Merge branch 'work.ipc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

[GitHub/moto-9609/android_kernel_motorola_exynos9610.git] / ipc / util.h

diff --git a/ipc/util.h b/ipc/util.h
index 80c9f51c3f07bed4bad42edec9f71177d69ff1e4..b21297bc11ebfe4bd65317e59a401a2fcd49e566 100644 (file)
--- a/ipc/util.h
+++ b/ipc/util.h
@@ -194,4 +194,34 @@ int ipcget(struct ipc_namespace *ns, struct ipc_ids *ids,
                        const struct ipc_ops *ops, struct ipc_params *params);
 void free_ipcs(struct ipc_namespace *ns, struct ipc_ids *ids,
                void (*free)(struct ipc_namespace *, struct kern_ipc_perm *));
+
+#ifdef CONFIG_COMPAT
+#include <linux/compat.h>
+struct compat_ipc_perm {
+       key_t key;
+       __compat_uid_t uid;
+       __compat_gid_t gid;
+       __compat_uid_t cuid;
+       __compat_gid_t cgid;
+       compat_mode_t mode;
+       unsigned short seq;
+};
+
+void to_compat_ipc_perm(struct compat_ipc_perm *, struct ipc64_perm *);
+void to_compat_ipc64_perm(struct compat_ipc64_perm *, struct ipc64_perm *);
+int get_compat_ipc_perm(struct ipc64_perm *, struct compat_ipc_perm __user *);
+int get_compat_ipc64_perm(struct ipc64_perm *,
+                         struct compat_ipc64_perm __user *);
+
+static inline int compat_ipc_parse_version(int *cmd)
+{
+#ifdef CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION
+       int version = *cmd & IPC_64;
+       *cmd &= ~IPC_64;
+       return version;
+#else
+       return IPC_64;
+#endif
+}
+#endif
 #endif