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b40ce4165d
Note ALL MODULES MUST BE RECOMPILED make the kernel aware that there are smaller units of scheduling than the process. (but only allow one thread per process at this time). This is functionally equivalent to teh previousl -current except that there is a thread associated with each process. Sorry john! (your next MFC will be a doosie!) Reviewed by: peter@freebsd.org, dillon@freebsd.org X-MFC after: ha ha ha ha
70 lines
2.7 KiB
C
70 lines
2.7 KiB
C
/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software donated to Berkeley by
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* Jan-Simon Pendry.
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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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* @(#)fdesc.h 8.5 (Berkeley) 1/21/94
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*
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* $FreeBSD$
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*/
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#ifdef _KERNEL
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struct fdescmount {
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struct vnode *f_root; /* Root node */
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};
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#define FD_ROOT 1
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#define FD_DESC 3
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typedef enum {
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Froot,
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Fdesc
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} fdntype;
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struct fdescnode {
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LIST_ENTRY(fdescnode) fd_hash; /* Hash list */
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struct vnode *fd_vnode; /* Back ptr to vnode */
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fdntype fd_type; /* Type of this node */
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unsigned fd_fd; /* Fd to be dup'ed */
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int fd_ix; /* filesystem index */
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};
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#define VFSTOFDESC(mp) ((struct fdescmount *)((mp)->mnt_data))
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#define VTOFDESC(vp) ((struct fdescnode *)(vp)->v_data)
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extern int fdesc_init __P((struct vfsconf *));
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extern int fdesc_root __P((struct mount *, struct vnode **));
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extern int fdesc_allocvp __P((fdntype, int, struct mount *, struct vnode **,
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struct thread *));
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#endif /* _KERNEL */
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