svn commit: r222291 - head/sys/fs/nfsclient

[Rick Macklem]

Author: rmacklem
Date: Wed May 25 21:17:53 2011
New Revision: 222291
URL: http://svn.freebsd.org/changeset/base/222291

Log:
  Add some missing mutex locking to the new NFS client.
  
  MFC after:	2 weeks

Modified:
  head/sys/fs/nfsclient/nfs_clvnops.c

Modified: head/sys/fs/nfsclient/nfs_clvnops.c
==============================================================================
--- head/sys/fs/nfsclient/nfs_clvnops.c	Wed May 25 21:04:11 2011	(r222290)
+++ head/sys/fs/nfsclient/nfs_clvnops.c	Wed May 25 21:17:53 2011	(r222291)
@@ -2470,10 +2470,12 @@ ncl_commit(struct vnode *vp, u_quad_t of
 	error = nfsrpc_commit(vp, offset, cnt, cred, td, verf, &nfsva,
 	    &attrflag, NULL);
 	if (!error) {
+		mtx_lock(&nmp->nm_mtx);
 		if (NFSBCMP((caddr_t)nmp->nm_verf, verf, NFSX_VERF)) {
 			NFSBCOPY(verf, (caddr_t)nmp->nm_verf, NFSX_VERF);
 			error = NFSERR_STALEWRITEVERF;
 		}
+		mtx_unlock(&nmp->nm_mtx);
 		if (!error && attrflag)
 			(void) nfscl_loadattrcache(&vp, &nfsva, NULL, NULL,
 			    0, 1);