--- /dev/null
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
+
+#include "Mutation.h"
+#include "ScatterLock.h"
+#include "CDir.h"
+
+#include "messages/MClientRequest.h"
+#include "messages/MMDSSlaveRequest.h"
+
+
+// MutationImpl
+
+void MutationImpl::pin(MDSCacheObject *o)
+{
+ if (pins.count(o) == 0) {
+ o->get(MDSCacheObject::PIN_REQUEST);
+ pins.insert(o);
+ }
+}
+
+void MutationImpl::unpin(MDSCacheObject *o)
+{
+ assert(pins.count(o));
+ o->put(MDSCacheObject::PIN_REQUEST);
+ pins.erase(o);
+}
+
+void MutationImpl::set_stickydirs(CInode *in)
+{
+ if (stickydirs.count(in) == 0) {
+ in->get_stickydirs();
+ stickydirs.insert(in);
+ }
+}
+
+void MutationImpl::drop_pins()
+{
+ for (set<MDSCacheObject*>::iterator it = pins.begin();
+ it != pins.end();
+ ++it)
+ (*it)->put(MDSCacheObject::PIN_REQUEST);
+ pins.clear();
+}
+
+void MutationImpl::start_locking(SimpleLock *lock, int target)
+{
+ assert(locking == NULL);
+ pin(lock->get_parent());
+ locking = lock;
+ locking_target_mds = target;
+}
+
+void MutationImpl::finish_locking(SimpleLock *lock)
+{
+ assert(locking == lock);
+ locking = NULL;
+ locking_target_mds = -1;
+}
+
+
+// auth pins
+bool MutationImpl::is_auth_pinned(MDSCacheObject *object) const
+{
+ return auth_pins.count(object) || remote_auth_pins.count(object);
+}
+
+void MutationImpl::auth_pin(MDSCacheObject *object)
+{
+ if (!is_auth_pinned(object)) {
+ object->auth_pin(this);
+ auth_pins.insert(object);
+ }
+}
+
+void MutationImpl::auth_unpin(MDSCacheObject *object)
+{
+ assert(auth_pins.count(object));
+ object->auth_unpin(this);
+ auth_pins.erase(object);
+}
+
+void MutationImpl::drop_local_auth_pins()
+{
+ for (set<MDSCacheObject*>::iterator it = auth_pins.begin();
+ it != auth_pins.end();
+ ++it) {
+ assert((*it)->is_auth());
+ (*it)->auth_unpin(this);
+ }
+ auth_pins.clear();
+}
+
+void MutationImpl::add_projected_inode(CInode *in)
+{
+ projected_inodes.push_back(in);
+}
+
+void MutationImpl::pop_and_dirty_projected_inodes()
+{
+ while (!projected_inodes.empty()) {
+ CInode *in = projected_inodes.front();
+ projected_inodes.pop_front();
+ in->pop_and_dirty_projected_inode(ls);
+ }
+}
+
+void MutationImpl::add_projected_fnode(CDir *dir)
+{
+ projected_fnodes.push_back(dir);
+}
+
+void MutationImpl::pop_and_dirty_projected_fnodes()
+{
+ while (!projected_fnodes.empty()) {
+ CDir *dir = projected_fnodes.front();
+ projected_fnodes.pop_front();
+ dir->pop_and_dirty_projected_fnode(ls);
+ }
+}
+
+void MutationImpl::add_updated_lock(ScatterLock *lock)
+{
+ updated_locks.push_back(lock);
+}
+
+void MutationImpl::add_cow_inode(CInode *in)
+{
+ pin(in);
+ dirty_cow_inodes.push_back(in);
+}
+
+void MutationImpl::add_cow_dentry(CDentry *dn)
+{
+ pin(dn);
+ dirty_cow_dentries.push_back(pair<CDentry*,version_t>(dn, dn->get_projected_version()));
+}
+
+void MutationImpl::apply()
+{
+ pop_and_dirty_projected_inodes();
+ pop_and_dirty_projected_fnodes();
+
+ for (list<CInode*>::iterator p = dirty_cow_inodes.begin();
+ p != dirty_cow_inodes.end();
+ ++p)
+ (*p)->_mark_dirty(ls);
+ for (list<pair<CDentry*,version_t> >::iterator p = dirty_cow_dentries.begin();
+ p != dirty_cow_dentries.end();
+ ++p)
+ p->first->mark_dirty(p->second, ls);
+
+ for (list<ScatterLock*>::iterator p = updated_locks.begin();
+ p != updated_locks.end();
+ ++p)
+ (*p)->mark_dirty();
+}
+
+void MutationImpl::cleanup()
+{
+ drop_local_auth_pins();
+ drop_pins();
+}
+
+void MutationImpl::_dump_op_descriptor_unlocked(ostream& stream) const
+{
+ stream << "Mutation";
+}
+
+// MDRequestImpl
+
+MDRequestImpl::~MDRequestImpl()
+{
+ if (client_request)
+ client_request->put();
+ if (slave_request)
+ slave_request->put();
+ delete _more;
+}
+
+MDRequestImpl::More* MDRequestImpl::more()
+{
+ if (!_more)
+ _more = new More();
+ return _more;
+}
+
+bool MDRequestImpl::has_more() const
+{
+ return _more != nullptr;
+}
+
+bool MDRequestImpl::has_witnesses()
+{
+ return (_more != nullptr) && (!_more->witnessed.empty());
+}
+
+bool MDRequestImpl::slave_did_prepare()
+{
+ return has_more() && more()->slave_commit;
+}
+
+bool MDRequestImpl::slave_rolling_back()
+{
+ return has_more() && more()->slave_rolling_back;
+}
+
+bool MDRequestImpl::did_ino_allocation() const
+{
+ return alloc_ino || used_prealloc_ino || prealloc_inos.size();
+}
+
+bool MDRequestImpl::freeze_auth_pin(CInode *inode)
+{
+ assert(!more()->rename_inode || more()->rename_inode == inode);
+ more()->rename_inode = inode;
+ more()->is_freeze_authpin = true;
+ auth_pin(inode);
+ if (!inode->freeze_inode(1)) {
+ return false;
+ }
+ inode->freeze_auth_pin();
+ inode->unfreeze_inode();
+ return true;
+}
+
+void MDRequestImpl::unfreeze_auth_pin(bool clear_inode)
+{
+ assert(more()->is_freeze_authpin);
+ CInode *inode = more()->rename_inode;
+ if (inode->is_frozen_auth_pin())
+ inode->unfreeze_auth_pin();
+ else
+ inode->unfreeze_inode();
+ more()->is_freeze_authpin = false;
+ if (clear_inode)
+ more()->rename_inode = NULL;
+}
+
+void MDRequestImpl::set_remote_frozen_auth_pin(CInode *inode)
+{
+ more()->rename_inode = inode;
+ more()->is_remote_frozen_authpin = true;
+}
+
+void MDRequestImpl::set_ambiguous_auth(CInode *inode)
+{
+ assert(!more()->rename_inode || more()->rename_inode == inode);
+ assert(!more()->is_ambiguous_auth);
+
+ inode->set_ambiguous_auth();
+ more()->rename_inode = inode;
+ more()->is_ambiguous_auth = true;
+}
+
+void MDRequestImpl::clear_ambiguous_auth()
+{
+ CInode *inode = more()->rename_inode;
+ assert(inode && more()->is_ambiguous_auth);
+ inode->clear_ambiguous_auth();
+ more()->is_ambiguous_auth = false;
+}
+
+bool MDRequestImpl::can_auth_pin(MDSCacheObject *object)
+{
+ return object->can_auth_pin() ||
+ (is_auth_pinned(object) && has_more() &&
+ more()->is_freeze_authpin &&
+ more()->rename_inode == object);
+}
+
+void MDRequestImpl::drop_local_auth_pins()
+{
+ if (has_more() && more()->is_freeze_authpin)
+ unfreeze_auth_pin(true);
+ MutationImpl::drop_local_auth_pins();
+}
+
+const filepath& MDRequestImpl::get_filepath()
+{
+ if (client_request)
+ return client_request->get_filepath();
+ return more()->filepath1;
+}
+
+const filepath& MDRequestImpl::get_filepath2()
+{
+ if (client_request)
+ return client_request->get_filepath2();
+ return more()->filepath2;
+}
+
+void MDRequestImpl::set_filepath(const filepath& fp)
+{
+ assert(!client_request);
+ more()->filepath1 = fp;
+}
+
+void MDRequestImpl::set_filepath2(const filepath& fp)
+{
+ assert(!client_request);
+ more()->filepath2 = fp;
+}
+
+bool MDRequestImpl::is_replay() const
+{
+ return client_request ? client_request->is_replay() : false;
+}
+
+void MDRequestImpl::print(ostream &out) const
+{
+ out << "request(" << reqid;
+ //if (request) out << " " << *request;
+ if (is_slave()) out << " slave_to mds." << slave_to_mds;
+ if (client_request) out << " cr=" << client_request;
+ if (slave_request) out << " sr=" << slave_request;
+ out << ")";
+}
+
+void MDRequestImpl::dump(Formatter *f) const
+{
+ _dump(f);
+}
+
+void MDRequestImpl::_dump(Formatter *f) const
+{
+ f->dump_string("flag_point", state_string());
+ f->dump_stream("reqid") << reqid;
+ {
+ if (client_request) {
+ f->dump_string("op_type", "client_request");
+ f->open_object_section("client_info");
+ f->dump_stream("client") << client_request->get_orig_source();
+ f->dump_int("tid", client_request->get_tid());
+ f->close_section(); // client_info
+ } else if (is_slave() && slave_request) { // replies go to an existing mdr
+ f->dump_string("op_type", "slave_request");
+ f->open_object_section("master_info");
+ f->dump_stream("master") << slave_request->get_orig_source();
+ f->close_section(); // master_info
+
+ f->open_object_section("request_info");
+ f->dump_int("attempt", slave_request->get_attempt());
+ f->dump_string("op_type",
+ slave_request->get_opname(slave_request->get_op()));
+ f->dump_int("lock_type", slave_request->get_lock_type());
+ f->dump_stream("object_info") << slave_request->get_object_info();
+ f->dump_stream("srcdnpath") << slave_request->srcdnpath;
+ f->dump_stream("destdnpath") << slave_request->destdnpath;
+ f->dump_stream("witnesses") << slave_request->witnesses;
+ f->dump_bool("has_inode_export",
+ slave_request->inode_export.length() != 0);
+ f->dump_int("inode_export_v", slave_request->inode_export_v);
+ f->dump_bool("has_srci_replica",
+ slave_request->srci_replica.length() != 0);
+ f->dump_stream("op_stamp") << slave_request->op_stamp;
+ f->close_section(); // request_info
+ }
+ else if (internal_op != -1) { // internal request
+ f->dump_string("op_type", "internal_op");
+ f->dump_int("internal_op", internal_op);
+ f->dump_string("op_name", ceph_mds_op_name(internal_op));
+ }
+ else {
+ f->dump_string("op_type", "no_available_op_found");
+ }
+ }
+ {
+ f->open_array_section("events");
+ Mutex::Locker l(lock);
+ for (auto& i : events) {
+ f->dump_object("event", i);
+ }
+ f->close_section(); // events
+ }
+}
+
+void MDRequestImpl::_dump_op_descriptor_unlocked(ostream& stream) const
+{
+ if (client_request) {
+ client_request->print(stream);
+ } else if (slave_request) {
+ slave_request->print(stream);
+ } else if (internal_op >= 0) {
+ stream << "internal op " << ceph_mds_op_name(internal_op) << ":" << reqid;
+ } else {
+ // drat, it's triggered by a slave request, but we don't have a message
+ // FIXME
+ stream << "rejoin:" << reqid;
+ }
+}
Code Review / stor4nfv.git / blobdiff