check: collect mounts of the current mntns

They are used for collecting unix sockets
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

cr-check.c

@@ -28,6 +28,8 @@
 #include "ptrace.h"
 #include "kerndat.h"
 #include "tun.h"
+#include "namespaces.h"
+#include "pstree.h"
 
 static int check_tty(void)
 {
@@ -529,6 +531,7 @@ static int check_posix_timers(void)
 
 int cr_check(void)
 {
+	struct ns_id ns = { .pid = getpid(), .nd = &mnt_ns_desc };
 	int ret = 0;
 
 	log_set_loglevel(LOG_WARN);
@@ -536,10 +539,20 @@ int cr_check(void)
 	if (!is_root_user())
 		return -1;
 
-	if (mntns_collect_root(getpid()) < 0) {
-		pr_err("Can't collect root mount point\n");
+	root_item = alloc_pstree_item();
+	if (root_item == NULL)
+		return -1;
+
+	root_item->pid.real = getpid();
+
+	if (collect_pstree_ids())
+		return -1;
+
+	ns.id = root_item->ids->mnt_ns_id;
+
+	mntinfo = collect_mntinfo(&ns);
+	if (mntinfo == NULL)
 		return -1;
-	}
 
 	if (collect_mount_info(getpid())) {
 		pr_err("Can't collect mount infos\n");

cr-dump.c

@@ -998,7 +998,7 @@ err_close:
 	return -1;
 }
 
-static int collect_pstree_ids(void)
+int collect_pstree_ids(void)
 {
 	struct pstree_item *item;
 

include/mount.h

 #ifndef __CR_MOUNT_H__
 #define __CR_MOUNT_H__
 
+extern struct mount_info *mntinfo;
+
 extern int mntns_collect_root(pid_t pid);
 
 struct proc_mountinfo;

include/pstree.h

@@ -67,4 +67,6 @@ extern CoreEntry *core_entry_alloc(int alloc_thread_info, int alloc_tc);
 extern int pstree_alloc_cores(struct pstree_item *item);
 extern void pstree_free_cores(struct pstree_item *item);
 
+extern int collect_pstree_ids(void);
+
 #endif /* __CR_PSTREE_H__ */

mount.c

@@ -32,7 +32,7 @@
 /*
  * Single linked list of mount points get from proc/images
  */
-static struct mount_info *mntinfo;
+struct mount_info *mntinfo;
 /*
  * Tree of mount points. When required is generated from
  * the mntinfo list. Tree elements are sorted, so that it