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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include "librbd/object_map/UnlockRequest.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::UnlockRequest: "
namespace librbd {
namespace object_map {
using util::create_rados_callback;
template <typename I>
UnlockRequest<I>::UnlockRequest(I &image_ctx, Context *on_finish)
: m_image_ctx(image_ctx), m_on_finish(on_finish) {
}
template <typename I>
void UnlockRequest<I>::send() {
send_unlock();
}
template <typename I>
void UnlockRequest<I>::send_unlock() {
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::unlock(&op, RBD_LOCK_NAME, "");
using klass = UnlockRequest<I>;
librados::AioCompletion *rados_completion =
create_rados_callback<klass, &klass::handle_unlock>(this);
int r = m_image_ctx.md_ctx.aio_operate(oid, rados_completion, &op);
ceph_assert(r == 0);
rados_completion->release();
}
template <typename I>
Context *UnlockRequest<I>::handle_unlock(int *ret_val) {
CephContext *cct = m_image_ctx.cct;
ldout(cct, 10) << this << " " << __func__ << ": r=" << *ret_val << dendl;
if (*ret_val < 0 && *ret_val != -ENOENT) {
lderr(m_image_ctx.cct) << "failed to release 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::UnlockRequest<librbd::ImageCtx>;
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