(&lv->lv_list, &ctx->lv_chain);  in xlog_cil_build_lv_chain()
1248 	 * Add the lvhdr to the head of the lv chain we pass to xlog_write() so  in xlog_cil_push_work()