mount: debug error in make_yard

Signed-off-by: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
Snorch · Apr 16, 2024 · 7c6d053 · 7c6d053
1 parent 1a4c103
commit 7c6d053
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Showing 3 changed files with 15 additions and 5 deletions.
diff --git a/criu/cgroup.c b/criu/cgroup.c
@@ -1887,8 +1887,10 @@ static int prepare_cgroup_sfd(CgroupEntry *ce)
 			return -1;
 		}
 
-		if (make_yard(cg_yard))
+		if (make_yard(cg_yard)) {
+			pr_err("DEBUG[%s]: Failed to mount tmpfs on %s\n", __func__, cg_yard);
 			return -1;
+		}
 	}
 
 	pr_debug("Opening %s as cg yard\n", cg_yard);

diff --git a/criu/mount-v2.c b/criu/mount-v2.c
@@ -762,8 +762,10 @@ static int do_mount_one_v2(struct mount_info *mi)
 
 static int populate_mnt_ns_v2(void)
 {
-	if (make_yard(mnt_roots))
+	if (make_yard(mnt_roots)) {
+		pr_err("DEBUG[%s]: Failed to mount tmpfs on %s\n", __func__, mnt_roots);
 		return -1;
+	}
 
 	if (mnt_tree_for_each(root_yard_mp, do_mount_one_v2))
 		return -1;
@@ -1137,8 +1139,10 @@ static int get_empty_mntns(void)
 		goto err;
 	}
 
-	if (make_yard(mnt_roots))
+	if (make_yard(mnt_roots)) {
+		pr_err("DEBUG[%s]: Failed to mount tmpfs on %s\n", __func__, mnt_roots);
 		goto err;
+	}
 
 	if (cr_pivot_root(mnt_roots))
 		goto err;
@@ -1194,8 +1198,10 @@ static int pre_create_mount_namespaces(void)
 			goto err;
 		}
 
-		if (make_yard(mnt_roots))
+		if (make_yard(mnt_roots)) {
+			pr_err("DEBUG[%s]: Failed to mount tmpfs on %s\n", __func__, mnt_roots);
 			goto err;
+		}
 
 		print_ns_root(nsid, 0, path, sizeof(path));
 		if (mkdir(path, 0600)) {

diff --git a/criu/mount.c b/criu/mount.c
@@ -3512,8 +3512,10 @@ static int populate_roots_yard(struct mount_info *cr_time)
 	char path[PATH_MAX];
 	struct ns_id *nsid;
 
-	if (make_yard(mnt_roots))
+	if (make_yard(mnt_roots)) {
+		pr_err("DEBUG[%s]: Failed to mount tmpfs on %s\n", __func__, mnt_roots);
 		return -1;
+	}
 
 	for (nsid = ns_ids; nsid != NULL; nsid = nsid->next) {
 		if (nsid->nd != &mnt_ns_desc)