xnu-517.tar.gz

[apple/xnu.git] / bsd / sys / vnode.h

diff --git a/bsd/sys/vnode.h b/bsd/sys/vnode.h
index 0ddf130b7b9d37b39e85141a29770ddcd9da5882..a5ad2a32963f6238ba9c9096f3a0adeff1031756 100644 (file)
--- a/bsd/sys/vnode.h
+++ b/bsd/sys/vnode.h
@@ -143,11 +143,12 @@ struct vnode {
                struct socket   *vu_socket;     /* unix ipc (VSOCK) */
                struct specinfo *vu_specinfo;   /* device (VCHR, VBLK) */
                struct fifoinfo *vu_fifoinfo;   /* fifo (VFIFO) */
+               char            *vu_name;       /* name (only for VREG) */
        } v_un;
        struct ubc_info *v_ubcinfo;     /* valid for (VREG) */
        struct  nqlease *v_lease;               /* Soft reference to lease */
-       daddr_t v_lastw;                        /* last write (write cluster) */
-       daddr_t v_cstart;                       /* start block of cluster */
+        void   *v_scmap;                       /* pointer to sparse cluster map */
+        int    v_scdirty;                      /* number of dirty pages in the sparse cluster map */
        daddr_t v_ciosiz;                       /* real size of I/O for cluster */
        int     v_clen;                         /* length of current cluster */
        int     v_ralen;                        /* Read-ahead length */
@@ -169,6 +170,11 @@ struct vnode {
 #define        v_specinfo      v_un.vu_specinfo
 #define        v_fifoinfo      v_un.vu_fifoinfo
 
+// NOTE: Do not use these macros.  They are for vfs internal use only.
+#define VNAME(vp)   ((char *)((vp)->v_type == VREG ? (vp)->v_un.vu_name : (vp)->v_scmap))
+#define VPARENT(vp) ((struct vnode *)((vp)->v_type == VREG ? (vp)->v_un1.v_cl.v_pad : (vp)->v_scdirty))
+
+
 /*
  * Vnode flags.
  */
@@ -198,7 +204,9 @@ struct vnode {
 #define        VTHROTTLED      0x400000        /* writes or pageouts have been throttled */
                /* wakeup tasks waiting when count falls below threshold */
 #define        VNOFLUSH        0x800000        /* don't vflush() if SKIPSYSTEM */
-
+#define VDELETED       0x1000000        /* this vnode is being deleted */
+#define VFULLFSYNC     0x2000000       /* ask the drive to write the data to the media */
+#define VHASBEENPAGED  0x4000000        /* vnode has been recently paged to */
 
 /*
  * Vnode attributes.  A field value of VNOVAL represents a field whose value
@@ -505,6 +513,10 @@ int        vn_close __P((struct vnode *vp,
            int flags, struct ucred *cred, struct proc *p));
 int    vn_lock __P((struct vnode *vp, int flags, struct proc *p));
 int    vn_open __P((struct nameidata *ndp, int fmode, int cmode));
+#ifndef __APPLE_API_PRIVATE
+__private_extern__ int
+       vn_open_modflags __P((struct nameidata *ndp, int *fmode, int cmode));
+#endif /* __APPLE_API_PRIVATE */
 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));
@@ -520,7 +532,7 @@ void        vrele __P((struct vnode *vp));
 int    vaccess __P((mode_t file_mode, uid_t uid, gid_t gid,
            mode_t acc_mode, struct ucred *cred));
 int    getvnode __P((struct proc *p, int fd, struct file **fpp));
-#endif __APPLE_API_EVOLVING
+#endif /* __APPLE_API_EVOLVING */
 
 #endif /* KERNEL */