ipc: introduce lockless pre_down ipcctl

[karo-tx-linux.git] / ipc / util.h

diff --git a/ipc/util.h b/ipc/util.h
index bfc8d4ea6e46484dc1be9927670ccd02caa852c6..13d92fea15a38bcbffbbb828a9c8687f0975ff21 100644 (file)
--- a/ipc/util.h
+++ b/ipc/util.h
@@ -128,6 +128,9 @@ struct kern_ipc_perm *ipc_obtain_object(struct ipc_ids *ids, int id);
 void kernel_to_ipc64_perm(struct kern_ipc_perm *in, struct ipc64_perm *out);
 void ipc64_perm_to_ipc_perm(struct ipc64_perm *in, struct ipc_perm *out);
 int ipc_update_perm(struct ipc64_perm *in, struct kern_ipc_perm *out);
+struct kern_ipc_perm *ipcctl_pre_down_nolock(struct ipc_namespace *ns,
+                                            struct ipc_ids *ids, int id, int cmd,
+                                            struct ipc64_perm *perm, int extra_perm);
 struct kern_ipc_perm *ipcctl_pre_down(struct ipc_namespace *ns,
                                      struct ipc_ids *ids, int id, int cmd,
                                      struct ipc64_perm *perm, int extra_perm);