shrinker.h revision 1.3.4.2
1 1.3.4.2 tls /* $NetBSD: shrinker.h,v 1.3.4.2 2014/08/20 00:04:21 tls Exp $ */ 2 1.3.4.2 tls 3 1.3.4.2 tls /*- 4 1.3.4.2 tls * Copyright (c) 2013 The NetBSD Foundation, Inc. 5 1.3.4.2 tls * All rights reserved. 6 1.3.4.2 tls * 7 1.3.4.2 tls * This code is derived from software contributed to The NetBSD Foundation 8 1.3.4.2 tls * by Taylor R. Campbell. 9 1.3.4.2 tls * 10 1.3.4.2 tls * Redistribution and use in source and binary forms, with or without 11 1.3.4.2 tls * modification, are permitted provided that the following conditions 12 1.3.4.2 tls * are met: 13 1.3.4.2 tls * 1. Redistributions of source code must retain the above copyright 14 1.3.4.2 tls * notice, this list of conditions and the following disclaimer. 15 1.3.4.2 tls * 2. Redistributions in binary form must reproduce the above copyright 16 1.3.4.2 tls * notice, this list of conditions and the following disclaimer in the 17 1.3.4.2 tls * documentation and/or other materials provided with the distribution. 18 1.3.4.2 tls * 19 1.3.4.2 tls * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.3.4.2 tls * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.3.4.2 tls * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.3.4.2 tls * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.3.4.2 tls * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.3.4.2 tls * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.3.4.2 tls * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.3.4.2 tls * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.3.4.2 tls * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.3.4.2 tls * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.3.4.2 tls * POSSIBILITY OF SUCH DAMAGE. 30 1.3.4.2 tls */ 31 1.3.4.2 tls 32 1.3.4.2 tls #ifndef _LINUX_SHRINKER_H_ 33 1.3.4.2 tls #define _LINUX_SHRINKER_H_ 34 1.3.4.2 tls 35 1.3.4.2 tls struct shrink_control { 36 1.3.4.2 tls unsigned long nr_to_scan; 37 1.3.4.2 tls }; 38 1.3.4.2 tls 39 1.3.4.2 tls struct shrinker { 40 1.3.4.2 tls int (*shrink)(struct shrinker *, struct shrink_control *); 41 1.3.4.2 tls unsigned long (*count_objects)(struct shrinker *, 42 1.3.4.2 tls struct shrink_control *); 43 1.3.4.2 tls unsigned long (*scan_objects)(struct shrinker *, 44 1.3.4.2 tls struct shrink_control *); 45 1.3.4.2 tls int seeks; 46 1.3.4.2 tls }; 47 1.3.4.2 tls 48 1.3.4.2 tls #define DEFAULT_SEEKS 2 /* XXX cargo-culted from Linux */ 49 1.3.4.2 tls 50 1.3.4.2 tls static inline void 51 1.3.4.2 tls register_shrinker(struct shrinker *shrinker __unused) 52 1.3.4.2 tls { 53 1.3.4.2 tls } 54 1.3.4.2 tls 55 1.3.4.2 tls static inline void 56 1.3.4.2 tls unregister_shrinker(struct shrinker *shrinker __unused) 57 1.3.4.2 tls { 58 1.3.4.2 tls } 59 1.3.4.2 tls 60 1.3.4.2 tls #endif /* _LINUX_SHRINKER_H_ */ 61
Indexes created Tue Sep 30 20:09:53 GMT 2025