extra_context
struct extra_context __user *extra;
extra = (struct extra_context __user *)userp;
sizeof(struct extra_context), false);
#define EXTRA_CONTEXT_SIZE round_up(sizeof(struct extra_context), 16)
struct extra_context const __user *extra;
extra = (struct extra_context const __user *)userp;
struct extra_context *extra, *copied_extra;
extra = (struct extra_context *)head;
to_copy += offset + sizeof(struct extra_context) + 16;
copied_extra = (struct extra_context *)&(td->live_uc->uc_mcontext.__reserved[offset]);
struct extra_context *extra = NULL;
sizeof(struct extra_context))
extra = (struct extra_context *)head;
bool validate_extra_context(struct extra_context *extra, char **err,