gcs_context
sizeof(struct gcs_context));
struct gcs_context __user *gcs_ctx =
struct gcs_context __user *gcs;
static int preserve_gcs_context(struct gcs_context __user *ctx)
user->gcs = (struct gcs_context __user *)head;
struct gcs_context *gcs;
gcs = (struct gcs_context *)head;
if (head->size != sizeof(struct gcs_context))