c897b81311
Also, remove maxsockets. If you look carefully you'll notice that the old zone allocator never honored this anyway.
695 lines
24 KiB
C
695 lines
24 KiB
C
/*
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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. 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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* @(#)vnode.h 8.7 (Berkeley) 2/4/94
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* $FreeBSD$
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*/
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#ifndef _SYS_VNODE_H_
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#define _SYS_VNODE_H_
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/*
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* XXX - compatability until lockmgr() goes away or all the #includes are
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* updated.
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*/
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#include <sys/lockmgr.h>
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#include <sys/queue.h>
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#include <sys/_lock.h>
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#include <sys/_mutex.h>
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#include <sys/selinfo.h>
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#include <sys/uio.h>
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#include <sys/acl.h>
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#include <vm/uma.h>
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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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/*
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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_UNUSED, VT_PC, VT_LFS, VT_LOFS, VT_FDESC,
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VT_PORTAL, VT_NULL, VT_UMAP, VT_KERNFS, VT_PROCFS, VT_AFS, VT_ISOFS,
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VT_UNION, VT_MSDOSFS, VT_DEVFS, VT_TFS, VT_VFS, VT_CODA, VT_NTFS,
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VT_HPFS, VT_NWFS, VT_PSEUDOFS, VT_SMBFS
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};
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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. If non-null, this area is freed in getnewvnode().
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*/
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TAILQ_HEAD(buflists, buf);
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typedef int vop_t(void *);
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struct namecache;
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struct vpollinfo {
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struct mtx vpi_lock; /* lock to protect below */
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struct selinfo vpi_selinfo; /* identity of poller(s) */
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short vpi_events; /* what they are looking for */
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short vpi_revents; /* what has happened */
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};
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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 mutex.
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* v_mntvnodes is locked by the global mntvnodes mutex.
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* v_flag, v_usecount, v_holdcount and v_writecount are
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* locked by the v_interlock mutex.
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* v_pollinfo is locked by the lock contained inside it.
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*/
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struct vnode {
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u_long v_flag; /* vnode flags (see below) */
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int v_usecount; /* reference count of users */
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int v_writecount; /* reference count of writers */
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int v_holdcnt; /* page & buffer references */
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u_long v_id; /* capability identifier */
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struct mount *v_mount; /* ptr to vfs we are in */
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vop_t **v_op; /* vnode operations vector */
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TAILQ_ENTRY(vnode) v_freelist; /* vnode freelist */
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TAILQ_ENTRY(vnode) v_nmntvnodes; /* 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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long v_numoutput; /* num of writes in progress */
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enum vtype v_type; /* vnode type */
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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 {
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struct specinfo *vu_specinfo; /* device (VCHR, VBLK) */
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SLIST_ENTRY(vnode) vu_specnext;
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} vu_spec;
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struct fifoinfo *vu_fifoinfo; /* fifo (VFIFO) */
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} v_un;
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daddr_t v_lastw; /* last write (write cluster) */
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daddr_t v_cstart; /* start block of cluster */
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daddr_t v_lasta; /* last allocation (cluster) */
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int v_clen; /* length of current cluster */
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struct vm_object *v_object; /* Place to store VM object */
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struct mtx v_interlock; /* lock on usecount and flag */
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struct lock v_lock; /* used if fs don't have one */
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struct lock *v_vnlock; /* pointer to vnode lock */
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enum vtagtype v_tag; /* type of underlying data */
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void *v_data; /* private data for fs */
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LIST_HEAD(, namecache) v_cache_src; /* Cache entries from us */
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TAILQ_HEAD(, namecache) v_cache_dst; /* Cache entries to us */
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struct vnode *v_dd; /* .. vnode */
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u_long v_ddid; /* .. capability identifier */
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struct vpollinfo *v_pollinfo;
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struct thread *v_vxproc; /* thread owning VXLOCK */
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#ifdef DEBUG_LOCKS
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const char *filename; /* Source file doing locking */
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int line; /* Line number doing locking */
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#endif
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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_rdev v_un.vu_spec.vu_specinfo
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#define v_specnext v_un.vu_spec.vu_specnext
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#define v_fifoinfo v_un.vu_fifoinfo
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#define VN_POLLEVENT(vp, events) \
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do { \
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if ((vp)->v_pollinfo != NULL && \
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(vp)->v_pollinfo->vpi_events & (events)) \
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vn_pollevent((vp), (events)); \
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} while (0)
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#define VN_KNOTE(vp, b) \
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do { \
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if ((vp)->v_pollinfo != NULL) \
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KNOTE(&vp->v_pollinfo->vpi_selinfo.si_note, (b)); \
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} while (0)
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/*
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* Vnode flags.
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*/
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#define VROOT 0x00001 /* root of its file system */
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#define VTEXT 0x00002 /* vnode is a pure text prototype */
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#define VSYSTEM 0x00004 /* vnode being used by kernel */
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#define VISTTY 0x00008 /* vnode represents a tty */
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#define VXLOCK 0x00100 /* vnode is locked to change underlying type */
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#define VXWANT 0x00200 /* thread is waiting for vnode */
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#define VBWAIT 0x00400 /* waiting for output to complete */
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#define VNOSYNC 0x01000 /* unlinked, stop syncing */
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/* open for business 0x01000 */
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#define VOBJBUF 0x02000 /* Allocate buffers in VM object */
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#define VCOPYONWRITE 0x04000 /* vnode is doing copy-on-write */
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#define VAGE 0x08000 /* Insert vnode at head of free list */
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#define VOLOCK 0x10000 /* vnode is locked waiting for an object */
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#define VOWANT 0x20000 /* a thread is waiting for VOLOCK */
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#define VDOOMED 0x40000 /* This vnode is being recycled */
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#define VFREE 0x80000 /* This vnode is on the freelist */
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/* open for business 0x100000 */
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#define VONWORKLST 0x200000 /* On syncer work-list */
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#define VMOUNT 0x400000 /* Mount in progress */
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#define VOBJDIRTY 0x800000 /* object might be dirty */
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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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u_short va_mode; /* files access mode and type */
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short 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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udev_t va_fsid; /* file system id */
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long 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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u_long va_gen; /* generation number of file */
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u_long va_flags; /* flags defined for file */
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udev_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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/*
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* Flags for ioflag. (high 16 bits used to ask for read-ahead and
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* help with write clustering)
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*/
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#define IO_UNIT 0x01 /* do I/O as atomic unit */
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#define IO_APPEND 0x02 /* append write to end */
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#define IO_SYNC 0x04 /* do I/O synchronously */
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#define IO_NODELOCKED 0x08 /* underlying node already locked */
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#define IO_NDELAY 0x10 /* FNDELAY flag set in file table */
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#define IO_VMIO 0x20 /* data already in VMIO space */
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#define IO_INVAL 0x40 /* invalidate after I/O */
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#define IO_ASYNC 0x80 /* bawrite rather then bdwrite */
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#define IO_DIRECT 0x100 /* attempt to bypass buffer cache */
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#define IO_NOWDRAIN 0x200 /* do not block on wdrain */
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/*
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* Modes. Some values same as Ixxx entries from inode.h for now.
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*/
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#define VADMIN 010000 /* permission to administer vnode */
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#define VSUID 004000 /* set user id on execution */
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#define VSGID 002000 /* set group id on execution */
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#define VSVTX 001000 /* save swapped text even after use */
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#define VREAD 000400 /* read, write, execute permissions */
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#define VWRITE 000200
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#define VEXEC 000100
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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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* LK_TIMELOCK timeout for vnode locks (used mainly by the pageout daemon)
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*/
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#define VLKTIMEOUT (hz / 20 + 1)
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#ifdef _KERNEL
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#ifdef MALLOC_DECLARE
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MALLOC_DECLARE(M_VNODE);
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#endif
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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 enum vtype iftovt_tab[];
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extern 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 closure */
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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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#define REVOKEALL 0x0001 /* vop_revoke: revoke all aliases */
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#define V_WAIT 0x0001 /* vn_start_write: sleep for suspend */
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#define V_NOWAIT 0x0002 /* vn_start_write: don't sleep for suspend */
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#define V_XSLEEP 0x0004 /* vn_start_write: just return after sleep */
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#define VREF(vp) vref(vp)
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#ifdef DIAGNOSTIC
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#define VATTR_NULL(vap) vattr_null(vap)
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#else
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#define VATTR_NULL(vap) (*(vap) = va_null) /* initialize a vattr */
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#endif /* DIAGNOSTIC */
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#define NULLVP ((struct vnode *)NULL)
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#define VNODEOP_SET(f) \
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C_SYSINIT(f##init, SI_SUB_VFS, SI_ORDER_SECOND, vfs_add_vnodeops, &f); \
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C_SYSUNINIT(f##uninit, SI_SUB_VFS, SI_ORDER_SECOND, vfs_rm_vnodeops, &f);
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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 uma_zone_t namei_zone;
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extern int prtactive; /* nonzero to call vprint() */
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extern struct vattr va_null; /* predefined null vattr structure */
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extern int vfs_ioopt;
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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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extern void (*lease_updatetime)(int deltat);
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#define VSHOULDFREE(vp) \
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(!((vp)->v_flag & (VFREE|VDOOMED)) && \
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!(vp)->v_holdcnt && !(vp)->v_usecount && \
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(!(vp)->v_object || \
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!((vp)->v_object->ref_count || (vp)->v_object->resident_page_count)))
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#define VMIGHTFREE(vp) \
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(!((vp)->v_flag & (VFREE|VDOOMED|VXLOCK)) && \
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LIST_EMPTY(&(vp)->v_cache_src) && !(vp)->v_usecount)
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#define VSHOULDBUSY(vp) \
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(((vp)->v_flag & VFREE) && \
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((vp)->v_holdcnt || (vp)->v_usecount))
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#define VI_LOCK(vp) mtx_lock(&(vp)->v_interlock)
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#define VI_TRYLOCK(vp) mtx_trylock(&(vp)->v_interlock)
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#define VI_UNLOCK(vp) mtx_unlock(&(vp)->v_interlock)
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#endif /* _KERNEL */
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/*
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* Mods for extensibility.
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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 16
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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 0x0001
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#define VDESC_VP1_WILLRELE 0x0002
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#define VDESC_VP2_WILLRELE 0x0004
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#define VDESC_VP3_WILLRELE 0x0008
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#define VDESC_NOMAP_VPP 0x0100
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#define VDESC_VPP_WILLRELE 0x0200
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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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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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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_thread_offset; /* thread 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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/*
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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 mtx mntvnode_mtx;
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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 ignored all the fancy stuff for
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* Crays, so if you decide to port this to such a serious machine,
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* you might want to consult Intrinsic.h's XtOffset{,Of,To}.
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*/
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#define VOPARG_OFFSET(p_type,field) \
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((int) (((char *) (&(((p_type)NULL)->field))) - ((char *) NULL)))
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#define VOPARG_OFFSETOF(s_type,field) \
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VOPARG_OFFSET(s_type*,field)
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#define VOPARG_OFFSETTO(S_TYPE,S_OFFSET,STRUCT_P) \
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((S_TYPE)(((char*)(STRUCT_P))+(S_OFFSET)))
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/*
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* This structure is used to configure the new vnodeops vector.
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*/
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struct vnodeopv_entry_desc {
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struct vnodeop_desc *opve_op; /* which operation this is */
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vop_t *opve_impl; /* code implementing this operation */
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};
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struct vnodeopv_desc {
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/* ptr to the ptr to the vector where op should go */
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vop_t ***opv_desc_vector_p;
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struct vnodeopv_entry_desc *opv_desc_ops; /* null terminated list */
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};
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/*
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* A generic structure.
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* This can be used by bypass routines to identify generic arguments.
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*/
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struct vop_generic_args {
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struct vnodeop_desc *a_desc;
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/* other random data follows, presumably */
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};
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#ifdef DEBUG_VFS_LOCKS
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/*
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* Macros to aid in tracing VFS locking problems. Not totally
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* reliable since if the thread sleeps between changing the lock
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* state and checking it with the assert, some other thread could
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* change the state. They are good enough for debugging a single
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* filesystem using a single-threaded test. I find that 'cvs co src'
|
|
* is a pretty good test.
|
|
*/
|
|
|
|
/*
|
|
* [dfr] Kludge until I get around to fixing all the vfs locking.
|
|
*/
|
|
#define IS_LOCKING_VFS(vp) ((vp)->v_tag == VT_UFS \
|
|
|| (vp)->v_tag == VT_NFS \
|
|
|| (vp)->v_tag == VT_LFS \
|
|
|| (vp)->v_tag == VT_ISOFS \
|
|
|| (vp)->v_tag == VT_MSDOSFS \
|
|
|| (vp)->v_tag == VT_DEVFS)
|
|
|
|
#define ASSERT_VOP_LOCKED(vp, str) \
|
|
do { \
|
|
struct vnode *_vp = (vp); \
|
|
\
|
|
if (_vp && IS_LOCKING_VFS(_vp) && !VOP_ISLOCKED(_vp, NULL)) \
|
|
panic("%s: %p is not locked but should be", str, _vp); \
|
|
} while (0)
|
|
|
|
#define ASSERT_VOP_UNLOCKED(vp, str) \
|
|
do { \
|
|
struct vnode *_vp = (vp); \
|
|
int lockstate; \
|
|
\
|
|
if (_vp && IS_LOCKING_VFS(_vp)) { \
|
|
lockstate = VOP_ISLOCKED(_vp, curthread); \
|
|
if (lockstate == LK_EXCLUSIVE) \
|
|
panic("%s: %p is locked but should not be", \
|
|
str, _vp); \
|
|
} \
|
|
} while (0)
|
|
|
|
#define ASSERT_VOP_ELOCKED(vp, str) \
|
|
do { \
|
|
struct vnode *_vp = (vp); \
|
|
\
|
|
if (_vp && IS_LOCKING_VFS(_vp) && \
|
|
VOP_ISLOCKED(_vp, curthread) != LK_EXCLUSIVE) \
|
|
panic("%s: %p is not exclusive locked but should be", \
|
|
str, _vp); \
|
|
} while (0)
|
|
|
|
#define ASSERT_VOP_ELOCKED_OTHER(vp, str) \
|
|
do { \
|
|
struct vnode *_vp = (vp); \
|
|
\
|
|
if (_vp && IS_LOCKING_VFS(_vp) && \
|
|
VOP_ISLOCKED(_vp, curthread) != LK_EXCLOTHER) \
|
|
panic("%s: %p is not exclusive locked by another thread", \
|
|
str, _vp); \
|
|
} while (0)
|
|
|
|
#define ASSERT_VOP_SLOCKED(vp, str) \
|
|
do { \
|
|
struct vnode *_vp = (vp); \
|
|
\
|
|
if (_vp && IS_LOCKING_VFS(_vp) && \
|
|
VOP_ISLOCKED(_vp, NULL) != LK_SHARED) \
|
|
panic("%s: %p is not locked shared but should be", \
|
|
str, _vp); \
|
|
} while (0)
|
|
|
|
#else
|
|
|
|
#define ASSERT_VOP_LOCKED(vp, str)
|
|
#define ASSERT_VOP_UNLOCKED(vp, str)
|
|
|
|
#endif
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
#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)
|
|
|
|
/*
|
|
* VMIO support inline
|
|
*/
|
|
|
|
extern int vmiodirenable;
|
|
|
|
static __inline int
|
|
vn_canvmio(struct vnode *vp)
|
|
{
|
|
if (vp && (vp->v_type == VREG || (vmiodirenable && vp->v_type == VDIR)))
|
|
return(TRUE);
|
|
return(FALSE);
|
|
}
|
|
|
|
/*
|
|
* Finally, include the default set of vnode operations.
|
|
*/
|
|
#include "vnode_if.h"
|
|
|
|
/*
|
|
* Public vnode manipulation functions.
|
|
*/
|
|
struct componentname;
|
|
struct file;
|
|
struct mount;
|
|
struct nameidata;
|
|
struct ostat;
|
|
struct thread;
|
|
struct proc;
|
|
struct stat;
|
|
struct nstat;
|
|
struct ucred;
|
|
struct uio;
|
|
struct vattr;
|
|
struct vnode;
|
|
|
|
extern int (*lease_check_hook)(struct vop_lease_args *);
|
|
|
|
struct vnode *addaliasu(struct vnode *vp, udev_t nvp_rdev);
|
|
int bdevvp(dev_t dev, struct vnode **vpp);
|
|
/* cache_* may belong in namei.h. */
|
|
void cache_enter(struct vnode *dvp, struct vnode *vp,
|
|
struct componentname *cnp);
|
|
int cache_lookup(struct vnode *dvp, struct vnode **vpp,
|
|
struct componentname *cnp);
|
|
void cache_purge(struct vnode *vp);
|
|
void cache_purgevfs(struct mount *mp);
|
|
int cache_leaf_test(struct vnode *vp);
|
|
void cvtstat(struct stat *st, struct ostat *ost);
|
|
void cvtnstat(struct stat *sb, struct nstat *nsb);
|
|
int getnewvnode(enum vtagtype tag,
|
|
struct mount *mp, vop_t **vops, struct vnode **vpp);
|
|
int lease_check(struct vop_lease_args *ap);
|
|
int spec_vnoperate(struct vop_generic_args *);
|
|
int speedup_syncer(void);
|
|
#define textvp_fullpath(p, rb, rfb) \
|
|
vn_fullpath(FIRST_THREAD_IN_PROC(p), (p)->p_textvp, rb, rfb)
|
|
int vn_fullpath(struct thread *td, struct vnode *vn,
|
|
char **retbuf, char **freebuf);
|
|
int vaccess(enum vtype type, mode_t file_mode, uid_t uid, gid_t gid,
|
|
mode_t acc_mode, struct ucred *cred, int *privused);
|
|
int vaccess_acl_posix1e(enum vtype type, uid_t file_uid,
|
|
gid_t file_gid, struct acl *acl, mode_t acc_mode,
|
|
struct ucred *cred, int *privused);
|
|
void vattr_null(struct vattr *vap);
|
|
int vcount(struct vnode *vp);
|
|
void vdrop(struct vnode *);
|
|
int vfinddev(dev_t dev, enum vtype type, struct vnode **vpp);
|
|
void vfs_add_vnodeops(const void *);
|
|
void vfs_rm_vnodeops(const void *);
|
|
int vflush(struct mount *mp, int rootrefs, int flags);
|
|
int vget(struct vnode *vp, int lockflag, struct thread *td);
|
|
void vgone(struct vnode *vp);
|
|
void vgonel(struct vnode *vp, struct thread *td);
|
|
void vhold(struct vnode *);
|
|
int vinvalbuf(struct vnode *vp, int save, struct ucred *cred,
|
|
struct thread *td, int slpflag, int slptimeo);
|
|
int vtruncbuf(struct vnode *vp, struct ucred *cred, struct thread *td,
|
|
off_t length, int blksize);
|
|
void vprint(char *label, struct vnode *vp);
|
|
int vrecycle(struct vnode *vp, struct mtx *inter_lkp,
|
|
struct thread *td);
|
|
int vn_close(struct vnode *vp,
|
|
int flags, struct ucred *cred, struct thread *td);
|
|
void vn_finished_write(struct mount *mp);
|
|
int vn_isdisk(struct vnode *vp, int *errp);
|
|
int vn_lock(struct vnode *vp, int flags, struct thread *td);
|
|
#ifdef DEBUG_LOCKS
|
|
int debug_vn_lock(struct vnode *vp, int flags, struct thread *p,
|
|
const char *filename, int line);
|
|
#define vn_lock(vp,flags,p) debug_vn_lock(vp,flags,p,__FILE__,__LINE__)
|
|
#endif
|
|
int vn_mkdir(char *path, int mode, enum uio_seg segflg, struct thread *td);
|
|
int vn_open(struct nameidata *ndp, int *flagp, int cmode);
|
|
int vn_open_cred(struct nameidata *ndp, int *flagp, int cmode,
|
|
struct ucred *cred);
|
|
void vn_pollevent(struct vnode *vp, int events);
|
|
void vn_pollgone(struct vnode *vp);
|
|
int vn_pollrecord(struct vnode *vp, struct thread *p, int events);
|
|
int vn_rdwr(enum uio_rw rw, struct vnode *vp, caddr_t base,
|
|
int len, off_t offset, enum uio_seg segflg, int ioflg,
|
|
struct ucred *cred, int *aresid, struct thread *td);
|
|
int vn_rdwr_inchunks(enum uio_rw rw, struct vnode *vp, caddr_t base,
|
|
int len, off_t offset, enum uio_seg segflg, int ioflg,
|
|
struct ucred *cred, int *aresid, struct thread *td);
|
|
int vn_stat(struct vnode *vp, struct stat *sb, struct thread *td);
|
|
int vn_start_write(struct vnode *vp, struct mount **mpp, int flags);
|
|
dev_t vn_todev(struct vnode *vp);
|
|
int vn_write_suspend_wait(struct vnode *vp, struct mount *mp,
|
|
int flags);
|
|
int vn_writechk(struct vnode *vp);
|
|
int vn_extattr_get(struct vnode *vp, int ioflg, int attrnamespace,
|
|
const char *attrname, int *buflen, char *buf, struct thread *td);
|
|
int vn_extattr_set(struct vnode *vp, int ioflg, int attrnamespace,
|
|
const char *attrname, int buflen, char *buf, struct thread *td);
|
|
int vn_extattr_rm(struct vnode *vp, int ioflg, int attrnamespace,
|
|
const char *attrname, struct thread *td);
|
|
int vfs_cache_lookup(struct vop_lookup_args *ap);
|
|
int vfs_object_create(struct vnode *vp, struct thread *td,
|
|
struct ucred *cred);
|
|
void vfs_timestamp(struct timespec *);
|
|
void vfs_write_resume(struct mount *mp);
|
|
void vfs_write_suspend(struct mount *mp);
|
|
int vop_stdbmap(struct vop_bmap_args *);
|
|
int vop_stdgetwritemount(struct vop_getwritemount_args *);
|
|
int vop_stdgetpages(struct vop_getpages_args *);
|
|
int vop_stdinactive(struct vop_inactive_args *);
|
|
int vop_stdislocked(struct vop_islocked_args *);
|
|
int vop_stdlock(struct vop_lock_args *);
|
|
int vop_stdputpages(struct vop_putpages_args *);
|
|
int vop_stdunlock(struct vop_unlock_args *);
|
|
int vop_noislocked(struct vop_islocked_args *);
|
|
int vop_nolock(struct vop_lock_args *);
|
|
int vop_nopoll(struct vop_poll_args *);
|
|
int vop_nounlock(struct vop_unlock_args *);
|
|
int vop_stdpathconf(struct vop_pathconf_args *);
|
|
int vop_stdpoll(struct vop_poll_args *);
|
|
int vop_revoke(struct vop_revoke_args *);
|
|
int vop_sharedlock(struct vop_lock_args *);
|
|
int vop_eopnotsupp(struct vop_generic_args *ap);
|
|
int vop_ebadf(struct vop_generic_args *ap);
|
|
int vop_einval(struct vop_generic_args *ap);
|
|
int vop_enotty(struct vop_generic_args *ap);
|
|
int vop_defaultop(struct vop_generic_args *ap);
|
|
int vop_null(struct vop_generic_args *ap);
|
|
int vop_panic(struct vop_generic_args *ap);
|
|
int vop_stdcreatevobject(struct vop_createvobject_args *ap);
|
|
int vop_stddestroyvobject(struct vop_destroyvobject_args *ap);
|
|
int vop_stdgetvobject(struct vop_getvobject_args *ap);
|
|
|
|
void vfree(struct vnode *);
|
|
void vput(struct vnode *vp);
|
|
void vrele(struct vnode *vp);
|
|
void vref(struct vnode *vp);
|
|
void vbusy(struct vnode *vp);
|
|
void v_addpollinfo(struct vnode *vp);
|
|
|
|
extern vop_t **default_vnodeop_p;
|
|
extern vop_t **spec_vnodeop_p;
|
|
extern vop_t **dead_vnodeop_p;
|
|
|
|
#endif /* _KERNEL */
|
|
|
|
#endif /* !_SYS_VNODE_H_ */
|