1 /* 2 * Copyright (c) 2020 iXsystems, Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 30 #ifndef _SPL_KMEM_CACHE_H 31 #define _SPL_KMEM_CACHE_H 32 33 #ifdef _KERNEL 34 #include <sys/taskq.h> 35 36 /* kmem move callback return values */ 37 typedef enum kmem_cbrc { 38 KMEM_CBRC_YES = 0, /* Object moved */ 39 KMEM_CBRC_NO = 1, /* Object not moved */ 40 KMEM_CBRC_LATER = 2, /* Object not moved, try again later */ 41 KMEM_CBRC_DONT_NEED = 3, /* Neither object is needed */ 42 KMEM_CBRC_DONT_KNOW = 4, /* Object unknown */ 43 } kmem_cbrc_t; 44 45 extern void spl_kmem_cache_set_move(kmem_cache_t *, 46 kmem_cbrc_t (*)(void *, void *, size_t, void *)); 47 48 #define kmem_cache_set_move(skc, move) spl_kmem_cache_set_move(skc, move) 49 50 #endif /* _KERNEL */ 51 52 #endif 53