kdat: Merge dump and restore kerndats

Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>

criu/cr-restore.c

@@ -2167,7 +2167,7 @@ int cr_restore_tasks(void)
 	if (init_stats(RESTORE_STATS))
 		goto err;
 
-	if (kerndat_init_rst())
+	if (kerndat_init())
 		goto err;
 
 	timing_start(TIME_RESTORE);

criu/include/kerndat.h

@@ -11,7 +11,6 @@ struct stat;
  */
 
 extern int kerndat_init(void);
-extern int kerndat_init_rst(void);
 extern int kerndat_get_dirty_track(void);
 extern int kerndat_fdinfo_has_lock(void);
 extern int kerndat_loginuid(void);

criu/kerndat.c

@@ -589,40 +589,8 @@ int kerndat_init(void)
 		ret = kerndat_tcp_repair();
 	if (!ret)
 		ret = kerndat_compat_restore();
-
-	kerndat_lsm();
-	kerndat_mmap_min_addr();
-
-	return ret;
-}
-
-int kerndat_init_rst(void)
-{
-	int ret;
-
-	/*
-	 * Read TCP sysctls before anything else,
-	 * since the limits we're interested in are
-	 * not available inside namespaces.
-	 */
-
-	ret = check_pagemap();
-	if (!ret)
-		ret = get_last_cap();
 	if (!ret)
 		ret = kerndat_has_memfd_create();
-	if (!ret)
-		ret = get_task_size();
-	if (!ret)
-		ret = get_ipv6();
-	if (!ret)
-		ret = kerndat_loginuid();
-	if (!ret)
-		ret = kerndat_iptables_has_xtlocks();
-	if (!ret)
-		ret = kerndat_tcp_repair();
-	if (!ret)
-		ret = kerndat_compat_restore();
 
 	kerndat_lsm();
 	kerndat_mmap_min_addr();

criu/lsm.c

@@ -111,7 +111,7 @@ void kerndat_lsm(void)
 {
 	/* On restore, if someone passes --lsm-profile, we might end up doing
 	 * detection twice, once during flag parsing and once for
-	 * kerndat_init_rst(). Let's detect when we've already done detection
+	 * kerndat_init(). Let's detect when we've already done detection
 	 * and not do it again.
 	 */
 	if (name)