shrinker.h revision 1.2.2.1
1 1.2.2.1 tls /* $NetBSD: shrinker.h,v 1.2.2.1 2014/08/10 06:55:39 tls Exp $ */ 2 1.2 riastrad 3 1.2 riastrad /*- 4 1.2 riastrad * Copyright (c) 2013 The NetBSD Foundation, Inc. 5 1.2 riastrad * All rights reserved. 6 1.2 riastrad * 7 1.2 riastrad * This code is derived from software contributed to The NetBSD Foundation 8 1.2 riastrad * by Taylor R. Campbell. 9 1.2 riastrad * 10 1.2 riastrad * Redistribution and use in source and binary forms, with or without 11 1.2 riastrad * modification, are permitted provided that the following conditions 12 1.2 riastrad * are met: 13 1.2 riastrad * 1. Redistributions of source code must retain the above copyright 14 1.2 riastrad * notice, this list of conditions and the following disclaimer. 15 1.2 riastrad * 2. Redistributions in binary form must reproduce the above copyright 16 1.2 riastrad * notice, this list of conditions and the following disclaimer in the 17 1.2 riastrad * documentation and/or other materials provided with the distribution. 18 1.2 riastrad * 19 1.2 riastrad * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.2 riastrad * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.2 riastrad * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.2 riastrad * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.2 riastrad * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.2 riastrad * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.2 riastrad * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.2 riastrad * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.2 riastrad * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.2 riastrad * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.2 riastrad * POSSIBILITY OF SUCH DAMAGE. 30 1.2 riastrad */ 31 1.2 riastrad 32 1.2 riastrad #ifndef _LINUX_SHRINKER_H_ 33 1.2 riastrad #define _LINUX_SHRINKER_H_ 34 1.2 riastrad 35 1.2 riastrad struct shrink_control { 36 1.2.2.1 tls unsigned long nr_to_scan; 37 1.2 riastrad }; 38 1.2 riastrad 39 1.2 riastrad struct shrinker { 40 1.2.2.1 tls int (*shrink)(struct shrinker *, struct shrink_control *); 41 1.2.2.1 tls unsigned long (*count_objects)(struct shrinker *, 42 1.2.2.1 tls struct shrink_control *); 43 1.2.2.1 tls unsigned long (*scan_objects)(struct shrinker *, 44 1.2.2.1 tls struct shrink_control *); 45 1.2.2.1 tls int seeks; 46 1.2 riastrad }; 47 1.2 riastrad 48 1.2 riastrad #define DEFAULT_SEEKS 2 /* XXX cargo-culted from Linux */ 49 1.2 riastrad 50 1.2 riastrad static inline void 51 1.2 riastrad register_shrinker(struct shrinker *shrinker __unused) 52 1.2 riastrad { 53 1.2 riastrad } 54 1.2 riastrad 55 1.2 riastrad static inline void 56 1.2 riastrad unregister_shrinker(struct shrinker *shrinker __unused) 57 1.2 riastrad { 58 1.2 riastrad } 59 1.2 riastrad 60 1.2 riastrad #endif /* _LINUX_SHRINKER_H_ */ 61
Indexes created Tue Sep 30 20:09:53 GMT 2025