Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 53 insertions, 0 deletions

diff --git a/src/os/bluestore/HybridAllocator.h b/src/os/bluestore/HybridAllocator.h
new file mode 100644
index 000000000..d60fc1a31
--- /dev/null
+++ b/src/os/bluestore/HybridAllocator.h
@@ -0,0 +1,53 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#pragma once
+
+#include <mutex>
+
+#include "AvlAllocator.h"
+#include "BitmapAllocator.h"
+
+class HybridAllocator : public AvlAllocator {
+  BitmapAllocator* bmap_alloc = nullptr;
+public:
+  HybridAllocator(CephContext* cct, int64_t device_size, int64_t _block_size,
+                  uint64_t max_mem,
+	          const std::string& name) :
+      AvlAllocator(cct, device_size, _block_size, max_mem, name) {
+  }
+  const char* get_type() const override
+  {
+    return "hybrid";
+  }
+  int64_t allocate(
+    uint64_t want,
+    uint64_t unit,
+    uint64_t max_alloc_size,
+    int64_t  hint,
+    PExtentVector *extents) override;
+  void release(const interval_set<uint64_t>& release_set) override;
+  uint64_t get_free() override;
+  double get_fragmentation() override;
+
+  void dump() override;
+  void foreach(
+    std::function<void(uint64_t offset, uint64_t length)> notify) override;
+  void init_rm_free(uint64_t offset, uint64_t length) override;
+  void shutdown() override;
+
+protected:
+  // intended primarily for UT
+  BitmapAllocator* get_bmap() {
+    return bmap_alloc;
+  }
+  const BitmapAllocator* get_bmap() const {
+    return bmap_alloc;
+  }
+private:
+
+  void _spillover_range(uint64_t start, uint64_t end) override;
+
+  // called when extent to be released/marked free
+  void _add_to_tree(uint64_t start, uint64_t size) override;
+};