--- /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 "include/int_types.h"
+#include "common/errno.h"
+
+#include <string>
+#include <stdio.h>
+
+#include "CInode.h"
+#include "CDir.h"
+#include "CDentry.h"
+
+#include "MDSRank.h"
+#include "MDCache.h"
+#include "MDLog.h"
+#include "Locker.h"
+#include "Mutation.h"
+
+#include "events/EUpdate.h"
+
+#include "osdc/Objecter.h"
+
+#include "snap.h"
+
+#include "LogSegment.h"
+
+#include "common/Clock.h"
+
+#include "messages/MLock.h"
+#include "messages/MClientCaps.h"
+
+#include "common/config.h"
+#include "global/global_context.h"
+#include "include/assert.h"
+
+#include "mds/MDSContinuation.h"
+#include "mds/InoTable.h"
+
+#define dout_context g_ceph_context
+#define dout_subsys ceph_subsys_mds
+#undef dout_prefix
+#define dout_prefix *_dout << "mds." << mdcache->mds->get_nodeid() << ".cache.ino(" << inode.ino << ") "
+
+
+class CInodeIOContext : public MDSIOContextBase
+{
+protected:
+ CInode *in;
+ MDSRank *get_mds() override {return in->mdcache->mds;}
+public:
+ explicit CInodeIOContext(CInode *in_) : in(in_) {
+ assert(in != NULL);
+ }
+};
+
+
+LockType CInode::versionlock_type(CEPH_LOCK_IVERSION);
+LockType CInode::authlock_type(CEPH_LOCK_IAUTH);
+LockType CInode::linklock_type(CEPH_LOCK_ILINK);
+LockType CInode::dirfragtreelock_type(CEPH_LOCK_IDFT);
+LockType CInode::filelock_type(CEPH_LOCK_IFILE);
+LockType CInode::xattrlock_type(CEPH_LOCK_IXATTR);
+LockType CInode::snaplock_type(CEPH_LOCK_ISNAP);
+LockType CInode::nestlock_type(CEPH_LOCK_INEST);
+LockType CInode::flocklock_type(CEPH_LOCK_IFLOCK);
+LockType CInode::policylock_type(CEPH_LOCK_IPOLICY);
+
+//int cinode_pins[CINODE_NUM_PINS]; // counts
+ostream& CInode::print_db_line_prefix(ostream& out)
+{
+ return out << ceph_clock_now() << " mds." << mdcache->mds->get_nodeid() << ".cache.ino(" << inode.ino << ") ";
+}
+
+/*
+ * write caps and lock ids
+ */
+struct cinode_lock_info_t cinode_lock_info[] = {
+ { CEPH_LOCK_IFILE, CEPH_CAP_ANY_FILE_WR },
+ { CEPH_LOCK_IAUTH, CEPH_CAP_AUTH_EXCL },
+ { CEPH_LOCK_ILINK, CEPH_CAP_LINK_EXCL },
+ { CEPH_LOCK_IXATTR, CEPH_CAP_XATTR_EXCL },
+};
+int num_cinode_locks = sizeof(cinode_lock_info) / sizeof(cinode_lock_info[0]);
+
+
+
+ostream& operator<<(ostream& out, const CInode& in)
+{
+ string path;
+ in.make_path_string(path, true);
+
+ out << "[inode " << in.inode.ino;
+ out << " ["
+ << (in.is_multiversion() ? "...":"")
+ << in.first << "," << in.last << "]";
+ out << " " << path << (in.is_dir() ? "/":"");
+
+ if (in.is_auth()) {
+ out << " auth";
+ if (in.is_replicated())
+ out << in.get_replicas();
+ } else {
+ mds_authority_t a = in.authority();
+ out << " rep@" << a.first;
+ if (a.second != CDIR_AUTH_UNKNOWN)
+ out << "," << a.second;
+ out << "." << in.get_replica_nonce();
+ }
+
+ if (in.is_symlink())
+ out << " symlink='" << in.symlink << "'";
+ if (in.is_dir() && !in.dirfragtree.empty())
+ out << " " << in.dirfragtree;
+
+ out << " v" << in.get_version();
+ if (in.get_projected_version() > in.get_version())
+ out << " pv" << in.get_projected_version();
+
+ if (in.is_auth_pinned()) {
+ out << " ap=" << in.get_num_auth_pins() << "+" << in.get_num_nested_auth_pins();
+#ifdef MDS_AUTHPIN_SET
+ out << "(" << in.auth_pin_set << ")";
+#endif
+ }
+
+ if (in.snaprealm)
+ out << " snaprealm=" << in.snaprealm;
+
+ if (in.state_test(CInode::STATE_AMBIGUOUSAUTH)) out << " AMBIGAUTH";
+ if (in.state_test(CInode::STATE_NEEDSRECOVER)) out << " needsrecover";
+ if (in.state_test(CInode::STATE_RECOVERING)) out << " recovering";
+ if (in.state_test(CInode::STATE_DIRTYPARENT)) out << " dirtyparent";
+ if (in.state_test(CInode::STATE_MISSINGOBJS)) out << " missingobjs";
+ if (in.is_freezing_inode()) out << " FREEZING=" << in.auth_pin_freeze_allowance;
+ if (in.is_frozen_inode()) out << " FROZEN";
+ if (in.is_frozen_auth_pin()) out << " FROZEN_AUTHPIN";
+
+ const inode_t *pi = in.get_projected_inode();
+ if (pi->is_truncating())
+ out << " truncating(" << pi->truncate_from << " to " << pi->truncate_size << ")";
+
+ if (in.inode.is_dir()) {
+ out << " " << in.inode.dirstat;
+ if (g_conf->mds_debug_scatterstat && in.is_projected()) {
+ const inode_t *pi = in.get_projected_inode();
+ out << "->" << pi->dirstat;
+ }
+ } else {
+ out << " s=" << in.inode.size;
+ if (in.inode.nlink != 1)
+ out << " nl=" << in.inode.nlink;
+ }
+
+ // rstat
+ out << " " << in.inode.rstat;
+ if (!(in.inode.rstat == in.inode.accounted_rstat))
+ out << "/" << in.inode.accounted_rstat;
+ if (g_conf->mds_debug_scatterstat && in.is_projected()) {
+ const inode_t *pi = in.get_projected_inode();
+ out << "->" << pi->rstat;
+ if (!(pi->rstat == pi->accounted_rstat))
+ out << "/" << pi->accounted_rstat;
+ }
+
+ if (!in.client_need_snapflush.empty())
+ out << " need_snapflush=" << in.client_need_snapflush;
+
+
+ // locks
+ if (!in.authlock.is_sync_and_unlocked())
+ out << " " << in.authlock;
+ if (!in.linklock.is_sync_and_unlocked())
+ out << " " << in.linklock;
+ if (in.inode.is_dir()) {
+ if (!in.dirfragtreelock.is_sync_and_unlocked())
+ out << " " << in.dirfragtreelock;
+ if (!in.snaplock.is_sync_and_unlocked())
+ out << " " << in.snaplock;
+ if (!in.nestlock.is_sync_and_unlocked())
+ out << " " << in.nestlock;
+ if (!in.policylock.is_sync_and_unlocked())
+ out << " " << in.policylock;
+ } else {
+ if (!in.flocklock.is_sync_and_unlocked())
+ out << " " << in.flocklock;
+ }
+ if (!in.filelock.is_sync_and_unlocked())
+ out << " " << in.filelock;
+ if (!in.xattrlock.is_sync_and_unlocked())
+ out << " " << in.xattrlock;
+ if (!in.versionlock.is_sync_and_unlocked())
+ out << " " << in.versionlock;
+
+ // hack: spit out crap on which clients have caps
+ if (in.inode.client_ranges.size())
+ out << " cr=" << in.inode.client_ranges;
+
+ if (!in.get_client_caps().empty()) {
+ out << " caps={";
+ for (map<client_t,Capability*>::const_iterator it = in.get_client_caps().begin();
+ it != in.get_client_caps().end();
+ ++it) {
+ if (it != in.get_client_caps().begin()) out << ",";
+ out << it->first << "="
+ << ccap_string(it->second->pending());
+ if (it->second->issued() != it->second->pending())
+ out << "/" << ccap_string(it->second->issued());
+ out << "/" << ccap_string(it->second->wanted())
+ << "@" << it->second->get_last_sent();
+ }
+ out << "}";
+ if (in.get_loner() >= 0 || in.get_wanted_loner() >= 0) {
+ out << ",l=" << in.get_loner();
+ if (in.get_loner() != in.get_wanted_loner())
+ out << "(" << in.get_wanted_loner() << ")";
+ }
+ }
+ if (!in.get_mds_caps_wanted().empty()) {
+ out << " mcw={";
+ for (compact_map<int,int>::const_iterator p = in.get_mds_caps_wanted().begin();
+ p != in.get_mds_caps_wanted().end();
+ ++p) {
+ if (p != in.get_mds_caps_wanted().begin())
+ out << ',';
+ out << p->first << '=' << ccap_string(p->second);
+ }
+ out << '}';
+ }
+
+ if (in.get_num_ref()) {
+ out << " |";
+ in.print_pin_set(out);
+ }
+
+ if (in.inode.export_pin != MDS_RANK_NONE) {
+ out << " export_pin=" << in.inode.export_pin;
+ }
+
+ out << " " << ∈
+ out << "]";
+ return out;
+}
+
+ostream& operator<<(ostream& out, const CInode::scrub_stamp_info_t& si)
+{
+ out << "{scrub_start_version: " << si.scrub_start_version
+ << ", scrub_start_stamp: " << si.scrub_start_stamp
+ << ", last_scrub_version: " << si.last_scrub_version
+ << ", last_scrub_stamp: " << si.last_scrub_stamp;
+ return out;
+}
+
+
+
+void CInode::print(ostream& out)
+{
+ out << *this;
+}
+
+
+
+void CInode::add_need_snapflush(CInode *snapin, snapid_t snapid, client_t client)
+{
+ dout(10) << "add_need_snapflush client." << client << " snapid " << snapid << " on " << snapin << dendl;
+
+ if (client_need_snapflush.empty()) {
+ get(CInode::PIN_NEEDSNAPFLUSH);
+
+ // FIXME: this is non-optimal, as we'll block freezes/migrations for potentially
+ // long periods waiting for clients to flush their snaps.
+ auth_pin(this); // pin head inode...
+ }
+
+ set<client_t>& clients = client_need_snapflush[snapid];
+ if (clients.empty())
+ snapin->auth_pin(this); // ...and pin snapped/old inode!
+
+ clients.insert(client);
+}
+
+void CInode::remove_need_snapflush(CInode *snapin, snapid_t snapid, client_t client)
+{
+ dout(10) << "remove_need_snapflush client." << client << " snapid " << snapid << " on " << snapin << dendl;
+ compact_map<snapid_t, std::set<client_t> >::iterator p = client_need_snapflush.find(snapid);
+ if (p == client_need_snapflush.end()) {
+ dout(10) << " snapid not found" << dendl;
+ return;
+ }
+ if (!p->second.count(client)) {
+ dout(10) << " client not found" << dendl;
+ return;
+ }
+ p->second.erase(client);
+ if (p->second.empty()) {
+ client_need_snapflush.erase(p);
+ snapin->auth_unpin(this);
+
+ if (client_need_snapflush.empty()) {
+ put(CInode::PIN_NEEDSNAPFLUSH);
+ auth_unpin(this);
+ }
+ }
+}
+
+bool CInode::split_need_snapflush(CInode *cowin, CInode *in)
+{
+ dout(10) << "split_need_snapflush [" << cowin->first << "," << cowin->last << "] for " << *cowin << dendl;
+ bool need_flush = false;
+ for (compact_map<snapid_t, set<client_t> >::iterator p = client_need_snapflush.lower_bound(cowin->first);
+ p != client_need_snapflush.end() && p->first < in->first; ) {
+ compact_map<snapid_t, set<client_t> >::iterator q = p;
+ ++p;
+ assert(!q->second.empty());
+ if (cowin->last >= q->first) {
+ cowin->auth_pin(this);
+ need_flush = true;
+ } else
+ client_need_snapflush.erase(q);
+ in->auth_unpin(this);
+ }
+ return need_flush;
+}
+
+void CInode::mark_dirty_rstat()
+{
+ if (!state_test(STATE_DIRTYRSTAT)) {
+ dout(10) << "mark_dirty_rstat" << dendl;
+ state_set(STATE_DIRTYRSTAT);
+ get(PIN_DIRTYRSTAT);
+ CDentry *pdn = get_projected_parent_dn();
+ if (pdn->is_auth()) {
+ CDir *pdir = pdn->dir;
+ pdir->dirty_rstat_inodes.push_back(&dirty_rstat_item);
+ mdcache->mds->locker->mark_updated_scatterlock(&pdir->inode->nestlock);
+ } else {
+ // under cross-MDS rename.
+ // DIRTYRSTAT flag will get cleared when rename finishes
+ assert(state_test(STATE_AMBIGUOUSAUTH));
+ }
+ }
+}
+void CInode::clear_dirty_rstat()
+{
+ if (state_test(STATE_DIRTYRSTAT)) {
+ dout(10) << "clear_dirty_rstat" << dendl;
+ state_clear(STATE_DIRTYRSTAT);
+ put(PIN_DIRTYRSTAT);
+ dirty_rstat_item.remove_myself();
+ }
+}
+
+inode_t *CInode::project_inode(map<string,bufferptr> *px)
+{
+ if (projected_nodes.empty()) {
+ projected_nodes.push_back(new projected_inode_t(new inode_t(inode)));
+ if (px)
+ *px = xattrs;
+ } else {
+ projected_nodes.push_back(new projected_inode_t(
+ new inode_t(*projected_nodes.back()->inode)));
+ if (px)
+ *px = *get_projected_xattrs();
+ }
+
+ projected_inode_t &pi = *projected_nodes.back();
+
+ if (px) {
+ pi.xattrs = px;
+ ++num_projected_xattrs;
+ }
+
+ if (scrub_infop && scrub_infop->last_scrub_dirty) {
+ pi.inode->last_scrub_stamp = scrub_infop->last_scrub_stamp;
+ pi.inode->last_scrub_version = scrub_infop->last_scrub_version;
+ scrub_infop->last_scrub_dirty = false;
+ scrub_maybe_delete_info();
+ }
+ dout(15) << "project_inode " << pi.inode << dendl;
+ return pi.inode;
+}
+
+void CInode::pop_and_dirty_projected_inode(LogSegment *ls)
+{
+ assert(!projected_nodes.empty());
+ dout(15) << "pop_and_dirty_projected_inode " << projected_nodes.front()->inode
+ << " v" << projected_nodes.front()->inode->version << dendl;
+ int64_t old_pool = inode.layout.pool_id;
+
+ mark_dirty(projected_nodes.front()->inode->version, ls);
+ inode = *projected_nodes.front()->inode;
+
+ if (inode.is_backtrace_updated())
+ _mark_dirty_parent(ls, old_pool != inode.layout.pool_id);
+
+ map<string,bufferptr> *px = projected_nodes.front()->xattrs;
+ if (px) {
+ --num_projected_xattrs;
+ xattrs = *px;
+ delete px;
+ }
+
+ if (projected_nodes.front()->snapnode) {
+ pop_projected_snaprealm(projected_nodes.front()->snapnode);
+ --num_projected_srnodes;
+ }
+
+ delete projected_nodes.front()->inode;
+ delete projected_nodes.front();
+
+ projected_nodes.pop_front();
+}
+
+sr_t *CInode::project_snaprealm(snapid_t snapid)
+{
+ sr_t *cur_srnode = get_projected_srnode();
+ sr_t *new_srnode;
+
+ if (cur_srnode) {
+ new_srnode = new sr_t(*cur_srnode);
+ } else {
+ new_srnode = new sr_t();
+ new_srnode->created = snapid;
+ new_srnode->current_parent_since = get_oldest_snap();
+ }
+ dout(10) << "project_snaprealm " << new_srnode << dendl;
+ projected_nodes.back()->snapnode = new_srnode;
+ ++num_projected_srnodes;
+ return new_srnode;
+}
+
+/* if newparent != parent, add parent to past_parents
+ if parent DNE, we need to find what the parent actually is and fill that in */
+void CInode::project_past_snaprealm_parent(SnapRealm *newparent)
+{
+ sr_t *new_snap = project_snaprealm();
+ SnapRealm *oldparent;
+ if (!snaprealm) {
+ oldparent = find_snaprealm();
+ new_snap->seq = oldparent->get_newest_seq();
+ }
+ else
+ oldparent = snaprealm->parent;
+
+ if (newparent != oldparent) {
+ snapid_t oldparentseq = oldparent->get_newest_seq();
+ if (oldparentseq + 1 > new_snap->current_parent_since) {
+ new_snap->past_parents[oldparentseq].ino = oldparent->inode->ino();
+ new_snap->past_parents[oldparentseq].first = new_snap->current_parent_since;
+ }
+ new_snap->current_parent_since = MAX(oldparentseq, newparent->get_last_created()) + 1;
+ }
+}
+
+void CInode::pop_projected_snaprealm(sr_t *next_snaprealm)
+{
+ assert(next_snaprealm);
+ dout(10) << "pop_projected_snaprealm " << next_snaprealm
+ << " seq" << next_snaprealm->seq << dendl;
+ bool invalidate_cached_snaps = false;
+ if (!snaprealm) {
+ open_snaprealm();
+ } else if (next_snaprealm->past_parents.size() !=
+ snaprealm->srnode.past_parents.size()) {
+ invalidate_cached_snaps = true;
+ // re-open past parents
+ snaprealm->_close_parents();
+
+ dout(10) << " realm " << *snaprealm << " past_parents " << snaprealm->srnode.past_parents
+ << " -> " << next_snaprealm->past_parents << dendl;
+ }
+ snaprealm->srnode = *next_snaprealm;
+ delete next_snaprealm;
+
+ // we should be able to open these up (or have them already be open).
+ bool ok = snaprealm->_open_parents(NULL);
+ assert(ok);
+
+ if (invalidate_cached_snaps)
+ snaprealm->invalidate_cached_snaps();
+
+ if (snaprealm->parent)
+ dout(10) << " realm " << *snaprealm << " parent " << *snaprealm->parent << dendl;
+}
+
+
+// ====== CInode =======
+
+// dirfrags
+
+__u32 InodeStoreBase::hash_dentry_name(const string &dn)
+{
+ int which = inode.dir_layout.dl_dir_hash;
+ if (!which)
+ which = CEPH_STR_HASH_LINUX;
+ assert(ceph_str_hash_valid(which));
+ return ceph_str_hash(which, dn.data(), dn.length());
+}
+
+frag_t InodeStoreBase::pick_dirfrag(const string& dn)
+{
+ if (dirfragtree.empty())
+ return frag_t(); // avoid the string hash if we can.
+
+ __u32 h = hash_dentry_name(dn);
+ return dirfragtree[h];
+}
+
+bool CInode::get_dirfrags_under(frag_t fg, list<CDir*>& ls)
+{
+ bool all = true;
+ list<frag_t> fglist;
+ dirfragtree.get_leaves_under(fg, fglist);
+ for (list<frag_t>::iterator p = fglist.begin(); p != fglist.end(); ++p)
+ if (dirfrags.count(*p))
+ ls.push_back(dirfrags[*p]);
+ else
+ all = false;
+
+ if (all)
+ return all;
+
+ fragtree_t tmpdft;
+ tmpdft.force_to_leaf(g_ceph_context, fg);
+ for (compact_map<frag_t,CDir*>::iterator p = dirfrags.begin(); p != dirfrags.end(); ++p) {
+ tmpdft.force_to_leaf(g_ceph_context, p->first);
+ if (fg.contains(p->first) && !dirfragtree.is_leaf(p->first))
+ ls.push_back(p->second);
+ }
+
+ all = true;
+ tmpdft.get_leaves_under(fg, fglist);
+ for (list<frag_t>::iterator p = fglist.begin(); p != fglist.end(); ++p)
+ if (!dirfrags.count(*p)) {
+ all = false;
+ break;
+ }
+
+ return all;
+}
+
+void CInode::verify_dirfrags()
+{
+ bool bad = false;
+ for (compact_map<frag_t,CDir*>::iterator p = dirfrags.begin(); p != dirfrags.end(); ++p) {
+ if (!dirfragtree.is_leaf(p->first)) {
+ dout(0) << "have open dirfrag " << p->first << " but not leaf in " << dirfragtree
+ << ": " << *p->second << dendl;
+ bad = true;
+ }
+ }
+ assert(!bad);
+}
+
+void CInode::force_dirfrags()
+{
+ bool bad = false;
+ for (compact_map<frag_t,CDir*>::iterator p = dirfrags.begin(); p != dirfrags.end(); ++p) {
+ if (!dirfragtree.is_leaf(p->first)) {
+ dout(0) << "have open dirfrag " << p->first << " but not leaf in " << dirfragtree
+ << ": " << *p->second << dendl;
+ bad = true;
+ }
+ }
+
+ if (bad) {
+ list<frag_t> leaves;
+ dirfragtree.get_leaves(leaves);
+ for (list<frag_t>::iterator p = leaves.begin(); p != leaves.end(); ++p)
+ mdcache->get_force_dirfrag(dirfrag_t(ino(),*p), true);
+ }
+
+ verify_dirfrags();
+}
+
+CDir *CInode::get_approx_dirfrag(frag_t fg)
+{
+ CDir *dir = get_dirfrag(fg);
+ if (dir) return dir;
+
+ // find a child?
+ list<CDir*> ls;
+ get_dirfrags_under(fg, ls);
+ if (!ls.empty())
+ return ls.front();
+
+ // try parents?
+ while (fg.bits() > 0) {
+ fg = fg.parent();
+ dir = get_dirfrag(fg);
+ if (dir) return dir;
+ }
+ return NULL;
+}
+
+void CInode::get_dirfrags(list<CDir*>& ls)
+{
+ // all dirfrags
+ for (compact_map<frag_t,CDir*>::iterator p = dirfrags.begin();
+ p != dirfrags.end();
+ ++p)
+ ls.push_back(p->second);
+}
+void CInode::get_nested_dirfrags(list<CDir*>& ls)
+{
+ // dirfrags in same subtree
+ for (compact_map<frag_t,CDir*>::iterator p = dirfrags.begin();
+ p != dirfrags.end();
+ ++p)
+ if (!p->second->is_subtree_root())
+ ls.push_back(p->second);
+}
+void CInode::get_subtree_dirfrags(list<CDir*>& ls)
+{
+ // dirfrags that are roots of new subtrees
+ for (compact_map<frag_t,CDir*>::iterator p = dirfrags.begin();
+ p != dirfrags.end();
+ ++p)
+ if (p->second->is_subtree_root())
+ ls.push_back(p->second);
+}
+
+
+CDir *CInode::get_or_open_dirfrag(MDCache *mdcache, frag_t fg)
+{
+ assert(is_dir());
+
+ // have it?
+ CDir *dir = get_dirfrag(fg);
+ if (!dir) {
+ // create it.
+ assert(is_auth() || mdcache->mds->is_any_replay());
+ dir = new CDir(this, fg, mdcache, is_auth());
+ add_dirfrag(dir);
+ }
+ return dir;
+}
+
+CDir *CInode::add_dirfrag(CDir *dir)
+{
+ assert(dirfrags.count(dir->dirfrag().frag) == 0);
+ dirfrags[dir->dirfrag().frag] = dir;
+
+ if (stickydir_ref > 0) {
+ dir->state_set(CDir::STATE_STICKY);
+ dir->get(CDir::PIN_STICKY);
+ }
+
+ maybe_export_pin();
+
+ return dir;
+}
+
+void CInode::close_dirfrag(frag_t fg)
+{
+ dout(14) << "close_dirfrag " << fg << dendl;
+ assert(dirfrags.count(fg));
+
+ CDir *dir = dirfrags[fg];
+ dir->remove_null_dentries();
+
+ // clear dirty flag
+ if (dir->is_dirty())
+ dir->mark_clean();
+
+ if (stickydir_ref > 0) {
+ dir->state_clear(CDir::STATE_STICKY);
+ dir->put(CDir::PIN_STICKY);
+ }
+
+ // dump any remaining dentries, for debugging purposes
+ for (CDir::map_t::iterator p = dir->items.begin();
+ p != dir->items.end();
+ ++p)
+ dout(14) << "close_dirfrag LEFTOVER dn " << *p->second << dendl;
+
+ assert(dir->get_num_ref() == 0);
+ delete dir;
+ dirfrags.erase(fg);
+}
+
+void CInode::close_dirfrags()
+{
+ while (!dirfrags.empty())
+ close_dirfrag(dirfrags.begin()->first);
+}
+
+bool CInode::has_subtree_root_dirfrag(int auth)
+{
+ for (compact_map<frag_t,CDir*>::iterator p = dirfrags.begin();
+ p != dirfrags.end();
+ ++p)
+ if (p->second->is_subtree_root() &&
+ (auth == -1 || p->second->dir_auth.first == auth))
+ return true;
+ return false;
+}
+
+bool CInode::has_subtree_or_exporting_dirfrag()
+{
+ for (compact_map<frag_t,CDir*>::iterator p = dirfrags.begin();
+ p != dirfrags.end();
+ ++p)
+ if (p->second->is_subtree_root() ||
+ p->second->state_test(CDir::STATE_EXPORTING))
+ return true;
+ return false;
+}
+
+void CInode::get_stickydirs()
+{
+ if (stickydir_ref == 0) {
+ get(PIN_STICKYDIRS);
+ for (compact_map<frag_t,CDir*>::iterator p = dirfrags.begin();
+ p != dirfrags.end();
+ ++p) {
+ p->second->state_set(CDir::STATE_STICKY);
+ p->second->get(CDir::PIN_STICKY);
+ }
+ }
+ stickydir_ref++;
+}
+
+void CInode::put_stickydirs()
+{
+ assert(stickydir_ref > 0);
+ stickydir_ref--;
+ if (stickydir_ref == 0) {
+ put(PIN_STICKYDIRS);
+ for (compact_map<frag_t,CDir*>::iterator p = dirfrags.begin();
+ p != dirfrags.end();
+ ++p) {
+ p->second->state_clear(CDir::STATE_STICKY);
+ p->second->put(CDir::PIN_STICKY);
+ }
+ }
+}
+
+
+
+
+
+// pins
+
+void CInode::first_get()
+{
+ // pin my dentry?
+ if (parent)
+ parent->get(CDentry::PIN_INODEPIN);
+}
+
+void CInode::last_put()
+{
+ // unpin my dentry?
+ if (parent)
+ parent->put(CDentry::PIN_INODEPIN);
+}
+
+void CInode::_put()
+{
+ if (get_num_ref() == (int)is_dirty() + (int)is_dirty_parent())
+ mdcache->maybe_eval_stray(this, true);
+}
+
+void CInode::add_remote_parent(CDentry *p)
+{
+ if (remote_parents.empty())
+ get(PIN_REMOTEPARENT);
+ remote_parents.insert(p);
+}
+void CInode::remove_remote_parent(CDentry *p)
+{
+ remote_parents.erase(p);
+ if (remote_parents.empty())
+ put(PIN_REMOTEPARENT);
+}
+
+
+
+
+CDir *CInode::get_parent_dir()
+{
+ if (parent)
+ return parent->dir;
+ return NULL;
+}
+CDir *CInode::get_projected_parent_dir()
+{
+ CDentry *p = get_projected_parent_dn();
+ if (p)
+ return p->dir;
+ return NULL;
+}
+CInode *CInode::get_parent_inode()
+{
+ if (parent)
+ return parent->dir->inode;
+ return NULL;
+}
+
+bool CInode::is_projected_ancestor_of(CInode *other)
+{
+ while (other) {
+ if (other == this)
+ return true;
+ if (!other->get_projected_parent_dn())
+ break;
+ other = other->get_projected_parent_dn()->get_dir()->get_inode();
+ }
+ return false;
+}
+
+/*
+ * Because a non-directory inode may have multiple links, the use_parent
+ * argument allows selecting which parent to use for path construction. This
+ * argument is only meaningful for the final component (i.e. the first of the
+ * nested calls) because directories cannot have multiple hard links. If
+ * use_parent is NULL and projected is true, the primary parent's projected
+ * inode is used all the way up the path chain. Otherwise the primary parent
+ * stable inode is used.
+ */
+void CInode::make_path_string(string& s, bool projected, const CDentry *use_parent) const
+{
+ if (!use_parent) {
+ use_parent = projected ? get_projected_parent_dn() : parent;
+ }
+
+ if (use_parent) {
+ use_parent->make_path_string(s, projected);
+ } else if (is_root()) {
+ s = "";
+ } else if (is_mdsdir()) {
+ char t[40];
+ uint64_t eino(ino());
+ eino -= MDS_INO_MDSDIR_OFFSET;
+ snprintf(t, sizeof(t), "~mds%" PRId64, eino);
+ s = t;
+ } else {
+ char n[40];
+ uint64_t eino(ino());
+ snprintf(n, sizeof(n), "#%" PRIx64, eino);
+ s += n;
+ }
+}
+
+void CInode::make_path(filepath& fp, bool projected) const
+{
+ const CDentry *use_parent = projected ? get_projected_parent_dn() : parent;
+ if (use_parent) {
+ assert(!is_base());
+ use_parent->make_path(fp, projected);
+ } else {
+ fp = filepath(ino());
+ }
+}
+
+void CInode::name_stray_dentry(string& dname)
+{
+ char s[20];
+ snprintf(s, sizeof(s), "%llx", (unsigned long long)inode.ino.val);
+ dname = s;
+}
+
+version_t CInode::pre_dirty()
+{
+ version_t pv;
+ CDentry* _cdentry = get_projected_parent_dn();
+ if (_cdentry) {
+ pv = _cdentry->pre_dirty(get_projected_version());
+ dout(10) << "pre_dirty " << pv << " (current v " << inode.version << ")" << dendl;
+ } else {
+ assert(is_base());
+ pv = get_projected_version() + 1;
+ }
+ // force update backtrace for old format inode (see inode_t::decode)
+ if (inode.backtrace_version == 0 && !projected_nodes.empty()) {
+ inode_t *pi = projected_nodes.back()->inode;
+ if (pi->backtrace_version == 0)
+ pi->update_backtrace(pv);
+ }
+ return pv;
+}
+
+void CInode::_mark_dirty(LogSegment *ls)
+{
+ if (!state_test(STATE_DIRTY)) {
+ state_set(STATE_DIRTY);
+ get(PIN_DIRTY);
+ assert(ls);
+ }
+
+ // move myself to this segment's dirty list
+ if (ls)
+ ls->dirty_inodes.push_back(&item_dirty);
+}
+
+void CInode::mark_dirty(version_t pv, LogSegment *ls) {
+
+ dout(10) << "mark_dirty " << *this << dendl;
+
+ /*
+ NOTE: I may already be dirty, but this fn _still_ needs to be called so that
+ the directory is (perhaps newly) dirtied, and so that parent_dir_version is
+ updated below.
+ */
+
+ // only auth can get dirty. "dirty" async data in replicas is relative to
+ // filelock state, not the dirty flag.
+ assert(is_auth());
+
+ // touch my private version
+ assert(inode.version < pv);
+ inode.version = pv;
+ _mark_dirty(ls);
+
+ // mark dentry too
+ if (parent)
+ parent->mark_dirty(pv, ls);
+}
+
+
+void CInode::mark_clean()
+{
+ dout(10) << " mark_clean " << *this << dendl;
+ if (state_test(STATE_DIRTY)) {
+ state_clear(STATE_DIRTY);
+ put(PIN_DIRTY);
+
+ // remove myself from ls dirty list
+ item_dirty.remove_myself();
+ }
+}
+
+
+// --------------
+// per-inode storage
+// (currently for root inode only)
+
+struct C_IO_Inode_Stored : public CInodeIOContext {
+ version_t version;
+ Context *fin;
+ C_IO_Inode_Stored(CInode *i, version_t v, Context *f) : CInodeIOContext(i), version(v), fin(f) {}
+ void finish(int r) override {
+ in->_stored(r, version, fin);
+ }
+};
+
+object_t InodeStoreBase::get_object_name(inodeno_t ino, frag_t fg, const char *suffix)
+{
+ char n[60];
+ snprintf(n, sizeof(n), "%llx.%08llx%s", (long long unsigned)ino, (long long unsigned)fg, suffix ? suffix : "");
+ return object_t(n);
+}
+
+void CInode::store(MDSInternalContextBase *fin)
+{
+ dout(10) << "store " << get_version() << dendl;
+ assert(is_base());
+
+ if (snaprealm)
+ purge_stale_snap_data(snaprealm->get_snaps());
+
+ // encode
+ bufferlist bl;
+ string magic = CEPH_FS_ONDISK_MAGIC;
+ ::encode(magic, bl);
+ encode_store(bl, mdcache->mds->mdsmap->get_up_features());
+
+ // write it.
+ SnapContext snapc;
+ ObjectOperation m;
+ m.write_full(bl);
+
+ object_t oid = CInode::get_object_name(ino(), frag_t(), ".inode");
+ object_locator_t oloc(mdcache->mds->mdsmap->get_metadata_pool());
+
+ Context *newfin =
+ new C_OnFinisher(new C_IO_Inode_Stored(this, get_version(), fin),
+ mdcache->mds->finisher);
+ mdcache->mds->objecter->mutate(oid, oloc, m, snapc,
+ ceph::real_clock::now(), 0,
+ newfin);
+}
+
+void CInode::_stored(int r, version_t v, Context *fin)
+{
+ if (r < 0) {
+ dout(1) << "store error " << r << " v " << v << " on " << *this << dendl;
+ mdcache->mds->clog->error() << "failed to store inode " << ino()
+ << " object: " << cpp_strerror(r);
+ mdcache->mds->handle_write_error(r);
+ fin->complete(r);
+ return;
+ }
+
+ dout(10) << "_stored " << v << " on " << *this << dendl;
+ if (v == get_projected_version())
+ mark_clean();
+
+ fin->complete(0);
+}
+
+void CInode::flush(MDSInternalContextBase *fin)
+{
+ dout(10) << "flush " << *this << dendl;
+ assert(is_auth() && can_auth_pin());
+
+ MDSGatherBuilder gather(g_ceph_context);
+
+ if (is_dirty_parent()) {
+ store_backtrace(gather.new_sub());
+ }
+ if (is_dirty()) {
+ if (is_base()) {
+ store(gather.new_sub());
+ } else {
+ parent->dir->commit(0, gather.new_sub());
+ }
+ }
+
+ if (gather.has_subs()) {
+ gather.set_finisher(fin);
+ gather.activate();
+ } else {
+ fin->complete(0);
+ }
+}
+
+struct C_IO_Inode_Fetched : public CInodeIOContext {
+ bufferlist bl, bl2;
+ Context *fin;
+ C_IO_Inode_Fetched(CInode *i, Context *f) : CInodeIOContext(i), fin(f) {}
+ void finish(int r) override {
+ // Ignore 'r', because we fetch from two places, so r is usually ENOENT
+ in->_fetched(bl, bl2, fin);
+ }
+};
+
+void CInode::fetch(MDSInternalContextBase *fin)
+{
+ dout(10) << "fetch" << dendl;
+
+ C_IO_Inode_Fetched *c = new C_IO_Inode_Fetched(this, fin);
+ C_GatherBuilder gather(g_ceph_context, new C_OnFinisher(c, mdcache->mds->finisher));
+
+ object_t oid = CInode::get_object_name(ino(), frag_t(), "");
+ object_locator_t oloc(mdcache->mds->mdsmap->get_metadata_pool());
+
+ // Old on-disk format: inode stored in xattr of a dirfrag
+ ObjectOperation rd;
+ rd.getxattr("inode", &c->bl, NULL);
+ mdcache->mds->objecter->read(oid, oloc, rd, CEPH_NOSNAP, (bufferlist*)NULL, 0, gather.new_sub());
+
+ // Current on-disk format: inode stored in a .inode object
+ object_t oid2 = CInode::get_object_name(ino(), frag_t(), ".inode");
+ mdcache->mds->objecter->read(oid2, oloc, 0, 0, CEPH_NOSNAP, &c->bl2, 0, gather.new_sub());
+
+ gather.activate();
+}
+
+void CInode::_fetched(bufferlist& bl, bufferlist& bl2, Context *fin)
+{
+ dout(10) << "_fetched got " << bl.length() << " and " << bl2.length() << dendl;
+ bufferlist::iterator p;
+ if (bl2.length()) {
+ p = bl2.begin();
+ } else if (bl.length()) {
+ p = bl.begin();
+ } else {
+ derr << "No data while reading inode " << ino() << dendl;
+ fin->complete(-ENOENT);
+ return;
+ }
+
+ // Attempt decode
+ try {
+ string magic;
+ ::decode(magic, p);
+ dout(10) << " magic is '" << magic << "' (expecting '"
+ << CEPH_FS_ONDISK_MAGIC << "')" << dendl;
+ if (magic != CEPH_FS_ONDISK_MAGIC) {
+ dout(0) << "on disk magic '" << magic << "' != my magic '" << CEPH_FS_ONDISK_MAGIC
+ << "'" << dendl;
+ fin->complete(-EINVAL);
+ } else {
+ decode_store(p);
+ dout(10) << "_fetched " << *this << dendl;
+ fin->complete(0);
+ }
+ } catch (buffer::error &err) {
+ derr << "Corrupt inode " << ino() << ": " << err << dendl;
+ fin->complete(-EINVAL);
+ return;
+ }
+}
+
+void CInode::build_backtrace(int64_t pool, inode_backtrace_t& bt)
+{
+ bt.ino = inode.ino;
+ bt.ancestors.clear();
+ bt.pool = pool;
+
+ CInode *in = this;
+ CDentry *pdn = get_parent_dn();
+ while (pdn) {
+ CInode *diri = pdn->get_dir()->get_inode();
+ bt.ancestors.push_back(inode_backpointer_t(diri->ino(), pdn->name, in->inode.version));
+ in = diri;
+ pdn = in->get_parent_dn();
+ }
+ for (compact_set<int64_t>::iterator i = inode.old_pools.begin();
+ i != inode.old_pools.end();
+ ++i) {
+ // don't add our own pool id to old_pools to avoid looping (e.g. setlayout 0, 1, 0)
+ if (*i != pool)
+ bt.old_pools.insert(*i);
+ }
+}
+
+struct C_IO_Inode_StoredBacktrace : public CInodeIOContext {
+ version_t version;
+ Context *fin;
+ C_IO_Inode_StoredBacktrace(CInode *i, version_t v, Context *f) : CInodeIOContext(i), version(v), fin(f) {}
+ void finish(int r) override {
+ in->_stored_backtrace(r, version, fin);
+ }
+};
+
+void CInode::store_backtrace(MDSInternalContextBase *fin, int op_prio)
+{
+ dout(10) << "store_backtrace on " << *this << dendl;
+ assert(is_dirty_parent());
+
+ if (op_prio < 0)
+ op_prio = CEPH_MSG_PRIO_DEFAULT;
+
+ auth_pin(this);
+
+ const int64_t pool = get_backtrace_pool();
+ inode_backtrace_t bt;
+ build_backtrace(pool, bt);
+ bufferlist parent_bl;
+ ::encode(bt, parent_bl);
+
+ ObjectOperation op;
+ op.priority = op_prio;
+ op.create(false);
+ op.setxattr("parent", parent_bl);
+
+ bufferlist layout_bl;
+ ::encode(inode.layout, layout_bl, mdcache->mds->mdsmap->get_up_features());
+ op.setxattr("layout", layout_bl);
+
+ SnapContext snapc;
+ object_t oid = get_object_name(ino(), frag_t(), "");
+ object_locator_t oloc(pool);
+ Context *fin2 = new C_OnFinisher(
+ new C_IO_Inode_StoredBacktrace(this, inode.backtrace_version, fin),
+ mdcache->mds->finisher);
+
+ if (!state_test(STATE_DIRTYPOOL) || inode.old_pools.empty()) {
+ dout(20) << __func__ << ": no dirtypool or no old pools" << dendl;
+ mdcache->mds->objecter->mutate(oid, oloc, op, snapc,
+ ceph::real_clock::now(),
+ 0, fin2);
+ return;
+ }
+
+ C_GatherBuilder gather(g_ceph_context, fin2);
+ mdcache->mds->objecter->mutate(oid, oloc, op, snapc,
+ ceph::real_clock::now(),
+ 0, gather.new_sub());
+
+ // In the case where DIRTYPOOL is set, we update all old pools backtraces
+ // such that anyone reading them will see the new pool ID in
+ // inode_backtrace_t::pool and go read everything else from there.
+ for (compact_set<int64_t>::iterator p = inode.old_pools.begin();
+ p != inode.old_pools.end();
+ ++p) {
+ if (*p == pool)
+ continue;
+
+ dout(20) << __func__ << ": updating old pool " << *p << dendl;
+
+ ObjectOperation op;
+ op.priority = op_prio;
+ op.create(false);
+ op.setxattr("parent", parent_bl);
+
+ object_locator_t oloc(*p);
+ mdcache->mds->objecter->mutate(oid, oloc, op, snapc,
+ ceph::real_clock::now(),
+ 0, gather.new_sub());
+ }
+ gather.activate();
+}
+
+void CInode::_stored_backtrace(int r, version_t v, Context *fin)
+{
+ if (r == -ENOENT) {
+ const int64_t pool = get_backtrace_pool();
+ bool exists = mdcache->mds->objecter->with_osdmap(
+ [pool](const OSDMap &osd_map) {
+ return osd_map.have_pg_pool(pool);
+ });
+
+ // This ENOENT is because the pool doesn't exist (the user deleted it
+ // out from under us), so the backtrace can never be written, so pretend
+ // to succeed so that the user can proceed to e.g. delete the file.
+ if (!exists) {
+ dout(4) << "store_backtrace got ENOENT: a data pool was deleted "
+ "beneath us!" << dendl;
+ r = 0;
+ }
+ }
+
+ if (r < 0) {
+ dout(1) << "store backtrace error " << r << " v " << v << dendl;
+ mdcache->mds->clog->error() << "failed to store backtrace on ino "
+ << ino() << " object"
+ << ", pool " << get_backtrace_pool()
+ << ", errno " << r;
+ mdcache->mds->handle_write_error(r);
+ if (fin)
+ fin->complete(r);
+ return;
+ }
+
+ dout(10) << "_stored_backtrace v " << v << dendl;
+
+ auth_unpin(this);
+ if (v == inode.backtrace_version)
+ clear_dirty_parent();
+ if (fin)
+ fin->complete(0);
+}
+
+void CInode::fetch_backtrace(Context *fin, bufferlist *backtrace)
+{
+ mdcache->fetch_backtrace(inode.ino, get_backtrace_pool(), *backtrace, fin);
+}
+
+void CInode::_mark_dirty_parent(LogSegment *ls, bool dirty_pool)
+{
+ if (!state_test(STATE_DIRTYPARENT)) {
+ dout(10) << "mark_dirty_parent" << dendl;
+ state_set(STATE_DIRTYPARENT);
+ get(PIN_DIRTYPARENT);
+ assert(ls);
+ }
+ if (dirty_pool)
+ state_set(STATE_DIRTYPOOL);
+ if (ls)
+ ls->dirty_parent_inodes.push_back(&item_dirty_parent);
+}
+
+void CInode::clear_dirty_parent()
+{
+ if (state_test(STATE_DIRTYPARENT)) {
+ dout(10) << "clear_dirty_parent" << dendl;
+ state_clear(STATE_DIRTYPARENT);
+ state_clear(STATE_DIRTYPOOL);
+ put(PIN_DIRTYPARENT);
+ item_dirty_parent.remove_myself();
+ }
+}
+
+void CInode::verify_diri_backtrace(bufferlist &bl, int err)
+{
+ if (is_base() || is_dirty_parent() || !is_auth())
+ return;
+
+ dout(10) << "verify_diri_backtrace" << dendl;
+
+ if (err == 0) {
+ inode_backtrace_t backtrace;
+ ::decode(backtrace, bl);
+ CDentry *pdn = get_parent_dn();
+ if (backtrace.ancestors.empty() ||
+ backtrace.ancestors[0].dname != pdn->name ||
+ backtrace.ancestors[0].dirino != pdn->get_dir()->ino())
+ err = -EINVAL;
+ }
+
+ if (err) {
+ MDSRank *mds = mdcache->mds;
+ mds->clog->error() << "bad backtrace on directory inode " << ino();
+ assert(!"bad backtrace" == (g_conf->mds_verify_backtrace > 1));
+
+ _mark_dirty_parent(mds->mdlog->get_current_segment(), false);
+ mds->mdlog->flush();
+ }
+}
+
+// ------------------
+// parent dir
+
+
+void InodeStoreBase::encode_bare(bufferlist &bl, uint64_t features,
+ const bufferlist *snap_blob) const
+{
+ ::encode(inode, bl, features);
+ if (is_symlink())
+ ::encode(symlink, bl);
+ ::encode(dirfragtree, bl);
+ ::encode(xattrs, bl);
+ if (snap_blob)
+ ::encode(*snap_blob, bl);
+ else
+ ::encode(bufferlist(), bl);
+ ::encode(old_inodes, bl, features);
+ ::encode(oldest_snap, bl);
+ ::encode(damage_flags, bl);
+}
+
+void InodeStoreBase::encode(bufferlist &bl, uint64_t features,
+ const bufferlist *snap_blob) const
+{
+ ENCODE_START(6, 4, bl);
+ encode_bare(bl, features, snap_blob);
+ ENCODE_FINISH(bl);
+}
+
+void CInode::encode_store(bufferlist& bl, uint64_t features)
+{
+ bufferlist snap_blob;
+ encode_snap_blob(snap_blob);
+ InodeStoreBase::encode(bl, mdcache->mds->mdsmap->get_up_features(),
+ &snap_blob);
+}
+
+void InodeStoreBase::decode_bare(bufferlist::iterator &bl,
+ bufferlist& snap_blob, __u8 struct_v)
+{
+ ::decode(inode, bl);
+ if (is_symlink())
+ ::decode(symlink, bl);
+ ::decode(dirfragtree, bl);
+ ::decode(xattrs, bl);
+ ::decode(snap_blob, bl);
+
+ ::decode(old_inodes, bl);
+ if (struct_v == 2 && inode.is_dir()) {
+ bool default_layout_exists;
+ ::decode(default_layout_exists, bl);
+ if (default_layout_exists) {
+ ::decode(struct_v, bl); // this was a default_file_layout
+ ::decode(inode.layout, bl); // but we only care about the layout portion
+ }
+ }
+
+ if (struct_v >= 5) {
+ // InodeStore is embedded in dentries without proper versioning, so
+ // we consume up to the end of the buffer
+ if (!bl.end()) {
+ ::decode(oldest_snap, bl);
+ }
+
+ if (!bl.end()) {
+ ::decode(damage_flags, bl);
+ }
+ }
+}
+
+
+void InodeStoreBase::decode(bufferlist::iterator &bl, bufferlist& snap_blob)
+{
+ DECODE_START_LEGACY_COMPAT_LEN(5, 4, 4, bl);
+ decode_bare(bl, snap_blob, struct_v);
+ DECODE_FINISH(bl);
+}
+
+void CInode::decode_store(bufferlist::iterator& bl)
+{
+ bufferlist snap_blob;
+ InodeStoreBase::decode(bl, snap_blob);
+ decode_snap_blob(snap_blob);
+}
+
+// ------------------
+// locking
+
+void CInode::set_object_info(MDSCacheObjectInfo &info)
+{
+ info.ino = ino();
+ info.snapid = last;
+}
+
+void CInode::encode_lock_state(int type, bufferlist& bl)
+{
+ ::encode(first, bl);
+
+ switch (type) {
+ case CEPH_LOCK_IAUTH:
+ ::encode(inode.version, bl);
+ ::encode(inode.ctime, bl);
+ ::encode(inode.mode, bl);
+ ::encode(inode.uid, bl);
+ ::encode(inode.gid, bl);
+ break;
+
+ case CEPH_LOCK_ILINK:
+ ::encode(inode.version, bl);
+ ::encode(inode.ctime, bl);
+ ::encode(inode.nlink, bl);
+ break;
+
+ case CEPH_LOCK_IDFT:
+ if (is_auth()) {
+ ::encode(inode.version, bl);
+ } else {
+ // treat flushing as dirty when rejoining cache
+ bool dirty = dirfragtreelock.is_dirty_or_flushing();
+ ::encode(dirty, bl);
+ }
+ {
+ // encode the raw tree
+ ::encode(dirfragtree, bl);
+
+ // also specify which frags are mine
+ set<frag_t> myfrags;
+ list<CDir*> dfls;
+ get_dirfrags(dfls);
+ for (list<CDir*>::iterator p = dfls.begin(); p != dfls.end(); ++p)
+ if ((*p)->is_auth()) {
+ frag_t fg = (*p)->get_frag();
+ myfrags.insert(fg);
+ }
+ ::encode(myfrags, bl);
+ }
+ break;
+
+ case CEPH_LOCK_IFILE:
+ if (is_auth()) {
+ ::encode(inode.version, bl);
+ ::encode(inode.ctime, bl);
+ ::encode(inode.mtime, bl);
+ ::encode(inode.atime, bl);
+ ::encode(inode.time_warp_seq, bl);
+ if (!is_dir()) {
+ ::encode(inode.layout, bl, mdcache->mds->mdsmap->get_up_features());
+ ::encode(inode.size, bl);
+ ::encode(inode.truncate_seq, bl);
+ ::encode(inode.truncate_size, bl);
+ ::encode(inode.client_ranges, bl);
+ ::encode(inode.inline_data, bl);
+ }
+ } else {
+ // treat flushing as dirty when rejoining cache
+ bool dirty = filelock.is_dirty_or_flushing();
+ ::encode(dirty, bl);
+ }
+
+ {
+ dout(15) << "encode_lock_state inode.dirstat is " << inode.dirstat << dendl;
+ ::encode(inode.dirstat, bl); // only meaningful if i am auth.
+ bufferlist tmp;
+ __u32 n = 0;
+ for (compact_map<frag_t,CDir*>::iterator p = dirfrags.begin();
+ p != dirfrags.end();
+ ++p) {
+ frag_t fg = p->first;
+ CDir *dir = p->second;
+ if (is_auth() || dir->is_auth()) {
+ fnode_t *pf = dir->get_projected_fnode();
+ dout(15) << fg << " " << *dir << dendl;
+ dout(20) << fg << " fragstat " << pf->fragstat << dendl;
+ dout(20) << fg << " accounted_fragstat " << pf->accounted_fragstat << dendl;
+ ::encode(fg, tmp);
+ ::encode(dir->first, tmp);
+ ::encode(pf->fragstat, tmp);
+ ::encode(pf->accounted_fragstat, tmp);
+ n++;
+ }
+ }
+ ::encode(n, bl);
+ bl.claim_append(tmp);
+ }
+ break;
+
+ case CEPH_LOCK_INEST:
+ if (is_auth()) {
+ ::encode(inode.version, bl);
+ } else {
+ // treat flushing as dirty when rejoining cache
+ bool dirty = nestlock.is_dirty_or_flushing();
+ ::encode(dirty, bl);
+ }
+ {
+ dout(15) << "encode_lock_state inode.rstat is " << inode.rstat << dendl;
+ ::encode(inode.rstat, bl); // only meaningful if i am auth.
+ bufferlist tmp;
+ __u32 n = 0;
+ for (compact_map<frag_t,CDir*>::iterator p = dirfrags.begin();
+ p != dirfrags.end();
+ ++p) {
+ frag_t fg = p->first;
+ CDir *dir = p->second;
+ if (is_auth() || dir->is_auth()) {
+ fnode_t *pf = dir->get_projected_fnode();
+ dout(10) << fg << " " << *dir << dendl;
+ dout(10) << fg << " " << pf->rstat << dendl;
+ dout(10) << fg << " " << pf->rstat << dendl;
+ dout(10) << fg << " " << dir->dirty_old_rstat << dendl;
+ ::encode(fg, tmp);
+ ::encode(dir->first, tmp);
+ ::encode(pf->rstat, tmp);
+ ::encode(pf->accounted_rstat, tmp);
+ ::encode(dir->dirty_old_rstat, tmp);
+ n++;
+ }
+ }
+ ::encode(n, bl);
+ bl.claim_append(tmp);
+ }
+ break;
+
+ case CEPH_LOCK_IXATTR:
+ ::encode(inode.version, bl);
+ ::encode(inode.ctime, bl);
+ ::encode(xattrs, bl);
+ break;
+
+ case CEPH_LOCK_ISNAP:
+ ::encode(inode.version, bl);
+ ::encode(inode.ctime, bl);
+ encode_snap(bl);
+ break;
+
+ case CEPH_LOCK_IFLOCK:
+ ::encode(inode.version, bl);
+ _encode_file_locks(bl);
+ break;
+
+ case CEPH_LOCK_IPOLICY:
+ if (inode.is_dir()) {
+ ::encode(inode.version, bl);
+ ::encode(inode.ctime, bl);
+ ::encode(inode.layout, bl, mdcache->mds->mdsmap->get_up_features());
+ ::encode(inode.quota, bl);
+ ::encode(inode.export_pin, bl);
+ }
+ break;
+
+ default:
+ ceph_abort();
+ }
+}
+
+
+/* for more info on scatterlocks, see comments by Locker::scatter_writebehind */
+
+void CInode::decode_lock_state(int type, bufferlist& bl)
+{
+ bufferlist::iterator p = bl.begin();
+ utime_t tm;
+
+ snapid_t newfirst;
+ ::decode(newfirst, p);
+
+ if (!is_auth() && newfirst != first) {
+ dout(10) << "decode_lock_state first " << first << " -> " << newfirst << dendl;
+ assert(newfirst > first);
+ if (!is_multiversion() && parent) {
+ assert(parent->first == first);
+ parent->first = newfirst;
+ }
+ first = newfirst;
+ }
+
+ switch (type) {
+ case CEPH_LOCK_IAUTH:
+ ::decode(inode.version, p);
+ ::decode(tm, p);
+ if (inode.ctime < tm) inode.ctime = tm;
+ ::decode(inode.mode, p);
+ ::decode(inode.uid, p);
+ ::decode(inode.gid, p);
+ break;
+
+ case CEPH_LOCK_ILINK:
+ ::decode(inode.version, p);
+ ::decode(tm, p);
+ if (inode.ctime < tm) inode.ctime = tm;
+ ::decode(inode.nlink, p);
+ break;
+
+ case CEPH_LOCK_IDFT:
+ if (is_auth()) {
+ bool replica_dirty;
+ ::decode(replica_dirty, p);
+ if (replica_dirty) {
+ dout(10) << "decode_lock_state setting dftlock dirty flag" << dendl;
+ dirfragtreelock.mark_dirty(); // ok bc we're auth and caller will handle
+ }
+ } else {
+ ::decode(inode.version, p);
+ }
+ {
+ fragtree_t temp;
+ ::decode(temp, p);
+ set<frag_t> authfrags;
+ ::decode(authfrags, p);
+ if (is_auth()) {
+ // auth. believe replica's auth frags only.
+ for (set<frag_t>::iterator p = authfrags.begin(); p != authfrags.end(); ++p)
+ if (!dirfragtree.is_leaf(*p)) {
+ dout(10) << " forcing frag " << *p << " to leaf (split|merge)" << dendl;
+ dirfragtree.force_to_leaf(g_ceph_context, *p);
+ dirfragtreelock.mark_dirty(); // ok bc we're auth and caller will handle
+ }
+ } else {
+ // replica. take the new tree, BUT make sure any open
+ // dirfrags remain leaves (they may have split _after_ this
+ // dft was scattered, or we may still be be waiting on the
+ // notify from the auth)
+ dirfragtree.swap(temp);
+ for (compact_map<frag_t,CDir*>::iterator p = dirfrags.begin();
+ p != dirfrags.end();
+ ++p) {
+ if (!dirfragtree.is_leaf(p->first)) {
+ dout(10) << " forcing open dirfrag " << p->first << " to leaf (racing with split|merge)" << dendl;
+ dirfragtree.force_to_leaf(g_ceph_context, p->first);
+ }
+ if (p->second->is_auth())
+ p->second->state_clear(CDir::STATE_DIRTYDFT);
+ }
+ }
+ if (g_conf->mds_debug_frag)
+ verify_dirfrags();
+ }
+ break;
+
+ case CEPH_LOCK_IFILE:
+ if (!is_auth()) {
+ ::decode(inode.version, p);
+ ::decode(tm, p);
+ if (inode.ctime < tm) inode.ctime = tm;
+ ::decode(inode.mtime, p);
+ ::decode(inode.atime, p);
+ ::decode(inode.time_warp_seq, p);
+ if (!is_dir()) {
+ ::decode(inode.layout, p);
+ ::decode(inode.size, p);
+ ::decode(inode.truncate_seq, p);
+ ::decode(inode.truncate_size, p);
+ ::decode(inode.client_ranges, p);
+ ::decode(inode.inline_data, p);
+ }
+ } else {
+ bool replica_dirty;
+ ::decode(replica_dirty, p);
+ if (replica_dirty) {
+ dout(10) << "decode_lock_state setting filelock dirty flag" << dendl;
+ filelock.mark_dirty(); // ok bc we're auth and caller will handle
+ }
+ }
+ {
+ frag_info_t dirstat;
+ ::decode(dirstat, p);
+ if (!is_auth()) {
+ dout(10) << " taking inode dirstat " << dirstat << " for " << *this << dendl;
+ inode.dirstat = dirstat; // take inode summation if replica
+ }
+ __u32 n;
+ ::decode(n, p);
+ dout(10) << " ...got " << n << " fragstats on " << *this << dendl;
+ while (n--) {
+ frag_t fg;
+ snapid_t fgfirst;
+ frag_info_t fragstat;
+ frag_info_t accounted_fragstat;
+ ::decode(fg, p);
+ ::decode(fgfirst, p);
+ ::decode(fragstat, p);
+ ::decode(accounted_fragstat, p);
+ dout(10) << fg << " [" << fgfirst << ",head] " << dendl;
+ dout(10) << fg << " fragstat " << fragstat << dendl;
+ dout(20) << fg << " accounted_fragstat " << accounted_fragstat << dendl;
+
+ CDir *dir = get_dirfrag(fg);
+ if (is_auth()) {
+ assert(dir); // i am auth; i had better have this dir open
+ dout(10) << fg << " first " << dir->first << " -> " << fgfirst
+ << " on " << *dir << dendl;
+ dir->first = fgfirst;
+ dir->fnode.fragstat = fragstat;
+ dir->fnode.accounted_fragstat = accounted_fragstat;
+ dir->first = fgfirst;
+ if (!(fragstat == accounted_fragstat)) {
+ dout(10) << fg << " setting filelock updated flag" << dendl;
+ filelock.mark_dirty(); // ok bc we're auth and caller will handle
+ }
+ } else {
+ if (dir && dir->is_auth()) {
+ dout(10) << fg << " first " << dir->first << " -> " << fgfirst
+ << " on " << *dir << dendl;
+ dir->first = fgfirst;
+ fnode_t *pf = dir->get_projected_fnode();
+ finish_scatter_update(&filelock, dir,
+ inode.dirstat.version, pf->accounted_fragstat.version);
+ }
+ }
+ }
+ }
+ break;
+
+ case CEPH_LOCK_INEST:
+ if (is_auth()) {
+ bool replica_dirty;
+ ::decode(replica_dirty, p);
+ if (replica_dirty) {
+ dout(10) << "decode_lock_state setting nestlock dirty flag" << dendl;
+ nestlock.mark_dirty(); // ok bc we're auth and caller will handle
+ }
+ } else {
+ ::decode(inode.version, p);
+ }
+ {
+ nest_info_t rstat;
+ ::decode(rstat, p);
+ if (!is_auth()) {
+ dout(10) << " taking inode rstat " << rstat << " for " << *this << dendl;
+ inode.rstat = rstat; // take inode summation if replica
+ }
+ __u32 n;
+ ::decode(n, p);
+ while (n--) {
+ frag_t fg;
+ snapid_t fgfirst;
+ nest_info_t rstat;
+ nest_info_t accounted_rstat;
+ compact_map<snapid_t,old_rstat_t> dirty_old_rstat;
+ ::decode(fg, p);
+ ::decode(fgfirst, p);
+ ::decode(rstat, p);
+ ::decode(accounted_rstat, p);
+ ::decode(dirty_old_rstat, p);
+ dout(10) << fg << " [" << fgfirst << ",head]" << dendl;
+ dout(10) << fg << " rstat " << rstat << dendl;
+ dout(10) << fg << " accounted_rstat " << accounted_rstat << dendl;
+ dout(10) << fg << " dirty_old_rstat " << dirty_old_rstat << dendl;
+
+ CDir *dir = get_dirfrag(fg);
+ if (is_auth()) {
+ assert(dir); // i am auth; i had better have this dir open
+ dout(10) << fg << " first " << dir->first << " -> " << fgfirst
+ << " on " << *dir << dendl;
+ dir->first = fgfirst;
+ dir->fnode.rstat = rstat;
+ dir->fnode.accounted_rstat = accounted_rstat;
+ dir->dirty_old_rstat.swap(dirty_old_rstat);
+ if (!(rstat == accounted_rstat) || !dir->dirty_old_rstat.empty()) {
+ dout(10) << fg << " setting nestlock updated flag" << dendl;
+ nestlock.mark_dirty(); // ok bc we're auth and caller will handle
+ }
+ } else {
+ if (dir && dir->is_auth()) {
+ dout(10) << fg << " first " << dir->first << " -> " << fgfirst
+ << " on " << *dir << dendl;
+ dir->first = fgfirst;
+ fnode_t *pf = dir->get_projected_fnode();
+ finish_scatter_update(&nestlock, dir,
+ inode.rstat.version, pf->accounted_rstat.version);
+ }
+ }
+ }
+ }
+ break;
+
+ case CEPH_LOCK_IXATTR:
+ ::decode(inode.version, p);
+ ::decode(tm, p);
+ if (inode.ctime < tm) inode.ctime = tm;
+ ::decode(xattrs, p);
+ break;
+
+ case CEPH_LOCK_ISNAP:
+ {
+ ::decode(inode.version, p);
+ ::decode(tm, p);
+ if (inode.ctime < tm) inode.ctime = tm;
+ snapid_t seq = 0;
+ if (snaprealm)
+ seq = snaprealm->srnode.seq;
+ decode_snap(p);
+ if (snaprealm && snaprealm->srnode.seq != seq)
+ mdcache->do_realm_invalidate_and_update_notify(this, seq ? CEPH_SNAP_OP_UPDATE:CEPH_SNAP_OP_SPLIT);
+ }
+ break;
+
+ case CEPH_LOCK_IFLOCK:
+ ::decode(inode.version, p);
+ _decode_file_locks(p);
+ break;
+
+ case CEPH_LOCK_IPOLICY:
+ if (inode.is_dir()) {
+ ::decode(inode.version, p);
+ ::decode(tm, p);
+ if (inode.ctime < tm) inode.ctime = tm;
+ ::decode(inode.layout, p);
+ ::decode(inode.quota, p);
+ mds_rank_t old_pin = inode.export_pin;
+ ::decode(inode.export_pin, p);
+ maybe_export_pin(old_pin != inode.export_pin);
+ }
+ break;
+
+ default:
+ ceph_abort();
+ }
+}
+
+
+bool CInode::is_dirty_scattered()
+{
+ return
+ filelock.is_dirty_or_flushing() ||
+ nestlock.is_dirty_or_flushing() ||
+ dirfragtreelock.is_dirty_or_flushing();
+}
+
+void CInode::clear_scatter_dirty()
+{
+ filelock.remove_dirty();
+ nestlock.remove_dirty();
+ dirfragtreelock.remove_dirty();
+}
+
+void CInode::clear_dirty_scattered(int type)
+{
+ dout(10) << "clear_dirty_scattered " << type << " on " << *this << dendl;
+ switch (type) {
+ case CEPH_LOCK_IFILE:
+ item_dirty_dirfrag_dir.remove_myself();
+ break;
+
+ case CEPH_LOCK_INEST:
+ item_dirty_dirfrag_nest.remove_myself();
+ break;
+
+ case CEPH_LOCK_IDFT:
+ item_dirty_dirfrag_dirfragtree.remove_myself();
+ break;
+
+ default:
+ ceph_abort();
+ }
+}
+
+
+/*
+ * when we initially scatter a lock, we need to check if any of the dirfrags
+ * have out of date accounted_rstat/fragstat. if so, mark the lock stale.
+ */
+/* for more info on scatterlocks, see comments by Locker::scatter_writebehind */
+void CInode::start_scatter(ScatterLock *lock)
+{
+ dout(10) << "start_scatter " << *lock << " on " << *this << dendl;
+ assert(is_auth());
+ inode_t *pi = get_projected_inode();
+
+ for (compact_map<frag_t,CDir*>::iterator p = dirfrags.begin();
+ p != dirfrags.end();
+ ++p) {
+ frag_t fg = p->first;
+ CDir *dir = p->second;
+ fnode_t *pf = dir->get_projected_fnode();
+ dout(20) << fg << " " << *dir << dendl;
+
+ if (!dir->is_auth())
+ continue;
+
+ switch (lock->get_type()) {
+ case CEPH_LOCK_IFILE:
+ finish_scatter_update(lock, dir, pi->dirstat.version, pf->accounted_fragstat.version);
+ break;
+
+ case CEPH_LOCK_INEST:
+ finish_scatter_update(lock, dir, pi->rstat.version, pf->accounted_rstat.version);
+ break;
+
+ case CEPH_LOCK_IDFT:
+ dir->state_clear(CDir::STATE_DIRTYDFT);
+ break;
+ }
+ }
+}
+
+
+class C_Inode_FragUpdate : public MDSLogContextBase {
+protected:
+ CInode *in;
+ CDir *dir;
+ MutationRef mut;
+ MDSRank *get_mds() override {return in->mdcache->mds;}
+ void finish(int r) override {
+ in->_finish_frag_update(dir, mut);
+ }
+
+public:
+ C_Inode_FragUpdate(CInode *i, CDir *d, MutationRef& m) : in(i), dir(d), mut(m) {}
+};
+
+void CInode::finish_scatter_update(ScatterLock *lock, CDir *dir,
+ version_t inode_version, version_t dir_accounted_version)
+{
+ frag_t fg = dir->get_frag();
+ assert(dir->is_auth());
+
+ if (dir->is_frozen()) {
+ dout(10) << "finish_scatter_update " << fg << " frozen, marking " << *lock << " stale " << *dir << dendl;
+ } else if (dir->get_version() == 0) {
+ dout(10) << "finish_scatter_update " << fg << " not loaded, marking " << *lock << " stale " << *dir << dendl;
+ } else {
+ if (dir_accounted_version != inode_version) {
+ dout(10) << "finish_scatter_update " << fg << " journaling accounted scatterstat update v" << inode_version << dendl;
+
+ MDLog *mdlog = mdcache->mds->mdlog;
+ MutationRef mut(new MutationImpl());
+ mut->ls = mdlog->get_current_segment();
+
+ inode_t *pi = get_projected_inode();
+ fnode_t *pf = dir->project_fnode();
+
+ const char *ename = 0;
+ switch (lock->get_type()) {
+ case CEPH_LOCK_IFILE:
+ pf->fragstat.version = pi->dirstat.version;
+ pf->accounted_fragstat = pf->fragstat;
+ ename = "lock ifile accounted scatter stat update";
+ break;
+ case CEPH_LOCK_INEST:
+ pf->rstat.version = pi->rstat.version;
+ pf->accounted_rstat = pf->rstat;
+ ename = "lock inest accounted scatter stat update";
+
+ if (!is_auth() && lock->get_state() == LOCK_MIX) {
+ dout(10) << "finish_scatter_update try to assimilate dirty rstat on "
+ << *dir << dendl;
+ dir->assimilate_dirty_rstat_inodes();
+ }
+
+ break;
+ default:
+ ceph_abort();
+ }
+
+ pf->version = dir->pre_dirty();
+ mut->add_projected_fnode(dir);
+
+ EUpdate *le = new EUpdate(mdlog, ename);
+ mdlog->start_entry(le);
+ le->metablob.add_dir_context(dir);
+ le->metablob.add_dir(dir, true);
+
+ assert(!dir->is_frozen());
+ mut->auth_pin(dir);
+
+ if (lock->get_type() == CEPH_LOCK_INEST &&
+ !is_auth() && lock->get_state() == LOCK_MIX) {
+ dout(10) << "finish_scatter_update finish assimilating dirty rstat on "
+ << *dir << dendl;
+ dir->assimilate_dirty_rstat_inodes_finish(mut, &le->metablob);
+
+ if (!(pf->rstat == pf->accounted_rstat)) {
+ if (mut->wrlocks.count(&nestlock) == 0) {
+ mdcache->mds->locker->wrlock_force(&nestlock, mut);
+ }
+
+ mdcache->mds->locker->mark_updated_scatterlock(&nestlock);
+ mut->ls->dirty_dirfrag_nest.push_back(&item_dirty_dirfrag_nest);
+ }
+ }
+
+ mdlog->submit_entry(le, new C_Inode_FragUpdate(this, dir, mut));
+ } else {
+ dout(10) << "finish_scatter_update " << fg << " accounted " << *lock
+ << " scatter stat unchanged at v" << dir_accounted_version << dendl;
+ }
+ }
+}
+
+void CInode::_finish_frag_update(CDir *dir, MutationRef& mut)
+{
+ dout(10) << "_finish_frag_update on " << *dir << dendl;
+ mut->apply();
+ mdcache->mds->locker->drop_locks(mut.get());
+ mut->cleanup();
+}
+
+
+/*
+ * when we gather a lock, we need to assimilate dirfrag changes into the inode
+ * state. it's possible we can't update the dirfrag accounted_rstat/fragstat
+ * because the frag is auth and frozen, or that the replica couldn't for the same
+ * reason. hopefully it will get updated the next time the lock cycles.
+ *
+ * we have two dimensions of behavior:
+ * - we may be (auth and !frozen), and able to update, or not.
+ * - the frag may be stale, or not.
+ *
+ * if the frag is non-stale, we want to assimilate the diff into the
+ * inode, regardless of whether it's auth or updateable.
+ *
+ * if we update the frag, we want to set accounted_fragstat = frag,
+ * both if we took the diff or it was stale and we are making it
+ * un-stale.
+ */
+/* for more info on scatterlocks, see comments by Locker::scatter_writebehind */
+void CInode::finish_scatter_gather_update(int type)
+{
+ LogChannelRef clog = mdcache->mds->clog;
+
+ dout(10) << "finish_scatter_gather_update " << type << " on " << *this << dendl;
+ assert(is_auth());
+
+ switch (type) {
+ case CEPH_LOCK_IFILE:
+ {
+ fragtree_t tmpdft = dirfragtree;
+ struct frag_info_t dirstat;
+ bool dirstat_valid = true;
+
+ // adjust summation
+ assert(is_auth());
+ inode_t *pi = get_projected_inode();
+
+ bool touched_mtime = false, touched_chattr = false;
+ dout(20) << " orig dirstat " << pi->dirstat << dendl;
+ pi->dirstat.version++;
+ for (compact_map<frag_t,CDir*>::iterator p = dirfrags.begin();
+ p != dirfrags.end();
+ ++p) {
+ frag_t fg = p->first;
+ CDir *dir = p->second;
+ dout(20) << fg << " " << *dir << dendl;
+
+ bool update;
+ if (dir->get_version() != 0) {
+ update = dir->is_auth() && !dir->is_frozen();
+ } else {
+ update = false;
+ dirstat_valid = false;
+ }
+
+ fnode_t *pf = dir->get_projected_fnode();
+ if (update)
+ pf = dir->project_fnode();
+
+ if (pf->accounted_fragstat.version == pi->dirstat.version - 1) {
+ dout(20) << fg << " fragstat " << pf->fragstat << dendl;
+ dout(20) << fg << " accounted_fragstat " << pf->accounted_fragstat << dendl;
+ pi->dirstat.add_delta(pf->fragstat, pf->accounted_fragstat, &touched_mtime, &touched_chattr);
+ } else {
+ dout(20) << fg << " skipping STALE accounted_fragstat " << pf->accounted_fragstat << dendl;
+ }
+
+ if (pf->fragstat.nfiles < 0 ||
+ pf->fragstat.nsubdirs < 0) {
+ clog->error() << "bad/negative dir size on "
+ << dir->dirfrag() << " " << pf->fragstat;
+ assert(!"bad/negative fragstat" == g_conf->mds_verify_scatter);
+
+ if (pf->fragstat.nfiles < 0)
+ pf->fragstat.nfiles = 0;
+ if (pf->fragstat.nsubdirs < 0)
+ pf->fragstat.nsubdirs = 0;
+ }
+
+ if (update) {
+ pf->accounted_fragstat = pf->fragstat;
+ pf->fragstat.version = pf->accounted_fragstat.version = pi->dirstat.version;
+ dout(10) << fg << " updated accounted_fragstat " << pf->fragstat << " on " << *dir << dendl;
+ }
+
+ tmpdft.force_to_leaf(g_ceph_context, fg);
+ dirstat.add(pf->fragstat);
+ }
+ if (touched_mtime)
+ pi->mtime = pi->ctime = pi->dirstat.mtime;
+ if (touched_chattr)
+ pi->change_attr = pi->dirstat.change_attr;
+ dout(20) << " final dirstat " << pi->dirstat << dendl;
+
+ if (dirstat_valid && !dirstat.same_sums(pi->dirstat)) {
+ list<frag_t> ls;
+ tmpdft.get_leaves_under(frag_t(), ls);
+ for (list<frag_t>::iterator p = ls.begin(); p != ls.end(); ++p)
+ if (!dirfrags.count(*p)) {
+ dirstat_valid = false;
+ break;
+ }
+ if (dirstat_valid) {
+ if (state_test(CInode::STATE_REPAIRSTATS)) {
+ dout(20) << " dirstat mismatch, fixing" << dendl;
+ } else {
+ clog->error() << "unmatched fragstat on " << ino() << ", inode has "
+ << pi->dirstat << ", dirfrags have " << dirstat;
+ assert(!"unmatched fragstat" == g_conf->mds_verify_scatter);
+ }
+ // trust the dirfrags for now
+ version_t v = pi->dirstat.version;
+ if (pi->dirstat.mtime > dirstat.mtime)
+ dirstat.mtime = pi->dirstat.mtime;
+ if (pi->dirstat.change_attr > dirstat.change_attr)
+ dirstat.change_attr = pi->dirstat.change_attr;
+ pi->dirstat = dirstat;
+ pi->dirstat.version = v;
+ }
+ }
+
+ if (pi->dirstat.nfiles < 0 || pi->dirstat.nsubdirs < 0)
+ {
+ std::string path;
+ make_path_string(path);
+ clog->error() << "Inconsistent statistics detected: fragstat on inode "
+ << ino() << " (" << path << "), inode has " << pi->dirstat;
+ assert(!"bad/negative fragstat" == g_conf->mds_verify_scatter);
+
+ if (pi->dirstat.nfiles < 0)
+ pi->dirstat.nfiles = 0;
+ if (pi->dirstat.nsubdirs < 0)
+ pi->dirstat.nsubdirs = 0;
+ }
+ }
+ break;
+
+ case CEPH_LOCK_INEST:
+ {
+ fragtree_t tmpdft = dirfragtree;
+ nest_info_t rstat;
+ rstat.rsubdirs = 1;
+ bool rstat_valid = true;
+
+ // adjust summation
+ assert(is_auth());
+ inode_t *pi = get_projected_inode();
+ dout(20) << " orig rstat " << pi->rstat << dendl;
+ pi->rstat.version++;
+ for (compact_map<frag_t,CDir*>::iterator p = dirfrags.begin();
+ p != dirfrags.end();
+ ++p) {
+ frag_t fg = p->first;
+ CDir *dir = p->second;
+ dout(20) << fg << " " << *dir << dendl;
+
+ bool update;
+ if (dir->get_version() != 0) {
+ update = dir->is_auth() && !dir->is_frozen();
+ } else {
+ update = false;
+ rstat_valid = false;
+ }
+
+ fnode_t *pf = dir->get_projected_fnode();
+ if (update)
+ pf = dir->project_fnode();
+
+ if (pf->accounted_rstat.version == pi->rstat.version-1) {
+ // only pull this frag's dirty rstat inodes into the frag if
+ // the frag is non-stale and updateable. if it's stale,
+ // that info will just get thrown out!
+ if (update)
+ dir->assimilate_dirty_rstat_inodes();
+
+ dout(20) << fg << " rstat " << pf->rstat << dendl;
+ dout(20) << fg << " accounted_rstat " << pf->accounted_rstat << dendl;
+ dout(20) << fg << " dirty_old_rstat " << dir->dirty_old_rstat << dendl;
+ mdcache->project_rstat_frag_to_inode(pf->rstat, pf->accounted_rstat,
+ dir->first, CEPH_NOSNAP, this, true);
+ for (compact_map<snapid_t,old_rstat_t>::iterator q = dir->dirty_old_rstat.begin();
+ q != dir->dirty_old_rstat.end();
+ ++q)
+ mdcache->project_rstat_frag_to_inode(q->second.rstat, q->second.accounted_rstat,
+ q->second.first, q->first, this, true);
+ if (update) // dir contents not valid if frozen or non-auth
+ dir->check_rstats();
+ } else {
+ dout(20) << fg << " skipping STALE accounted_rstat " << pf->accounted_rstat << dendl;
+ }
+ if (update) {
+ pf->accounted_rstat = pf->rstat;
+ dir->dirty_old_rstat.clear();
+ pf->rstat.version = pf->accounted_rstat.version = pi->rstat.version;
+ dir->check_rstats();
+ dout(10) << fg << " updated accounted_rstat " << pf->rstat << " on " << *dir << dendl;
+ }
+
+ tmpdft.force_to_leaf(g_ceph_context, fg);
+ rstat.add(pf->rstat);
+ }
+ dout(20) << " final rstat " << pi->rstat << dendl;
+
+ if (rstat_valid && !rstat.same_sums(pi->rstat)) {
+ list<frag_t> ls;
+ tmpdft.get_leaves_under(frag_t(), ls);
+ for (list<frag_t>::iterator p = ls.begin(); p != ls.end(); ++p)
+ if (!dirfrags.count(*p)) {
+ rstat_valid = false;
+ break;
+ }
+ if (rstat_valid) {
+ if (state_test(CInode::STATE_REPAIRSTATS)) {
+ dout(20) << " rstat mismatch, fixing" << dendl;
+ } else {
+ clog->error() << "inconsistent rstat on inode " << ino()
+ << ", inode has " << pi->rstat
+ << ", directory fragments have " << rstat;
+ assert(!"unmatched rstat" == g_conf->mds_verify_scatter);
+ }
+ // trust the dirfrag for now
+ version_t v = pi->rstat.version;
+ if (pi->rstat.rctime > rstat.rctime)
+ rstat.rctime = pi->rstat.rctime;
+ pi->rstat = rstat;
+ pi->rstat.version = v;
+ }
+ }
+
+ mdcache->broadcast_quota_to_client(this);
+ }
+ break;
+
+ case CEPH_LOCK_IDFT:
+ break;
+
+ default:
+ ceph_abort();
+ }
+}
+
+void CInode::finish_scatter_gather_update_accounted(int type, MutationRef& mut, EMetaBlob *metablob)
+{
+ dout(10) << "finish_scatter_gather_update_accounted " << type << " on " << *this << dendl;
+ assert(is_auth());
+
+ for (compact_map<frag_t,CDir*>::iterator p = dirfrags.begin();
+ p != dirfrags.end();
+ ++p) {
+ CDir *dir = p->second;
+ if (!dir->is_auth() || dir->get_version() == 0 || dir->is_frozen())
+ continue;
+
+ if (type == CEPH_LOCK_IDFT)
+ continue; // nothing to do.
+
+ dout(10) << " journaling updated frag accounted_ on " << *dir << dendl;
+ assert(dir->is_projected());
+ fnode_t *pf = dir->get_projected_fnode();
+ pf->version = dir->pre_dirty();
+ mut->add_projected_fnode(dir);
+ metablob->add_dir(dir, true);
+ mut->auth_pin(dir);
+
+ if (type == CEPH_LOCK_INEST)
+ dir->assimilate_dirty_rstat_inodes_finish(mut, metablob);
+ }
+}
+
+// waiting
+
+bool CInode::is_frozen() const
+{
+ if (is_frozen_inode()) return true;
+ if (parent && parent->dir->is_frozen()) return true;
+ return false;
+}
+
+bool CInode::is_frozen_dir() const
+{
+ if (parent && parent->dir->is_frozen_dir()) return true;
+ return false;
+}
+
+bool CInode::is_freezing() const
+{
+ if (is_freezing_inode()) return true;
+ if (parent && parent->dir->is_freezing()) return true;
+ return false;
+}
+
+void CInode::add_dir_waiter(frag_t fg, MDSInternalContextBase *c)
+{
+ if (waiting_on_dir.empty())
+ get(PIN_DIRWAITER);
+ waiting_on_dir[fg].push_back(c);
+ dout(10) << "add_dir_waiter frag " << fg << " " << c << " on " << *this << dendl;
+}
+
+void CInode::take_dir_waiting(frag_t fg, list<MDSInternalContextBase*>& ls)
+{
+ if (waiting_on_dir.empty())
+ return;
+
+ compact_map<frag_t, list<MDSInternalContextBase*> >::iterator p = waiting_on_dir.find(fg);
+ if (p != waiting_on_dir.end()) {
+ dout(10) << "take_dir_waiting frag " << fg << " on " << *this << dendl;
+ ls.splice(ls.end(), p->second);
+ waiting_on_dir.erase(p);
+
+ if (waiting_on_dir.empty())
+ put(PIN_DIRWAITER);
+ }
+}
+
+void CInode::add_waiter(uint64_t tag, MDSInternalContextBase *c)
+{
+ dout(10) << "add_waiter tag " << std::hex << tag << std::dec << " " << c
+ << " !ambig " << !state_test(STATE_AMBIGUOUSAUTH)
+ << " !frozen " << !is_frozen_inode()
+ << " !freezing " << !is_freezing_inode()
+ << dendl;
+ // wait on the directory?
+ // make sure its not the inode that is explicitly ambiguous|freezing|frozen
+ if (((tag & WAIT_SINGLEAUTH) && !state_test(STATE_AMBIGUOUSAUTH)) ||
+ ((tag & WAIT_UNFREEZE) &&
+ !is_frozen_inode() && !is_freezing_inode() && !is_frozen_auth_pin())) {
+ dout(15) << "passing waiter up tree" << dendl;
+ parent->dir->add_waiter(tag, c);
+ return;
+ }
+ dout(15) << "taking waiter here" << dendl;
+ MDSCacheObject::add_waiter(tag, c);
+}
+
+void CInode::take_waiting(uint64_t mask, list<MDSInternalContextBase*>& ls)
+{
+ if ((mask & WAIT_DIR) && !waiting_on_dir.empty()) {
+ // take all dentry waiters
+ while (!waiting_on_dir.empty()) {
+ compact_map<frag_t, list<MDSInternalContextBase*> >::iterator p = waiting_on_dir.begin();
+ dout(10) << "take_waiting dirfrag " << p->first << " on " << *this << dendl;
+ ls.splice(ls.end(), p->second);
+ waiting_on_dir.erase(p);
+ }
+ put(PIN_DIRWAITER);
+ }
+
+ // waiting
+ MDSCacheObject::take_waiting(mask, ls);
+}
+
+bool CInode::freeze_inode(int auth_pin_allowance)
+{
+ assert(auth_pin_allowance > 0); // otherwise we need to adjust parent's nested_auth_pins
+ assert(auth_pins >= auth_pin_allowance);
+ if (auth_pins > auth_pin_allowance) {
+ dout(10) << "freeze_inode - waiting for auth_pins to drop to " << auth_pin_allowance << dendl;
+ auth_pin_freeze_allowance = auth_pin_allowance;
+ get(PIN_FREEZING);
+ state_set(STATE_FREEZING);
+ return false;
+ }
+
+ dout(10) << "freeze_inode - frozen" << dendl;
+ assert(auth_pins == auth_pin_allowance);
+ if (!state_test(STATE_FROZEN)) {
+ get(PIN_FROZEN);
+ state_set(STATE_FROZEN);
+ }
+ return true;
+}
+
+void CInode::unfreeze_inode(list<MDSInternalContextBase*>& finished)
+{
+ dout(10) << "unfreeze_inode" << dendl;
+ if (state_test(STATE_FREEZING)) {
+ state_clear(STATE_FREEZING);
+ put(PIN_FREEZING);
+ } else if (state_test(STATE_FROZEN)) {
+ state_clear(STATE_FROZEN);
+ put(PIN_FROZEN);
+ } else
+ ceph_abort();
+ take_waiting(WAIT_UNFREEZE, finished);
+}
+
+void CInode::unfreeze_inode()
+{
+ list<MDSInternalContextBase*> finished;
+ unfreeze_inode(finished);
+ mdcache->mds->queue_waiters(finished);
+}
+
+void CInode::freeze_auth_pin()
+{
+ assert(state_test(CInode::STATE_FROZEN));
+ state_set(CInode::STATE_FROZENAUTHPIN);
+}
+
+void CInode::unfreeze_auth_pin()
+{
+ assert(state_test(CInode::STATE_FROZENAUTHPIN));
+ state_clear(CInode::STATE_FROZENAUTHPIN);
+ if (!state_test(STATE_FREEZING|STATE_FROZEN)) {
+ list<MDSInternalContextBase*> finished;
+ take_waiting(WAIT_UNFREEZE, finished);
+ mdcache->mds->queue_waiters(finished);
+ }
+}
+
+void CInode::clear_ambiguous_auth(list<MDSInternalContextBase*>& finished)
+{
+ assert(state_test(CInode::STATE_AMBIGUOUSAUTH));
+ state_clear(CInode::STATE_AMBIGUOUSAUTH);
+ take_waiting(CInode::WAIT_SINGLEAUTH, finished);
+}
+
+void CInode::clear_ambiguous_auth()
+{
+ list<MDSInternalContextBase*> finished;
+ clear_ambiguous_auth(finished);
+ mdcache->mds->queue_waiters(finished);
+}
+
+// auth_pins
+bool CInode::can_auth_pin() const {
+ if (!is_auth() || is_freezing_inode() || is_frozen_inode() || is_frozen_auth_pin())
+ return false;
+ if (parent)
+ return parent->can_auth_pin();
+ return true;
+}
+
+void CInode::auth_pin(void *by)
+{
+ if (auth_pins == 0)
+ get(PIN_AUTHPIN);
+ auth_pins++;
+
+#ifdef MDS_AUTHPIN_SET
+ auth_pin_set.insert(by);
+#endif
+
+ dout(10) << "auth_pin by " << by << " on " << *this
+ << " now " << auth_pins << "+" << nested_auth_pins
+ << dendl;
+
+ if (parent)
+ parent->adjust_nested_auth_pins(1, 1, this);
+}
+
+void CInode::auth_unpin(void *by)
+{
+ auth_pins--;
+
+#ifdef MDS_AUTHPIN_SET
+ assert(auth_pin_set.count(by));
+ auth_pin_set.erase(auth_pin_set.find(by));
+#endif
+
+ if (auth_pins == 0)
+ put(PIN_AUTHPIN);
+
+ dout(10) << "auth_unpin by " << by << " on " << *this
+ << " now " << auth_pins << "+" << nested_auth_pins
+ << dendl;
+
+ assert(auth_pins >= 0);
+
+ if (parent)
+ parent->adjust_nested_auth_pins(-1, -1, by);
+
+ if (is_freezing_inode() &&
+ auth_pins == auth_pin_freeze_allowance) {
+ dout(10) << "auth_unpin freezing!" << dendl;
+ get(PIN_FROZEN);
+ put(PIN_FREEZING);
+ state_clear(STATE_FREEZING);
+ state_set(STATE_FROZEN);
+ finish_waiting(WAIT_FROZEN);
+ }
+}
+
+void CInode::adjust_nested_auth_pins(int a, void *by)
+{
+ assert(a);
+ nested_auth_pins += a;
+ dout(35) << "adjust_nested_auth_pins by " << by
+ << " change " << a << " yields "
+ << auth_pins << "+" << nested_auth_pins << dendl;
+ assert(nested_auth_pins >= 0);
+
+ if (g_conf->mds_debug_auth_pins) {
+ // audit
+ int s = 0;
+ for (compact_map<frag_t,CDir*>::iterator p = dirfrags.begin();
+ p != dirfrags.end();
+ ++p) {
+ CDir *dir = p->second;
+ if (!dir->is_subtree_root() && dir->get_cum_auth_pins())
+ s++;
+ }
+ assert(s == nested_auth_pins);
+ }
+
+ if (parent)
+ parent->adjust_nested_auth_pins(a, 0, by);
+}
+
+
+// authority
+
+mds_authority_t CInode::authority() const
+{
+ if (inode_auth.first >= 0)
+ return inode_auth;
+
+ if (parent)
+ return parent->dir->authority();
+
+ // new items that are not yet linked in (in the committed plane) belong
+ // to their first parent.
+ if (!projected_parent.empty())
+ return projected_parent.front()->dir->authority();
+
+ return CDIR_AUTH_UNDEF;
+}
+
+
+// SNAP
+
+snapid_t CInode::get_oldest_snap()
+{
+ snapid_t t = first;
+ if (!old_inodes.empty())
+ t = old_inodes.begin()->second.first;
+ return MIN(t, oldest_snap);
+}
+
+old_inode_t& CInode::cow_old_inode(snapid_t follows, bool cow_head)
+{
+ assert(follows >= first);
+
+ inode_t *pi = cow_head ? get_projected_inode() : get_previous_projected_inode();
+ map<string,bufferptr> *px = cow_head ? get_projected_xattrs() : get_previous_projected_xattrs();
+
+ old_inode_t &old = old_inodes[follows];
+ old.first = first;
+ old.inode = *pi;
+ old.xattrs = *px;
+
+ if (first < oldest_snap)
+ oldest_snap = first;
+
+ dout(10) << " " << px->size() << " xattrs cowed, " << *px << dendl;
+
+ old.inode.trim_client_ranges(follows);
+
+ if (g_conf->mds_snap_rstat &&
+ !(old.inode.rstat == old.inode.accounted_rstat))
+ dirty_old_rstats.insert(follows);
+
+ first = follows+1;
+
+ dout(10) << "cow_old_inode " << (cow_head ? "head" : "previous_head" )
+ << " to [" << old.first << "," << follows << "] on "
+ << *this << dendl;
+
+ return old;
+}
+
+void CInode::split_old_inode(snapid_t snap)
+{
+ compact_map<snapid_t, old_inode_t>::iterator p = old_inodes.lower_bound(snap);
+ assert(p != old_inodes.end() && p->second.first < snap);
+
+ old_inode_t &old = old_inodes[snap - 1];
+ old = p->second;
+
+ p->second.first = snap;
+ dout(10) << "split_old_inode " << "[" << old.first << "," << p->first
+ << "] to [" << snap << "," << p->first << "] on " << *this << dendl;
+}
+
+void CInode::pre_cow_old_inode()
+{
+ snapid_t follows = find_snaprealm()->get_newest_seq();
+ if (first <= follows)
+ cow_old_inode(follows, true);
+}
+
+void CInode::purge_stale_snap_data(const set<snapid_t>& snaps)
+{
+ dout(10) << "purge_stale_snap_data " << snaps << dendl;
+
+ if (old_inodes.empty())
+ return;
+
+ compact_map<snapid_t,old_inode_t>::iterator p = old_inodes.begin();
+ while (p != old_inodes.end()) {
+ set<snapid_t>::const_iterator q = snaps.lower_bound(p->second.first);
+ if (q == snaps.end() || *q > p->first) {
+ dout(10) << " purging old_inode [" << p->second.first << "," << p->first << "]" << dendl;
+ old_inodes.erase(p++);
+ } else
+ ++p;
+ }
+}
+
+/*
+ * pick/create an old_inode
+ */
+old_inode_t * CInode::pick_old_inode(snapid_t snap)
+{
+ compact_map<snapid_t, old_inode_t>::iterator p = old_inodes.lower_bound(snap); // p is first key >= to snap
+ if (p != old_inodes.end() && p->second.first <= snap) {
+ dout(10) << "pick_old_inode snap " << snap << " -> [" << p->second.first << "," << p->first << "]" << dendl;
+ return &p->second;
+ }
+ dout(10) << "pick_old_inode snap " << snap << " -> nothing" << dendl;
+ return NULL;
+}
+
+void CInode::open_snaprealm(bool nosplit)
+{
+ if (!snaprealm) {
+ SnapRealm *parent = find_snaprealm();
+ snaprealm = new SnapRealm(mdcache, this);
+ if (parent) {
+ dout(10) << "open_snaprealm " << snaprealm
+ << " parent is " << parent
+ << dendl;
+ dout(30) << " siblings are " << parent->open_children << dendl;
+ snaprealm->parent = parent;
+ if (!nosplit)
+ parent->split_at(snaprealm);
+ parent->open_children.insert(snaprealm);
+ }
+ }
+}
+void CInode::close_snaprealm(bool nojoin)
+{
+ if (snaprealm) {
+ dout(15) << "close_snaprealm " << *snaprealm << dendl;
+ snaprealm->close_parents();
+ if (snaprealm->parent) {
+ snaprealm->parent->open_children.erase(snaprealm);
+ //if (!nojoin)
+ //snaprealm->parent->join(snaprealm);
+ }
+ delete snaprealm;
+ snaprealm = 0;
+ }
+}
+
+SnapRealm *CInode::find_snaprealm() const
+{
+ const CInode *cur = this;
+ while (!cur->snaprealm) {
+ if (cur->get_parent_dn())
+ cur = cur->get_parent_dn()->get_dir()->get_inode();
+ else if (get_projected_parent_dn())
+ cur = cur->get_projected_parent_dn()->get_dir()->get_inode();
+ else
+ break;
+ }
+ return cur->snaprealm;
+}
+
+void CInode::encode_snap_blob(bufferlist &snapbl)
+{
+ if (snaprealm) {
+ ::encode(snaprealm->srnode, snapbl);
+ dout(20) << "encode_snap_blob " << *snaprealm << dendl;
+ }
+}
+void CInode::decode_snap_blob(bufferlist& snapbl)
+{
+ if (snapbl.length()) {
+ open_snaprealm();
+ bufferlist::iterator p = snapbl.begin();
+ ::decode(snaprealm->srnode, p);
+ if (is_base()) {
+ bool ok = snaprealm->_open_parents(NULL);
+ assert(ok);
+ }
+ dout(20) << "decode_snap_blob " << *snaprealm << dendl;
+ }
+}
+
+void CInode::encode_snap(bufferlist& bl)
+{
+ bufferlist snapbl;
+ encode_snap_blob(snapbl);
+ ::encode(snapbl, bl);
+ ::encode(oldest_snap, bl);
+}
+
+void CInode::decode_snap(bufferlist::iterator& p)
+{
+ bufferlist snapbl;
+ ::decode(snapbl, p);
+ ::decode(oldest_snap, p);
+ decode_snap_blob(snapbl);
+}
+
+// =============================================
+
+client_t CInode::calc_ideal_loner()
+{
+ if (mdcache->is_readonly())
+ return -1;
+ if (!mds_caps_wanted.empty())
+ return -1;
+
+ int n = 0;
+ client_t loner = -1;
+ for (map<client_t,Capability*>::iterator it = client_caps.begin();
+ it != client_caps.end();
+ ++it)
+ if (!it->second->is_stale() &&
+ ((it->second->wanted() & (CEPH_CAP_ANY_WR|CEPH_CAP_FILE_WR|CEPH_CAP_FILE_RD)) ||
+ (inode.is_dir() && !has_subtree_root_dirfrag()))) {
+ if (n)
+ return -1;
+ n++;
+ loner = it->first;
+ }
+ return loner;
+}
+
+client_t CInode::choose_ideal_loner()
+{
+ want_loner_cap = calc_ideal_loner();
+ return want_loner_cap;
+}
+
+bool CInode::try_set_loner()
+{
+ assert(want_loner_cap >= 0);
+ if (loner_cap >= 0 && loner_cap != want_loner_cap)
+ return false;
+ set_loner_cap(want_loner_cap);
+ return true;
+}
+
+void CInode::set_loner_cap(client_t l)
+{
+ loner_cap = l;
+ authlock.set_excl_client(loner_cap);
+ filelock.set_excl_client(loner_cap);
+ linklock.set_excl_client(loner_cap);
+ xattrlock.set_excl_client(loner_cap);
+}
+
+bool CInode::try_drop_loner()
+{
+ if (loner_cap < 0)
+ return true;
+
+ int other_allowed = get_caps_allowed_by_type(CAP_ANY);
+ Capability *cap = get_client_cap(loner_cap);
+ if (!cap ||
+ (cap->issued() & ~other_allowed) == 0) {
+ set_loner_cap(-1);
+ return true;
+ }
+ return false;
+}
+
+
+// choose new lock state during recovery, based on issued caps
+void CInode::choose_lock_state(SimpleLock *lock, int allissued)
+{
+ int shift = lock->get_cap_shift();
+ int issued = (allissued >> shift) & lock->get_cap_mask();
+ if (is_auth()) {
+ if (lock->is_xlocked()) {
+ // do nothing here
+ } else if (lock->get_state() != LOCK_MIX) {
+ if (issued & (CEPH_CAP_GEXCL | CEPH_CAP_GBUFFER))
+ lock->set_state(LOCK_EXCL);
+ else if (issued & CEPH_CAP_GWR)
+ lock->set_state(LOCK_MIX);
+ else if (lock->is_dirty()) {
+ if (is_replicated())
+ lock->set_state(LOCK_MIX);
+ else
+ lock->set_state(LOCK_LOCK);
+ } else
+ lock->set_state(LOCK_SYNC);
+ }
+ } else {
+ // our states have already been chosen during rejoin.
+ if (lock->is_xlocked())
+ assert(lock->get_state() == LOCK_LOCK);
+ }
+}
+
+void CInode::choose_lock_states(int dirty_caps)
+{
+ int issued = get_caps_issued() | dirty_caps;
+ if (is_auth() && (issued & (CEPH_CAP_ANY_EXCL|CEPH_CAP_ANY_WR)) &&
+ choose_ideal_loner() >= 0)
+ try_set_loner();
+ choose_lock_state(&filelock, issued);
+ choose_lock_state(&nestlock, issued);
+ choose_lock_state(&dirfragtreelock, issued);
+ choose_lock_state(&authlock, issued);
+ choose_lock_state(&xattrlock, issued);
+ choose_lock_state(&linklock, issued);
+}
+
+Capability *CInode::add_client_cap(client_t client, Session *session, SnapRealm *conrealm)
+{
+ if (client_caps.empty()) {
+ get(PIN_CAPS);
+ if (conrealm)
+ containing_realm = conrealm;
+ else
+ containing_realm = find_snaprealm();
+ containing_realm->inodes_with_caps.push_back(&item_caps);
+ dout(10) << "add_client_cap first cap, joining realm " << *containing_realm << dendl;
+ }
+
+ if (client_caps.empty())
+ mdcache->num_inodes_with_caps++;
+
+ Capability *cap = new Capability(this, ++mdcache->last_cap_id, client);
+ assert(client_caps.count(client) == 0);
+ client_caps[client] = cap;
+
+ session->add_cap(cap);
+ if (session->is_stale())
+ cap->mark_stale();
+
+ cap->client_follows = first-1;
+
+ containing_realm->add_cap(client, cap);
+
+ return cap;
+}
+
+void CInode::remove_client_cap(client_t client)
+{
+ assert(client_caps.count(client) == 1);
+ Capability *cap = client_caps[client];
+
+ cap->item_session_caps.remove_myself();
+ cap->item_revoking_caps.remove_myself();
+ cap->item_client_revoking_caps.remove_myself();
+ containing_realm->remove_cap(client, cap);
+
+ if (client == loner_cap)
+ loner_cap = -1;
+
+ delete cap;
+ client_caps.erase(client);
+ if (client_caps.empty()) {
+ dout(10) << "remove_client_cap last cap, leaving realm " << *containing_realm << dendl;
+ put(PIN_CAPS);
+ item_caps.remove_myself();
+ containing_realm = NULL;
+ item_open_file.remove_myself(); // unpin logsegment
+ mdcache->num_inodes_with_caps--;
+ }
+
+ //clean up advisory locks
+ bool fcntl_removed = fcntl_locks ? fcntl_locks->remove_all_from(client) : false;
+ bool flock_removed = flock_locks ? flock_locks->remove_all_from(client) : false;
+ if (fcntl_removed || flock_removed) {
+ list<MDSInternalContextBase*> waiters;
+ take_waiting(CInode::WAIT_FLOCK, waiters);
+ mdcache->mds->queue_waiters(waiters);
+ }
+}
+
+void CInode::move_to_realm(SnapRealm *realm)
+{
+ dout(10) << "move_to_realm joining realm " << *realm
+ << ", leaving realm " << *containing_realm << dendl;
+ for (map<client_t,Capability*>::iterator q = client_caps.begin();
+ q != client_caps.end();
+ ++q) {
+ containing_realm->remove_cap(q->first, q->second);
+ realm->add_cap(q->first, q->second);
+ }
+ item_caps.remove_myself();
+ realm->inodes_with_caps.push_back(&item_caps);
+ containing_realm = realm;
+}
+
+Capability *CInode::reconnect_cap(client_t client, const cap_reconnect_t& icr, Session *session)
+{
+ Capability *cap = get_client_cap(client);
+ if (cap) {
+ // FIXME?
+ cap->merge(icr.capinfo.wanted, icr.capinfo.issued);
+ } else {
+ cap = add_client_cap(client, session);
+ cap->set_cap_id(icr.capinfo.cap_id);
+ cap->set_wanted(icr.capinfo.wanted);
+ cap->issue_norevoke(icr.capinfo.issued);
+ cap->reset_seq();
+ }
+ cap->set_last_issue_stamp(ceph_clock_now());
+ return cap;
+}
+
+void CInode::clear_client_caps_after_export()
+{
+ while (!client_caps.empty())
+ remove_client_cap(client_caps.begin()->first);
+ loner_cap = -1;
+ want_loner_cap = -1;
+ mds_caps_wanted.clear();
+}
+
+void CInode::export_client_caps(map<client_t,Capability::Export>& cl)
+{
+ for (map<client_t,Capability*>::iterator it = client_caps.begin();
+ it != client_caps.end();
+ ++it) {
+ cl[it->first] = it->second->make_export();
+ }
+}
+
+ // caps allowed
+int CInode::get_caps_liked() const
+{
+ if (is_dir())
+ return CEPH_CAP_PIN | CEPH_CAP_ANY_EXCL | CEPH_CAP_ANY_SHARED; // but not, say, FILE_RD|WR|WRBUFFER
+ else
+ return CEPH_CAP_ANY & ~CEPH_CAP_FILE_LAZYIO;
+}
+
+int CInode::get_caps_allowed_ever() const
+{
+ int allowed;
+ if (is_dir())
+ allowed = CEPH_CAP_PIN | CEPH_CAP_ANY_EXCL | CEPH_CAP_ANY_SHARED;
+ else
+ allowed = CEPH_CAP_ANY;
+ return allowed &
+ (CEPH_CAP_PIN |
+ (filelock.gcaps_allowed_ever() << filelock.get_cap_shift()) |
+ (authlock.gcaps_allowed_ever() << authlock.get_cap_shift()) |
+ (xattrlock.gcaps_allowed_ever() << xattrlock.get_cap_shift()) |
+ (linklock.gcaps_allowed_ever() << linklock.get_cap_shift()));
+}
+
+int CInode::get_caps_allowed_by_type(int type) const
+{
+ return
+ CEPH_CAP_PIN |
+ (filelock.gcaps_allowed(type) << filelock.get_cap_shift()) |
+ (authlock.gcaps_allowed(type) << authlock.get_cap_shift()) |
+ (xattrlock.gcaps_allowed(type) << xattrlock.get_cap_shift()) |
+ (linklock.gcaps_allowed(type) << linklock.get_cap_shift());
+}
+
+int CInode::get_caps_careful() const
+{
+ return
+ (filelock.gcaps_careful() << filelock.get_cap_shift()) |
+ (authlock.gcaps_careful() << authlock.get_cap_shift()) |
+ (xattrlock.gcaps_careful() << xattrlock.get_cap_shift()) |
+ (linklock.gcaps_careful() << linklock.get_cap_shift());
+}
+
+int CInode::get_xlocker_mask(client_t client) const
+{
+ return
+ (filelock.gcaps_xlocker_mask(client) << filelock.get_cap_shift()) |
+ (authlock.gcaps_xlocker_mask(client) << authlock.get_cap_shift()) |
+ (xattrlock.gcaps_xlocker_mask(client) << xattrlock.get_cap_shift()) |
+ (linklock.gcaps_xlocker_mask(client) << linklock.get_cap_shift());
+}
+
+int CInode::get_caps_allowed_for_client(Session *session, inode_t *file_i) const
+{
+ client_t client = session->info.inst.name.num();
+ int allowed;
+ if (client == get_loner()) {
+ // as the loner, we get the loner_caps AND any xlocker_caps for things we have xlocked
+ allowed =
+ get_caps_allowed_by_type(CAP_LONER) |
+ (get_caps_allowed_by_type(CAP_XLOCKER) & get_xlocker_mask(client));
+ } else {
+ allowed = get_caps_allowed_by_type(CAP_ANY);
+ }
+
+ if (!is_dir()) {
+ if ((file_i->inline_data.version != CEPH_INLINE_NONE &&
+ !session->connection->has_feature(CEPH_FEATURE_MDS_INLINE_DATA)) ||
+ (!file_i->layout.pool_ns.empty() &&
+ !session->connection->has_feature(CEPH_FEATURE_FS_FILE_LAYOUT_V2)))
+ allowed &= ~(CEPH_CAP_FILE_RD | CEPH_CAP_FILE_WR);
+ }
+ return allowed;
+}
+
+// caps issued, wanted
+int CInode::get_caps_issued(int *ploner, int *pother, int *pxlocker,
+ int shift, int mask)
+{
+ int c = 0;
+ int loner = 0, other = 0, xlocker = 0;
+ if (!is_auth()) {
+ loner_cap = -1;
+ }
+
+ for (map<client_t,Capability*>::const_iterator it = client_caps.begin();
+ it != client_caps.end();
+ ++it) {
+ int i = it->second->issued();
+ c |= i;
+ if (it->first == loner_cap)
+ loner |= i;
+ else
+ other |= i;
+ xlocker |= get_xlocker_mask(it->first) & i;
+ }
+ if (ploner) *ploner = (loner >> shift) & mask;
+ if (pother) *pother = (other >> shift) & mask;
+ if (pxlocker) *pxlocker = (xlocker >> shift) & mask;
+ return (c >> shift) & mask;
+}
+
+bool CInode::is_any_caps_wanted() const
+{
+ for (map<client_t,Capability*>::const_iterator it = client_caps.begin();
+ it != client_caps.end();
+ ++it)
+ if (it->second->wanted())
+ return true;
+ return false;
+}
+
+int CInode::get_caps_wanted(int *ploner, int *pother, int shift, int mask) const
+{
+ int w = 0;
+ int loner = 0, other = 0;
+ for (map<client_t,Capability*>::const_iterator it = client_caps.begin();
+ it != client_caps.end();
+ ++it) {
+ if (!it->second->is_stale()) {
+ int t = it->second->wanted();
+ w |= t;
+ if (it->first == loner_cap)
+ loner |= t;
+ else
+ other |= t;
+ }
+ //cout << " get_caps_wanted client " << it->first << " " << cap_string(it->second.wanted()) << endl;
+ }
+ if (is_auth())
+ for (compact_map<int,int>::const_iterator it = mds_caps_wanted.begin();
+ it != mds_caps_wanted.end();
+ ++it) {
+ w |= it->second;
+ other |= it->second;
+ //cout << " get_caps_wanted mds " << it->first << " " << cap_string(it->second) << endl;
+ }
+ if (ploner) *ploner = (loner >> shift) & mask;
+ if (pother) *pother = (other >> shift) & mask;
+ return (w >> shift) & mask;
+}
+
+bool CInode::issued_caps_need_gather(SimpleLock *lock)
+{
+ int loner_issued, other_issued, xlocker_issued;
+ get_caps_issued(&loner_issued, &other_issued, &xlocker_issued,
+ lock->get_cap_shift(), lock->get_cap_mask());
+ if ((loner_issued & ~lock->gcaps_allowed(CAP_LONER)) ||
+ (other_issued & ~lock->gcaps_allowed(CAP_ANY)) ||
+ (xlocker_issued & ~lock->gcaps_allowed(CAP_XLOCKER)))
+ return true;
+ return false;
+}
+
+void CInode::replicate_relax_locks()
+{
+ //dout(10) << " relaxing locks on " << *this << dendl;
+ assert(is_auth());
+ assert(!is_replicated());
+
+ authlock.replicate_relax();
+ linklock.replicate_relax();
+ dirfragtreelock.replicate_relax();
+ filelock.replicate_relax();
+ xattrlock.replicate_relax();
+ snaplock.replicate_relax();
+ nestlock.replicate_relax();
+ flocklock.replicate_relax();
+ policylock.replicate_relax();
+}
+
+
+
+// =============================================
+
+int CInode::encode_inodestat(bufferlist& bl, Session *session,
+ SnapRealm *dir_realm,
+ snapid_t snapid,
+ unsigned max_bytes,
+ int getattr_caps)
+{
+ client_t client = session->info.inst.name.num();
+ assert(snapid);
+ assert(session->connection);
+
+ bool valid = true;
+
+ // pick a version!
+ inode_t *oi = &inode;
+ inode_t *pi = get_projected_inode();
+
+ map<string, bufferptr> *pxattrs = 0;
+
+ if (snapid != CEPH_NOSNAP) {
+
+ // for now at least, old_inodes is only defined/valid on the auth
+ if (!is_auth())
+ valid = false;
+
+ if (is_multiversion()) {
+ compact_map<snapid_t,old_inode_t>::iterator p = old_inodes.lower_bound(snapid);
+ if (p != old_inodes.end()) {
+ if (p->second.first > snapid) {
+ if (p != old_inodes.begin())
+ --p;
+ }
+ if (p->second.first <= snapid && snapid <= p->first) {
+ dout(15) << "encode_inodestat snapid " << snapid
+ << " to old_inode [" << p->second.first << "," << p->first << "]"
+ << " " << p->second.inode.rstat
+ << dendl;
+ pi = oi = &p->second.inode;
+ pxattrs = &p->second.xattrs;
+ } else {
+ // snapshoted remote dentry can result this
+ dout(0) << "encode_inodestat old_inode for snapid " << snapid
+ << " not found" << dendl;
+ }
+ }
+ } else if (snapid < first || snapid > last) {
+ // snapshoted remote dentry can result this
+ dout(0) << "encode_inodestat [" << first << "," << last << "]"
+ << " not match snapid " << snapid << dendl;
+ }
+ }
+
+ SnapRealm *realm = find_snaprealm();
+
+ bool no_caps = !valid ||
+ session->is_stale() ||
+ (dir_realm && realm != dir_realm) ||
+ is_frozen() ||
+ state_test(CInode::STATE_EXPORTINGCAPS);
+ if (no_caps)
+ dout(20) << "encode_inodestat no caps"
+ << (!valid?", !valid":"")
+ << (session->is_stale()?", session stale ":"")
+ << ((dir_realm && realm != dir_realm)?", snaprealm differs ":"")
+ << (is_frozen()?", frozen inode":"")
+ << (state_test(CInode::STATE_EXPORTINGCAPS)?", exporting caps":"")
+ << dendl;
+
+
+ // "fake" a version that is old (stable) version, +1 if projected.
+ version_t version = (oi->version * 2) + is_projected();
+
+ Capability *cap = get_client_cap(client);
+ bool pfile = filelock.is_xlocked_by_client(client) || get_loner() == client;
+ //(cap && (cap->issued() & CEPH_CAP_FILE_EXCL));
+ bool pauth = authlock.is_xlocked_by_client(client) || get_loner() == client;
+ bool plink = linklock.is_xlocked_by_client(client) || get_loner() == client;
+ bool pxattr = xattrlock.is_xlocked_by_client(client) || get_loner() == client;
+
+ bool plocal = versionlock.get_last_wrlock_client() == client;
+ bool ppolicy = policylock.is_xlocked_by_client(client) || get_loner()==client;
+
+ inode_t *any_i = (pfile|pauth|plink|pxattr|plocal) ? pi : oi;
+
+ dout(20) << " pfile " << pfile << " pauth " << pauth
+ << " plink " << plink << " pxattr " << pxattr
+ << " plocal " << plocal
+ << " ctime " << any_i->ctime
+ << " valid=" << valid << dendl;
+
+ // file
+ inode_t *file_i = pfile ? pi:oi;
+ file_layout_t layout;
+ if (is_dir()) {
+ layout = (ppolicy ? pi : oi)->layout;
+ } else {
+ layout = file_i->layout;
+ }
+
+ // max_size is min of projected, actual
+ uint64_t max_size =
+ MIN(oi->client_ranges.count(client) ?
+ oi->client_ranges[client].range.last : 0,
+ pi->client_ranges.count(client) ?
+ pi->client_ranges[client].range.last : 0);
+
+ // inline data
+ version_t inline_version = 0;
+ bufferlist inline_data;
+ if (file_i->inline_data.version == CEPH_INLINE_NONE) {
+ inline_version = CEPH_INLINE_NONE;
+ } else if ((!cap && !no_caps) ||
+ (cap && cap->client_inline_version < file_i->inline_data.version) ||
+ (getattr_caps & CEPH_CAP_FILE_RD)) { // client requests inline data
+ inline_version = file_i->inline_data.version;
+ if (file_i->inline_data.length() > 0)
+ inline_data = file_i->inline_data.get_data();
+ }
+
+ // nest (do same as file... :/)
+ if (cap) {
+ cap->last_rbytes = file_i->rstat.rbytes;
+ cap->last_rsize = file_i->rstat.rsize();
+ }
+
+ // auth
+ inode_t *auth_i = pauth ? pi:oi;
+
+ // link
+ inode_t *link_i = plink ? pi:oi;
+
+ // xattr
+ inode_t *xattr_i = pxattr ? pi:oi;
+
+ // xattr
+ bufferlist xbl;
+ version_t xattr_version;
+ if ((!cap && !no_caps) ||
+ (cap && cap->client_xattr_version < xattr_i->xattr_version) ||
+ (getattr_caps & CEPH_CAP_XATTR_SHARED)) { // client requests xattrs
+ if (!pxattrs)
+ pxattrs = pxattr ? get_projected_xattrs() : &xattrs;
+ ::encode(*pxattrs, xbl);
+ xattr_version = xattr_i->xattr_version;
+ } else {
+ xattr_version = 0;
+ }
+
+ // do we have room?
+ if (max_bytes) {
+ unsigned bytes = 8 + 8 + 4 + 8 + 8 + sizeof(ceph_mds_reply_cap) +
+ sizeof(struct ceph_file_layout) + 4 + layout.pool_ns.size() +
+ sizeof(struct ceph_timespec) * 3 +
+ 4 + 8 + 8 + 8 + 4 + 4 + 4 + 4 + 4 +
+ 8 + 8 + 8 + 8 + 8 + sizeof(struct ceph_timespec) +
+ 4;
+ bytes += sizeof(__u32);
+ bytes += (sizeof(__u32) + sizeof(__u32)) * dirfragtree._splits.size();
+ bytes += sizeof(__u32) + symlink.length();
+ bytes += sizeof(__u32) + xbl.length();
+ bytes += sizeof(version_t) + sizeof(__u32) + inline_data.length();
+ if (bytes > max_bytes)
+ return -ENOSPC;
+ }
+
+
+ // encode caps
+ struct ceph_mds_reply_cap ecap;
+ if (snapid != CEPH_NOSNAP) {
+ /*
+ * snapped inodes (files or dirs) only get read-only caps. always
+ * issue everything possible, since it is read only.
+ *
+ * if a snapped inode has caps, limit issued caps based on the
+ * lock state.
+ *
+ * if it is a live inode, limit issued caps based on the lock
+ * state.
+ *
+ * do NOT adjust cap issued state, because the client always
+ * tracks caps per-snap and the mds does either per-interval or
+ * multiversion.
+ */
+ ecap.caps = valid ? get_caps_allowed_by_type(CAP_ANY) : CEPH_STAT_CAP_INODE;
+ if (last == CEPH_NOSNAP || is_any_caps())
+ ecap.caps = ecap.caps & get_caps_allowed_for_client(session, file_i);
+ ecap.seq = 0;
+ ecap.mseq = 0;
+ ecap.realm = 0;
+ } else {
+ if (!no_caps && !cap) {
+ // add a new cap
+ cap = add_client_cap(client, session, realm);
+ if (is_auth()) {
+ if (choose_ideal_loner() >= 0)
+ try_set_loner();
+ else if (get_wanted_loner() < 0)
+ try_drop_loner();
+ }
+ }
+
+ int issue = 0;
+ if (!no_caps && cap) {
+ int likes = get_caps_liked();
+ int allowed = get_caps_allowed_for_client(session, file_i);
+ issue = (cap->wanted() | likes) & allowed;
+ cap->issue_norevoke(issue);
+ issue = cap->pending();
+ dout(10) << "encode_inodestat issuing " << ccap_string(issue)
+ << " seq " << cap->get_last_seq() << dendl;
+ } else if (cap && cap->is_new() && !dir_realm) {
+ // alway issue new caps to client, otherwise the caps get lost
+ assert(cap->is_stale());
+ issue = cap->pending() | CEPH_CAP_PIN;
+ cap->issue_norevoke(issue);
+ dout(10) << "encode_inodestat issuing " << ccap_string(issue)
+ << " seq " << cap->get_last_seq()
+ << "(stale|new caps)" << dendl;
+ }
+
+ if (issue) {
+ cap->set_last_issue();
+ cap->set_last_issue_stamp(ceph_clock_now());
+ cap->clear_new();
+ ecap.caps = issue;
+ ecap.wanted = cap->wanted();
+ ecap.cap_id = cap->get_cap_id();
+ ecap.seq = cap->get_last_seq();
+ ecap.mseq = cap->get_mseq();
+ ecap.realm = realm->inode->ino();
+ } else {
+ ecap.cap_id = 0;
+ ecap.caps = 0;
+ ecap.seq = 0;
+ ecap.mseq = 0;
+ ecap.realm = 0;
+ ecap.wanted = 0;
+ }
+ }
+ ecap.flags = is_auth() ? CEPH_CAP_FLAG_AUTH : 0;
+ dout(10) << "encode_inodestat caps " << ccap_string(ecap.caps)
+ << " seq " << ecap.seq << " mseq " << ecap.mseq
+ << " xattrv " << xattr_version << " len " << xbl.length()
+ << dendl;
+
+ if (inline_data.length() && cap) {
+ if ((cap->pending() | getattr_caps) & CEPH_CAP_FILE_SHARED) {
+ dout(10) << "including inline version " << inline_version << dendl;
+ cap->client_inline_version = inline_version;
+ } else {
+ dout(10) << "dropping inline version " << inline_version << dendl;
+ inline_version = 0;
+ inline_data.clear();
+ }
+ }
+
+ // include those xattrs?
+ if (xbl.length() && cap) {
+ if ((cap->pending() | getattr_caps) & CEPH_CAP_XATTR_SHARED) {
+ dout(10) << "including xattrs version " << xattr_i->xattr_version << dendl;
+ cap->client_xattr_version = xattr_i->xattr_version;
+ } else {
+ dout(10) << "dropping xattrs version " << xattr_i->xattr_version << dendl;
+ xbl.clear(); // no xattrs .. XXX what's this about?!?
+ xattr_version = 0;
+ }
+ }
+
+ /*
+ * note: encoding matches MClientReply::InodeStat
+ */
+ ::encode(oi->ino, bl);
+ ::encode(snapid, bl);
+ ::encode(oi->rdev, bl);
+ ::encode(version, bl);
+
+ ::encode(xattr_version, bl);
+
+ ::encode(ecap, bl);
+ {
+ ceph_file_layout legacy_layout;
+ layout.to_legacy(&legacy_layout);
+ ::encode(legacy_layout, bl);
+ }
+ ::encode(any_i->ctime, bl);
+ ::encode(file_i->mtime, bl);
+ ::encode(file_i->atime, bl);
+ ::encode(file_i->time_warp_seq, bl);
+ ::encode(file_i->size, bl);
+ ::encode(max_size, bl);
+ ::encode(file_i->truncate_size, bl);
+ ::encode(file_i->truncate_seq, bl);
+
+ ::encode(auth_i->mode, bl);
+ ::encode((uint32_t)auth_i->uid, bl);
+ ::encode((uint32_t)auth_i->gid, bl);
+
+ ::encode(link_i->nlink, bl);
+
+ ::encode(file_i->dirstat.nfiles, bl);
+ ::encode(file_i->dirstat.nsubdirs, bl);
+ ::encode(file_i->rstat.rbytes, bl);
+ ::encode(file_i->rstat.rfiles, bl);
+ ::encode(file_i->rstat.rsubdirs, bl);
+ ::encode(file_i->rstat.rctime, bl);
+
+ dirfragtree.encode(bl);
+
+ ::encode(symlink, bl);
+ if (session->connection->has_feature(CEPH_FEATURE_DIRLAYOUTHASH)) {
+ ::encode(file_i->dir_layout, bl);
+ }
+ ::encode(xbl, bl);
+ if (session->connection->has_feature(CEPH_FEATURE_MDS_INLINE_DATA)) {
+ ::encode(inline_version, bl);
+ ::encode(inline_data, bl);
+ }
+ if (session->connection->has_feature(CEPH_FEATURE_MDS_QUOTA)) {
+ inode_t *policy_i = ppolicy ? pi : oi;
+ ::encode(policy_i->quota, bl);
+ }
+ if (session->connection->has_feature(CEPH_FEATURE_FS_FILE_LAYOUT_V2)) {
+ ::encode(layout.pool_ns, bl);
+ }
+ if (session->connection->has_feature(CEPH_FEATURE_FS_BTIME)) {
+ ::encode(any_i->btime, bl);
+ ::encode(any_i->change_attr, bl);
+ }
+
+ return valid;
+}
+
+void CInode::encode_cap_message(MClientCaps *m, Capability *cap)
+{
+ assert(cap);
+
+ client_t client = cap->get_client();
+
+ bool pfile = filelock.is_xlocked_by_client(client) || (cap->issued() & CEPH_CAP_FILE_EXCL);
+ bool pauth = authlock.is_xlocked_by_client(client);
+ bool plink = linklock.is_xlocked_by_client(client);
+ bool pxattr = xattrlock.is_xlocked_by_client(client);
+
+ inode_t *oi = &inode;
+ inode_t *pi = get_projected_inode();
+ inode_t *i = (pfile|pauth|plink|pxattr) ? pi : oi;
+
+ dout(20) << "encode_cap_message pfile " << pfile
+ << " pauth " << pauth << " plink " << plink << " pxattr " << pxattr
+ << " ctime " << i->ctime << dendl;
+
+ i = pfile ? pi:oi;
+ m->set_layout(i->layout);
+ m->size = i->size;
+ m->truncate_seq = i->truncate_seq;
+ m->truncate_size = i->truncate_size;
+ m->mtime = i->mtime;
+ m->atime = i->atime;
+ m->ctime = i->ctime;
+ m->change_attr = i->change_attr;
+ m->time_warp_seq = i->time_warp_seq;
+
+ if (cap->client_inline_version < i->inline_data.version) {
+ m->inline_version = cap->client_inline_version = i->inline_data.version;
+ if (i->inline_data.length() > 0)
+ m->inline_data = i->inline_data.get_data();
+ } else {
+ m->inline_version = 0;
+ }
+
+ // max_size is min of projected, actual.
+ uint64_t oldms = oi->client_ranges.count(client) ? oi->client_ranges[client].range.last : 0;
+ uint64_t newms = pi->client_ranges.count(client) ? pi->client_ranges[client].range.last : 0;
+ m->max_size = MIN(oldms, newms);
+
+ i = pauth ? pi:oi;
+ m->head.mode = i->mode;
+ m->head.uid = i->uid;
+ m->head.gid = i->gid;
+
+ i = plink ? pi:oi;
+ m->head.nlink = i->nlink;
+
+ i = pxattr ? pi:oi;
+ map<string,bufferptr> *ix = pxattr ? get_projected_xattrs() : &xattrs;
+ if ((cap->pending() & CEPH_CAP_XATTR_SHARED) &&
+ i->xattr_version > cap->client_xattr_version) {
+ dout(10) << " including xattrs v " << i->xattr_version << dendl;
+ ::encode(*ix, m->xattrbl);
+ m->head.xattr_version = i->xattr_version;
+ cap->client_xattr_version = i->xattr_version;
+ }
+}
+
+
+
+void CInode::_encode_base(bufferlist& bl, uint64_t features)
+{
+ ::encode(first, bl);
+ ::encode(inode, bl, features);
+ ::encode(symlink, bl);
+ ::encode(dirfragtree, bl);
+ ::encode(xattrs, bl);
+ ::encode(old_inodes, bl, features);
+ ::encode(damage_flags, bl);
+ encode_snap(bl);
+}
+void CInode::_decode_base(bufferlist::iterator& p)
+{
+ ::decode(first, p);
+ ::decode(inode, p);
+ ::decode(symlink, p);
+ ::decode(dirfragtree, p);
+ ::decode(xattrs, p);
+ ::decode(old_inodes, p);
+ ::decode(damage_flags, p);
+ decode_snap(p);
+}
+
+void CInode::_encode_locks_full(bufferlist& bl)
+{
+ ::encode(authlock, bl);
+ ::encode(linklock, bl);
+ ::encode(dirfragtreelock, bl);
+ ::encode(filelock, bl);
+ ::encode(xattrlock, bl);
+ ::encode(snaplock, bl);
+ ::encode(nestlock, bl);
+ ::encode(flocklock, bl);
+ ::encode(policylock, bl);
+
+ ::encode(loner_cap, bl);
+}
+void CInode::_decode_locks_full(bufferlist::iterator& p)
+{
+ ::decode(authlock, p);
+ ::decode(linklock, p);
+ ::decode(dirfragtreelock, p);
+ ::decode(filelock, p);
+ ::decode(xattrlock, p);
+ ::decode(snaplock, p);
+ ::decode(nestlock, p);
+ ::decode(flocklock, p);
+ ::decode(policylock, p);
+
+ ::decode(loner_cap, p);
+ set_loner_cap(loner_cap);
+ want_loner_cap = loner_cap; // for now, we'll eval() shortly.
+}
+
+void CInode::_encode_locks_state_for_replica(bufferlist& bl)
+{
+ authlock.encode_state_for_replica(bl);
+ linklock.encode_state_for_replica(bl);
+ dirfragtreelock.encode_state_for_replica(bl);
+ filelock.encode_state_for_replica(bl);
+ nestlock.encode_state_for_replica(bl);
+ xattrlock.encode_state_for_replica(bl);
+ snaplock.encode_state_for_replica(bl);
+ flocklock.encode_state_for_replica(bl);
+ policylock.encode_state_for_replica(bl);
+}
+void CInode::_encode_locks_state_for_rejoin(bufferlist& bl, int rep)
+{
+ authlock.encode_state_for_replica(bl);
+ linklock.encode_state_for_replica(bl);
+ dirfragtreelock.encode_state_for_rejoin(bl, rep);
+ filelock.encode_state_for_rejoin(bl, rep);
+ nestlock.encode_state_for_rejoin(bl, rep);
+ xattrlock.encode_state_for_replica(bl);
+ snaplock.encode_state_for_replica(bl);
+ flocklock.encode_state_for_replica(bl);
+ policylock.encode_state_for_replica(bl);
+}
+void CInode::_decode_locks_state(bufferlist::iterator& p, bool is_new)
+{
+ authlock.decode_state(p, is_new);
+ linklock.decode_state(p, is_new);
+ dirfragtreelock.decode_state(p, is_new);
+ filelock.decode_state(p, is_new);
+ nestlock.decode_state(p, is_new);
+ xattrlock.decode_state(p, is_new);
+ snaplock.decode_state(p, is_new);
+ flocklock.decode_state(p, is_new);
+ policylock.decode_state(p, is_new);
+}
+void CInode::_decode_locks_rejoin(bufferlist::iterator& p, list<MDSInternalContextBase*>& waiters,
+ list<SimpleLock*>& eval_locks)
+{
+ authlock.decode_state_rejoin(p, waiters);
+ linklock.decode_state_rejoin(p, waiters);
+ dirfragtreelock.decode_state_rejoin(p, waiters);
+ filelock.decode_state_rejoin(p, waiters);
+ nestlock.decode_state_rejoin(p, waiters);
+ xattrlock.decode_state_rejoin(p, waiters);
+ snaplock.decode_state_rejoin(p, waiters);
+ flocklock.decode_state_rejoin(p, waiters);
+ policylock.decode_state_rejoin(p, waiters);
+
+ if (!dirfragtreelock.is_stable() && !dirfragtreelock.is_wrlocked())
+ eval_locks.push_back(&dirfragtreelock);
+ if (!filelock.is_stable() && !filelock.is_wrlocked())
+ eval_locks.push_back(&filelock);
+ if (!nestlock.is_stable() && !nestlock.is_wrlocked())
+ eval_locks.push_back(&nestlock);
+}
+
+
+// IMPORT/EXPORT
+
+void CInode::encode_export(bufferlist& bl)
+{
+ ENCODE_START(5, 4, bl);
+ _encode_base(bl, mdcache->mds->mdsmap->get_up_features());
+
+ ::encode(state, bl);
+
+ ::encode(pop, bl);
+
+ ::encode(get_replicas(), bl);
+
+ // include scatterlock info for any bounding CDirs
+ bufferlist bounding;
+ if (inode.is_dir())
+ for (compact_map<frag_t,CDir*>::iterator p = dirfrags.begin();
+ p != dirfrags.end();
+ ++p) {
+ CDir *dir = p->second;
+ if (dir->state_test(CDir::STATE_EXPORTBOUND)) {
+ ::encode(p->first, bounding);
+ ::encode(dir->fnode.fragstat, bounding);
+ ::encode(dir->fnode.accounted_fragstat, bounding);
+ ::encode(dir->fnode.rstat, bounding);
+ ::encode(dir->fnode.accounted_rstat, bounding);
+ dout(10) << " encoded fragstat/rstat info for " << *dir << dendl;
+ }
+ }
+ ::encode(bounding, bl);
+
+ _encode_locks_full(bl);
+
+ _encode_file_locks(bl);
+
+ ENCODE_FINISH(bl);
+
+ get(PIN_TEMPEXPORTING);
+}
+
+void CInode::finish_export(utime_t now)
+{
+ state &= MASK_STATE_EXPORT_KEPT;
+
+ pop.zero(now);
+
+ // just in case!
+ //dirlock.clear_updated();
+
+ loner_cap = -1;
+
+ put(PIN_TEMPEXPORTING);
+}
+
+void CInode::decode_import(bufferlist::iterator& p,
+ LogSegment *ls)
+{
+ DECODE_START(5, p);
+
+ _decode_base(p);
+
+ unsigned s;
+ ::decode(s, p);
+ state_set(STATE_AUTH | (s & MASK_STATE_EXPORTED));
+
+ if (is_dirty()) {
+ get(PIN_DIRTY);
+ _mark_dirty(ls);
+ }
+ if (is_dirty_parent()) {
+ get(PIN_DIRTYPARENT);
+ _mark_dirty_parent(ls);
+ }
+
+ ::decode(pop, ceph_clock_now(), p);
+
+ ::decode(get_replicas(), p);
+ if (is_replicated())
+ get(PIN_REPLICATED);
+ replica_nonce = 0;
+
+ // decode fragstat info on bounding cdirs
+ bufferlist bounding;
+ ::decode(bounding, p);
+ bufferlist::iterator q = bounding.begin();
+ while (!q.end()) {
+ frag_t fg;
+ ::decode(fg, q);
+ CDir *dir = get_dirfrag(fg);
+ assert(dir); // we should have all bounds open
+
+ // Only take the remote's fragstat/rstat if we are non-auth for
+ // this dirfrag AND the lock is NOT in a scattered (MIX) state.
+ // We know lock is stable, and MIX is the only state in which
+ // the inode auth (who sent us this data) may not have the best
+ // info.
+
+ // HMM: Are there cases where dir->is_auth() is an insufficient
+ // check because the dirfrag is under migration? That implies
+ // it is frozen (and in a SYNC or LOCK state). FIXME.
+
+ if (dir->is_auth() ||
+ filelock.get_state() == LOCK_MIX) {
+ dout(10) << " skipped fragstat info for " << *dir << dendl;
+ frag_info_t f;
+ ::decode(f, q);
+ ::decode(f, q);
+ } else {
+ ::decode(dir->fnode.fragstat, q);
+ ::decode(dir->fnode.accounted_fragstat, q);
+ dout(10) << " took fragstat info for " << *dir << dendl;
+ }
+ if (dir->is_auth() ||
+ nestlock.get_state() == LOCK_MIX) {
+ dout(10) << " skipped rstat info for " << *dir << dendl;
+ nest_info_t n;
+ ::decode(n, q);
+ ::decode(n, q);
+ } else {
+ ::decode(dir->fnode.rstat, q);
+ ::decode(dir->fnode.accounted_rstat, q);
+ dout(10) << " took rstat info for " << *dir << dendl;
+ }
+ }
+
+ _decode_locks_full(p);
+
+ _decode_file_locks(p);
+
+ DECODE_FINISH(p);
+}
+
+
+void InodeStoreBase::dump(Formatter *f) const
+{
+ inode.dump(f);
+ f->dump_string("symlink", symlink);
+ f->open_array_section("old_inodes");
+ for (compact_map<snapid_t, old_inode_t>::const_iterator i = old_inodes.begin();
+ i != old_inodes.end(); ++i) {
+ f->open_object_section("old_inode");
+ {
+ // The key is the last snapid, the first is in the old_inode_t
+ f->dump_int("last", i->first);
+ i->second.dump(f);
+ }
+ f->close_section(); // old_inode
+ }
+ f->close_section(); // old_inodes
+
+ f->open_object_section("dirfragtree");
+ dirfragtree.dump(f);
+ f->close_section(); // dirfragtree
+}
+
+
+void InodeStore::generate_test_instances(list<InodeStore*> &ls)
+{
+ InodeStore *populated = new InodeStore;
+ populated->inode.ino = 0xdeadbeef;
+ populated->symlink = "rhubarb";
+ ls.push_back(populated);
+}
+
+void CInode::validate_disk_state(CInode::validated_data *results,
+ MDSInternalContext *fin)
+{
+ class ValidationContinuation : public MDSContinuation {
+ public:
+ MDSInternalContext *fin;
+ CInode *in;
+ CInode::validated_data *results;
+ bufferlist bl;
+ CInode *shadow_in;
+
+ enum {
+ START = 0,
+ BACKTRACE,
+ INODE,
+ DIRFRAGS
+ };
+
+ ValidationContinuation(CInode *i,
+ CInode::validated_data *data_r,
+ MDSInternalContext *fin_) :
+ MDSContinuation(i->mdcache->mds->server),
+ fin(fin_),
+ in(i),
+ results(data_r),
+ shadow_in(NULL) {
+ set_callback(START, static_cast<Continuation::stagePtr>(&ValidationContinuation::_start));
+ set_callback(BACKTRACE, static_cast<Continuation::stagePtr>(&ValidationContinuation::_backtrace));
+ set_callback(INODE, static_cast<Continuation::stagePtr>(&ValidationContinuation::_inode_disk));
+ set_callback(DIRFRAGS, static_cast<Continuation::stagePtr>(&ValidationContinuation::_dirfrags));
+ }
+
+ ~ValidationContinuation() override {
+ delete shadow_in;
+ }
+
+ /**
+ * Fetch backtrace and set tag if tag is non-empty
+ */
+ void fetch_backtrace_and_tag(CInode *in, std::string tag,
+ Context *fin, int *bt_r, bufferlist *bt)
+ {
+ const int64_t pool = in->get_backtrace_pool();
+ object_t oid = CInode::get_object_name(in->ino(), frag_t(), "");
+
+ ObjectOperation fetch;
+ fetch.getxattr("parent", bt, bt_r);
+ in->mdcache->mds->objecter->read(oid, object_locator_t(pool), fetch, CEPH_NOSNAP,
+ NULL, 0, fin);
+ if (!tag.empty()) {
+ ObjectOperation scrub_tag;
+ bufferlist tag_bl;
+ ::encode(tag, tag_bl);
+ scrub_tag.setxattr("scrub_tag", tag_bl);
+ SnapContext snapc;
+ in->mdcache->mds->objecter->mutate(oid, object_locator_t(pool), scrub_tag, snapc,
+ ceph::real_clock::now(),
+ 0, NULL);
+ }
+ }
+
+ bool _start(int rval) {
+ if (in->is_dirty()) {
+ MDCache *mdcache = in->mdcache;
+ inode_t& inode = in->inode;
+ dout(20) << "validating a dirty CInode; results will be inconclusive"
+ << dendl;
+ }
+ if (in->is_symlink()) {
+ // there's nothing to do for symlinks!
+ return true;
+ }
+
+ C_OnFinisher *conf = new C_OnFinisher(get_io_callback(BACKTRACE),
+ in->mdcache->mds->finisher);
+
+ // Whether we have a tag to apply depends on ScrubHeader (if one is
+ // present)
+ if (in->scrub_infop) {
+ // I'm a non-orphan, so look up my ScrubHeader via my linkage
+ const std::string &tag = in->scrub_infop->header->get_tag();
+ // Rather than using the usual CInode::fetch_backtrace,
+ // use a special variant that optionally writes a tag in the same
+ // operation.
+ fetch_backtrace_and_tag(in, tag, conf,
+ &results->backtrace.ondisk_read_retval, &bl);
+ } else {
+ // When we're invoked outside of ScrubStack we might be called
+ // on an orphaned inode like /
+ fetch_backtrace_and_tag(in, {}, conf,
+ &results->backtrace.ondisk_read_retval, &bl);
+ }
+ return false;
+ }
+
+ bool _backtrace(int rval) {
+ // set up basic result reporting and make sure we got the data
+ results->performed_validation = true; // at least, some of it!
+ results->backtrace.checked = true;
+
+ const int64_t pool = in->get_backtrace_pool();
+ inode_backtrace_t& memory_backtrace = results->backtrace.memory_value;
+ in->build_backtrace(pool, memory_backtrace);
+ bool equivalent, divergent;
+ int memory_newer;
+
+ MDCache *mdcache = in->mdcache; // For the benefit of dout
+ const inode_t& inode = in->inode; // For the benefit of dout
+
+ // Ignore rval because it's the result of a FAILOK operation
+ // from fetch_backtrace_and_tag: the real result is in
+ // backtrace.ondisk_read_retval
+ dout(20) << "ondisk_read_retval: " << results->backtrace.ondisk_read_retval << dendl;
+ if (results->backtrace.ondisk_read_retval != 0) {
+ results->backtrace.error_str << "failed to read off disk; see retval";
+ goto next;
+ }
+
+ // extract the backtrace, and compare it to a newly-constructed one
+ try {
+ bufferlist::iterator p = bl.begin();
+ ::decode(results->backtrace.ondisk_value, p);
+ dout(10) << "decoded " << bl.length() << " bytes of backtrace successfully" << dendl;
+ } catch (buffer::error&) {
+ if (results->backtrace.ondisk_read_retval == 0 && rval != 0) {
+ // Cases where something has clearly gone wrong with the overall
+ // fetch op, though we didn't get a nonzero rc from the getxattr
+ // operation. e.g. object missing.
+ results->backtrace.ondisk_read_retval = rval;
+ }
+ results->backtrace.error_str << "failed to decode on-disk backtrace ("
+ << bl.length() << " bytes)!";
+ goto next;
+ }
+
+ memory_newer = memory_backtrace.compare(results->backtrace.ondisk_value,
+ &equivalent, &divergent);
+
+ if (divergent || memory_newer < 0) {
+ // we're divergent, or on-disk version is newer
+ results->backtrace.error_str << "On-disk backtrace is divergent or newer";
+ } else {
+ results->backtrace.passed = true;
+ }
+next:
+
+ if (!results->backtrace.passed && in->scrub_infop->header->get_repair()) {
+ std::string path;
+ in->make_path_string(path);
+ in->mdcache->mds->clog->warn() << "bad backtrace on inode " << in->ino()
+ << "(" << path << "), rewriting it";
+ in->_mark_dirty_parent(in->mdcache->mds->mdlog->get_current_segment(),
+ false);
+ }
+
+ // If the inode's number was free in the InoTable, fix that
+ // (#15619)
+ {
+ InoTable *inotable = mdcache->mds->inotable;
+
+ dout(10) << "scrub: inotable ino = " << inode.ino << dendl;
+ dout(10) << "scrub: inotable free says "
+ << inotable->is_marked_free(inode.ino) << dendl;
+
+ if (inotable->is_marked_free(inode.ino)) {
+ LogChannelRef clog = in->mdcache->mds->clog;
+ clog->error() << "scrub: inode wrongly marked free: 0x" << std::hex
+ << inode.ino;
+
+ if (in->scrub_infop->header->get_repair()) {
+ bool repaired = inotable->repair(inode.ino);
+ if (repaired) {
+ clog->error() << "inode table repaired for inode: 0x" << std::hex
+ << inode.ino;
+
+ inotable->save();
+ } else {
+ clog->error() << "Cannot repair inotable while other operations"
+ " are in progress";
+ }
+ }
+ }
+ }
+
+ // quit if we're a file, or kick off directory checks otherwise
+ // TODO: validate on-disk inode for non-base directories
+ if (!in->is_dir()) {
+ return true;
+ }
+
+ return validate_directory_data();
+ }
+
+ bool validate_directory_data() {
+ assert(in->is_dir());
+
+ if (in->is_base()) {
+ shadow_in = new CInode(in->mdcache);
+ in->mdcache->create_unlinked_system_inode(shadow_in,
+ in->inode.ino,
+ in->inode.mode);
+ shadow_in->fetch(get_internal_callback(INODE));
+ return false;
+ } else {
+ results->inode.passed = true;
+ return check_dirfrag_rstats();
+ }
+ }
+
+ bool _inode_disk(int rval) {
+ results->inode.checked = true;
+ results->inode.ondisk_read_retval = rval;
+ results->inode.ondisk_value = shadow_in->inode;
+ results->inode.memory_value = in->inode;
+
+ inode_t& si = shadow_in->inode;
+ inode_t& i = in->inode;
+ if (si.version > i.version) {
+ // uh, what?
+ results->inode.error_str << "On-disk inode is newer than in-memory one!";
+ goto next;
+ } else {
+ bool divergent = false;
+ int r = i.compare(si, &divergent);
+ results->inode.passed = !divergent && r >= 0;
+ if (!results->inode.passed) {
+ results->inode.error_str <<
+ "On-disk inode is divergent or newer than in-memory one!";
+ goto next;
+ }
+ }
+next:
+ return check_dirfrag_rstats();
+ }
+
+ bool check_dirfrag_rstats() {
+ MDSGatherBuilder gather(g_ceph_context);
+ std::list<frag_t> frags;
+ in->dirfragtree.get_leaves(frags);
+ for (list<frag_t>::iterator p = frags.begin();
+ p != frags.end();
+ ++p) {
+ CDir *dir = in->get_or_open_dirfrag(in->mdcache, *p);
+ dir->scrub_info();
+ if (!dir->scrub_infop->header)
+ dir->scrub_infop->header = in->scrub_infop->header;
+ if (dir->is_complete()) {
+ dir->scrub_local();
+ } else {
+ dir->scrub_infop->need_scrub_local = true;
+ dir->fetch(gather.new_sub(), false);
+ }
+ }
+ if (gather.has_subs()) {
+ gather.set_finisher(get_internal_callback(DIRFRAGS));
+ gather.activate();
+ return false;
+ } else {
+ return immediate(DIRFRAGS, 0);
+ }
+ }
+
+ bool _dirfrags(int rval) {
+ int frags_errors = 0;
+ // basic reporting setup
+ results->raw_stats.checked = true;
+ results->raw_stats.ondisk_read_retval = rval;
+
+ results->raw_stats.memory_value.dirstat = in->inode.dirstat;
+ results->raw_stats.memory_value.rstat = in->inode.rstat;
+ frag_info_t& dir_info = results->raw_stats.ondisk_value.dirstat;
+ nest_info_t& nest_info = results->raw_stats.ondisk_value.rstat;
+
+ if (rval != 0) {
+ results->raw_stats.error_str << "Failed to read dirfrags off disk";
+ goto next;
+ }
+
+ // check each dirfrag...
+ for (compact_map<frag_t,CDir*>::iterator p = in->dirfrags.begin();
+ p != in->dirfrags.end();
+ ++p) {
+ CDir *dir = p->second;
+ assert(dir->get_version() > 0);
+ nest_info.add(dir->fnode.accounted_rstat);
+ dir_info.add(dir->fnode.accounted_fragstat);
+ if (dir->scrub_infop &&
+ dir->scrub_infop->pending_scrub_error) {
+ dir->scrub_infop->pending_scrub_error = false;
+ if (dir->scrub_infop->header->get_repair()) {
+ results->raw_stats.error_str
+ << "dirfrag(" << p->first << ") has bad stats (will be fixed); ";
+ } else {
+ results->raw_stats.error_str
+ << "dirfrag(" << p->first << ") has bad stats; ";
+ }
+ frags_errors++;
+ }
+ }
+ nest_info.rsubdirs++; // it gets one to account for self
+ // ...and that their sum matches our inode settings
+ if (!dir_info.same_sums(in->inode.dirstat) ||
+ !nest_info.same_sums(in->inode.rstat)) {
+ if (in->scrub_infop &&
+ in->scrub_infop->header->get_repair()) {
+ results->raw_stats.error_str
+ << "freshly-calculated rstats don't match existing ones (will be fixed)";
+ in->mdcache->repair_inode_stats(in);
+ } else {
+ results->raw_stats.error_str
+ << "freshly-calculated rstats don't match existing ones";
+ }
+ goto next;
+ }
+ if (frags_errors > 0)
+ goto next;
+
+ results->raw_stats.passed = true;
+next:
+ return true;
+ }
+
+ void _done() override {
+ if ((!results->raw_stats.checked || results->raw_stats.passed) &&
+ (!results->backtrace.checked || results->backtrace.passed) &&
+ (!results->inode.checked || results->inode.passed))
+ results->passed_validation = true;
+ if (fin) {
+ fin->complete(get_rval());
+ }
+ }
+ };
+
+
+ dout(10) << "scrub starting validate_disk_state on " << *this << dendl;
+ ValidationContinuation *vc = new ValidationContinuation(this,
+ results,
+ fin);
+ vc->begin();
+}
+
+void CInode::validated_data::dump(Formatter *f) const
+{
+ f->open_object_section("results");
+ {
+ f->dump_bool("performed_validation", performed_validation);
+ f->dump_bool("passed_validation", passed_validation);
+ f->open_object_section("backtrace");
+ {
+ f->dump_bool("checked", backtrace.checked);
+ f->dump_bool("passed", backtrace.passed);
+ f->dump_int("read_ret_val", backtrace.ondisk_read_retval);
+ f->dump_stream("ondisk_value") << backtrace.ondisk_value;
+ f->dump_stream("memoryvalue") << backtrace.memory_value;
+ f->dump_string("error_str", backtrace.error_str.str());
+ }
+ f->close_section(); // backtrace
+ f->open_object_section("raw_stats");
+ {
+ f->dump_bool("checked", raw_stats.checked);
+ f->dump_bool("passed", raw_stats.passed);
+ f->dump_int("read_ret_val", raw_stats.ondisk_read_retval);
+ f->dump_stream("ondisk_value.dirstat") << raw_stats.ondisk_value.dirstat;
+ f->dump_stream("ondisk_value.rstat") << raw_stats.ondisk_value.rstat;
+ f->dump_stream("memory_value.dirrstat") << raw_stats.memory_value.dirstat;
+ f->dump_stream("memory_value.rstat") << raw_stats.memory_value.rstat;
+ f->dump_string("error_str", raw_stats.error_str.str());
+ }
+ f->close_section(); // raw_stats
+ // dump failure return code
+ int rc = 0;
+ if (backtrace.checked && backtrace.ondisk_read_retval)
+ rc = backtrace.ondisk_read_retval;
+ if (inode.checked && inode.ondisk_read_retval)
+ rc = inode.ondisk_read_retval;
+ if (raw_stats.checked && raw_stats.ondisk_read_retval)
+ rc = raw_stats.ondisk_read_retval;
+ f->dump_int("return_code", rc);
+ }
+ f->close_section(); // results
+}
+
+void CInode::dump(Formatter *f) const
+{
+ InodeStoreBase::dump(f);
+
+ MDSCacheObject::dump(f);
+
+ f->open_object_section("versionlock");
+ versionlock.dump(f);
+ f->close_section();
+
+ f->open_object_section("authlock");
+ authlock.dump(f);
+ f->close_section();
+
+ f->open_object_section("linklock");
+ linklock.dump(f);
+ f->close_section();
+
+ f->open_object_section("dirfragtreelock");
+ dirfragtreelock.dump(f);
+ f->close_section();
+
+ f->open_object_section("filelock");
+ filelock.dump(f);
+ f->close_section();
+
+ f->open_object_section("xattrlock");
+ xattrlock.dump(f);
+ f->close_section();
+
+ f->open_object_section("snaplock");
+ snaplock.dump(f);
+ f->close_section();
+
+ f->open_object_section("nestlock");
+ nestlock.dump(f);
+ f->close_section();
+
+ f->open_object_section("flocklock");
+ flocklock.dump(f);
+ f->close_section();
+
+ f->open_object_section("policylock");
+ policylock.dump(f);
+ f->close_section();
+
+ f->open_array_section("states");
+ MDSCacheObject::dump_states(f);
+ if (state_test(STATE_EXPORTING))
+ f->dump_string("state", "exporting");
+ if (state_test(STATE_OPENINGDIR))
+ f->dump_string("state", "openingdir");
+ if (state_test(STATE_FREEZING))
+ f->dump_string("state", "freezing");
+ if (state_test(STATE_FROZEN))
+ f->dump_string("state", "frozen");
+ if (state_test(STATE_AMBIGUOUSAUTH))
+ f->dump_string("state", "ambiguousauth");
+ if (state_test(STATE_EXPORTINGCAPS))
+ f->dump_string("state", "exportingcaps");
+ if (state_test(STATE_NEEDSRECOVER))
+ f->dump_string("state", "needsrecover");
+ if (state_test(STATE_PURGING))
+ f->dump_string("state", "purging");
+ if (state_test(STATE_DIRTYPARENT))
+ f->dump_string("state", "dirtyparent");
+ if (state_test(STATE_DIRTYRSTAT))
+ f->dump_string("state", "dirtyrstat");
+ if (state_test(STATE_STRAYPINNED))
+ f->dump_string("state", "straypinned");
+ if (state_test(STATE_FROZENAUTHPIN))
+ f->dump_string("state", "frozenauthpin");
+ if (state_test(STATE_DIRTYPOOL))
+ f->dump_string("state", "dirtypool");
+ if (state_test(STATE_ORPHAN))
+ f->dump_string("state", "orphan");
+ if (state_test(STATE_MISSINGOBJS))
+ f->dump_string("state", "missingobjs");
+ f->close_section();
+
+ f->open_array_section("client_caps");
+ for (map<client_t,Capability*>::const_iterator it = client_caps.begin();
+ it != client_caps.end(); ++it) {
+ f->open_object_section("client_cap");
+ f->dump_int("client_id", it->first.v);
+ f->dump_string("pending", ccap_string(it->second->pending()));
+ f->dump_string("issued", ccap_string(it->second->issued()));
+ f->dump_string("wanted", ccap_string(it->second->wanted()));
+ f->dump_string("last_sent", ccap_string(it->second->get_last_sent()));
+ f->close_section();
+ }
+ f->close_section();
+
+ f->dump_int("loner", loner_cap.v);
+ f->dump_int("want_loner", want_loner_cap.v);
+
+ f->open_array_section("mds_caps_wanted");
+ for (compact_map<int,int>::const_iterator p = mds_caps_wanted.begin();
+ p != mds_caps_wanted.end(); ++p) {
+ f->open_object_section("mds_cap_wanted");
+ f->dump_int("rank", p->first);
+ f->dump_string("cap", ccap_string(p->second));
+ f->close_section();
+ }
+ f->close_section();
+}
+
+/****** Scrub Stuff *****/
+void CInode::scrub_info_create() const
+{
+ dout(25) << __func__ << dendl;
+ assert(!scrub_infop);
+
+ // break out of const-land to set up implicit initial state
+ CInode *me = const_cast<CInode*>(this);
+ inode_t *in = me->get_projected_inode();
+
+ scrub_info_t *si = new scrub_info_t();
+ si->scrub_start_stamp = si->last_scrub_stamp = in->last_scrub_stamp;
+ si->scrub_start_version = si->last_scrub_version = in->last_scrub_version;
+
+ me->scrub_infop = si;
+}
+
+void CInode::scrub_maybe_delete_info()
+{
+ if (scrub_infop &&
+ !scrub_infop->scrub_in_progress &&
+ !scrub_infop->last_scrub_dirty) {
+ delete scrub_infop;
+ scrub_infop = NULL;
+ }
+}
+
+void CInode::scrub_initialize(CDentry *scrub_parent,
+ const ScrubHeaderRefConst& header,
+ MDSInternalContextBase *f)
+{
+ dout(20) << __func__ << " with scrub_version " << get_version() << dendl;
+ assert(!scrub_is_in_progress());
+ scrub_info();
+ if (!scrub_infop)
+ scrub_infop = new scrub_info_t();
+
+ if (get_projected_inode()->is_dir()) {
+ // fill in dirfrag_stamps with initial state
+ std::list<frag_t> frags;
+ dirfragtree.get_leaves(frags);
+ for (std::list<frag_t>::iterator i = frags.begin();
+ i != frags.end();
+ ++i) {
+ if (header->get_force())
+ scrub_infop->dirfrag_stamps[*i].reset();
+ else
+ scrub_infop->dirfrag_stamps[*i];
+ }
+ }
+
+ if (scrub_parent)
+ scrub_parent->get(CDentry::PIN_SCRUBPARENT);
+ scrub_infop->scrub_parent = scrub_parent;
+ scrub_infop->on_finish = f;
+ scrub_infop->scrub_in_progress = true;
+ scrub_infop->children_scrubbed = false;
+ scrub_infop->header = header;
+
+ scrub_infop->scrub_start_version = get_version();
+ scrub_infop->scrub_start_stamp = ceph_clock_now();
+ // right now we don't handle remote inodes
+}
+
+int CInode::scrub_dirfrag_next(frag_t* out_dirfrag)
+{
+ dout(20) << __func__ << dendl;
+ assert(scrub_is_in_progress());
+
+ if (!is_dir()) {
+ return -ENOTDIR;
+ }
+
+ std::map<frag_t, scrub_stamp_info_t>::iterator i =
+ scrub_infop->dirfrag_stamps.begin();
+
+ while (i != scrub_infop->dirfrag_stamps.end()) {
+ if (i->second.scrub_start_version < scrub_infop->scrub_start_version) {
+ i->second.scrub_start_version = get_projected_version();
+ i->second.scrub_start_stamp = ceph_clock_now();
+ *out_dirfrag = i->first;
+ dout(20) << " return frag " << *out_dirfrag << dendl;
+ return 0;
+ }
+ ++i;
+ }
+
+ dout(20) << " no frags left, ENOENT " << dendl;
+ return ENOENT;
+}
+
+void CInode::scrub_dirfrags_scrubbing(list<frag_t>* out_dirfrags)
+{
+ assert(out_dirfrags != NULL);
+ assert(scrub_infop != NULL);
+
+ out_dirfrags->clear();
+ std::map<frag_t, scrub_stamp_info_t>::iterator i =
+ scrub_infop->dirfrag_stamps.begin();
+
+ while (i != scrub_infop->dirfrag_stamps.end()) {
+ if (i->second.scrub_start_version >= scrub_infop->scrub_start_version) {
+ if (i->second.last_scrub_version < scrub_infop->scrub_start_version)
+ out_dirfrags->push_back(i->first);
+ } else {
+ return;
+ }
+
+ ++i;
+ }
+}
+
+void CInode::scrub_dirfrag_finished(frag_t dirfrag)
+{
+ dout(20) << __func__ << " on frag " << dirfrag << dendl;
+ assert(scrub_is_in_progress());
+
+ std::map<frag_t, scrub_stamp_info_t>::iterator i =
+ scrub_infop->dirfrag_stamps.find(dirfrag);
+ assert(i != scrub_infop->dirfrag_stamps.end());
+
+ scrub_stamp_info_t &si = i->second;
+ si.last_scrub_stamp = si.scrub_start_stamp;
+ si.last_scrub_version = si.scrub_start_version;
+}
+
+void CInode::scrub_finished(MDSInternalContextBase **c) {
+ dout(20) << __func__ << dendl;
+ assert(scrub_is_in_progress());
+ for (std::map<frag_t, scrub_stamp_info_t>::iterator i =
+ scrub_infop->dirfrag_stamps.begin();
+ i != scrub_infop->dirfrag_stamps.end();
+ ++i) {
+ if(i->second.last_scrub_version != i->second.scrub_start_version) {
+ derr << i->second.last_scrub_version << " != "
+ << i->second.scrub_start_version << dendl;
+ }
+ assert(i->second.last_scrub_version == i->second.scrub_start_version);
+ }
+
+ scrub_infop->last_scrub_version = scrub_infop->scrub_start_version;
+ scrub_infop->last_scrub_stamp = scrub_infop->scrub_start_stamp;
+ scrub_infop->last_scrub_dirty = true;
+ scrub_infop->scrub_in_progress = false;
+
+ if (scrub_infop->scrub_parent) {
+ CDentry *dn = scrub_infop->scrub_parent;
+ scrub_infop->scrub_parent = NULL;
+ dn->dir->scrub_dentry_finished(dn);
+ dn->put(CDentry::PIN_SCRUBPARENT);
+ }
+
+ *c = scrub_infop->on_finish;
+ scrub_infop->on_finish = NULL;
+
+ if (scrub_infop->header->get_origin() == this) {
+ // We are at the point that a tagging scrub was initiated
+ LogChannelRef clog = mdcache->mds->clog;
+ clog->info() << "scrub complete with tag '" << scrub_infop->header->get_tag() << "'";
+ }
+}
+
+int64_t CInode::get_backtrace_pool() const
+{
+ if (is_dir()) {
+ return mdcache->mds->mdsmap->get_metadata_pool();
+ } else {
+ // Files are required to have an explicit layout that specifies
+ // a pool
+ assert(inode.layout.pool_id != -1);
+ return inode.layout.pool_id;
+ }
+}
+
+void CInode::maybe_export_pin(bool update)
+{
+ if (!g_conf->mds_bal_export_pin)
+ return;
+ if (!is_dir() || !is_normal())
+ return;
+
+ mds_rank_t export_pin = get_export_pin(false);
+ if (export_pin == MDS_RANK_NONE && !update)
+ return;
+
+ if (state_test(CInode::STATE_QUEUEDEXPORTPIN))
+ return;
+
+ bool queue = false;
+ for (auto p = dirfrags.begin(); p != dirfrags.end(); p++) {
+ CDir *dir = p->second;
+ if (!dir->is_auth())
+ continue;
+ if (export_pin != MDS_RANK_NONE) {
+ if (dir->is_subtree_root()) {
+ // set auxsubtree bit or export it
+ if (!dir->state_test(CDir::STATE_AUXSUBTREE) ||
+ export_pin != dir->get_dir_auth().first)
+ queue = true;
+ } else {
+ // create aux subtree or export it
+ queue = true;
+ }
+ } else {
+ // clear aux subtrees ?
+ queue = dir->state_test(CDir::STATE_AUXSUBTREE);
+ }
+ if (queue) {
+ state_set(CInode::STATE_QUEUEDEXPORTPIN);
+ mdcache->export_pin_queue.insert(this);
+ break;
+ }
+ }
+}
+
+void CInode::set_export_pin(mds_rank_t rank)
+{
+ assert(is_dir());
+ assert(is_projected());
+ get_projected_inode()->export_pin = rank;
+ maybe_export_pin(true);
+}
+
+mds_rank_t CInode::get_export_pin(bool inherit) const
+{
+ /* An inode that is export pinned may not necessarily be a subtree root, we
+ * need to traverse the parents. A base or system inode cannot be pinned.
+ * N.B. inodes not yet linked into a dir (i.e. anonymous inodes) will not
+ * have a parent yet.
+ */
+ for (const CInode *in = this; !in->is_base() && !in->is_system() && in->get_projected_parent_dn(); in = in->get_projected_parent_dn()->dir->inode) {
+ mds_rank_t pin = in->get_projected_inode()->export_pin;
+ if (pin >= 0) {
+ return pin;
+ }
+ if (!inherit) break;
+ }
+ return MDS_RANK_NONE;
+}
+
+bool CInode::is_exportable(mds_rank_t dest) const
+{
+ mds_rank_t pin = get_export_pin();
+ if (pin == dest) {
+ return true;
+ } else if (pin >= 0) {
+ return false;
+ } else {
+ return true;
+ }
+}
+
+MEMPOOL_DEFINE_OBJECT_FACTORY(CInode, co_inode, mds_co);
Code Review / stor4nfv.git / blobdiff