remove ceph code

[stor4nfv.git] / src / ceph / src / librbd / operation / ResizeRequest.h

diff --git a/src/ceph/src/librbd/operation/ResizeRequest.h b/src/ceph/src/librbd/operation/ResizeRequest.h
deleted file mode 100644 (file)
index 4ec79c3..0000000
--- a/src/ceph/src/librbd/operation/ResizeRequest.h
+++ /dev/null
@@ -1,158 +0,0 @@
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
-// vim: ts=8 sw=2 smarttab
-#ifndef CEPH_LIBRBD_OPERATION_RESIZE_REQUEST_H
-#define CEPH_LIBRBD_OPERATION_RESIZE_REQUEST_H
-
-#include "librbd/operation/Request.h"
-#include "include/xlist.h"
-
-namespace librbd
-{
-
-class ImageCtx;
-class ProgressContext;
-
-namespace operation {
-
-template <typename ImageCtxT = ImageCtx>
-class ResizeRequest : public Request<ImageCtxT> {
-public:
-  static ResizeRequest *create(ImageCtxT &image_ctx, Context *on_finish,
-                               uint64_t new_size, bool allow_shrink,
-                               ProgressContext &prog_ctx, uint64_t journal_op_tid,
-                               bool disable_journal) {
-    return new ResizeRequest(image_ctx, on_finish, new_size, allow_shrink, prog_ctx,
-                             journal_op_tid, disable_journal);
-  }
-
-  ResizeRequest(ImageCtxT &image_ctx, Context *on_finish, uint64_t new_size,
-                bool allow_shrink, ProgressContext &prog_ctx, uint64_t journal_op_tid,
-                bool disable_journal);
-  ~ResizeRequest() override;
-
-  inline bool shrinking() const {
-    return (m_shrink_size_visible && m_new_size < m_original_size);
-  }
-
-  inline uint64_t get_image_size() const {
-    return m_new_size;
-  }
-
-  void send() override;
-
-protected:
-  void send_op() override;
-  bool should_complete(int r) override {
-    return true;
-  }
-  bool can_affect_io() const override {
-    return true;
-  }
-  journal::Event create_event(uint64_t op_tid) const override {
-    return journal::ResizeEvent(op_tid, m_new_size);
-  }
-
-private:
-  /**
-   * Resize goes through the following state machine to resize the image
-   * and update the object map:
-   *
-   * @verbatim
-   *
-   * <start>
-   *    |
-   *    v
-   * STATE_PRE_BLOCK_WRITES
-   *    |
-   *    v
-   * STATE_APPEND_OP_EVENT (skip if journaling
-   *    |                   disabled)
-   *    | (unblock writes)
-   *    |
-   *    |
-   *    | (grow)
-   *    |\--------> STATE_GROW_OBJECT_MAP (skip if object map
-   *    |                 |                disabled)
-   *    |                 v
-   *    |           STATE_POST_BLOCK_WRITES
-   *    |                 |
-   *    |                 v
-   *    |           STATE_UPDATE_HEADER ----------------------------\
-   *    |                                                           |
-   *    | (shrink)                                                  |
-   *    |\--------> STATE_FLUSH_CACHE                               |
-   *    |                 |                                         |
-   *    |                 v                                         |
-   *    |           STATE_INVALIDATE_CACHE                          |
-   *    |                 |                                         |
-   *    |                 v                                         |
-   *    |           STATE_TRIM_IMAGE                                |
-   *    |                 |                                         |
-   *    |                 v                                         |
-   *    |           STATE_POST_BLOCK_WRITES                         |
-   *    |                 |                                         |
-   *    |                 v                                         |
-   *    |           STATE_UPDATE_HEADER                             |
-   *    |                 |                                         |
-   *    |                 v                                         |
-   *    |           STATE_SHRINK_OBJECT_MAP (skip if object map     |
-   *    |                 |                  disabled)              |
-   *    |                 | (unblock writes)                        |
-   *    | (no change)     v                                         |
-   *    \------------> <finish> <-----------------------------------/
-   *
-   * @endverbatim
-   *
-   * The _OBJECT_MAP states are skipped if the object map isn't enabled.
-   * The state machine will immediately transition to _FINISHED if there
-   * are no objects to trim.
-   */
-
-  uint64_t m_original_size;
-  uint64_t m_new_size;
-  bool m_allow_shrink = true;
-  ProgressContext &m_prog_ctx;
-  uint64_t m_new_parent_overlap;
-  bool m_shrink_size_visible = false;
-  bool m_disable_journal = false;
-
-  typename xlist<ResizeRequest<ImageCtxT>*>::item m_xlist_item;
-
-  void send_pre_block_writes();
-  Context *handle_pre_block_writes(int *result);
-
-  Context *send_append_op_event();
-  Context *handle_append_op_event(int *result);
-
-  void send_flush_cache();
-  Context *handle_flush_cache(int *result);
-
-  void send_invalidate_cache();
-  Context *handle_invalidate_cache(int *result);
-
-  void send_trim_image();
-  Context *handle_trim_image(int *result);
-
-  Context *send_grow_object_map();
-  Context *handle_grow_object_map(int *result);
-
-  Context *send_shrink_object_map();
-  Context *handle_shrink_object_map(int *result);
-
-  void send_post_block_writes();
-  Context *handle_post_block_writes(int *result);
-
-  void send_update_header();
-  Context *handle_update_header(int *result);
-
-  void compute_parent_overlap();
-  void update_size_and_overlap();
-
-};
-
-} // namespace operation
-} // namespace librbd
-
-extern template class librbd::operation::ResizeRequest<librbd::ImageCtx>;
-
-#endif // CEPH_LIBRBD_OPERATION_RESIZE_REQUEST_H