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From: Konstantin Belousov <kib@FreeBSD.org>
Date: Fri, 20 Mar 2009 11:00:39 +0000 (UTC)
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Subject: svn commit: r190143 - head/sys/kern
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Author: kib
Date: Fri Mar 20 11:00:39 2009
New Revision: 190143
URL: http://svn.freebsd.org/changeset/base/190143

Log:
  Do not forget to adjust buflen for the first resolution of the path
  from namecache.
  While there, compare pointers for equiality.
  
  Reviewed by:	marcus
  Tested by:	pho

Modified:
  head/sys/kern/vfs_cache.c

Modified: head/sys/kern/vfs_cache.c
==============================================================================
--- head/sys/kern/vfs_cache.c	Fri Mar 20 10:59:06 2009	(r190142)
+++ head/sys/kern/vfs_cache.c	Fri Mar 20 11:00:39 2009	(r190143)
@@ -956,7 +956,8 @@ vn_fullpath1(struct thread *td, struct v
 	if (vp->v_type != VDIR) {
 		ncp = TAILQ_FIRST(&vp->v_cache_dst);
 		if (ncp != NULL) {
-			for (i = ncp->nc_nlen - 1; i >= 0 && bp > buf; i--)
+			buflen -= ncp->nc_nlen;
+			for (i = ncp->nc_nlen - 1; i >= 0 && bp != buf; i--)
 				*--bp = ncp->nc_name[i];
 			if (bp == buf) {
 				numfullpathfail4++;