2 files changed, 7 insertions, 15 deletions

diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 2e0ecfcc881d..9a142a290749 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -108,7 +108,7 @@ static struct ipc_namespace *get_ns_from_inode(struct inode *inode)
 }
 
 static struct inode *mqueue_get_inode(struct super_block *sb,
-                struct ipc_namespace *ipc_ns, int mode,
+                struct ipc_namespace *ipc_ns, umode_t mode,
                 struct mq_attr *attr)
 {
         struct user_struct *u = current_user();
@@ -243,7 +243,6 @@ static struct inode *mqueue_alloc_inode(struct super_block *sb)
 static void mqueue_i_callback(struct rcu_head *head)
 {
         struct inode *inode = container_of(head, struct inode, i_rcu);
-        INIT_LIST_HEAD(&inode->i_dentry);
         kmem_cache_free(mqueue_inode_cachep, MQUEUE_I(inode));
 }
 
@@ -296,7 +295,7 @@ static void mqueue_evict_inode(struct inode *inode)
 }
 
 static int mqueue_create(struct inode *dir, struct dentry *dentry,
-                                int mode, struct nameidata *nd)
+                                umode_t mode, struct nameidata *nd)
 {
         struct inode *inode;
         struct mq_attr *attr = dentry->d_fsdata;
@@ -611,7 +610,7 @@ static int mq_attr_ok(struct ipc_namespace *ipc_ns, struct mq_attr *attr)
  * Invoked when creating a new queue via sys_mq_open
  */
 static struct file *do_create(struct ipc_namespace *ipc_ns, struct dentry *dir,
-                        struct dentry *dentry, int oflag, mode_t mode,
+                        struct dentry *dentry, int oflag, umode_t mode,
                         struct mq_attr *attr)
 {
         const struct cred *cred = current_cred();
@@ -680,7 +679,7 @@ err:
         return ERR_PTR(ret);
 }
 
-SYSCALL_DEFINE4(mq_open, const char __user *, u_name, int, oflag, mode_t, mode,
+SYSCALL_DEFINE4(mq_open, const char __user *, u_name, int, oflag, umode_t, mode,
                 struct mq_attr __user *, u_attr)
 {
         struct dentry *dentry;
@@ -1269,7 +1268,7 @@ void mq_clear_sbinfo(struct ipc_namespace *ns)
 
 void mq_put_mnt(struct ipc_namespace *ns)
 {
-        mntput(ns->mq_mnt);
+        kern_unmount(ns->mq_mnt);
 }
 
 static int __init init_mqueue_fs(void)
@@ -1291,11 +1290,9 @@ static int __init init_mqueue_fs(void)
 
         spin_lock_init(&mq_lock);
 
-        init_ipc_ns.mq_mnt = kern_mount_data(&mqueue_fs_type, &init_ipc_ns);
-        if (IS_ERR(init_ipc_ns.mq_mnt)) {
-                error = PTR_ERR(init_ipc_ns.mq_mnt);
+        error = mq_init_ns(&init_ipc_ns);
+        if (error)
                 goto out_filesystem;
-        }
 
         return 0;
 
diff --git a/ipc/msgutil.c b/ipc/msgutil.c
index 8b5ce5d3f3ef..5652101cdac0 100644
--- a/ipc/msgutil.c
+++ b/ipc/msgutil.c
@@ -27,11 +27,6 @@ DEFINE_SPINLOCK(mq_lock);
  */
 struct ipc_namespace init_ipc_ns = {
         .count          = ATOMIC_INIT(1),
-#ifdef CONFIG_POSIX_MQUEUE
-        .mq_queues_max   = DFLT_QUEUESMAX,
-        .mq_msg_max      = DFLT_MSGMAX,
-        .mq_msgsize_max  = DFLT_MSGSIZEMAX,
-#endif
         .user_ns = &init_user_ns,
 };