183 lines
5.2 KiB
C
183 lines
5.2 KiB
C
/* $NetBSD: misc.c,v 1.4 2012/06/05 22:51:47 jym Exp $ */
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/*-
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* Copyright (c) 2009 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Andrew Doran.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*-
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* Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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/* __FBSDID("$FreeBSD: src/sys/compat/opensolaris/kern/opensolaris_misc.c,v 1.2 2007/04/23 00:52:06 pjd Exp $"); */
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#include <sys/mount.h>
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/misc.h>
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#include <sys/sunddi.h>
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#include <sys/utsname.h>
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#include <sys/vnode.h>
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#include <sys/mount.h>
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#include <sys/pool.h>
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#include <sys/buf.h>
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char hw_serial[11] = "0";
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struct utsname utsname = {
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.nodename = "XXXNETBSD"
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};
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int
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vn_is_readonly(vnode_t *vp)
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{
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return (vp->v_mount->mnt_flag & MNT_RDONLY);
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}
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kthread_t *
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thread_create(void * stk, size_t stksize, void (*proc)(), void *arg,
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size_t len, proc_t *pp, int state, pri_t pri)
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{
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int error;
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lwp_t *thr;
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//ASSERT(stk == NULL && stksize == 0 && len == 0);
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ASSERT(stk == NULL && len == 0);
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ASSERT(state == TS_RUN);
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error = kthread_create(pri, KTHREAD_MPSAFE, NULL,
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proc, arg, &thr, "zfs");
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KASSERT(error == 0);
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return thr;
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}
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void
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thread_exit(void)
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{
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kthread_exit(0);
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}
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void
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thread_join(uint64_t kid)
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{
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return;
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}
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int
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newproc(void (*pc)(), caddr_t arg, id_t cid, int pri, struct contract **ct,
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pid_t pid)
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{
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int error;
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ASSERT(cid == PRI_NONE);
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error = kthread_create(pri, KTHREAD_MPSAFE, NULL,
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pc, arg, NULL, "zfs_proc");
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KASSERT(error == 0);
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return 0;
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}
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void
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kmem_reap(void)
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{
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int bufcnt;
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struct pool *pp;
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bufcnt = uvmexp.freetarg - uvmexp.free;
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if (bufcnt < 0)
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bufcnt = 0;
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/*
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* kill unused metadata buffers.
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*/
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mutex_enter(&bufcache_lock);
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buf_drain(bufcnt << PAGE_SHIFT);
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mutex_exit(&bufcache_lock);
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/*
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* drain the pools.
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*/
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pool_drain(&pp);
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// printf("XXXNETBSD kmem_reap called, write me\n");
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}
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/*
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* Zero out the structure, set the size of the requested/returned bitmaps,
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* set AT_XVATTR in the embedded vattr_t's va_mask, and set up the pointer
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* to the returned attributes array.
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*/
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void
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xva_init(xvattr_t *xvap)
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{
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bzero(xvap, sizeof (xvattr_t));
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xvap->xva_mapsize = XVA_MAPSIZE;
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xvap->xva_magic = XVA_MAGIC;
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xvap->xva_vattr.va_mask = AT_XVATTR;
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xvap->xva_rtnattrmapp = &(xvap->xva_rtnattrmap)[0];
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}
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/*
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* If AT_XVATTR is set, returns a pointer to the embedded xoptattr_t
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* structure. Otherwise, returns NULL.
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*/
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xoptattr_t *
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xva_getxoptattr(xvattr_t *xvap)
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{
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xoptattr_t *xoap = NULL;
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if (xvap->xva_vattr.va_mask & AT_XVATTR)
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xoap = &xvap->xva_xoptattrs;
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return (xoap);
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}
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