diff -uNr samba-3.0.28.org/source/Makefile.in samba-3.0.28/source/Makefile.in
--- samba-3.0.28.org/source/Makefile.in	2007-11-15 12:15:03.000000000 +0900
+++ samba-3.0.28/source/Makefile.in	2007-12-31 00:45:53.000000000 +0900
@@ -431,6 +431,7 @@
 VFS_GPFS_OBJ = modules/vfs_gpfs.o modules/gpfs.o modules/nfs4_acls.o
 VFS_NOTIFY_FAM_OBJ = modules/vfs_notify_fam.o
 VFS_READAHEAD_OBJ = modules/vfs_readahead.o
+VFS_NOFLOCK_OBJ = modules/vfs_noflock.o
 
 PLAINTEXT_AUTH_OBJ = auth/pampass.o auth/pass_check.o
 
@@ -1512,6 +1513,11 @@
 	@$(SHLD) $(LDSHFLAGS) -o $@ $(VFS_READAHEAD_OBJ) \
 		@SONAMEFLAG@`basename $@`
 
+bin/noflock.@SHLIBEXT@: $(VFS_NOFLOCK_OBJ)
+	@echo "Building plugin $@"
+	@$(SHLD) $(LDSHFLAGS) -o $@ $(VFS_NOFLOCK_OBJ) \
+		@SONAMEFLAG@`basename $@`
+
 #########################################################
 ## IdMap NSS plugins
 
diff -uNr samba-3.0.28.org/source/configure.in samba-3.0.28/source/configure.in
--- samba-3.0.28.org/source/configure.in	2007-11-21 12:58:01.000000000 +0900
+++ samba-3.0.28/source/configure.in	2007-12-31 00:46:13.000000000 +0900
@@ -603,7 +603,7 @@
 default_static_modules="pdb_smbpasswd pdb_tdbsam rpc_lsa rpc_samr rpc_reg rpc_shutdown rpc_lsa_ds rpc_wkssvc rpc_svcctl rpc_ntsvcs rpc_net rpc_netdfs rpc_srvsvc rpc_spoolss rpc_eventlog rpc_echo auth_sam auth_unix auth_winbind auth_server auth_domain auth_builtin vfs_default nss_info_template"
 
 dnl These are preferably build shared, and static if dlopen() is not available
-default_shared_modules="vfs_recycle vfs_audit vfs_extd_audit vfs_full_audit vfs_netatalk vfs_fake_perms vfs_default_quota vfs_readonly vfs_cap vfs_expand_msdfs vfs_shadow_copy charset_CP850 charset_CP437 auth_script vfs_readahead"
+default_shared_modules="vfs_recycle vfs_audit vfs_extd_audit vfs_full_audit vfs_netatalk vfs_fake_perms vfs_default_quota vfs_readonly vfs_cap vfs_expand_msdfs vfs_shadow_copy charset_CP850 charset_CP437 auth_script vfs_readahead vfs_noflock"
 
 if test "x$developer" = xyes; then
    default_static_modules="$default_static_modules rpc_rpcecho"
@@ -6099,6 +6099,7 @@
 SMB_MODULE(vfs_commit, \$(VFS_COMMIT_OBJ), "bin/commit.$SHLIBEXT", VFS)
 SMB_MODULE(vfs_gpfs, \$(VFS_GPFS_OBJ), "bin/gpfs.$SHLIBEXT", VFS)
 SMB_MODULE(vfs_readahead, \$(VFS_READAHEAD_OBJ), "bin/readahead.$SHLIBEXT", VFS)
+SMB_MODULE(vfs_noflock, \$(VFS_NOFLOCK_OBJ), "bin/noflock.$SHLIBEXT", VFS)
 
 SMB_SUBSYSTEM(VFS,smbd/vfs.o)
 
diff -uNr samba-3.0.28.org/source/include/config.h.in samba-3.0.28/source/include/config.h.in
--- samba-3.0.28.org/source/include/config.h.in	2007-12-11 01:04:29.000000000 +0900
+++ samba-3.0.28/source/include/config.h.in	2007-12-31 00:47:03.000000000 +0900
@@ -2849,5 +2849,8 @@
 /* Whether to build vfs_tru64acl as shared module */
 #undef vfs_tru64acl_init
 
+/* Whether to build vfs_noflock as shared module */
+#undef vfs_noflock_init
+
 /* Define to `unsigned short' if <sys/types.h> does not define. */
 #undef wchar_t
diff -uNr samba-3.0.28.org/source/modules/vfs_noflock.c samba-3.0.28/source/modules/vfs_noflock.c
--- samba-3.0.28.org/source/modules/vfs_noflock.c	1970-01-01 09:00:00.000000000 +0900
+++ samba-3.0.28/source/modules/vfs_noflock.c	2007-12-31 00:47:48.000000000 +0900
@@ -0,0 +1,18 @@
+/*
+   Copyright = public domain!
+*/
+#include "includes.h"
+static int noflock_kernel_flock(vfs_handle_struct *handle, files_struct *fsp, int fd, uint32 share_mode)
+{
+        return 0;
+}
+/* VFS operations structure */
+static vfs_op_tuple noflock_op_tuples[] = {
+  {SMB_VFS_OP(noflock_kernel_flock),    SMB_VFS_OP_KERNEL_FLOCK, SMB_VFS_LAYER_OPAQUE},
+  {SMB_VFS_OP(NULL),   		SMB_VFS_OP_NOOP,    SMB_VFS_LAYER_NOOP}
+};
+NTSTATUS vfs_noflock_init(void);
+NTSTATUS vfs_noflock_init(void)
+{
+  return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "noflock", noflock_op_tuples);
+}