X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fsrc%2Flibrbd%2Foperation%2FSnapshotProtectRequest.cc;fp=src%2Fceph%2Fsrc%2Flibrbd%2Foperation%2FSnapshotProtectRequest.cc;h=0000000000000000000000000000000000000000;hb=7da45d65be36d36b880cc55c5036e96c24b53f00;hp=199432196ef199fd579771402c24e9e4831927f9;hpb=691462d09d0987b47e112d6ee8740375df3c51b2;p=stor4nfv.git diff --git a/src/ceph/src/librbd/operation/SnapshotProtectRequest.cc b/src/ceph/src/librbd/operation/SnapshotProtectRequest.cc deleted file mode 100644 index 1994321..0000000 --- a/src/ceph/src/librbd/operation/SnapshotProtectRequest.cc +++ /dev/null @@ -1,120 +0,0 @@ -// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- -// vim: ts=8 sw=2 smarttab - -#include "librbd/operation/SnapshotProtectRequest.h" -#include "common/dout.h" -#include "common/errno.h" -#include "librbd/ImageCtx.h" - -#define dout_subsys ceph_subsys_rbd -#undef dout_prefix -#define dout_prefix *_dout << "librbd::SnapshotProtectRequest: " - -namespace librbd { -namespace operation { - -namespace { - -template -std::ostream& operator<<(std::ostream& os, - const typename SnapshotProtectRequest::State& state) { - switch(state) { - case SnapshotProtectRequest::STATE_PROTECT_SNAP: - os << "PROTECT_SNAP"; - break; - } - return os; -} - -} // anonymous namespace - -template -SnapshotProtectRequest::SnapshotProtectRequest(I &image_ctx, - Context *on_finish, - const cls::rbd::SnapshotNamespace &snap_namespace, - const std::string &snap_name) - : Request(image_ctx, on_finish), m_snap_namespace(snap_namespace), m_snap_name(snap_name) { -} - -template -void SnapshotProtectRequest::send_op() { - send_protect_snap(); -} - -template -bool SnapshotProtectRequest::should_complete(int r) { - I &image_ctx = this->m_image_ctx; - CephContext *cct = image_ctx.cct; - ldout(cct, 5) << this << " " << __func__ << ": state=" << m_state << ", " - << "r=" << r << dendl; - if (r < 0) { - if (r == -EBUSY) { - ldout(cct, 1) << "snapshot is already protected" << dendl; - } else { - lderr(cct) << "encountered error: " << cpp_strerror(r) << dendl; - } - } - return true; -} - -template -void SnapshotProtectRequest::send_protect_snap() { - I &image_ctx = this->m_image_ctx; - assert(image_ctx.owner_lock.is_locked()); - - CephContext *cct = image_ctx.cct; - ldout(cct, 5) << this << " " << __func__ << dendl; - - m_state = STATE_PROTECT_SNAP; - - int r = verify_and_send_protect_snap(); - if (r < 0) { - this->async_complete(r); - return; - } -} - -template -int SnapshotProtectRequest::verify_and_send_protect_snap() { - I &image_ctx = this->m_image_ctx; - RWLock::RLocker md_locker(image_ctx.md_lock); - RWLock::RLocker snap_locker(image_ctx.snap_lock); - - CephContext *cct = image_ctx.cct; - if ((image_ctx.features & RBD_FEATURE_LAYERING) == 0) { - lderr(cct) << "image must support layering" << dendl; - return -ENOSYS; - } - - uint64_t snap_id = image_ctx.get_snap_id(m_snap_namespace, m_snap_name); - if (snap_id == CEPH_NOSNAP) { - return -ENOENT; - } - - bool is_protected; - int r = image_ctx.is_snap_protected(snap_id, &is_protected); - if (r < 0) { - return r; - } - - if (is_protected) { - return -EBUSY; - } - - librados::ObjectWriteOperation op; - cls_client::set_protection_status(&op, snap_id, - RBD_PROTECTION_STATUS_PROTECTED); - - librados::AioCompletion *rados_completion = - this->create_callback_completion(); - r = image_ctx.md_ctx.aio_operate(image_ctx.header_oid, rados_completion, - &op); - assert(r == 0); - rados_completion->release(); - return 0; -} - -} // namespace operation -} // namespace librbd - -template class librbd::operation::SnapshotProtectRequest;