138ec1f71a
1. Use the default function to access all the specfs operations. 2. Use the default function to access all the fifofs operations. 3. Use the default function to access all the ufs operations. 4. Fix VCALL usage in vfs_cache.c 5. Use VOCALL to access specfs functions in devfs_vnops.c 6. Staticize most of the spec and fifofs vnops functions. 7. Make UFS panic if it lacks bits of the underlying storage handling.
85 lines
2.9 KiB
C
85 lines
2.9 KiB
C
/*
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. 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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* 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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* @(#)specdev.h 8.6 (Berkeley) 5/21/95
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* $Id: specdev.h,v 1.12 1997/09/14 02:58:03 peter Exp $
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*/
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/*
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* This structure defines the information maintained about
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* special devices. It is allocated in checkalias and freed
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* in vgone.
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*/
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struct specinfo {
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struct vnode **si_hashchain;
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struct vnode *si_specnext;
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long si_flags;
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dev_t si_rdev;
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};
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/*
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* Exported shorthand
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*/
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#define v_rdev v_specinfo->si_rdev
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#define v_hashchain v_specinfo->si_hashchain
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#define v_specnext v_specinfo->si_specnext
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#define v_specflags v_specinfo->si_flags
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/*
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* Flags for specinfo
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*/
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#define SI_MOUNTEDON 0x0001 /* block special device is mounted on */
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/*
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* Special device management
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*/
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#define SPECHSZ 64
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#if ((SPECHSZ&(SPECHSZ-1)) == 0)
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#define SPECHASH(rdev) (((rdev>>5)+(rdev))&(SPECHSZ-1))
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#else
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#define SPECHASH(rdev) (((unsigned)((rdev>>5)+(rdev)))%SPECHSZ)
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#endif
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extern struct vnode *speclisth[SPECHSZ];
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/*
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* Prototypes for special file operations on vnodes.
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*/
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extern vop_t **spec_vnodeop_p;
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struct nameidata;
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struct componentname;
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struct ucred;
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struct flock;
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struct buf;
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struct uio;
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int spec_vnoperate __P((struct vop_generic_args *));
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