1 /*- 2 * Copyright (c) 2024-2025 The FreeBSD Foundation 3 * Copyright (c) 2024-2025 Jean-Sébastien Pédron 4 * 5 * This software was developed by Jean-Sébastien Pédron under sponsorship 6 * from the FreeBSD Foundation. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <linux/gfp.h> 31 #include <linux/mm.h> 32 #include <linux/mm_types.h> 33 #include <linux/page.h> 34 #include <linux/pagevec.h> 35 36 struct folio * 37 folio_alloc(gfp_t gfp, unsigned int order) 38 { 39 struct page *page; 40 struct folio *folio; 41 42 /* 43 * Allocated pages are wired already. There is no need to increase a 44 * refcount here. 45 */ 46 page = alloc_pages(gfp | __GFP_COMP, order); 47 folio = (struct folio *)page; 48 49 return (folio); 50 } 51 52 void 53 __folio_batch_release(struct folio_batch *fbatch) 54 { 55 release_pages(fbatch->folios, folio_batch_count(fbatch)); 56 57 folio_batch_reinit(fbatch); 58 } 59