svn commit: r223441 - head/sys/fs/nfs

[Rick Macklem]

Author: rmacklem
Date: Wed Jun 22 21:10:12 2011
New Revision: 223441
URL: http://svn.freebsd.org/changeset/base/223441

Log:
  Plug an mbuf leak in the new NFS client that occurred when a
  server replied NFS3ERR_JUKEBOX/NFS4ERR_DELAY to an rpc.
  This affected both NFSv3 and NFSv4. Found during testing
  at the recent NFSv4 interoperability Bakeathon.
  
  MFC after:	2 weeks

Modified:
  head/sys/fs/nfs/nfs_commonkrpc.c

Modified: head/sys/fs/nfs/nfs_commonkrpc.c
==============================================================================
--- head/sys/fs/nfs/nfs_commonkrpc.c	Wed Jun 22 21:04:13 2011	(r223440)
+++ head/sys/fs/nfs/nfs_commonkrpc.c	Wed Jun 22 21:10:12 2011	(r223441)
@@ -733,6 +733,8 @@ tryagain:
 				while (NFSD_MONOSEC < waituntil)
 					(void) nfs_catnap(PZERO, 0, "nfstry");
 				trylater_delay *= 2;
+				m_freem(nd->nd_mrep);
+				nd->nd_mrep = NULL;
 				goto tryagain;
 			}