1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
2 // vim: ts=8 sw=2 smarttab
4 #include "librbd/operation/SnapshotLimitRequest.h"
5 #include "common/dout.h"
6 #include "common/errno.h"
7 #include "librbd/ImageCtx.h"
9 #define dout_subsys ceph_subsys_rbd
11 #define dout_prefix *_dout << "librbd::SnapshotLimitRequest: "
17 SnapshotLimitRequest<I>::SnapshotLimitRequest(I &image_ctx,
20 : Request<I>(image_ctx, on_finish), m_snap_limit(limit) {
24 void SnapshotLimitRequest<I>::send_op() {
29 bool SnapshotLimitRequest<I>::should_complete(int r) {
30 I &image_ctx = this->m_image_ctx;
31 CephContext *cct = image_ctx.cct;
32 ldout(cct, 5) << this << " " << __func__ << "r=" << r << dendl;
35 lderr(cct) << "encountered error: " << cpp_strerror(r) << dendl;
41 void SnapshotLimitRequest<I>::send_limit_snaps() {
42 I &image_ctx = this->m_image_ctx;
43 assert(image_ctx.owner_lock.is_locked());
45 CephContext *cct = image_ctx.cct;
46 ldout(cct, 5) << this << " " << __func__ << dendl;
49 RWLock::RLocker md_locker(image_ctx.md_lock);
50 RWLock::RLocker snap_locker(image_ctx.snap_lock);
52 librados::ObjectWriteOperation op;
53 cls_client::snapshot_set_limit(&op, m_snap_limit);
55 librados::AioCompletion *rados_completion =
56 this->create_callback_completion();
57 int r = image_ctx.md_ctx.aio_operate(image_ctx.header_oid, rados_completion,
60 rados_completion->release();
64 } // namespace operation
67 template class librbd::operation::SnapshotLimitRequest<librbd::ImageCtx>;