make ptrace_untrace() static

[linux-2.6.git] / ipc / util.c

diff --git a/ipc/util.c b/ipc/util.c
index 0f468c34e83c91f0b50f2a5d3dc017dfe1297813..49b3ea615dc5fa991d921667f44172da02331a55 100644 (file)
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -716,56 +716,6 @@ struct kern_ipc_perm *ipc_lock(struct ipc_ids *ids, int id)
        return out;
 }
 
-/**
- * ipc_lock_down - Lock an ipc structure with rw_sem held
- * @ids: IPC identifier set
- * @id: ipc id to look for
- *
- * Look for an id in the ipc ids idr and lock the associated ipc object.
- *
- * The ipc object is locked on exit.
- *
- * This is the routine that should be called when the rw_mutex is already
- * held, i.e. idr tree protected.
- */
-
-struct kern_ipc_perm *ipc_lock_down(struct ipc_ids *ids, int id)
-{
-       struct kern_ipc_perm *out;
-       int lid = ipcid_to_idx(id);
-
-       rcu_read_lock();
-       out = idr_find(&ids->ipcs_idr, lid);
-       if (out == NULL) {
-               rcu_read_unlock();
-               return ERR_PTR(-EINVAL);
-       }
-
-       spin_lock(&out->lock);
-
-       /*
-        * No need to verify that the structure is still valid since the
-        * rw_mutex is held.
-        */
-       return out;
-}
-
-struct kern_ipc_perm *ipc_lock_check_down(struct ipc_ids *ids, int id)
-{
-       struct kern_ipc_perm *out;
-
-       out = ipc_lock_down(ids, id);
-       if (IS_ERR(out))
-               return out;
-
-       if (ipc_checkid(out, id)) {
-               ipc_unlock(out);
-               return ERR_PTR(-EIDRM);
-       }
-
-       return out;
-}
-
 struct kern_ipc_perm *ipc_lock_check(struct ipc_ids *ids, int id)
 {
        struct kern_ipc_perm *out;
@@ -837,7 +787,7 @@ struct kern_ipc_perm *ipcctl_pre_down(struct ipc_ids *ids, int id, int cmd,
        int err;
 
        down_write(&ids->rw_mutex);
-       ipcp = ipc_lock_check_down(ids, id);
+       ipcp = ipc_lock_check(ids, id);
        if (IS_ERR(ipcp)) {
                err = PTR_ERR(ipcp);
                goto out_up;