zdtm: Add proc-self01 test

Check, that fdstore-keeped user ns files are opened
correct after restore.

Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>

test/zdtm/static/Makefile

@@ -116,6 +116,7 @@ TST_NOFILE	:=				\
 		pdeath_sig			\
 		file_fown			\
 		proc-self			\
+		proc-self01			\
 		eventfs00			\
 		signalfd00			\
 		inotify_irmap			\
@@ -506,6 +507,7 @@ socket-tcp4v6-closing:	CFLAGS += -D ZDTM_IPV4V6
 
 pty-console:		CFLAGS += -D ZDTM_DEV_CONSOLE
 userns02:		CFLAGS += -D USERNS02
+proc-self01:		override CFLAGS += -D PROC_SELF01
 
 shm-unaligned:		CFLAGS += -DZDTM_SHM_UNALIGNED
 

test/zdtm/static/proc-self.c

@@ -15,7 +15,11 @@
 const char *test_doc	= "Check for /proc/self/ns path restore";
 const char *test_author	= "Cyrill Gorcunov <gorcunov@openvz.org>";
 
+#ifdef PROC_SELF01
+const char nspath[] = "/proc/self/ns/user";
+#else
 const char nspath[] = "/proc/self/ns/net";
+#endif
 
 int read_fd_link(int lfd, char *buf, size_t size)
 {

test/zdtm/static/proc-self01.c

@@ -0,0 +1 @@
+proc-self.c