+/**
+ * IO arguments for various VFS I/O interfaces.
+ */
+struct vvp_io_args {
+ /** normal/sendfile/splice */
+ enum vvp_io_subtype via_io_subtype;
+
+ union {
+ struct {
+#ifndef HAVE_FILE_WRITEV
+ struct kiocb *via_iocb;
+#endif
+ struct iovec *via_iov;
+ unsigned long via_nrsegs;
+ } normal;
+ struct {
+ read_actor_t via_actor;
+ void *via_target;
+ } sendfile;
+ struct {
+ struct pipe_inode_info *via_pipe;
+ unsigned int via_flags;
+ } splice;
+ } u;
+};
+
+struct ll_cl_context {
+ void *lcc_cookie;
+ struct cl_io *lcc_io;
+ struct cl_page *lcc_page;
+ struct lu_env *lcc_env;
+ int lcc_refcheck;
+ int lcc_created;
+};
+
+struct vvp_thread_info {
+ struct ost_lvb vti_lvb;
+ struct cl_2queue vti_queue;
+ struct iovec vti_local_iov;
+ struct vvp_io_args vti_args;
+ struct ra_io_arg vti_ria;
+ struct kiocb vti_kiocb;
+ struct ll_cl_context vti_io_ctx;
+};
+
+static inline struct vvp_thread_info *vvp_env_info(const struct lu_env *env)
+{
+ extern struct lu_context_key vvp_key;
+ struct vvp_thread_info *info;
+
+ info = lu_context_key_get(&env->le_ctx, &vvp_key);
+ LASSERT(info != NULL);
+ return info;
+}
+
+static inline struct vvp_io_args *vvp_env_args(const struct lu_env *env,
+ enum vvp_io_subtype type)
+{
+ struct vvp_io_args *ret = &vvp_env_info(env)->vti_args;
+
+ ret->via_io_subtype = type;
+
+ return ret;
+}
+