zfs-builds-mm/zfs-2.0.0-rc6/include/os/freebsd/spl/sys/vm.h

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2020-11-15 11:35:49 +01:00
/*
* Copyright (c) 2013 EMC Corp.
* 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.
* 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 AUTHORS 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 AUTHORS 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 _OPENSOLARIS_SYS_VM_H_
#define _OPENSOLARIS_SYS_VM_H_
#include <sys/sf_buf.h>
extern const int zfs_vm_pagerret_bad;
extern const int zfs_vm_pagerret_error;
extern const int zfs_vm_pagerret_ok;
extern const int zfs_vm_pagerput_sync;
extern const int zfs_vm_pagerput_inval;
void zfs_vmobject_assert_wlocked(vm_object_t object);
void zfs_vmobject_wlock(vm_object_t object);
void zfs_vmobject_wunlock(vm_object_t object);
#if __FreeBSD_version >= 1300081
#define zfs_vmobject_assert_wlocked_12(x)
#define zfs_vmobject_wlock_12(x)
#define zfs_vmobject_wunlock_12(x)
#else
#define zfs_vmobject_assert_wlocked_12(x) \
zfs_vmobject_assert_wlocked((x))
#define zfs_vmobject_wlock_12(x) \
zfs_vmobject_wlock(x)
#define zfs_vmobject_wunlock_12(x) \
zfs_vmobject_wunlock(x)
#define vm_page_grab_unlocked(obj, idx, flags) \
vm_page_grab((obj), (idx), (flags))
#define vm_page_grab_valid_unlocked(m, obj, idx, flags) \
vm_page_grab_valid((m), (obj), (idx), (flags))
#endif
static inline caddr_t
zfs_map_page(vm_page_t pp, struct sf_buf **sfp)
{
*sfp = sf_buf_alloc(pp, 0);
return ((caddr_t)sf_buf_kva(*sfp));
}
static inline void
zfs_unmap_page(struct sf_buf *sf)
{
sf_buf_free(sf);
}
#endif /* _OPENSOLARIS_SYS_VM_H_ */