freebsd-skq/sys/vm/vm_domain.h
jeff f93de233c6 Move domain iterators into the page layer where domain selection should take
place.  This makes the majority of the phys layer explicitly domain specific.

Reviewed by:	markj, kib (some objections)
Discussed with:	alc
Tested by:	pho
Sponsored by:	Netflix & Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D13014
2017-11-28 23:18:35 +00:00

70 lines
2.9 KiB
C

/*-
* Copyright (c) 2015 Adrian Chadd <adrian@FreeBSD.org>.
* All rights reserved.
*
* 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,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
* redistribution must be conditioned upon including a substantially
* similar Disclaimer requirement for further binary redistribution.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
*
* $FreeBSD$
*/
#ifndef __VM_DOMAIN_H__
#define __VM_DOMAIN_H__
#include <sys/_vm_domain.h>
struct vm_domain_iterator {
vm_domain_policy_type_t policy;
int domain;
int n;
};
/*
* TODO: check to see if these should just become inline functions
* at some point.
*/
extern int vm_domain_policy_init(struct vm_domain_policy *vp);
extern int vm_domain_policy_set(struct vm_domain_policy *vp,
vm_domain_policy_type_t vt, int domain);
extern int vm_domain_policy_cleanup(struct vm_domain_policy *vp);
extern void vm_domain_policy_localcopy(struct vm_domain_policy *dst,
const struct vm_domain_policy *src);
extern void vm_domain_policy_copy(struct vm_domain_policy *dst,
const struct vm_domain_policy *src);
extern int vm_domain_policy_validate(const struct vm_domain_policy *vp);
extern int vm_domain_iterator_init(struct vm_domain_iterator *vi);
extern int vm_domain_iterator_set(struct vm_domain_iterator *vi,
vm_domain_policy_type_t vt, int domain);
extern void vm_domain_iterator_set_policy(struct vm_domain_iterator *vi,
const struct vm_domain_policy *vt);
extern int vm_domain_iterator_run(struct vm_domain_iterator *vi,
int *domain);
extern int vm_domain_iterator_isdone(struct vm_domain_iterator *vi);
extern int vm_domain_iterator_cleanup(struct vm_domain_iterator *vi);
extern void vm_policy_iterator_init(struct vm_domain_iterator *vi);
extern void vm_policy_iterator_finish(struct vm_domain_iterator *vi);
#endif /* __VM_DOMAIN_H__ */