Move vnode-to-file-handle translation from vfs_vptofh to vop_vptofh method.

This way we may support multiple structures in v_data vnode field within
one file system without using black magic.

Vnode-to-file-handle should be VOP in the first place, but was made VFS
operation to keep interface as compatible as possible with SUN's VFS.
BTW. Now Solaris also implements vnode-to-file-handle as VOP operation.

VFS_VPTOFH() was left for API backward compatibility, but is marked for
removal before 8.0-RELEASE.

Approved by:	mckusick
Discussed with:	many (on IRC)
Tested with:	ufs, msdosfs, cd9660, nullfs and zfs

1 files changed, 22 insertions, 0 deletions

diff --git a/sys/fs/ntfs/ntfs_vnops.c b/sys/fs/ntfs/ntfs_vnops.c
index 0b90b60..bc30044 100644
--- a/sys/fs/ntfs/ntfs_vnops.c
+++ b/sys/fs/ntfs/ntfs_vnops.c
@@ -80,6 +80,7 @@ static vop_readdir_t	ntfs_readdir;
 static vop_cachedlookup_t	ntfs_lookup;
 static vop_fsync_t	ntfs_fsync;
 static vop_pathconf_t	ntfs_pathconf;
+static vop_vptofh_t	ntfs_vptofh;
 
 int	ntfs_prtactive = 1;	/* 1 => print out reclaim of active vnodes */
 
@@ -731,6 +732,26 @@ ntfs_pathconf(ap)
 	/* NOTREACHED */
 }
 
+int
+ntfs_vptofh(ap)
+	struct vop_vptofh_args /* {
+		struct vnode *a_vp;
+		struct fid *a_fhp;
+	} */ *ap;
+{
+	register struct ntnode *ntp;
+	register struct ntfid *ntfhp;
+
+	ddprintf(("ntfs_fhtovp(): %p\n", ap->a_vp));
+
+	ntp = VTONT(ap->a_vp);
+	ntfhp = (struct ntfid *)ap->a_fhp;
+	ntfhp->ntfid_len = sizeof(struct ntfid);
+	ntfhp->ntfid_ino = ntp->i_number;
+	/* ntfhp->ntfid_gen = ntp->i_gen; */
+	return (0);
+}
+
 /*
  * Global vfs data structures
  */
@@ -752,4 +773,5 @@ struct vop_vector ntfs_vnodeops = {
 	.vop_reclaim =		ntfs_reclaim,
 	.vop_strategy =		ntfs_strategy,
 	.vop_write =		ntfs_write,
+	.vop_vptofh =		ntfs_vptofh,
 };