remove ceph code

[stor4nfv.git] / src / ceph / src / os / filestore / WBThrottle.h

diff --git a/src/ceph/src/os/filestore/WBThrottle.h b/src/ceph/src/os/filestore/WBThrottle.h
deleted file mode 100644 (file)
index 5c71dac..0000000
--- a/src/ceph/src/os/filestore/WBThrottle.h
+++ /dev/null
@@ -1,188 +0,0 @@
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
-// vim: ts=8 sw=2 smarttab
-/*
- * Ceph - scalable distributed file system
- *
- * Copyright (C) 2013 Inktank Storage, Inc.
- *
- * This is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License version 2.1, as published by the Free Software
- * Foundation.  See file COPYING.
- *
- */
-
-#ifndef WBTHROTTLE_H
-#define WBTHROTTLE_H
-
-#include "include/unordered_map.h"
-#include <boost/tuple/tuple.hpp>
-#include "include/memory.h"
-#include "common/Formatter.h"
-#include "common/hobject.h"
-#include "include/interval_set.h"
-#include "FDCache.h"
-#include "common/Thread.h"
-#include "common/ceph_context.h"
-
-class PerfCounters;
-enum {
-  l_wbthrottle_first = 999090,
-  l_wbthrottle_bytes_dirtied,
-  l_wbthrottle_bytes_wb,
-  l_wbthrottle_ios_dirtied,
-  l_wbthrottle_ios_wb,
-  l_wbthrottle_inodes_dirtied,
-  l_wbthrottle_inodes_wb,
-  l_wbthrottle_last
-};
-
-/**
- * WBThrottle
- *
- * Tracks, throttles, and flushes outstanding IO
- */
-class WBThrottle : Thread, public md_config_obs_t {
-  ghobject_t clearing;
-  /* *_limits.first is the start_flusher limit and
-   * *_limits.second is the hard limit
-   */
-
-  /// Limits on unflushed bytes
-  pair<uint64_t, uint64_t> size_limits;
-
-  /// Limits on unflushed ios
-  pair<uint64_t, uint64_t> io_limits;
-
-  /// Limits on unflushed objects
-  pair<uint64_t, uint64_t> fd_limits;
-
-  uint64_t cur_ios;  /// Currently unflushed IOs
-  uint64_t cur_size; /// Currently unflushed bytes
-
-  /**
-   * PendingWB tracks the ios pending on an object.
-   */
-  class PendingWB {
-  public:
-    bool nocache;
-    uint64_t size;
-    uint64_t ios;
-    PendingWB() : nocache(true), size(0), ios(0) {}
-    void add(bool _nocache, uint64_t _size, uint64_t _ios) {
-      if (!_nocache)
-       nocache = false; // only nocache if all writes are nocache
-      size += _size;
-      ios += _ios;
-    }
-  };
-
-  CephContext *cct;
-  PerfCounters *logger;
-  bool stopping;
-  Mutex lock;
-  Cond cond;
-
-
-  /**
-   * Flush objects in lru order
-   */
-  list<ghobject_t> lru;
-  ceph::unordered_map<ghobject_t, list<ghobject_t>::iterator> rev_lru;
-  void remove_object(const ghobject_t &oid) {
-    assert(lock.is_locked());
-    ceph::unordered_map<ghobject_t, list<ghobject_t>::iterator>::iterator iter =
-      rev_lru.find(oid);
-    if (iter == rev_lru.end())
-      return;
-
-    lru.erase(iter->second);
-    rev_lru.erase(iter);
-  }
-  ghobject_t pop_object() {
-    assert(!lru.empty());
-    ghobject_t oid(lru.front());
-    lru.pop_front();
-    rev_lru.erase(oid);
-    return oid;
-  }
-  void insert_object(const ghobject_t &oid) {
-    assert(rev_lru.find(oid) == rev_lru.end());
-    lru.push_back(oid);
-    rev_lru.insert(make_pair(oid, --lru.end()));
-  }
-
-  ceph::unordered_map<ghobject_t, pair<PendingWB, FDRef> > pending_wbs;
-
-  /// get next flush to perform
-  bool get_next_should_flush(
-    boost::tuple<ghobject_t, FDRef, PendingWB> *next ///< [out] next to flush
-    ); ///< @return false if we are shutting down
-public:
-  enum FS {
-    BTRFS,
-    XFS
-  };
-
-private:
-  FS fs;
-
-  void set_from_conf();
-  bool beyond_limit() const {
-    if (cur_ios < io_limits.first &&
-       pending_wbs.size() < fd_limits.first &&
-       cur_size < size_limits.first)
-      return false;
-    else
-      return true;
-  }
-  bool need_flush() const {
-    if (cur_ios < io_limits.second &&
-       pending_wbs.size() < fd_limits.second &&
-       cur_size < size_limits.second)
-      return false;
-    else
-      return true;
-  }
-
-public:
-  explicit WBThrottle(CephContext *cct);
-  ~WBThrottle() override;
-
-  void start();
-  void stop();
-  /// Set fs as XFS or BTRFS
-  void set_fs(FS new_fs) {
-    Mutex::Locker l(lock);
-    fs = new_fs;
-    set_from_conf();
-  }
-
-  /// Queue wb on oid, fd taking throttle (does not block)
-  void queue_wb(
-    FDRef fd,              ///< [in] FDRef to oid
-    const ghobject_t &oid, ///< [in] object
-    uint64_t offset,       ///< [in] offset written
-    uint64_t len,          ///< [in] length written
-    bool nocache           ///< [in] try to clear out of cache after write
-    );
-
-  /// Clear all wb (probably due to sync)
-  void clear();
-
-  /// Clear object
-  void clear_object(const ghobject_t &oid);
-
-  /// Block until there is throttle available
-  void throttle();
-
-  /// md_config_obs_t
-  const char** get_tracked_conf_keys() const override;
-  void handle_conf_change(const md_config_t *conf,
-                         const std::set<std::string> &changed) override;
-
-  /// Thread
-  void *entry() override;
-};
-
-#endif