CRED: Wrap current->cred and a few other accessors

Wrap current->cred and a few other accessors to hide their actual
implementation.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: James Morris <jmorris@namei.org>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>

2 files changed, 3 insertions, 3 deletions

diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index e1885b494bac..1151881ccb9a 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -112,6 +112,7 @@ static inline struct mqueue_inode_info *MQUEUE_I(struct inode *inode)
 static struct inode *mqueue_get_inode(struct super_block *sb, int mode,
                                                         struct mq_attr *attr)
 {
+        struct user_struct *u = current_user();
         struct inode *inode;
 
         inode = new_inode(sb);
@@ -126,7 +127,6 @@ static struct inode *mqueue_get_inode(struct super_block *sb, int mode,
                 if (S_ISREG(mode)) {
                         struct mqueue_inode_info *info;
                         struct task_struct *p = current;
-                        struct user_struct *u = p->cred->user;
                         unsigned long mq_bytes, mq_msg_tblsz;
 
                         inode->i_fop = &mqueue_file_operations;
diff --git a/ipc/shm.c b/ipc/shm.c
index 264a9d33c5dd..38a055758a9b 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -366,7 +366,7 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
         if (shmflg & SHM_HUGETLB) {
                 /* hugetlb_file_setup takes care of mlock user accounting */
                 file = hugetlb_file_setup(name, size);
-                shp->mlock_user = current->cred->user;
+                shp->mlock_user = current_user();
         } else {
                 int acctflag = VM_ACCOUNT;
                 /*
@@ -767,7 +767,7 @@ asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf)
                         goto out_unlock;
                 
                 if(cmd==SHM_LOCK) {
-                        struct user_struct *user = current->cred->user;
+                        struct user_struct *user = current_user();
                         if (!is_file_hugepages(shp->shm_file)) {
                                 err = shmem_lock(shp->shm_file, 1, user);
                                 if (!err && !(shp->shm_perm.mode & SHM_LOCKED)){