1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
2 // vim: ts=8 sw=2 smarttab
4 * Ceph - scalable distributed file system
6 * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
8 * This is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License version 2.1, as published by the Free Software
11 * Foundation. See file COPYING.
16 #include "ScatterLock.h"
19 #include "messages/MClientRequest.h"
20 #include "messages/MMDSSlaveRequest.h"
25 void MutationImpl::pin(MDSCacheObject *o)
27 if (pins.count(o) == 0) {
28 o->get(MDSCacheObject::PIN_REQUEST);
33 void MutationImpl::unpin(MDSCacheObject *o)
35 assert(pins.count(o));
36 o->put(MDSCacheObject::PIN_REQUEST);
40 void MutationImpl::set_stickydirs(CInode *in)
42 if (stickydirs.count(in) == 0) {
44 stickydirs.insert(in);
48 void MutationImpl::drop_pins()
50 for (set<MDSCacheObject*>::iterator it = pins.begin();
53 (*it)->put(MDSCacheObject::PIN_REQUEST);
57 void MutationImpl::start_locking(SimpleLock *lock, int target)
59 assert(locking == NULL);
60 pin(lock->get_parent());
62 locking_target_mds = target;
65 void MutationImpl::finish_locking(SimpleLock *lock)
67 assert(locking == lock);
69 locking_target_mds = -1;
74 bool MutationImpl::is_auth_pinned(MDSCacheObject *object) const
76 return auth_pins.count(object) || remote_auth_pins.count(object);
79 void MutationImpl::auth_pin(MDSCacheObject *object)
81 if (!is_auth_pinned(object)) {
82 object->auth_pin(this);
83 auth_pins.insert(object);
87 void MutationImpl::auth_unpin(MDSCacheObject *object)
89 assert(auth_pins.count(object));
90 object->auth_unpin(this);
91 auth_pins.erase(object);
94 void MutationImpl::drop_local_auth_pins()
96 for (set<MDSCacheObject*>::iterator it = auth_pins.begin();
97 it != auth_pins.end();
99 assert((*it)->is_auth());
100 (*it)->auth_unpin(this);
105 void MutationImpl::add_projected_inode(CInode *in)
107 projected_inodes.push_back(in);
110 void MutationImpl::pop_and_dirty_projected_inodes()
112 while (!projected_inodes.empty()) {
113 CInode *in = projected_inodes.front();
114 projected_inodes.pop_front();
115 in->pop_and_dirty_projected_inode(ls);
119 void MutationImpl::add_projected_fnode(CDir *dir)
121 projected_fnodes.push_back(dir);
124 void MutationImpl::pop_and_dirty_projected_fnodes()
126 while (!projected_fnodes.empty()) {
127 CDir *dir = projected_fnodes.front();
128 projected_fnodes.pop_front();
129 dir->pop_and_dirty_projected_fnode(ls);
133 void MutationImpl::add_updated_lock(ScatterLock *lock)
135 updated_locks.push_back(lock);
138 void MutationImpl::add_cow_inode(CInode *in)
141 dirty_cow_inodes.push_back(in);
144 void MutationImpl::add_cow_dentry(CDentry *dn)
147 dirty_cow_dentries.push_back(pair<CDentry*,version_t>(dn, dn->get_projected_version()));
150 void MutationImpl::apply()
152 pop_and_dirty_projected_inodes();
153 pop_and_dirty_projected_fnodes();
155 for (list<CInode*>::iterator p = dirty_cow_inodes.begin();
156 p != dirty_cow_inodes.end();
158 (*p)->_mark_dirty(ls);
159 for (list<pair<CDentry*,version_t> >::iterator p = dirty_cow_dentries.begin();
160 p != dirty_cow_dentries.end();
162 p->first->mark_dirty(p->second, ls);
164 for (list<ScatterLock*>::iterator p = updated_locks.begin();
165 p != updated_locks.end();
170 void MutationImpl::cleanup()
172 drop_local_auth_pins();
176 void MutationImpl::_dump_op_descriptor_unlocked(ostream& stream) const
178 stream << "Mutation";
183 MDRequestImpl::~MDRequestImpl()
186 client_request->put();
188 slave_request->put();
192 MDRequestImpl::More* MDRequestImpl::more()
199 bool MDRequestImpl::has_more() const
201 return _more != nullptr;
204 bool MDRequestImpl::has_witnesses()
206 return (_more != nullptr) && (!_more->witnessed.empty());
209 bool MDRequestImpl::slave_did_prepare()
211 return has_more() && more()->slave_commit;
214 bool MDRequestImpl::slave_rolling_back()
216 return has_more() && more()->slave_rolling_back;
219 bool MDRequestImpl::did_ino_allocation() const
221 return alloc_ino || used_prealloc_ino || prealloc_inos.size();
224 bool MDRequestImpl::freeze_auth_pin(CInode *inode)
226 assert(!more()->rename_inode || more()->rename_inode == inode);
227 more()->rename_inode = inode;
228 more()->is_freeze_authpin = true;
230 if (!inode->freeze_inode(1)) {
233 inode->freeze_auth_pin();
234 inode->unfreeze_inode();
238 void MDRequestImpl::unfreeze_auth_pin(bool clear_inode)
240 assert(more()->is_freeze_authpin);
241 CInode *inode = more()->rename_inode;
242 if (inode->is_frozen_auth_pin())
243 inode->unfreeze_auth_pin();
245 inode->unfreeze_inode();
246 more()->is_freeze_authpin = false;
248 more()->rename_inode = NULL;
251 void MDRequestImpl::set_remote_frozen_auth_pin(CInode *inode)
253 more()->rename_inode = inode;
254 more()->is_remote_frozen_authpin = true;
257 void MDRequestImpl::set_ambiguous_auth(CInode *inode)
259 assert(!more()->rename_inode || more()->rename_inode == inode);
260 assert(!more()->is_ambiguous_auth);
262 inode->set_ambiguous_auth();
263 more()->rename_inode = inode;
264 more()->is_ambiguous_auth = true;
267 void MDRequestImpl::clear_ambiguous_auth()
269 CInode *inode = more()->rename_inode;
270 assert(inode && more()->is_ambiguous_auth);
271 inode->clear_ambiguous_auth();
272 more()->is_ambiguous_auth = false;
275 bool MDRequestImpl::can_auth_pin(MDSCacheObject *object)
277 return object->can_auth_pin() ||
278 (is_auth_pinned(object) && has_more() &&
279 more()->is_freeze_authpin &&
280 more()->rename_inode == object);
283 void MDRequestImpl::drop_local_auth_pins()
285 if (has_more() && more()->is_freeze_authpin)
286 unfreeze_auth_pin(true);
287 MutationImpl::drop_local_auth_pins();
290 const filepath& MDRequestImpl::get_filepath()
293 return client_request->get_filepath();
294 return more()->filepath1;
297 const filepath& MDRequestImpl::get_filepath2()
300 return client_request->get_filepath2();
301 return more()->filepath2;
304 void MDRequestImpl::set_filepath(const filepath& fp)
306 assert(!client_request);
307 more()->filepath1 = fp;
310 void MDRequestImpl::set_filepath2(const filepath& fp)
312 assert(!client_request);
313 more()->filepath2 = fp;
316 bool MDRequestImpl::is_replay() const
318 return client_request ? client_request->is_replay() : false;
321 void MDRequestImpl::print(ostream &out) const
323 out << "request(" << reqid;
324 //if (request) out << " " << *request;
325 if (is_slave()) out << " slave_to mds." << slave_to_mds;
326 if (client_request) out << " cr=" << client_request;
327 if (slave_request) out << " sr=" << slave_request;
331 void MDRequestImpl::dump(Formatter *f) const
336 void MDRequestImpl::_dump(Formatter *f) const
338 f->dump_string("flag_point", state_string());
339 f->dump_stream("reqid") << reqid;
341 if (client_request) {
342 f->dump_string("op_type", "client_request");
343 f->open_object_section("client_info");
344 f->dump_stream("client") << client_request->get_orig_source();
345 f->dump_int("tid", client_request->get_tid());
346 f->close_section(); // client_info
347 } else if (is_slave() && slave_request) { // replies go to an existing mdr
348 f->dump_string("op_type", "slave_request");
349 f->open_object_section("master_info");
350 f->dump_stream("master") << slave_request->get_orig_source();
351 f->close_section(); // master_info
353 f->open_object_section("request_info");
354 f->dump_int("attempt", slave_request->get_attempt());
355 f->dump_string("op_type",
356 slave_request->get_opname(slave_request->get_op()));
357 f->dump_int("lock_type", slave_request->get_lock_type());
358 f->dump_stream("object_info") << slave_request->get_object_info();
359 f->dump_stream("srcdnpath") << slave_request->srcdnpath;
360 f->dump_stream("destdnpath") << slave_request->destdnpath;
361 f->dump_stream("witnesses") << slave_request->witnesses;
362 f->dump_bool("has_inode_export",
363 slave_request->inode_export.length() != 0);
364 f->dump_int("inode_export_v", slave_request->inode_export_v);
365 f->dump_bool("has_srci_replica",
366 slave_request->srci_replica.length() != 0);
367 f->dump_stream("op_stamp") << slave_request->op_stamp;
368 f->close_section(); // request_info
370 else if (internal_op != -1) { // internal request
371 f->dump_string("op_type", "internal_op");
372 f->dump_int("internal_op", internal_op);
373 f->dump_string("op_name", ceph_mds_op_name(internal_op));
376 f->dump_string("op_type", "no_available_op_found");
380 f->open_array_section("events");
381 Mutex::Locker l(lock);
382 for (auto& i : events) {
383 f->dump_object("event", i);
385 f->close_section(); // events
389 void MDRequestImpl::_dump_op_descriptor_unlocked(ostream& stream) const
391 if (client_request) {
392 client_request->print(stream);
393 } else if (slave_request) {
394 slave_request->print(stream);
395 } else if (internal_op >= 0) {
396 stream << "internal op " << ceph_mds_op_name(internal_op) << ":" << reqid;
398 // drat, it's triggered by a slave request, but we don't have a message
400 stream << "rejoin:" << reqid;