1 files changed, 9 insertions, 8 deletions

diff --git a/fs/proc/root.c b/fs/proc/root.c
index 4258384ed22d..ef9fa8e24ad6 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -35,8 +35,8 @@ static int proc_set_super(struct super_block *sb, void *data)
         return set_anon_super(sb, NULL);
 }
 
-static int proc_get_sb(struct file_system_type *fs_type,
-        int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *proc_mount(struct file_system_type *fs_type,
+        int flags, const char *dev_name, void *data)
 {
         int err;
         struct super_block *sb;
@@ -61,14 +61,14 @@ static int proc_get_sb(struct file_system_type *fs_type,
 
         sb = sget(fs_type, proc_test_super, proc_set_super, ns);
         if (IS_ERR(sb))
-                return PTR_ERR(sb);
+                return ERR_CAST(sb);
 
         if (!sb->s_root) {
                 sb->s_flags = flags;
                 err = proc_fill_super(sb);
                 if (err) {
                         deactivate_locked_super(sb);
-                        return err;
+                        return ERR_PTR(err);
                 }
 
                 ei = PROC_I(sb->s_root->d_inode);
@@ -79,11 +79,9 @@ static int proc_get_sb(struct file_system_type *fs_type,
                 }
 
                 sb->s_flags |= MS_ACTIVE;
-                ns->proc_mnt = mnt;
         }
 
-        simple_set_mnt(mnt, sb);
-        return 0;
+        return dget(sb->s_root);
 }
 
 static void proc_kill_sb(struct super_block *sb)
@@ -97,7 +95,7 @@ static void proc_kill_sb(struct super_block *sb)
 
 static struct file_system_type proc_fs_type = {
         .name           = "proc",
-        .get_sb         = proc_get_sb,
+        .mount          = proc_mount,
         .kill_sb        = proc_kill_sb,
 };
 
@@ -115,6 +113,7 @@ void __init proc_root_init(void)
                 return;
         }
 
+        init_pid_ns.proc_mnt = proc_mnt;
         proc_symlink("mounts", NULL, "self/mounts");
 
         proc_net_init();
@@ -179,6 +178,7 @@ static int proc_root_readdir(struct file * filp,
 static const struct file_operations proc_root_operations = {
         .read            = generic_read_dir,
         .readdir         = proc_root_readdir,
+        .llseek         = default_llseek,
 };
 
 /*
@@ -212,6 +212,7 @@ int pid_ns_prepare_proc(struct pid_namespace *ns)
         if (IS_ERR(mnt))
                 return PTR_ERR(mnt);
 
+        ns->proc_mnt = mnt;
         return 0;
 }