X-Git-Url: https://gitweb.dragonflybsd.org/dragonfly.git/blobdiff_plain/26fc83de6d3718da96da00d616394bcb0b774f21..aa21a6a5b63c983a247dc24e03bc413bcd5372b8:/sys/sys/vnode.h

diff --git a/sys/sys/vnode.h b/sys/sys/vnode.h
index 3f3ad959cf..bd3a241006 100644
--- a/sys/sys/vnode.h
+++ b/sys/sys/vnode.h
@@ -32,7 +32,7 @@
  *
  *	@(#)vnode.h	8.7 (Berkeley) 2/4/94
  * $FreeBSD: src/sys/sys/vnode.h,v 1.111.2.19 2002/12/29 18:19:53 dillon Exp $
- * $DragonFly: src/sys/sys/vnode.h,v 1.77 2007/08/28 01:04:31 dillon Exp $
+ * $DragonFly: src/sys/sys/vnode.h,v 1.83 2008/09/17 21:44:19 dillon Exp $
  */
 
 #ifndef _SYS_VNODE_H_
@@ -98,6 +98,14 @@
  */
 TAILQ_HEAD(buflists, buf);
 
+/*
+ * Struct for mount options to printable formats.
+ */
+struct mountctl_opt {
+        int             o_opt;
+        const char      *o_name;
+};
+
 /*
  * Range locks protect offset ranges in files and directories at a high
  * level, allowing the actual I/O to be broken down into smaller pieces.
@@ -178,6 +186,13 @@ vrange_lock_excl(struct vnode *vp, struct vrangelock *vr,
  * deal with clustered cache coherency issues and, more immediately, to
  * protect operations associated with the kernel-managed journaling module.
  *
+ * Certain fields within the vnode structure requires v_token to be held.
+ *
+ *	v_rbclean_tree
+ *	v_rbdirty_tree
+ *	v_rbhash_tree
+ *	v_pollinfo
+ *
  * NOTE: The vnode operations vector, v_ops, is a double-indirect that
  *	 typically points to &v_mount->mnt_vn_use_ops.  We use a double
  *	 pointer because mnt_vn_use_ops may change dynamically when e.g.
@@ -224,11 +239,11 @@ struct vnode {
 	int	v_clen;				/* length of current cluster */
 	struct vm_object *v_object;		/* Place to store VM object */
 	struct	lock v_lock;			/* file/dir ops lock */
+	struct	lwkt_token v_token;		/* structural access */
 	enum	vtagtype v_tag;			/* type of underlying data */
 	void	*v_data;			/* private data for fs */
 	struct namecache_list v_namecache;	/* associated nc entries */
 	struct	{
-		struct	lwkt_token vpi_token;	/* 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 */
@@ -259,37 +274,42 @@ struct vnode {
 /*
  * 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 VCTTYISOPEN	0x00010	/* controlling terminal tty is open */
-#define VCKPT		0x00020	/* checkpoint-restored vnode */
-#define VFSMID		0x00040	/* request FSMID update */
-#define VMAYHAVELOCKS	0x00080 /* there may be posix or flock locks on vp */
-/* open for business    0x00100 */
-/* open for business    0x00200 */
-/* open for business	0x00400 */
-/* open for business    0x00800 */
-#define VCACHED		0x01000	/* No active references but has cache value */
-#define	VOBJBUF		0x02000	/* Allocate buffers in VM object */
-#define	VINACTIVE	0x04000	/* The vnode is inactive (did VOP_INACTIVE) */
-#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	VRECLAIMED	0x40000	/* This vnode has been destroyed */
-#define	VFREE		0x80000	/* This vnode is on the freelist */
-/* open for business    0x100000 */
-#define	VONWORKLST	0x200000 /* On syncer work-list */
-#define VMOUNT		0x400000 /* Mount in progress */
-#define	VOBJDIRTY	0x800000 /* object might be dirty */
+#define	VROOT		0x00000001	/* root of its file system */
+#define	VTEXT		0x00000002	/* vnode is a pure text prototype */
+#define	VSYSTEM		0x00000004	/* vnode being used by kernel */
+#define	VISTTY		0x00000008	/* vnode represents a tty */
+#define VCTTYISOPEN	0x00000010	/* controlling terminal tty is open */
+#define VCKPT		0x00000020	/* checkpoint-restored vnode */
+#define VFSMID		0x00000040	/* request FSMID update */
+#define VMAYHAVELOCKS	0x00000080	/* maybe posix or flock locks on vp */
+#define VPFSROOT	0x00000100	/* may be a pseudo filesystem root */
+/* open for business    0x00000200 */
+/* open for business	0x00000400 */
+/* open for business    0x00000800 */
+#define VCACHED		0x00001000	/* No active references but has cache value */
+#define	VOBJBUF		0x00002000	/* Allocate buffers in VM object */
+#define	VINACTIVE	0x00004000	/* The vnode is inactive (did VOP_INACTIVE) */
+#define	VAGE		0x00008000	/* Insert vnode at head of free list */
+#define	VOLOCK		0x00010000	/* vnode is locked waiting for an object */
+#define	VOWANT		0x00020000	/* a process is waiting for VOLOCK */
+#define	VRECLAIMED	0x00040000	/* This vnode has been destroyed */
+#define	VFREE		0x00080000	/* This vnode is on the freelist */
+#define VNOTSEEKABLE	0x00100000	/* rd/wr ignores file offset */
+#define	VONWORKLST	0x00200000	/* On syncer work-list */
+#define VMOUNT		0x00400000	/* Mount in progress */
+#define	VOBJDIRTY	0x00800000	/* object might be dirty */
+
+#define VMP_READ	0x01000000	/* supports MPSAFE read */
+#define VMP_WRITE	0x02000000	/* supports MPSAFE write */
+#define VMP_GETATTR	0x04000000	/* supports MPSAFE getattr */
 
 /*
  * vmntvnodescan() flags
  */
-#define VMSC_GETVP	1
-#define VMSC_GETVX	2
+#define VMSC_GETVP	0x01
+#define VMSC_GETVX	0x02
 #define VMSC_NOWAIT	0x10
+#define VMSC_ONEPASS	0x20
 
 /*
  * Flags for ioflag. (high 16 bits used to ask for read-ahead and
@@ -304,7 +324,7 @@ struct vnode {
 #define	IO_INVAL	0x0040		/* invalidate after I/O */
 #define IO_ASYNC	0x0080		/* bawrite rather then bdwrite */
 #define	IO_DIRECT	0x0100		/* attempt to bypass buffer cache */
-#define	IO_NOWDRAIN	0x0200		/* do not block on wdrain */
+#define	IO_RECURSE	0x0200		/* possibly device-recursive (vn) */
 #define	IO_CORE		0x0400		/* I/O is part of core dump */
 
 #define	IO_SEQMAX	0x7F		/* seq heuristic max value */
@@ -313,13 +333,7 @@ struct vnode {
 /*
  * Modes.  Note that these V-modes must match file S_I*USR, SUID, SGID,
  * and SVTX flag bits.
- *
- * VCREATE, VDELETE, and VEXCL may only be used in naccess() calls.
  */
-#define VDELETE	040000		/* delete if the file/dir exists */
-#define VCREATE	020000		/* create if the file/dir does not exist */
-#define VEXCL	010000		/* error if the file/dir already exists */
-
 #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 */
@@ -357,7 +371,6 @@ extern	int		vttoif_tab[];
 #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 */
 
 #ifdef DIAGNOSTIC
 #define	VATTR_NULL(vap)	vattr_null(vap)
@@ -458,7 +471,6 @@ int	getnewvnode (enum vtagtype tag, struct mount *mp,
 int	getspecialvnode (enum vtagtype tag, struct mount *mp, 
 		    struct vop_ops **ops, struct vnode **vpp, int timo, 
 		    int lkflags);
-int	spec_vnoperate (struct vop_generic_args *);
 int	speedup_syncer (void);
 void	vattr_null (struct vattr *vap);
 int	vcount (struct vnode *vp);
@@ -475,8 +487,10 @@ int	vmntvnodescan(struct mount *mp, int flags,
 void	insmntque(struct vnode *vp, struct mount *mp);
 
 void	vclean_vxlocked (struct vnode *vp, int flags);
+void	vclean_unlocked (struct vnode *vp);
 void	vgone_vxlocked (struct vnode *vp);
 void	vupdatefsmid (struct vnode *vp);
+int	vrevoke (struct vnode *vp, struct ucred *cred);
 int	vinvalbuf (struct vnode *vp, int save, int slpflag, int slptimeo);
 int	vtruncbuf (struct vnode *vp, off_t length, int blksize);
 int	vfsync(struct vnode *vp, int waitfor, int passes,
@@ -485,6 +499,7 @@ int	vfsync(struct vnode *vp, int waitfor, int passes,
 int	vinitvmio(struct vnode *vp, off_t filesize);
 void	vprint (char *label, struct vnode *vp);
 int	vrecycle (struct vnode *vp);
+int	vmaxiosize (struct vnode *vp);
 void	vn_strategy(struct vnode *vp, struct bio *bio);
 int	vn_close (struct vnode *vp, int flags);
 int	vn_isdisk (struct vnode *vp, int *errp);
@@ -514,16 +529,21 @@ int	vn_rdwr_inchunks (enum uio_rw rw, struct vnode *vp, caddr_t base,
 int	vn_stat (struct vnode *vp, struct stat *sb, struct ucred *cred);
 cdev_t	vn_todev (struct vnode *vp);
 void	vfs_timestamp (struct timespec *);
+size_t	vfs_flagstostr(int flags, const struct mountctl_opt *optp, char *buf, size_t len, int *errorp);
+void	vn_mark_atime(struct vnode *vp, struct thread *td);
 int	vn_writechk (struct vnode *vp, struct nchandle *nch);
 int	ncp_writechk(struct nchandle *nch);
 int	vop_stdopen (struct vop_open_args *ap);
 int	vop_stdclose (struct vop_close_args *ap);
+int	vop_stdmountctl(struct vop_mountctl_args *ap);
 int	vop_stdgetpages(struct vop_getpages_args *ap);
 int	vop_stdputpages(struct vop_putpages_args *ap);
+int	vop_stdmarkatime(struct vop_markatime_args *ap);
+int	vop_stdnoread(struct vop_read_args *ap);
+int	vop_stdnowrite(struct vop_write_args *ap);
 int	vop_nopoll (struct vop_poll_args *ap);
 int	vop_stdpathconf (struct vop_pathconf_args *ap);
 int	vop_stdpoll (struct vop_poll_args *ap);
-int	vop_stdrevoke (struct vop_revoke_args *ap);
 int	vop_eopnotsupp (struct vop_generic_args *ap);
 int	vop_ebadf (struct vop_generic_args *ap);
 int	vop_einval (struct vop_generic_args *ap);
@@ -569,11 +589,9 @@ void	vn_syncer_add_to_worklist(struct vnode *, int);
 void	vnlru_proc_wait(void);
 
 extern	struct vop_ops default_vnode_vops;
-extern	struct vop_ops spec_vnode_vops;
 extern	struct vop_ops dead_vnode_vops;
 
 extern	struct vop_ops *default_vnode_vops_p;
-extern	struct vop_ops *spec_vnode_vops_p;
 extern	struct vop_ops *dead_vnode_vops_p;
 
 #endif	/* _KERNEL */