X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fsrc%2Flibrbd%2Fobject_map%2FLockRequest.cc;fp=src%2Fceph%2Fsrc%2Flibrbd%2Fobject_map%2FLockRequest.cc;h=0000000000000000000000000000000000000000;hb=7da45d65be36d36b880cc55c5036e96c24b53f00;hp=3f97bef37c493b72976ff82cd4002d9492abc760;hpb=691462d09d0987b47e112d6ee8740375df3c51b2;p=stor4nfv.git diff --git a/src/ceph/src/librbd/object_map/LockRequest.cc b/src/ceph/src/librbd/object_map/LockRequest.cc deleted file mode 100644 index 3f97bef..0000000 --- a/src/ceph/src/librbd/object_map/LockRequest.cc +++ /dev/null @@ -1,157 +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/LockRequest.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/Utils.h" - -#define dout_subsys ceph_subsys_rbd -#undef dout_prefix -#define dout_prefix *_dout << "librbd::object_map::LockRequest: " - -namespace librbd { -namespace object_map { - -using util::create_rados_callback; - -template -LockRequest::LockRequest(I &image_ctx, Context *on_finish) - : m_image_ctx(image_ctx), m_on_finish(on_finish), m_broke_lock(false) { -} - -template -void LockRequest::send() { - send_lock(); -} - -template -void LockRequest::send_lock() { - CephContext *cct = m_image_ctx.cct; - std::string oid(ObjectMap<>::object_map_name(m_image_ctx.id, CEPH_NOSNAP)); - ldout(cct, 10) << this << " " << __func__ << ": oid=" << oid << dendl; - - librados::ObjectWriteOperation op; - rados::cls::lock::lock(&op, RBD_LOCK_NAME, LOCK_EXCLUSIVE, "", "", "", - utime_t(), 0); - - using klass = LockRequest; - 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 *LockRequest::handle_lock(int *ret_val) { - CephContext *cct = m_image_ctx.cct; - ldout(cct, 10) << this << " " << __func__ << ": r=" << *ret_val << dendl; - - if (*ret_val == 0) { - return m_on_finish; - } else if (*ret_val == -EEXIST) { - // already locked by myself - *ret_val = 0; - return m_on_finish; - } else if (m_broke_lock || *ret_val != -EBUSY) { - lderr(cct) << "failed to lock object map: " << cpp_strerror(*ret_val) - << dendl; - *ret_val = 0; - return m_on_finish; - } - - send_get_lock_info(); - return nullptr; -} - -template -void LockRequest::send_get_lock_info() { - CephContext *cct = m_image_ctx.cct; - std::string oid(ObjectMap<>::object_map_name(m_image_ctx.id, CEPH_NOSNAP)); - ldout(cct, 10) << this << " " << __func__ << ": oid=" << oid << dendl; - - librados::ObjectReadOperation op; - rados::cls::lock::get_lock_info_start(&op, RBD_LOCK_NAME); - - using klass = LockRequest; - 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 *LockRequest::handle_get_lock_info(int *ret_val) { - CephContext *cct = m_image_ctx.cct; - ldout(cct, 10) << this << " " << __func__ << ": r=" << *ret_val << dendl; - - if (*ret_val == -ENOENT) { - send_lock(); - return nullptr; - } - - ClsLockType lock_type; - std::string lock_tag; - if (*ret_val == 0) { - bufferlist::iterator it = m_out_bl.begin(); - *ret_val = rados::cls::lock::get_lock_info_finish(&it, &m_lockers, - &lock_type, &lock_tag); - } - if (*ret_val < 0) { - lderr(cct) << "failed to list object map locks: " << cpp_strerror(*ret_val) - << dendl; - *ret_val = 0; - return m_on_finish; - } - - send_break_locks(); - return nullptr; -} - -template -void LockRequest::send_break_locks() { - CephContext *cct = m_image_ctx.cct; - std::string oid(ObjectMap<>::object_map_name(m_image_ctx.id, CEPH_NOSNAP)); - ldout(cct, 10) << this << " " << __func__ << ": oid=" << oid << ", " - << "num_lockers=" << m_lockers.size() << dendl; - - librados::ObjectWriteOperation op; - for (auto &locker : m_lockers) { - rados::cls::lock::break_lock(&op, RBD_LOCK_NAME, locker.first.cookie, - locker.first.locker); - } - - using klass = LockRequest; - 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 *LockRequest::handle_break_locks(int *ret_val) { - CephContext *cct = m_image_ctx.cct; - ldout(cct, 10) << this << " " << __func__ << ": r=" << *ret_val << dendl; - - m_broke_lock = true; - if (*ret_val == 0 || *ret_val == -ENOENT) { - send_lock(); - return nullptr; - } - - lderr(cct) << "failed to break object map lock: " << cpp_strerror(*ret_val) - << dendl; - *ret_val = 0; - return m_on_finish; -} - -} // namespace object_map -} // namespace librbd - -template class librbd::object_map::LockRequest;