| /* |
| * Copyright (c) 1989, 1993 |
| * The Regents of the University of California. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. All advertising materials mentioning features or use of this software |
| * must display the following acknowledgement: |
| * This product includes software developed by the University of |
| * California, Berkeley and its contributors. |
| * 4. Neither the name of the University nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * @(#)vnode.h 8.7 (Berkeley) 2/4/94 |
| * $FreeBSD: src/sys/sys/vnode.h,v 1.111.2.18 2001/12/25 01:44:44 dillon Exp $ |
| */ |
| |
| #ifndef _SYS_VNODE_H_ |
| #define _SYS_VNODE_H_ |
| |
| #include <sys/queue.h> |
| #include <sys/lock.h> |
| #include <sys/select.h> |
| #include <sys/uio.h> |
| #include <sys/acl.h> |
| |
| #include <machine/lock.h> |
| |
| /* |
| * The vnode is the focus of all file activity in UNIX. There is a |
| * unique vnode allocated for each active file, each current directory, |
| * each mounted-on file, text file, and the root. |
| */ |
| |
| /* |
| * Vnode types. VNON means no type. |
| */ |
| enum vtype { VNON, VREG, VDIR, VBLK, VCHR, VLNK, VSOCK, VFIFO, VBAD }; |
| |
| /* |
| * Vnode tag types. |
| * These are for the benefit of external programs only (e.g., pstat) |
| * and should NEVER be inspected by the kernel. |
| */ |
| enum vtagtype { |
| VT_NON, VT_UFS, VT_NFS, VT_MFS, VT_PC, VT_LFS, VT_LOFS, VT_FDESC, |
| VT_PORTAL, VT_NULL, VT_UMAP, VT_KERNFS, VT_PROCFS, VT_AFS, VT_ISOFS, |
| VT_UNION, VT_MSDOSFS, VT_TFS, VT_VFS, VT_CODA, VT_NTFS, |
| VT_HPFS, VT_NWFS, VT_SMBFS, VT_SYSCTLFS |
| }; |
| |
| /* |
| * Each underlying filesystem allocates its own private area and hangs |
| * it from v_data. If non-null, this area is freed in getnewvnode(). |
| */ |
| TAILQ_HEAD(buflists, buf); |
| |
| typedef int vop_t __P((void *)); |
| struct namecache; |
| |
| /* |
| * Reading or writing any of these items requires holding the appropriate lock. |
| * v_freelist is locked by the global vnode_free_list simple lock. |
| * v_mntvnodes is locked by the global mntvnodes simple lock. |
| * v_flag, v_usecount, v_holdcount and v_writecount are |
| * locked by the v_interlock simple lock. |
| * v_pollinfo is locked by the lock contained inside it. |
| */ |
| struct vnode { |
| u_long v_flag; /* vnode flags (see below) */ |
| int v_usecount; /* reference count of users */ |
| int v_writecount; /* reference count of writers */ |
| int v_holdcnt; /* page & buffer references */ |
| u_long v_id; /* capability identifier */ |
| struct mount *v_mount; /* ptr to vfs we are in */ |
| vop_t **v_op; /* vnode operations vector */ |
| TAILQ_ENTRY(vnode) v_freelist; /* vnode freelist */ |
| TAILQ_ENTRY(vnode) v_nmntvnodes; /* vnodes for mount point */ |
| struct buflists v_cleanblkhd; /* clean blocklist head */ |
| struct buflists v_dirtyblkhd; /* dirty blocklist head */ |
| LIST_ENTRY(vnode) v_synclist; /* vnodes with dirty buffers */ |
| long v_numoutput; /* num of writes in progress */ |
| enum vtype v_type; /* vnode type */ |
| union { |
| struct mount *vu_mountedhere;/* ptr to mounted vfs (VDIR) */ |
| struct socket *vu_socket; /* unix ipc (VSOCK) */ |
| struct { |
| struct specinfo *vu_specinfo; /* device (VCHR, VBLK) */ |
| SLIST_ENTRY(vnode) vu_specnext; |
| } vu_spec; |
| struct fifoinfo *vu_fifoinfo; /* fifo (VFIFO) */ |
| } v_un; |
| struct nqlease *v_lease; /* Soft reference to lease */ |
| daddr_t v_lastw; /* last write (write cluster) */ |
| daddr_t v_cstart; /* start block of cluster */ |
| daddr_t v_lasta; /* last allocation */ |
| int v_clen; /* length of current cluster */ |
| struct vm_object *v_object; /* Place to store VM object */ |
| struct simplelock v_interlock; /* lock on usecount and flag */ |
| struct lock *v_vnlock; /* used for non-locking fs's */ |
| enum vtagtype v_tag; /* type of underlying data */ |
| void *v_data; /* private data for fs */ |
| LIST_HEAD(, namecache) v_cache_src; /* Cache entries from us */ |
| TAILQ_HEAD(, namecache) v_cache_dst; /* Cache entries to us */ |
| struct vnode *v_dd; /* .. vnode */ |
| u_long v_ddid; /* .. capability identifier */ |
| struct { |
| struct simplelock vpi_lock; /* lock to protect below */ |
| struct selinfo vpi_selinfo; /* identity of poller(s) */ |
| short vpi_events; /* what they are looking for */ |
| short vpi_revents; /* what has happened */ |
| } v_pollinfo; |
| struct proc *v_vxproc; /* proc owning VXLOCK */ |
| #ifdef DEBUG_LOCKS |
| const char *filename; /* Source file doing locking */ |
| int line; /* Line number doing locking */ |
| #endif |
| }; |
| #define v_mountedhere v_un.vu_mountedhere |
| #define v_socket v_un.vu_socket |
| #define v_rdev v_un.vu_spec.vu_specinfo |
| #define v_specnext v_un.vu_spec.vu_specnext |
| #define v_fifoinfo v_un.vu_fifoinfo |
| |
| #define VN_POLLEVENT(vp, events) \ |
| do { \ |
| if ((vp)->v_pollinfo.vpi_events & (events)) \ |
| vn_pollevent((vp), (events)); \ |
| } while (0) |
| |
| /* |
| * Vnode flags. |
| */ |
| #define VROOT 0x00001 /* root of its file system */ |
| #define VTEXT 0x00002 /* vnode is a pure text prototype */ |
| #define VSYSTEM 0x00004 /* vnode being used by kernel */ |
| #define VISTTY 0x00008 /* vnode represents a tty */ |
| #define VXLOCK 0x00100 /* vnode is locked to change underlying type */ |
| #define VXWANT 0x00200 /* process is waiting for vnode */ |
| #define VBWAIT 0x00400 /* waiting for output to complete */ |
| /* open for business 0x00800 */ |
| /* open for business 0x01000 */ |
| #define VOBJBUF 0x02000 /* Allocate buffers in VM object */ |
| /* open for business 0x04000 */ |
| #define VAGE 0x08000 /* Insert vnode at head of free list */ |
| #define VOLOCK 0x10000 /* vnode is locked waiting for an object */ |
| #define VOWANT 0x20000 /* a process is waiting for VOLOCK */ |
| #define VDOOMED 0x40000 /* This vnode is being recycled */ |
| #define VFREE 0x80000 /* This vnode is on the freelist */ |
| #define VONWORKLST 0x200000 /* On syncer work-list */ |
| #define VMOUNT 0x400000 /* Mount in progress */ |
| #define VOBJDIRTY 0x800000 /* object might be dirty */ |
| |
| /* |
| * Vnode attributes. A field value of VNOVAL represents a field whose value |
| * is unavailable (getattr) or which is not to be changed (setattr). |
| */ |
| struct vattr { |
| enum vtype va_type; /* vnode type (for create) */ |
| u_short va_mode; /* files access mode and type */ |
| short va_nlink; /* number of references to file */ |
| uid_t va_uid; /* owner user id */ |
| gid_t va_gid; /* owner group id */ |
| udev_t va_fsid; /* file system id */ |
| long va_fileid; /* file id */ |
| u_quad_t va_size; /* file size in bytes */ |
| long va_blocksize; /* blocksize preferred for i/o */ |
| struct timespec va_atime; /* time of last access */ |
| struct timespec va_mtime; /* time of last modification */ |
| struct timespec va_ctime; /* time file changed */ |
| u_long va_gen; /* generation number of file */ |
| u_long va_flags; /* flags defined for file */ |
| udev_t va_rdev; /* device the special file represents */ |
| u_quad_t va_bytes; /* bytes of disk space held by file */ |
| u_quad_t va_filerev; /* file modification number */ |
| u_int va_vaflags; /* operations flags, see below */ |
| long va_spare; /* remain quad aligned */ |
| }; |
| |
| /* |
| * Flags for va_vaflags. |
| */ |
| #define VA_UTIMES_NULL 0x01 /* utimes argument was NULL */ |
| #define VA_EXCLUSIVE 0x02 /* exclusive create request */ |
| |
| /* |
| * Flags for ioflag. (high 16 bits used to ask for read-ahead and |
| * help with write clustering) |
| */ |
| #define IO_UNIT 0x01 /* do I/O as atomic unit */ |
| #define IO_APPEND 0x02 /* append write to end */ |
| #define IO_SYNC 0x04 /* do I/O synchronously */ |
| #define IO_NODELOCKED 0x08 /* underlying node already locked */ |
| #define IO_NDELAY 0x10 /* FNDELAY flag set in file table */ |
| #define IO_VMIO 0x20 /* data already in VMIO space */ |
| #define IO_INVAL 0x40 /* invalidate after I/O */ |
| #define IO_ASYNC 0x80 /* bawrite rather then bdwrite */ |
| #define IO_DIRECT 0x100 /* attempt to bypass buffer cache */ |
| #define IO_NOWDRAIN 0x200 /* do not block on wdrain */ |
| |
| /* |
| * Modes. Some values same as Ixxx entries from inode.h for now. |
| */ |
| #define VSUID 04000 /* set user id on execution */ |
| #define VSGID 02000 /* set group id on execution */ |
| #define VSVTX 01000 /* save swapped text even after use */ |
| #define VREAD 00400 /* read, write, execute permissions */ |
| #define VWRITE 00200 |
| #define VEXEC 00100 |
| |
| /* |
| * Token indicating no attribute value yet assigned. |
| */ |
| #define VNOVAL (-1) |
| |
| /* |
| * LK_TIMELOCK timeout for vnode locks (used mainly by the pageout daemon) |
| */ |
| #define VLKTIMEOUT (hz / 20 + 1) |
| |
| #ifdef _KERNEL |
| |
| #ifdef MALLOC_DECLARE |
| MALLOC_DECLARE(M_VNODE); |
| #endif |
| |
| /* |
| * Convert between vnode types and inode formats (since POSIX.1 |
| * defines mode word of stat structure in terms of inode formats). |
| */ |
| extern enum vtype iftovt_tab[]; |
| extern int vttoif_tab[]; |
| #define IFTOVT(mode) (iftovt_tab[((mode) & S_IFMT) >> 12]) |
| #define VTTOIF(indx) (vttoif_tab[(int)(indx)]) |
| #define MAKEIMODE(indx, mode) (int)(VTTOIF(indx) | (mode)) |
| |
| /* |
| * Flags to various vnode functions. |
| */ |
| #define SKIPSYSTEM 0x0001 /* vflush: skip vnodes marked VSYSTEM */ |
| #define FORCECLOSE 0x0002 /* vflush: force file closure */ |
| #define WRITECLOSE 0x0004 /* vflush: only close writable files */ |
| #define DOCLOSE 0x0008 /* vclean: close active files */ |
| #define V_SAVE 0x0001 /* vinvalbuf: sync file first */ |
| #define REVOKEALL 0x0001 /* vop_revoke: revoke all aliases */ |
| |
| #define VREF(vp) vref(vp) |
| |
| |
| #ifdef DIAGNOSTIC |
| #define VATTR_NULL(vap) vattr_null(vap) |
| #else |
| #define VATTR_NULL(vap) (*(vap) = va_null) /* initialize a vattr */ |
| #endif /* DIAGNOSTIC */ |
| |
| #define NULLVP ((struct vnode *)NULL) |
| |
| #define VNODEOP_SET(f) \ |
| C_SYSINIT(f##init, SI_SUB_VFS, SI_ORDER_SECOND, vfs_add_vnodeops, &f); \ |
| C_SYSUNINIT(f##uninit, SI_SUB_VFS, SI_ORDER_SECOND, vfs_rm_vnodeops, &f); |
| |
| /* |
| * Global vnode data. |
| */ |
| extern struct vnode *rootvnode; /* root (i.e. "/") vnode */ |
| extern int desiredvnodes; /* number of vnodes desired */ |
| extern time_t syncdelay; /* max time to delay syncing data */ |
| extern time_t filedelay; /* time to delay syncing files */ |
| extern time_t dirdelay; /* time to delay syncing directories */ |
| extern time_t metadelay; /* time to delay syncing metadata */ |
| extern struct vm_zone *namei_zone; |
| extern int prtactive; /* nonzero to call vprint() */ |
| extern struct vattr va_null; /* predefined null vattr structure */ |
| extern int vfs_ioopt; |
| |
| /* |
| * Macro/function to check for client cache inconsistency w.r.t. leasing. |
| */ |
| #define LEASE_READ 0x1 /* Check lease for readers */ |
| #define LEASE_WRITE 0x2 /* Check lease for modifiers */ |
| |
| |
| extern void (*lease_updatetime) __P((int deltat)); |
| |
| #define VSHOULDFREE(vp) \ |
| (!((vp)->v_flag & (VFREE|VDOOMED)) && \ |
| !(vp)->v_holdcnt && !(vp)->v_usecount && \ |
| (!(vp)->v_object || \ |
| !((vp)->v_object->ref_count || (vp)->v_object->resident_page_count))) |
| |
| #define VMIGHTFREE(vp) \ |
| (!((vp)->v_flag & (VFREE|VDOOMED|VXLOCK)) && \ |
| LIST_EMPTY(&(vp)->v_cache_src) && !(vp)->v_usecount) |
| |
| #define VSHOULDBUSY(vp) \ |
| (((vp)->v_flag & VFREE) && \ |
| ((vp)->v_holdcnt || (vp)->v_usecount)) |
| |
| #define VI_LOCK(vp) simple_lock(&(vp)->v_interlock) |
| #define VI_TRYLOCK(vp) simple_lock_try(&(vp)->v_interlock) |
| #define VI_UNLOCK(vp) simple_unlock(&(vp)->v_interlock) |
| |
| #endif /* _KERNEL */ |
| |
| |
| /* |
| * Mods for extensibility. |
| */ |
| |
| /* |
| * Flags for vdesc_flags: |
| */ |
| #define VDESC_MAX_VPS 16 |
| /* Low order 16 flag bits are reserved for willrele flags for vp arguments. */ |
| #define VDESC_VP0_WILLRELE 0x0001 |
| #define VDESC_VP1_WILLRELE 0x0002 |
| #define VDESC_VP2_WILLRELE 0x0004 |
| #define VDESC_VP3_WILLRELE 0x0008 |
| #define VDESC_NOMAP_VPP 0x0100 |
| #define VDESC_VPP_WILLRELE 0x0200 |
| |
| /* |
| * VDESC_NO_OFFSET is used to identify the end of the offset list |
| * and in places where no such field exists. |
| */ |
| #define VDESC_NO_OFFSET -1 |
| |
| /* |
| * This structure describes the vnode operation taking place. |
| */ |
| struct vnodeop_desc { |
| int vdesc_offset; /* offset in vector--first for speed */ |
| char *vdesc_name; /* a readable name for debugging */ |
| int vdesc_flags; /* VDESC_* flags */ |
| |
| /* |
| * These ops are used by bypass routines to map and locate arguments. |
| * Creds and procs are not needed in bypass routines, but sometimes |
| * they are useful to (for example) transport layers. |
| * Nameidata is useful because it has a cred in it. |
| */ |
| int *vdesc_vp_offsets; /* list ended by VDESC_NO_OFFSET */ |
| int vdesc_vpp_offset; /* return vpp location */ |
| int vdesc_cred_offset; /* cred location, if any */ |
| int vdesc_proc_offset; /* proc location, if any */ |
| int vdesc_componentname_offset; /* if any */ |
| /* |
| * Finally, we've got a list of private data (about each operation) |
| * for each transport layer. (Support to manage this list is not |
| * yet part of BSD.) |
| */ |
| caddr_t *vdesc_transports; |
| }; |
| |
| #ifdef _KERNEL |
| /* |
| * A list of all the operation descs. |
| */ |
| extern struct vnodeop_desc *vnodeop_descs[]; |
| |
| /* |
| * Interlock for scanning list of vnodes attached to a mountpoint |
| */ |
| extern struct simplelock mntvnode_slock; |
| |
| /* |
| * This macro is very helpful in defining those offsets in the vdesc struct. |
| * |
| * This is stolen from X11R4. I ignored all the fancy stuff for |
| * Crays, so if you decide to port this to such a serious machine, |
| * you might want to consult Intrinsic.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 { |
| struct vnodeop_desc *opve_op; /* which operation this is */ |
| vop_t *opve_impl; /* code implementing this operation */ |
| }; |
| struct vnodeopv_desc { |
| /* ptr to the ptr to the vector where op should go */ |
| vop_t ***opv_desc_vector_p; |
| struct vnodeopv_entry_desc *opv_desc_ops; /* null terminated list */ |
| }; |
| |
| /* |
| * 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 */ |
| }; |
| |
| |
| #ifdef DEBUG_VFS_LOCKS |
| /* |
| * Macros to aid in tracing VFS locking problems. Not totally |
| * reliable since if the process sleeps between changing the lock |
| * state and checking it with the assert, some other process could |
| * change the state. They are good enough for debugging a single |
| * 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_MFS \ |
| || (vp)->v_tag == VT_NFS \ |
| || (vp)->v_tag == VT_LFS \ |
| || (vp)->v_tag == VT_ISOFS \ |
| || (vp)->v_tag == VT_MSDOSFS) |
| |
| #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, curproc); \ |
| 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, curproc) != 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, curproc) != LK_EXCLOTHER) \ |
| panic("%s: %p is not exclusive locked by another proc", \ |
| 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 proc; |
| struct stat; |
| struct nstat; |
| struct ucred; |
| struct uio; |
| struct vattr; |
| struct vnode; |
| struct vop_bwrite_args; |
| |
| extern int (*lease_check_hook) __P((struct vop_lease_args *)); |
| |
| void addalias __P((struct vnode *vp, dev_t nvp_rdev)); |
| void addaliasu __P((struct vnode *vp, udev_t nvp_rdev)); |
| int bdevvp __P((dev_t dev, struct vnode **vpp)); |
| /* cache_* may belong in namei.h. */ |
| void cache_enter __P((struct vnode *dvp, struct vnode *vp, |
| struct componentname *cnp)); |
| int cache_lookup __P((struct vnode *dvp, struct vnode **vpp, |
| struct componentname *cnp)); |
| void cache_purge __P((struct vnode *vp)); |
| void cache_purgevfs __P((struct mount *mp)); |
| int cache_leaf_test __P((struct vnode *vp)); |
| void cvtstat __P((struct stat *st, struct ostat *ost)); |
| void cvtnstat __P((struct stat *sb, struct nstat *nsb)); |
| int getnewvnode __P((enum vtagtype tag, |
| struct mount *mp, vop_t **vops, struct vnode **vpp)); |
| int lease_check __P((struct vop_lease_args *ap)); |
| int spec_vnoperate __P((struct vop_generic_args *)); |
| int speedup_syncer __P((void)); |
| int textvp_fullpath __P((struct proc *p, char **retbuf, char **retfreebuf)); |
| void vattr_null __P((struct vattr *vap)); |
| int vcount __P((struct vnode *vp)); |
| void vdrop __P((struct vnode *)); |
| int vfinddev __P((dev_t dev, enum vtype type, struct vnode **vpp)); |
| void vfs_add_vnodeops __P((const void *)); |
| void vfs_rm_vnodeops __P((const void *)); |
| int vflush __P((struct mount *mp, int rootrefs, int flags)); |
| int vget __P((struct vnode *vp, int lockflag, struct proc *p)); |
| void vgone __P((struct vnode *vp)); |
| void vgonel __P((struct vnode *vp, struct proc *p)); |
| void vhold __P((struct vnode *)); |
| int vinvalbuf __P((struct vnode *vp, int save, struct ucred *cred, |
| |
| struct proc *p, int slpflag, int slptimeo)); |
| int vtruncbuf __P((struct vnode *vp, struct ucred *cred, struct proc *p, |
| off_t length, int blksize)); |
| void vprint __P((char *label, struct vnode *vp)); |
| int vrecycle __P((struct vnode *vp, struct simplelock *inter_lkp, |
| struct proc *p)); |
| int vn_close __P((struct vnode *vp, |
| int flags, struct ucred *cred, struct proc *p)); |
| int vn_isdisk __P((struct vnode *vp, int *errp)); |
| int vn_lock __P((struct vnode *vp, int flags, struct proc *p)); |
| #ifdef DEBUG_LOCKS |
| int debug_vn_lock __P((struct vnode *vp, int flags, struct proc *p, |
| const char *filename, int line)); |
| #define vn_lock(vp,flags,p) debug_vn_lock(vp,flags,p,__FILE__,__LINE__) |
| #endif |
| int vn_open __P((struct nameidata *ndp, int fmode, int cmode)); |
| void vn_pollevent __P((struct vnode *vp, int events)); |
| void vn_pollgone __P((struct vnode *vp)); |
| int vn_pollrecord __P((struct vnode *vp, struct proc *p, int events)); |
| int vn_rdwr __P((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 proc *p)); |
| int vn_rdwr_inchunks __P((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 proc *p)); |
| int vn_stat __P((struct vnode *vp, struct stat *sb, struct proc *p)); |
| dev_t vn_todev __P((struct vnode *vp)); |
| int vfs_cache_lookup __P((struct vop_lookup_args *ap)); |
| int vfs_object_create __P((struct vnode *vp, struct proc *p, |
| struct ucred *cred)); |
| void vfs_timestamp __P((struct timespec *)); |
| int vn_writechk __P((struct vnode *vp)); |
| int vop_stdbwrite __P((struct vop_bwrite_args *ap)); |
| int vop_stdislocked __P((struct vop_islocked_args *)); |
| int vop_stdlock __P((struct vop_lock_args *)); |
| int vop_stdunlock __P((struct vop_unlock_args *)); |
| int vop_noislocked __P((struct vop_islocked_args *)); |
| int vop_nolock __P((struct vop_lock_args *)); |
| int vop_nopoll __P((struct vop_poll_args *)); |
| int vop_nounlock __P((struct vop_unlock_args *)); |
| int vop_stdpathconf __P((struct vop_pathconf_args *)); |
| int vop_stdpoll __P((struct vop_poll_args *)); |
| int vop_revoke __P((struct vop_revoke_args *)); |
| int vop_sharedlock __P((struct vop_lock_args *)); |
| int vop_eopnotsupp __P((struct vop_generic_args *ap)); |
| int vop_ebadf __P((struct vop_generic_args *ap)); |
| int vop_einval __P((struct vop_generic_args *ap)); |
| int vop_enotty __P((struct vop_generic_args *ap)); |
| int vop_defaultop __P((struct vop_generic_args *ap)); |
| int vop_null __P((struct vop_generic_args *ap)); |
| int vop_panic __P((struct vop_generic_args *ap)); |
| int vop_stdcreatevobject __P((struct vop_createvobject_args *ap)); |
| int vop_stddestroyvobject __P((struct vop_destroyvobject_args *ap)); |
| int vop_stdgetvobject __P((struct vop_getvobject_args *ap)); |
| |
| void vfree __P((struct vnode *vp)); |
| void vput __P((struct vnode *vp)); |
| void vrele __P((struct vnode *vp)); |
| void vref __P((struct vnode *vp)); |
| void vbusy __P((struct vnode *vp)); |
| |
| extern vop_t **default_vnodeop_p; |
| extern vop_t **spec_vnodeop_p; |
| |
| #endif /* _KERNEL */ |
| |
| #endif /* !_SYS_VNODE_H_ */ |