update ceph source to reef 18.1.2

[ceph.git] / ceph / src / crimson / os / seastore / lba_manager / btree / btree_range_pin.cc

diff --git a/ceph/src/crimson/os/seastore/lba_manager/btree/btree_range_pin.cc b/ceph/src/crimson/os/seastore/lba_manager/btree/btree_range_pin.cc
deleted file mode 100644 (file)
index ffd0462..0000000
--- a/ceph/src/crimson/os/seastore/lba_manager/btree/btree_range_pin.cc
+++ /dev/null
@@ -1,160 +0,0 @@
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
-// vim: ts=8 sw=2 smarttab
-
-#include "crimson/common/log.h"
-
-#include "crimson/os/seastore/lba_manager/btree/btree_range_pin.h"
-
-namespace {
-  seastar::logger& logger() {
-    return crimson::get_logger(ceph_subsys_seastore_lba);
-  }
-}
-
-namespace crimson::os::seastore::lba_manager::btree {
-
-void btree_range_pin_t::take_pin(btree_range_pin_t &other)
-{
-  ceph_assert(other.extent);
-  if (other.pins) {
-    other.pins->replace_pin(*this, other);
-    pins = other.pins;
-    other.pins = nullptr;
-
-    if (other.has_ref()) {
-      other.drop_ref();
-      acquire_ref();
-    }
-  }
-}
-
-btree_range_pin_t::~btree_range_pin_t()
-{
-  ceph_assert(!pins == !is_linked());
-  ceph_assert(!ref);
-  if (pins) {
-    logger().debug("{}: removing {}", __func__, *this);
-    pins->remove_pin(*this, true);
-  }
-  extent = nullptr;
-}
-
-void btree_pin_set_t::replace_pin(btree_range_pin_t &to, btree_range_pin_t &from)
-{
-  pins.replace_node(pins.iterator_to(from), to);
-}
-
-void btree_pin_set_t::remove_pin(btree_range_pin_t &pin, bool do_check_parent)
-{
-  logger().debug("{}: {}", __func__, pin);
-  ceph_assert(pin.is_linked());
-  ceph_assert(pin.pins);
-  ceph_assert(!pin.ref);
-
-  pins.erase(pin);
-  pin.pins = nullptr;
-
-  if (do_check_parent) {
-    check_parent(pin);
-  }
-}
-
-btree_range_pin_t *btree_pin_set_t::maybe_get_parent(
-  const lba_node_meta_t &meta)
-{
-  auto cmeta = meta;
-  cmeta.depth++;
-  auto iter = pins.upper_bound(cmeta, btree_range_pin_t::meta_cmp_t());
-  if (iter == pins.begin()) {
-    return nullptr;
-  } else {
-    --iter;
-    if (iter->range.is_parent_of(meta)) {
-      return &*iter;
-    } else {
-      return nullptr;
-    }
-  }
-}
-
-const btree_range_pin_t *btree_pin_set_t::maybe_get_first_child(
-  const lba_node_meta_t &meta) const
-{
-  if (meta.depth == 0) {
-    return nullptr;
-  }
-
-  auto cmeta = meta;
-  cmeta.depth--;
-
-  auto iter = pins.lower_bound(cmeta, btree_range_pin_t::meta_cmp_t());
-  if (iter == pins.end()) {
-    return nullptr;
-  } else if (meta.is_parent_of(iter->range)) {
-    return &*iter;
-  } else {
-    return nullptr;
-  }
-}
-
-void btree_pin_set_t::release_if_no_children(btree_range_pin_t &pin)
-{
-  ceph_assert(pin.is_linked());
-  if (maybe_get_first_child(pin.range) == nullptr) {
-    pin.drop_ref();
-  }
-}
-
-void btree_pin_set_t::add_pin(btree_range_pin_t &pin)
-{
-  ceph_assert(!pin.is_linked());
-  ceph_assert(!pin.pins);
-  ceph_assert(!pin.ref);
-
-  auto [prev, inserted] = pins.insert(pin);
-  if (!inserted) {
-    logger().error(
-      "{}: unable to add {} ({}), found {} ({})",
-      __func__,
-      pin,
-      *(pin.extent),
-      *prev,
-      *(prev->extent));
-    ceph_assert(0 == "impossible");
-    return;
-  }
-  pin.pins = this;
-  if (!pin.is_root()) {
-    auto *parent = maybe_get_parent(pin.range);
-    ceph_assert(parent);
-    if (!parent->has_ref()) {
-      logger().debug("{}: acquiring parent {}", __func__,
-                    static_cast<void*>(parent));
-      parent->acquire_ref();
-    } else {
-      logger().debug("{}: parent has ref {}", __func__,
-                    static_cast<void*>(parent));
-    }
-  }
-  if (maybe_get_first_child(pin.range) != nullptr) {
-    logger().debug("{}: acquiring self {}", __func__, pin);
-    pin.acquire_ref();
-  }
-}
-
-void btree_pin_set_t::retire(btree_range_pin_t &pin)
-{
-  pin.drop_ref();
-  remove_pin(pin, false);
-}
-
-void btree_pin_set_t::check_parent(btree_range_pin_t &pin)
-{
-  auto parent = maybe_get_parent(pin.range);
-  if (parent) {
-    logger().debug("{}: releasing parent {}", __func__, *parent);
-    release_if_no_children(*parent);
-  }
-}
-
-}