svn commit: r268273 - head/sys/fs/nfsserver

[Rick Macklem]

Author: rmacklem
Date: Fri Jul  4 22:47:07 2014
New Revision: 268273
URL: http://svnweb.freebsd.org/changeset/base/268273

Log:
  The new NFSv3 server did not generate directory postop attributes for
  the reply to ReaddirPlus when the server failed within the loop
  that calls VFS_VGET(). This failure is most likely an error
  return from VFS_VGET() caused by a bogus d_fileno that was
  truncated to 32bits.
  This patch fixes the server so that it will return directory postop
  attributes for the failure. It does not fix the underlying issue caused
  by d_fileno being uint32_t when a file system like ZFS generates
  a fileno that is greater than 32bits.
  
  Reported by:	jpaetzel
  Reviewed by:	jpaetzel
  MFC after:	1 month

Modified:
  head/sys/fs/nfsserver/nfs_nfsdport.c

Modified: head/sys/fs/nfsserver/nfs_nfsdport.c
==============================================================================
--- head/sys/fs/nfsserver/nfs_nfsdport.c	Fri Jul  4 22:39:39 2014	(r268272)
+++ head/sys/fs/nfsserver/nfs_nfsdport.c	Fri Jul  4 22:47:07 2014	(r268273)
@@ -2264,9 +2264,11 @@ again:
 	if (dirlen > cnt || nd->nd_repstat) {
 		if (!nd->nd_repstat && entrycnt == 0)
 			nd->nd_repstat = NFSERR_TOOSMALL;
-		if (nd->nd_repstat)
+		if (nd->nd_repstat) {
 			newnfs_trimtrailing(nd, mb0, bpos0);
-		else
+			if (nd->nd_flag & ND_NFSV3)
+				nfsrv_postopattr(nd, getret, &at);
+		} else
 			newnfs_trimtrailing(nd, mb1, bpos1);
 		eofflag = 0;
 	} else if (cpos < cend)