Simplify the handling of VCHR and VBLK vnodes using the new dev_t:

        Make the alias list a SLIST.

        Drop the "fast recycling" optimization of vnodes (including
        the returning of a prexisting but stale vnode from checkalias).
        It doesn't buy us anything now that we don't hardlimit
        vnodes anymore.

        Rename checkalias2() and checkalias() to addalias() and
        addaliasu() - which takes dev_t and udev_t arg respectively.

        Make the revoke syscalls use vcount() instead of VALIASED.

        Remove VALIASED flag, we don't need it now and it is faster
        to traverse the much shorter lists than to maintain the
        flag.

        vfs_mountedon() can check the dev_t directly, all the vnodes
        point to the same one.

Print the devicename in specfs/vprint().

Remove a couple of stale LFS vnode flags.

Remove unimplemented/unused LK_DRAINED;

1 files changed, 2 insertions, 21 deletions

diff --git a/sys/nfs/nfs_common.c b/sys/nfs/nfs_common.c
index 08108a6..9ffb490 100644
--- a/sys/nfs/nfs_common.c
+++ b/sys/nfs/nfs_common.c
@@ -34,7 +34,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)nfs_subs.c  8.8 (Berkeley) 5/22/95
- * $Id: nfs_subs.c,v 1.79 1999/07/17 18:43:47 phk Exp $
+ * $Id: nfs_subs.c,v 1.80 1999/08/08 18:42:55 phk Exp $
  */
 
 /*
@@ -1311,26 +1311,7 @@ nfs_loadattrcache(vpp, mdp, dposp, vaper)
 		}
 		if (vp->v_type == VCHR || vp->v_type == VBLK) {
 			vp->v_op = spec_nfsv2nodeop_p;
-			nvp = checkalias(vp, rdev, vp->v_mount);
-			if (nvp) {
-				/*
-				 * Discard unneeded vnode, but save its nfsnode.
-				 * Since the nfsnode does not have a lock, its
-				 * vnode lock has to be carried over.
-				 */
-				nvp->v_vnlock = vp->v_vnlock;
-				vp->v_vnlock = NULL;
-				nvp->v_data = vp->v_data;
-				vp->v_data = NULL;
-				vp->v_op = spec_vnodeop_p;
-				vrele(vp);
-				vgone(vp);
-				/*
-				 * Reinitialize aliased node.
-				 */
-				np->n_vnode = nvp;
-				*vpp = vp = nvp;
-			}
+			addaliasu(vp, rdev);
 		}
 		np->n_mtime = mtime.tv_sec;
 	}