601 lines
20 KiB
C
601 lines
20 KiB
C
/* $NetBSD: vnode.h,v 1.153 2006/02/16 20:17:20 perry Exp $ */
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/*
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* Copyright (c) 1989, 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. 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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* @(#)vnode.h 8.17 (Berkeley) 5/20/95
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*/
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#ifndef _SYS_VNODE_H_
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#define _SYS_VNODE_H_
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#include <sys/event.h>
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#include <sys/lock.h>
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#include <sys/queue.h>
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/* XXX: clean up includes later */
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#include <uvm/uvm_param.h> /* XXX */
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#include <uvm/uvm_pglist.h> /* XXX */
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#include <uvm/uvm_object.h> /* XXX */
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#include <uvm/uvm_extern.h> /* XXX */
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struct namecache;
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struct uvm_ractx;
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/*
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* The vnode is the focus of all file activity in UNIX. There is a
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* unique vnode allocated for each active file, each current directory,
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* each mounted-on file, text file, and the root.
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*/
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/*
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* Vnode types. VNON means no type.
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*/
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enum vtype { VNON, VREG, VDIR, VBLK, VCHR, VLNK, VSOCK, VFIFO, VBAD };
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#define VNODE_TYPES \
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"VNON", "VREG", "VDIR", "VBLK", "VCHR", "VLNK", "VSOCK", "VFIFO", "VBAD"
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/*
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* Vnode tag types.
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* These are for the benefit of external programs only (e.g., pstat)
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* and should NEVER be inspected by the kernel.
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*/
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enum vtagtype {
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VT_NON, VT_UFS, VT_NFS, VT_MFS, VT_MSDOSFS, VT_LFS, VT_LOFS,
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VT_FDESC, VT_PORTAL, VT_NULL, VT_UMAP, VT_KERNFS, VT_PROCFS,
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VT_AFS, VT_ISOFS, VT_UNION, VT_ADOSFS, VT_EXT2FS, VT_CODA,
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VT_FILECORE, VT_NTFS, VT_VFS, VT_OVERLAY, VT_SMBFS, VT_PTYFS,
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VT_TMPFS, VT_UDF, VT_SYSVBFS
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};
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#define VNODE_TAGS \
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"VT_NON", "VT_UFS", "VT_NFS", "VT_MFS", "VT_MSDOSFS", "VT_LFS", "VT_LOFS", \
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"VT_FDESC", "VT_PORTAL", "VT_NULL", "VT_UMAP", "VT_KERNFS", "VT_PROCFS", \
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"VT_AFS", "VT_ISOFS", "VT_UNION", "VT_ADOSFS", "VT_EXT2FS", "VT_CODA", \
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"VT_FILECORE", "VT_NTFS", "VT_VFS", "VT_OVERLAY", "VT_SMBFS", "VT_PTYFS", \
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"VT_TMPFS", "VT_UDF", "VT_SYSVBFS"
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LIST_HEAD(buflists, buf);
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/*
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* Reading or writing any of these items requires holding the appropriate lock.
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* v_freelist is locked by the global vnode_free_list simple lock.
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* v_mntvnodes is locked by the global mntvnodes simple lock.
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* v_flag, v_usecount, v_holdcount and v_writecount are
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* locked by the v_interlock simple lock
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*
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* Each underlying filesystem allocates its own private area and hangs
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* it from v_data.
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*/
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struct vnode {
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struct uvm_object v_uobj; /* the VM object */
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#define v_usecount v_uobj.uo_refs
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#define v_interlock v_uobj.vmobjlock
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voff_t v_size; /* size of file */
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int v_flag; /* flags */
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int v_numoutput; /* number of pending writes */
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long v_writecount; /* reference count of writers */
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long v_holdcnt; /* page & buffer references */
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struct mount *v_mount; /* ptr to vfs we are in */
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int (**v_op)(void *); /* vnode operations vector */
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TAILQ_ENTRY(vnode) v_freelist; /* vnode freelist */
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LIST_ENTRY(vnode) v_mntvnodes; /* vnodes for mount point */
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struct buflists v_cleanblkhd; /* clean blocklist head */
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struct buflists v_dirtyblkhd; /* dirty blocklist head */
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LIST_ENTRY(vnode) v_synclist; /* vnodes with dirty buffers */
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LIST_HEAD(, namecache) v_dnclist; /* namecaches for children */
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LIST_HEAD(, namecache) v_nclist; /* namecaches for our parent */
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union {
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struct mount *vu_mountedhere;/* ptr to mounted vfs (VDIR) */
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struct socket *vu_socket; /* unix ipc (VSOCK) */
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struct specinfo *vu_specinfo; /* device (VCHR, VBLK) */
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struct fifoinfo *vu_fifoinfo; /* fifo (VFIFO) */
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struct uvm_ractx *vu_ractx; /* read-ahead context (VREG) */
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} v_un;
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struct nqlease *v_lease; /* Soft reference to lease */
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enum vtype v_type; /* vnode type */
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enum vtagtype v_tag; /* type of underlying data */
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struct lock v_lock; /* lock for this vnode */
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struct lock *v_vnlock; /* pointer to lock */
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void *v_data; /* private data for fs */
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struct klist v_klist; /* knotes attached to vnode */
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};
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#define v_mountedhere v_un.vu_mountedhere
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#define v_socket v_un.vu_socket
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#define v_specinfo v_un.vu_specinfo
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#define v_fifoinfo v_un.vu_fifoinfo
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#define v_ractx v_un.vu_ractx
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/*
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* All vnode locking operations should use vp->v_vnlock. For leaf filesystems
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* (such as ffs, lfs, msdosfs, etc), vp->v_vnlock = &vp->v_lock. For
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* stacked filesystems, vp->v_vnlock may equal lowervp->v_vnlock.
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*
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* vp->v_vnlock may also be NULL, which indicates that a leaf node does not
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* export a struct lock for vnode locking. Stacked filesystems (such as
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* nullfs) must call the underlying fs for locking. See layerfs_ routines
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* for examples.
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*
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* All filesystems must (pretend to) understand lockmanager flags.
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*/
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/*
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* Vnode flags.
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*/
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#define VROOT 0x0001 /* root of its file system */
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#define VTEXT 0x0002 /* vnode is a pure text prototype */
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/* VSYSTEM only used to skip vflush()ing quota files */
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#define VSYSTEM 0x0004 /* vnode being used by kernel */
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/* VISTTY used when reading dead vnodes */
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#define VISTTY 0x0008 /* vnode represents a tty */
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#define VEXECMAP 0x0010 /* vnode has PROT_EXEC mappings */
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#define VWRITEMAP 0x0020 /* might have PROT_WRITE user mappings */
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#define VWRITEMAPDIRTY 0x0040 /* might have dirty pages due to VWRITEMAP */
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#define VLOCKSWORK 0x0080 /* FS supports locking discipline */
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#define VXLOCK 0x0100 /* vnode is locked to change underlying type */
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#define VXWANT 0x0200 /* process is waiting for vnode */
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#define VBWAIT 0x0400 /* waiting for output to complete */
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#define VALIASED 0x0800 /* vnode has an alias */
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#define VDIROP 0x1000 /* LFS: vnode is involved in a directory op */
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#define VLAYER 0x2000 /* vnode is on a layer filesystem */
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#define VONWORKLST 0x4000 /* On syncer work-list */
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#define VFREEING 0x8000 /* vnode is being freed */
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#define VNODE_FLAGBITS \
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"\20\1ROOT\2TEXT\3SYSTEM\4ISTTY\5EXECMAP\6WRITEMAP\7WRITEMAPDIRTY" \
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"\10LOCKSWORK\11XLOCK\12XWANT\13BWAIT\14ALIASED" \
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"\15DIROP\16LAYER\17ONWORKLIST\20FREEING"
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#define VSIZENOTSET ((voff_t)-1)
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/*
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* Use a global lock for all v_numoutput updates.
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* Define a convenience macro to increment by one.
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* Note: the only place where v_numoutput is decremented is in vwakeup().
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*/
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extern struct simplelock global_v_numoutput_slock;
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#define V_INCR_NUMOUTPUT(vp) do { \
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simple_lock(&global_v_numoutput_slock); \
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(vp)->v_numoutput++; \
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simple_unlock(&global_v_numoutput_slock); \
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} while (/*CONSTCOND*/ 0)
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/*
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* Vnode attributes. A field value of VNOVAL represents a field whose value
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* is unavailable (getattr) or which is not to be changed (setattr).
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*/
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struct vattr {
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enum vtype va_type; /* vnode type (for create) */
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mode_t va_mode; /* files access mode and type */
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nlink_t va_nlink; /* number of references to file */
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uid_t va_uid; /* owner user id */
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gid_t va_gid; /* owner group id */
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long va_fsid; /* file system id (dev for now) */
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ino_t va_fileid; /* file id */
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u_quad_t va_size; /* file size in bytes */
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long va_blocksize; /* blocksize preferred for i/o */
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struct timespec va_atime; /* time of last access */
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struct timespec va_mtime; /* time of last modification */
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struct timespec va_ctime; /* time file changed */
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struct timespec va_birthtime; /* time file created */
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u_long va_gen; /* generation number of file */
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u_long va_flags; /* flags defined for file */
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dev_t va_rdev; /* device the special file represents */
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u_quad_t va_bytes; /* bytes of disk space held by file */
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u_quad_t va_filerev; /* file modification number */
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u_int va_vaflags; /* operations flags, see below */
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long va_spare; /* remain quad aligned */
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};
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/*
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* Flags for va_vaflags.
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*/
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#define VA_UTIMES_NULL 0x01 /* utimes argument was NULL */
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#define VA_EXCLUSIVE 0x02 /* exclusive create request */
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#ifdef _KERNEL
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/*
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* Flags for ioflag.
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*/
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#define IO_UNIT 0x00010 /* do I/O as atomic unit */
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#define IO_APPEND 0x00020 /* append write to end */
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#define IO_SYNC (0x04|IO_DSYNC) /* sync I/O file integrity completion */
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#define IO_NODELOCKED 0x00080 /* underlying node already locked */
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#define IO_NDELAY 0x00100 /* FNDELAY flag set in file table */
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#define IO_DSYNC 0x00200 /* sync I/O data integrity completion */
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#define IO_ALTSEMANTICS 0x00400 /* use alternate i/o semantics */
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#define IO_NORMAL 0x00800 /* operate on regular data */
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#define IO_EXT 0x01000 /* operate on extended attributes */
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#define IO_ADV_MASK 0x00003 /* access pattern hint */
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#define IO_ADV_SHIFT 0
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#define IO_ADV_ENCODE(adv) (((adv) << IO_ADV_SHIFT) & IO_ADV_MASK)
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#define IO_ADV_DECODE(ioflag) (((ioflag) & IO_ADV_MASK) >> IO_ADV_SHIFT)
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/*
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* Modes.
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*/
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#define VREAD 00004 /* read, write, execute permissions */
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#define VWRITE 00002
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#define VEXEC 00001
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/*
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* Token indicating no attribute value yet assigned.
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*/
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#define VNOVAL (-1)
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/*
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* Convert between vnode types and inode formats (since POSIX.1
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* defines mode word of stat structure in terms of inode formats).
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*/
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extern const enum vtype iftovt_tab[];
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extern const int vttoif_tab[];
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#define IFTOVT(mode) (iftovt_tab[((mode) & S_IFMT) >> 12])
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#define VTTOIF(indx) (vttoif_tab[(int)(indx)])
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#define MAKEIMODE(indx, mode) (int)(VTTOIF(indx) | (mode))
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/*
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* Flags to various vnode functions.
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*/
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#define SKIPSYSTEM 0x0001 /* vflush: skip vnodes marked VSYSTEM */
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#define FORCECLOSE 0x0002 /* vflush: force file closeure */
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#define WRITECLOSE 0x0004 /* vflush: only close writable files */
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#define DOCLOSE 0x0008 /* vclean: close active files */
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#define V_SAVE 0x0001 /* vinvalbuf: sync file first */
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/* vn_start_write: */
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#define V_WAIT 0x0001 /* sleep for suspend */
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#define V_NOWAIT 0x0002 /* don't sleep for suspend */
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#define V_SLEEPONLY 0x0004 /* just return after sleep */
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#define V_PCATCH 0x0008 /* sleep witch PCATCH set */
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#define V_LOWER 0x0010 /* lower level operation */
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/*
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* Flags to various vnode operations.
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*/
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#define REVOKEALL 0x0001 /* revoke: revoke all aliases */
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#define FSYNC_WAIT 0x0001 /* fsync: wait for completion */
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#define FSYNC_DATAONLY 0x0002 /* fsync: hint: sync file data only */
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#define FSYNC_RECLAIM 0x0004 /* fsync: hint: vnode is being reclaimed */
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#define FSYNC_LAZY 0x0008 /* fsync: lazy sync (trickle) */
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#define FSYNC_CACHE 0x0100 /* fsync: flush disk caches too */
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#define UPDATE_WAIT 0x0001 /* update: wait for completion */
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#define UPDATE_DIROP 0x0002 /* update: hint to fs to wait or not */
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#define UPDATE_CLOSE 0x0004 /* update: clean up on close */
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#define HOLDRELE(vp) holdrele(vp)
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#define VHOLD(vp) vhold(vp)
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#define VREF(vp) vref(vp)
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TAILQ_HEAD(freelst, vnode);
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extern struct freelst vnode_hold_list; /* free vnodes referencing buffers */
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extern struct freelst vnode_free_list; /* vnode free list */
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extern struct simplelock vnode_free_list_slock;
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void holdrelel(struct vnode *);
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void vholdl(struct vnode *);
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void vref(struct vnode *);
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static __inline void holdrele(struct vnode *) __attribute__((__unused__));
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static __inline void vhold(struct vnode *) __attribute__((__unused__));
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#define VATTR_NULL(vap) vattr_null(vap)
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/*
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* decrease buf or page ref
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*/
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static __inline void
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holdrele(struct vnode *vp)
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{
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simple_lock(&vp->v_interlock);
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holdrelel(vp);
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simple_unlock(&vp->v_interlock);
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}
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/*
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* increase buf or page ref
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*/
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static __inline void
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vhold(struct vnode *vp)
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{
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simple_lock(&vp->v_interlock);
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vholdl(vp);
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simple_unlock(&vp->v_interlock);
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}
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#define NULLVP ((struct vnode *)NULL)
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#define VN_KNOTE(vp, b) KNOTE(&vp->v_klist, (b))
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/*
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* Global vnode data.
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*/
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extern struct vnode *rootvnode; /* root (i.e. "/") vnode */
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extern int desiredvnodes; /* number of vnodes desired */
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extern long numvnodes; /* current number of vnodes */
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extern time_t syncdelay; /* max time to delay syncing data */
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extern time_t filedelay; /* time to delay syncing files */
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extern time_t dirdelay; /* time to delay syncing directories */
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extern time_t metadelay; /* time to delay syncing metadata */
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/*
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* Macro/function to check for client cache inconsistency w.r.t. leasing.
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*/
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#define LEASE_READ 0x1 /* Check lease for readers */
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#define LEASE_WRITE 0x2 /* Check lease for modifiers */
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#endif /* _KERNEL */
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/*
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* Mods for exensibility.
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*/
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/*
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* Flags for vdesc_flags:
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*/
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#define VDESC_MAX_VPS 8
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/* Low order 16 flag bits are reserved for willrele flags for vp arguments. */
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#define VDESC_VP0_WILLRELE 0x00000001
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#define VDESC_VP1_WILLRELE 0x00000002
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#define VDESC_VP2_WILLRELE 0x00000004
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#define VDESC_VP3_WILLRELE 0x00000008
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#define VDESC_VP0_WILLUNLOCK 0x00000100
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#define VDESC_VP1_WILLUNLOCK 0x00000200
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#define VDESC_VP2_WILLUNLOCK 0x00000400
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#define VDESC_VP3_WILLUNLOCK 0x00000800
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#define VDESC_VP0_WILLPUT 0x00000101
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#define VDESC_VP1_WILLPUT 0x00000202
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#define VDESC_VP2_WILLPUT 0x00000404
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#define VDESC_VP3_WILLPUT 0x00000808
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#define VDESC_NOMAP_VPP 0x00010000
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#define VDESC_VPP_WILLRELE 0x00020000
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/*
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* VDESC_NO_OFFSET is used to identify the end of the offset list
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* and in places where no such field exists.
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*/
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#define VDESC_NO_OFFSET -1
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/*
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* This structure describes the vnode operation taking place.
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*/
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struct vnodeop_desc {
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int vdesc_offset; /* offset in vector--first for speed */
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const char *vdesc_name; /* a readable name for debugging */
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int vdesc_flags; /* VDESC_* flags */
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/*
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* These ops are used by bypass routines to map and locate arguments.
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* Creds and procs are not needed in bypass routines, but sometimes
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* they are useful to (for example) transport layers.
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* Nameidata is useful because it has a cred in it.
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*/
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const int *vdesc_vp_offsets; /* list ended by VDESC_NO_OFFSET */
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int vdesc_vpp_offset; /* return vpp location */
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int vdesc_cred_offset; /* cred location, if any */
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int vdesc_proc_offset; /* proc location, if any */
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int vdesc_componentname_offset; /* if any */
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/*
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* Finally, we've got a list of private data (about each operation)
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* for each transport layer. (Support to manage this list is not
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* yet part of BSD.)
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*/
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caddr_t *vdesc_transports;
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};
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#ifdef _KERNEL
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#include <sys/mallocvar.h>
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MALLOC_DECLARE(M_CACHE);
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MALLOC_DECLARE(M_VNODE);
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/*
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* A list of all the operation descs.
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*/
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extern struct vnodeop_desc *vnodeop_descs[];
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/*
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* Interlock for scanning list of vnodes attached to a mountpoint
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*/
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extern struct simplelock mntvnode_slock;
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/*
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* Union filesystem hook for vn_readdir().
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*/
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extern int (*vn_union_readdir_hook) (struct vnode **, struct file *, struct lwp *);
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/*
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* This macro is very helpful in defining those offsets in the vdesc struct.
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*
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|
* This is stolen from X11R4. I ingored all the fancy stuff for
|
|
* Crays, so if you decide to port this to such a serious machine,
|
|
* you might want to consult Intrisics.h's XtOffset{,Of,To}.
|
|
*/
|
|
#define VOPARG_OFFSET(p_type,field) \
|
|
((int) (((char *) (&(((p_type)NULL)->field))) - ((char *) NULL)))
|
|
#define VOPARG_OFFSETOF(s_type,field) \
|
|
VOPARG_OFFSET(s_type*,field)
|
|
#define VOPARG_OFFSETTO(S_TYPE,S_OFFSET,STRUCT_P) \
|
|
((S_TYPE)(((char*)(STRUCT_P))+(S_OFFSET)))
|
|
|
|
|
|
/*
|
|
* This structure is used to configure the new vnodeops vector.
|
|
*/
|
|
struct vnodeopv_entry_desc {
|
|
const struct vnodeop_desc *opve_op; /* which operation this is */
|
|
int (*opve_impl)(void *); /* code implementing this operation */
|
|
};
|
|
struct vnodeopv_desc {
|
|
/* ptr to the ptr to the vector where op should go */
|
|
int (***opv_desc_vector_p)(void *);
|
|
const struct vnodeopv_entry_desc *opv_desc_ops; /* null terminated list */
|
|
};
|
|
|
|
/*
|
|
* A default routine which just returns an error.
|
|
*/
|
|
int vn_default_error(void *);
|
|
|
|
/*
|
|
* A generic structure.
|
|
* This can be used by bypass routines to identify generic arguments.
|
|
*/
|
|
struct vop_generic_args {
|
|
struct vnodeop_desc *a_desc;
|
|
/* other random data follows, presumably */
|
|
};
|
|
|
|
/*
|
|
* VOCALL calls an op given an ops vector. We break it out because BSD's
|
|
* vclean changes the ops vector and then wants to call ops with the old
|
|
* vector.
|
|
*/
|
|
/*
|
|
* actually, vclean doesn't use it anymore, but nfs does,
|
|
* for device specials and fifos.
|
|
*/
|
|
#define VOCALL(OPSV,OFF,AP) (( *((OPSV)[(OFF)])) (AP))
|
|
|
|
/*
|
|
* This call works for vnodes in the kernel.
|
|
*/
|
|
#define VCALL(VP,OFF,AP) VOCALL((VP)->v_op,(OFF),(AP))
|
|
#define VDESC(OP) (& __CONCAT(OP,_desc))
|
|
#define VOFFSET(OP) (VDESC(OP)->vdesc_offset)
|
|
|
|
/*
|
|
* Functions to gate filesystem write operations. Declared static inline
|
|
* here because they usually go into time critical code paths.
|
|
*/
|
|
#include <sys/mount.h>
|
|
|
|
int vn_start_write(struct vnode *, struct mount **, int);
|
|
void vn_finished_write(struct mount *, int);
|
|
|
|
/*
|
|
* Finally, include the default set of vnode operations.
|
|
*/
|
|
#include <sys/vnode_if.h>
|
|
|
|
/*
|
|
* Public vnode manipulation functions.
|
|
*/
|
|
struct file;
|
|
struct filedesc;
|
|
struct nameidata;
|
|
struct proc;
|
|
struct stat;
|
|
struct ucred;
|
|
struct uio;
|
|
struct vattr;
|
|
struct vnode;
|
|
|
|
/* see vnode(9) */
|
|
int bdevvp(dev_t, struct vnode **);
|
|
int cdevvp(dev_t, struct vnode **);
|
|
struct vnode *
|
|
checkalias(struct vnode *, dev_t, struct mount *);
|
|
int getnewvnode(enum vtagtype, struct mount *, int (**)(void *),
|
|
struct vnode **);
|
|
void ungetnewvnode(struct vnode *);
|
|
int vaccess(enum vtype, mode_t, uid_t, gid_t, mode_t, struct ucred *);
|
|
void vattr_null(struct vattr *);
|
|
int vcount(struct vnode *);
|
|
void vdevgone(int, int, int, enum vtype);
|
|
int vfinddev(dev_t, enum vtype, struct vnode **);
|
|
int vflush(struct mount *, struct vnode *, int);
|
|
void vflushbuf(struct vnode *, int);
|
|
int vget(struct vnode *, int);
|
|
void vgone(struct vnode *);
|
|
void vgonel(struct vnode *, struct lwp *);
|
|
int vinvalbuf(struct vnode *, int, struct ucred *,
|
|
struct lwp *, int, int);
|
|
void vprint(const char *, struct vnode *);
|
|
void vput(struct vnode *);
|
|
int vrecycle(struct vnode *, struct simplelock *, struct lwp *);
|
|
void vrele(struct vnode *);
|
|
int vtruncbuf(struct vnode *, daddr_t, int, int);
|
|
void vwakeup(struct buf *);
|
|
|
|
/* see vnsubr(9) */
|
|
int vn_bwrite(void *);
|
|
int vn_close(struct vnode *, int, struct ucred *, struct lwp *);
|
|
int vn_isunder(struct vnode *, struct vnode *, struct lwp *);
|
|
int vn_lock(struct vnode *, int);
|
|
void vn_markexec(struct vnode *);
|
|
int vn_marktext(struct vnode *);
|
|
int vn_open(struct nameidata *, int, int);
|
|
int vn_rdwr(enum uio_rw, struct vnode *, caddr_t, int, off_t, enum uio_seg,
|
|
int, struct ucred *, size_t *, struct lwp *);
|
|
int vn_readdir(struct file *, char *, int, u_int, int *, struct lwp *,
|
|
off_t **, int *);
|
|
void vn_restorerecurse(struct vnode *, u_int);
|
|
u_int vn_setrecurse(struct vnode *);
|
|
int vn_stat(struct vnode *, struct stat *, struct lwp *);
|
|
int vn_kqfilter(struct file *, struct knote *);
|
|
int vn_writechk(struct vnode *);
|
|
int vn_extattr_get(struct vnode *, int, int, const char *, size_t *,
|
|
void *, struct lwp *);
|
|
int vn_extattr_set(struct vnode *, int, int, const char *, size_t,
|
|
const void *, struct lwp *);
|
|
int vn_extattr_rm(struct vnode *, int, int, const char *, struct lwp *);
|
|
int vn_cow_establish(struct vnode *, int (*)(void *, struct buf *),
|
|
void *);
|
|
int vn_cow_disestablish(struct vnode *, int (*)(void *, struct buf *),
|
|
void *);
|
|
void vn_ra_allocctx(struct vnode *);
|
|
|
|
/* initialise global vnode management */
|
|
void vntblinit(void);
|
|
|
|
/* misc stuff */
|
|
void vn_syncer_add_to_worklist(struct vnode *, int);
|
|
void vn_syncer_remove_from_worklist(struct vnode *);
|
|
int speedup_syncer(void);
|
|
|
|
/* from vfs_syscalls.c - abused by compat code */
|
|
int getvnode(struct filedesc *, int, struct file **);
|
|
|
|
/* see vfssubr(9) */
|
|
void vfs_getnewfsid(struct mount *);
|
|
int vfs_drainvnodes(long target, struct lwp *);
|
|
void vfs_write_resume(struct mount *);
|
|
int vfs_write_suspend(struct mount *, int, int);
|
|
#ifdef DDB
|
|
void vfs_vnode_print(struct vnode *, int, void (*)(const char *, ...));
|
|
void vfs_mount_print(struct mount *, int, void (*)(const char *, ...));
|
|
#endif /* DDB */
|
|
#endif /* _KERNEL */
|
|
|
|
#endif /* !_SYS_VNODE_H_ */
|