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sys/compat/linuxkpi/common/include/linux/shrinker.h
- This file was added.
| /*- | |||||
| * Copyright (c) 2020 Emmanuel Vadot <manu@FreeBSD.org> | |||||
| * | |||||
| * Redistribution and use in source and binary forms, with or without | |||||
| * modification, are permitted provided that the following conditions | |||||
| * are met: | |||||
| * 1. Redistributions of source code must retain the above copyright | |||||
| * notice, this list of conditions and the following disclaimer. | |||||
| * 2. Redistributions in binary form must reproduce the above copyright | |||||
| * notice, this list of conditions and the following disclaimer in the | |||||
| * documentation and/or other materials provided with the distribution. | |||||
| * | |||||
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |||||
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |||||
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |||||
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |||||
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |||||
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |||||
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |||||
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |||||
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |||||
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |||||
| * SUCH DAMAGE. | |||||
| * | |||||
| * $FreeBSD$ | |||||
| */ | |||||
| #ifndef __LINUX_SHRINKER_H__ | |||||
| #define __LINUX_SHRINKER_H__ | |||||
| #include <sys/queue.h> | |||||
| struct shrink_control { | |||||
| unsigned long nr_to_scan; | |||||
| unsigned long nr_scanned; | |||||
| }; | |||||
| struct shrinker { | |||||
| unsigned long (*count_objects)(struct shrinker *, struct shrink_control *); | |||||
| unsigned long (*scan_objects)(struct shrinker *, struct shrink_control *); | |||||
| int seeks; | |||||
| long batch; | |||||
| TAILQ_ENTRY(shrinker) next; | |||||
| }; | |||||
| #define SHRINK_STOP (~0UL) | |||||
| #define DEFAULT_SEEKS 2 | |||||
| int linuxkpi_register_shrinker(struct shrinker *s); | |||||
| void linuxkpi_unregister_shrinker(struct shrinker *s); | |||||
| #define register_shrinker(s) linuxkpi_register_shrinker(s) | |||||
| #define unregister_shrinker(s) linuxkpi_unregister_shrinker(s) | |||||
| #endif /* __LINUX_SHRINKER_H__ */ | |||||