X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fsrc%2Flibrbd%2Fobject_map%2FRefreshRequest.cc;fp=src%2Fceph%2Fsrc%2Flibrbd%2Fobject_map%2FRefreshRequest.cc;h=0000000000000000000000000000000000000000;hb=7da45d65be36d36b880cc55c5036e96c24b53f00;hp=41e5aafba549bee9dea22749c4c04e1c1e70618d;hpb=691462d09d0987b47e112d6ee8740375df3c51b2;p=stor4nfv.git diff --git a/src/ceph/src/librbd/object_map/RefreshRequest.cc b/src/ceph/src/librbd/object_map/RefreshRequest.cc deleted file mode 100644 index 41e5aaf..0000000 --- a/src/ceph/src/librbd/object_map/RefreshRequest.cc +++ /dev/null @@ -1,288 +0,0 @@ -// -*- mode:C; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- -// vim: ts=8 sw=2 smarttab - -#include "librbd/object_map/RefreshRequest.h" -#include "cls/lock/cls_lock_client.h" -#include "common/dout.h" -#include "common/errno.h" -#include "librbd/ImageCtx.h" -#include "librbd/ObjectMap.h" -#include "librbd/object_map/InvalidateRequest.h" -#include "librbd/object_map/LockRequest.h" -#include "librbd/object_map/ResizeRequest.h" -#include "librbd/Utils.h" -#include "osdc/Striper.h" - -#define dout_subsys ceph_subsys_rbd -#undef dout_prefix -#define dout_prefix *_dout << "librbd::object_map::RefreshRequest: " - -namespace librbd { - -using util::create_context_callback; -using util::create_rados_callback; - -namespace object_map { - -template -RefreshRequest::RefreshRequest(I &image_ctx, ceph::BitVector<2> *object_map, - uint64_t snap_id, Context *on_finish) - : m_image_ctx(image_ctx), m_object_map(object_map), m_snap_id(snap_id), - m_on_finish(on_finish), m_object_count(0), - m_truncate_on_disk_object_map(false) { -} - -template -void RefreshRequest::send() { - { - RWLock::RLocker snap_locker(m_image_ctx.snap_lock); - m_object_count = Striper::get_num_objects( - m_image_ctx.layout, m_image_ctx.get_image_size(m_snap_id)); - } - - - CephContext *cct = m_image_ctx.cct; - ldout(cct, 20) << this << " " << __func__ << ": " - << "object_count=" << m_object_count << dendl; - send_lock(); -} - -template -void RefreshRequest::apply() { - uint64_t num_objs; - { - RWLock::RLocker snap_locker(m_image_ctx.snap_lock); - num_objs = Striper::get_num_objects( - m_image_ctx.layout, m_image_ctx.get_image_size(m_snap_id)); - } - assert(m_on_disk_object_map.size() >= num_objs); - - *m_object_map = m_on_disk_object_map; -} - -template -void RefreshRequest::send_lock() { - CephContext *cct = m_image_ctx.cct; - if (m_object_count > cls::rbd::MAX_OBJECT_MAP_OBJECT_COUNT) { - send_invalidate_and_close(); - return; - } else if (m_snap_id != CEPH_NOSNAP) { - send_load(); - return; - } - - std::string oid(ObjectMap<>::object_map_name(m_image_ctx.id, m_snap_id)); - ldout(cct, 10) << this << " " << __func__ << ": oid=" << oid << dendl; - - using klass = RefreshRequest; - Context *ctx = create_context_callback< - klass, &klass::handle_lock>(this); - - LockRequest *req = LockRequest::create(m_image_ctx, ctx); - req->send(); -} - -template -Context *RefreshRequest::handle_lock(int *ret_val) { - CephContext *cct = m_image_ctx.cct; - ldout(cct, 10) << this << " " << __func__ << dendl; - - assert(*ret_val == 0); - send_load(); - return nullptr; -} - -template -void RefreshRequest::send_load() { - CephContext *cct = m_image_ctx.cct; - std::string oid(ObjectMap<>::object_map_name(m_image_ctx.id, m_snap_id)); - ldout(cct, 10) << this << " " << __func__ << ": oid=" << oid << dendl; - - librados::ObjectReadOperation op; - cls_client::object_map_load_start(&op); - - using klass = RefreshRequest; - m_out_bl.clear(); - librados::AioCompletion *rados_completion = - create_rados_callback(this); - int r = m_image_ctx.md_ctx.aio_operate(oid, rados_completion, &op, &m_out_bl); - assert(r == 0); - rados_completion->release(); -} - -template -Context *RefreshRequest::handle_load(int *ret_val) { - CephContext *cct = m_image_ctx.cct; - ldout(cct, 10) << this << " " << __func__ << ": r=" << *ret_val << dendl; - - if (*ret_val == 0) { - bufferlist::iterator bl_it = m_out_bl.begin(); - *ret_val = cls_client::object_map_load_finish(&bl_it, - &m_on_disk_object_map); - } - - std::string oid(ObjectMap<>::object_map_name(m_image_ctx.id, m_snap_id)); - if (*ret_val == -EINVAL) { - // object map is corrupt on-disk -- clear it and properly size it - // so future IO can keep the object map in sync - lderr(cct) << "object map corrupt on-disk: " << oid << dendl; - m_truncate_on_disk_object_map = true; - send_resize_invalidate(); - return nullptr; - } else if (*ret_val < 0) { - lderr(cct) << "failed to load object map: " << oid << dendl; - send_invalidate(); - return nullptr; - } - - if (m_on_disk_object_map.size() < m_object_count) { - lderr(cct) << "object map smaller than current object count: " - << m_on_disk_object_map.size() << " != " - << m_object_count << dendl; - send_resize_invalidate(); - return nullptr; - } - - ldout(cct, 20) << "refreshed object map: num_objs=" - << m_on_disk_object_map.size() << dendl; - if (m_on_disk_object_map.size() > m_object_count) { - // resize op might have been interrupted - ldout(cct, 1) << "object map larger than current object count: " - << m_on_disk_object_map.size() << " != " - << m_object_count << dendl; - } - - apply(); - return m_on_finish; -} - -template -void RefreshRequest::send_invalidate() { - CephContext *cct = m_image_ctx.cct; - ldout(cct, 10) << this << " " << __func__ << dendl; - - m_on_disk_object_map.clear(); - object_map::ResizeRequest::resize(&m_on_disk_object_map, m_object_count, - OBJECT_EXISTS); - - using klass = RefreshRequest; - Context *ctx = create_context_callback< - klass, &klass::handle_invalidate>(this); - InvalidateRequest *req = InvalidateRequest::create( - m_image_ctx, m_snap_id, false, ctx); - - RWLock::RLocker owner_locker(m_image_ctx.owner_lock); - RWLock::WLocker snap_locker(m_image_ctx.snap_lock); - req->send(); -} - -template -Context *RefreshRequest::handle_invalidate(int *ret_val) { - CephContext *cct = m_image_ctx.cct; - ldout(cct, 10) << this << " " << __func__ << ": r=" << *ret_val << dendl; - - assert(*ret_val == 0); - apply(); - return m_on_finish; -} - -template -void RefreshRequest::send_resize_invalidate() { - CephContext *cct = m_image_ctx.cct; - ldout(cct, 10) << this << " " << __func__ << dendl; - - m_on_disk_object_map.clear(); - object_map::ResizeRequest::resize(&m_on_disk_object_map, m_object_count, - OBJECT_EXISTS); - - using klass = RefreshRequest; - Context *ctx = create_context_callback< - klass, &klass::handle_resize_invalidate>(this); - InvalidateRequest *req = InvalidateRequest::create( - m_image_ctx, m_snap_id, false, ctx); - - RWLock::RLocker owner_locker(m_image_ctx.owner_lock); - RWLock::WLocker snap_locker(m_image_ctx.snap_lock); - req->send(); -} - -template -Context *RefreshRequest::handle_resize_invalidate(int *ret_val) { - CephContext *cct = m_image_ctx.cct; - ldout(cct, 10) << this << " " << __func__ << ": r=" << *ret_val << dendl; - - assert(*ret_val == 0); - send_resize(); - return nullptr; -} - -template -void RefreshRequest::send_resize() { - CephContext *cct = m_image_ctx.cct; - std::string oid(ObjectMap<>::object_map_name(m_image_ctx.id, m_snap_id)); - ldout(cct, 10) << this << " " << __func__ << ": oid=" << oid << dendl; - - librados::ObjectWriteOperation op; - if (m_snap_id == CEPH_NOSNAP) { - rados::cls::lock::assert_locked(&op, RBD_LOCK_NAME, LOCK_EXCLUSIVE, "", ""); - } - if (m_truncate_on_disk_object_map) { - op.truncate(0); - } - cls_client::object_map_resize(&op, m_object_count, OBJECT_NONEXISTENT); - - using klass = RefreshRequest; - librados::AioCompletion *rados_completion = - create_rados_callback(this); - int r = m_image_ctx.md_ctx.aio_operate(oid, rados_completion, &op); - assert(r == 0); - rados_completion->release(); -} - -template -Context *RefreshRequest::handle_resize(int *ret_val) { - CephContext *cct = m_image_ctx.cct; - ldout(cct, 10) << this << " " << __func__ << ": r=" << *ret_val << dendl; - - if (*ret_val < 0) { - lderr(cct) << "failed to adjust object map size: " << cpp_strerror(*ret_val) - << dendl; - *ret_val = 0; - } - apply(); - return m_on_finish; -} - -template -void RefreshRequest::send_invalidate_and_close() { - CephContext *cct = m_image_ctx.cct; - ldout(cct, 10) << this << " " << __func__ << dendl; - - using klass = RefreshRequest; - Context *ctx = create_context_callback< - klass, &klass::handle_invalidate_and_close>(this); - InvalidateRequest *req = InvalidateRequest::create( - m_image_ctx, m_snap_id, false, ctx); - - lderr(cct) << "object map too large: " << m_object_count << dendl; - RWLock::RLocker owner_locker(m_image_ctx.owner_lock); - RWLock::WLocker snap_locker(m_image_ctx.snap_lock); - req->send(); -} - -template -Context *RefreshRequest::handle_invalidate_and_close(int *ret_val) { - CephContext *cct = m_image_ctx.cct; - ldout(cct, 10) << this << " " << __func__ << ": r=" << *ret_val << dendl; - - assert(*ret_val == 0); - - *ret_val = -EFBIG; - m_object_map->clear(); - return m_on_finish; -} - -} // namespace object_map -} // namespace librbd - -template class librbd::object_map::RefreshRequest;