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VFS namecache, as is done by the Coda module on Linux. Unlike the Coda namecache, the global VFS namecache isn't tagged by credential, so use ore conservative flushing behavior (for now) when CODA_PURGEUSER is issued by Venus. This improves overall integration with the FreeBSD VFS, including allowing __getcwd() to work better, procfs/procstat monitoring, and so on. This improves shell behavior in many cases, and improves ".." handling. It may lead to some slowdown until we've implemented a specific access cache, which should net improve performance, but in the mean time, lookup access control now always goes to Venus, whereas previously it didn't. MFC after: 1 month
85 lines
2.8 KiB
C
85 lines
2.8 KiB
C
/*-
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*
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* Coda: an Experimental Distributed File System
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* Release 3.1
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*
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* Copyright (c) 1987-1998 Carnegie Mellon University
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* All Rights Reserved
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*
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* Permission to use, copy, modify and distribute this software and its
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* documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation, and
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* that credit is given to Carnegie Mellon University in all documents
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* and publicity pertaining to direct or indirect use of this code or its
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* derivatives.
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*
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* CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS,
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* SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS
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* FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON
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* DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER
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* RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF
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* ANY DERIVATIVE WORK.
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*
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* Carnegie Mellon encourages users of this software to return any
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* improvements or extensions that they make, and to grant Carnegie
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* Mellon the rights to redistribute these changes without encumbrance.
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*
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* @(#) src/sys/coda/coda_vnops.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
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* $FreeBSD$
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*/
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/*
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* Mach Operating System
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* Copyright (c) 1990 Carnegie-Mellon University
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* Copyright (c) 1989 Carnegie-Mellon University
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* All rights reserved. The CMU software License Agreement specifies
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* the terms and conditions for use and redistribution.
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*/
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/*
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* This code was written for the Coda filesystem at Carnegie Mellon
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* University. Contributers include David Steere, James Kistler, and
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* M. Satyanarayanan.
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*/
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#ifndef _CODA_VNOPS_H_
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#define _CODA_VNOPS_H_
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/*
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* FreeBSD interfaces to the vnodeops.
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*/
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vop_open_t coda_open;
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vop_close_t coda_close;
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vop_read_t coda_read;
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vop_write_t coda_write;
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vop_ioctl_t coda_ioctl;
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vop_getattr_t coda_getattr;
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vop_setattr_t coda_setattr;
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vop_access_t coda_access;
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vop_readlink_t coda_readlink;
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vop_fsync_t coda_fsync;
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vop_inactive_t coda_inactive;
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vop_cachedlookup_t coda_lookup;
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vop_create_t coda_create;
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vop_remove_t coda_remove;
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vop_link_t coda_link;
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vop_rename_t coda_rename;
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vop_mkdir_t coda_mkdir;
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vop_rmdir_t coda_rmdir;
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vop_symlink_t coda_symlink;
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vop_readdir_t coda_readdir;
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vop_strategy_t coda_strategy;
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vop_reclaim_t coda_reclaim;
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vop_lock1_t coda_lock;
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vop_unlock_t coda_unlock;
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vop_islocked_t coda_islocked;
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vop_pathconf_t coda_pathconf;
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int coda_rdwr(struct vnode *vp, struct uio *uiop, enum uio_rw rw,
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int ioflag, struct ucred *cred, struct thread *td);
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void coda_print_cred(struct ucred *cred);
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#endif /* !_CODA_VNOPS_H_ */
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