--- /dev/null
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "Client.h"
+#include "Inode.h"
+#include "Dentry.h"
+#include "Dir.h"
+#include "Fh.h"
+#include "MetaSession.h"
+#include "ClientSnapRealm.h"
+
+#include "mds/flock.h"
+
+Inode::~Inode()
+{
+ cap_item.remove_myself();
+ snaprealm_item.remove_myself();
+
+ if (snapdir_parent) {
+ snapdir_parent->flags &= ~I_SNAPDIR_OPEN;
+ snapdir_parent.reset();
+ }
+
+ if (!oset.objects.empty()) {
+ lsubdout(client->cct, client, 0) << __func__ << ": leftover objects on inode 0x"
+ << std::hex << ino << std::dec << dendl;
+ assert(oset.objects.empty());
+ }
+
+ delete fcntl_locks;
+ delete flock_locks;
+}
+
+ostream& operator<<(ostream &out, const Inode &in)
+{
+ out << in.vino() << "("
+ << "faked_ino=" << in.faked_ino
+ << " ref=" << in._ref
+ << " ll_ref=" << in.ll_ref
+ << " cap_refs=" << in.cap_refs
+ << " open=" << in.open_by_mode
+ << " mode=" << oct << in.mode << dec
+ << " size=" << in.size << "/" << in.max_size
+ << " mtime=" << in.mtime
+ << " caps=" << ccap_string(in.caps_issued());
+ if (!in.caps.empty()) {
+ out << "(";
+ for (auto p = in.caps.begin(); p != in.caps.end(); ++p) {
+ if (p != in.caps.begin())
+ out << ',';
+ out << p->first << '=' << ccap_string(p->second->issued);
+ }
+ out << ")";
+ }
+ if (in.dirty_caps)
+ out << " dirty_caps=" << ccap_string(in.dirty_caps);
+ if (in.flushing_caps)
+ out << " flushing_caps=" << ccap_string(in.flushing_caps);
+
+ if (in.flags & I_COMPLETE)
+ out << " COMPLETE";
+
+ if (in.is_file())
+ out << " " << in.oset;
+
+ if (!in.dn_set.empty())
+ out << " parents=" << in.dn_set;
+
+ if (in.is_dir() && in.has_dir_layout())
+ out << " has_dir_layout";
+
+ if (in.quota.is_enable())
+ out << " " << in.quota;
+
+ out << ' ' << &in << ")";
+ return out;
+}
+
+
+void Inode::make_long_path(filepath& p)
+{
+ if (!dn_set.empty()) {
+ assert((*dn_set.begin())->dir && (*dn_set.begin())->dir->parent_inode);
+ (*dn_set.begin())->dir->parent_inode->make_long_path(p);
+ p.push_dentry((*dn_set.begin())->name);
+ } else if (snapdir_parent) {
+ snapdir_parent->make_nosnap_relative_path(p);
+ string empty;
+ p.push_dentry(empty);
+ } else
+ p = filepath(ino);
+}
+
+/*
+ * make a filepath suitable for an mds request:
+ * - if we are non-snapped/live, the ino is sufficient, e.g. #1234
+ * - if we are snapped, make filepath relative to first non-snapped parent.
+ */
+void Inode::make_nosnap_relative_path(filepath& p)
+{
+ if (snapid == CEPH_NOSNAP) {
+ p = filepath(ino);
+ } else if (snapdir_parent) {
+ snapdir_parent->make_nosnap_relative_path(p);
+ string empty;
+ p.push_dentry(empty);
+ } else if (!dn_set.empty()) {
+ assert((*dn_set.begin())->dir && (*dn_set.begin())->dir->parent_inode);
+ (*dn_set.begin())->dir->parent_inode->make_nosnap_relative_path(p);
+ p.push_dentry((*dn_set.begin())->name);
+ } else {
+ p = filepath(ino);
+ }
+}
+
+void Inode::get_open_ref(int mode)
+{
+ open_by_mode[mode]++;
+}
+
+bool Inode::put_open_ref(int mode)
+{
+ //cout << "open_by_mode[" << mode << "] " << open_by_mode[mode] << " -> " << (open_by_mode[mode]-1) << std::endl;
+ if (--open_by_mode[mode] == 0)
+ return true;
+ return false;
+}
+
+void Inode::get_cap_ref(int cap)
+{
+ int n = 0;
+ while (cap) {
+ if (cap & 1) {
+ int c = 1 << n;
+ cap_refs[c]++;
+ //cout << "inode " << *this << " get " << cap_string(c) << " " << (cap_refs[c]-1) << " -> " << cap_refs[c] << std::endl;
+ }
+ cap >>= 1;
+ n++;
+ }
+}
+
+int Inode::put_cap_ref(int cap)
+{
+ // if cap is always a single bit (which it seems to be)
+ // all this logic is equivalent to:
+ // if (--cap_refs[c]) return false; else return true;
+ int last = 0;
+ int n = 0;
+ while (cap) {
+ if (cap & 1) {
+ int c = 1 << n;
+ if (cap_refs[c] <= 0) {
+ lderr(client->cct) << "put_cap_ref " << ccap_string(c) << " went negative on " << *this << dendl;
+ assert(cap_refs[c] > 0);
+ }
+ if (--cap_refs[c] == 0)
+ last |= c;
+ //cout << "inode " << *this << " put " << cap_string(c) << " " << (cap_refs[c]+1) << " -> " << cap_refs[c] << std::endl;
+ }
+ cap >>= 1;
+ n++;
+ }
+ return last;
+}
+
+bool Inode::is_any_caps()
+{
+ return !caps.empty() || snap_caps;
+}
+
+bool Inode::cap_is_valid(Cap* cap) const
+{
+ /*cout << "cap_gen " << cap->session-> cap_gen << std::endl
+ << "session gen " << cap->gen << std::endl
+ << "cap expire " << cap->session->cap_ttl << std::endl
+ << "cur time " << ceph_clock_now(cct) << std::endl;*/
+ if ((cap->session->cap_gen <= cap->gen)
+ && (ceph_clock_now() < cap->session->cap_ttl)) {
+ return true;
+ }
+ return false;
+}
+
+int Inode::caps_issued(int *implemented) const
+{
+ int c = snap_caps;
+ int i = 0;
+ for (map<mds_rank_t,Cap*>::const_iterator it = caps.begin();
+ it != caps.end();
+ ++it)
+ if (cap_is_valid(it->second)) {
+ c |= it->second->issued;
+ i |= it->second->implemented;
+ }
+ if (implemented)
+ *implemented = i;
+ return c;
+}
+
+void Inode::touch_cap(Cap *cap)
+{
+ // move to back of LRU
+ cap->session->caps.push_back(&cap->cap_item);
+}
+
+void Inode::try_touch_cap(mds_rank_t mds)
+{
+ if (caps.count(mds))
+ touch_cap(caps[mds]);
+}
+
+bool Inode::caps_issued_mask(unsigned mask)
+{
+ int c = snap_caps;
+ if ((c & mask) == mask)
+ return true;
+ // prefer auth cap
+ if (auth_cap &&
+ cap_is_valid(auth_cap) &&
+ (auth_cap->issued & mask) == mask) {
+ touch_cap(auth_cap);
+ return true;
+ }
+ // try any cap
+ for (map<mds_rank_t,Cap*>::iterator it = caps.begin();
+ it != caps.end();
+ ++it) {
+ if (cap_is_valid(it->second)) {
+ if ((it->second->issued & mask) == mask) {
+ touch_cap(it->second);
+ return true;
+ }
+ c |= it->second->issued;
+ }
+ }
+ if ((c & mask) == mask) {
+ // bah.. touch them all
+ for (map<mds_rank_t,Cap*>::iterator it = caps.begin();
+ it != caps.end();
+ ++it)
+ touch_cap(it->second);
+ return true;
+ }
+ return false;
+}
+
+int Inode::caps_used()
+{
+ int w = 0;
+ for (map<int,int>::iterator p = cap_refs.begin();
+ p != cap_refs.end();
+ ++p)
+ if (p->second)
+ w |= p->first;
+ return w;
+}
+
+int Inode::caps_file_wanted()
+{
+ int want = 0;
+ for (map<int,int>::iterator p = open_by_mode.begin();
+ p != open_by_mode.end();
+ ++p)
+ if (p->second)
+ want |= ceph_caps_for_mode(p->first);
+ return want;
+}
+
+int Inode::caps_wanted()
+{
+ int want = caps_file_wanted() | caps_used();
+ if (want & CEPH_CAP_FILE_BUFFER)
+ want |= CEPH_CAP_FILE_EXCL;
+ return want;
+}
+
+int Inode::caps_mds_wanted()
+{
+ int want = 0;
+ for (auto it = caps.begin(); it != caps.end(); ++it)
+ want |= it->second->wanted;
+ return want;
+}
+
+int Inode::caps_dirty()
+{
+ return dirty_caps | flushing_caps;
+}
+
+const UserPerm* Inode::get_best_perms()
+{
+ const UserPerm *perms = NULL;
+ for (const auto ci : caps) {
+ const UserPerm& iperm = ci.second->latest_perms;
+ if (!perms) { // we don't have any, take what's present
+ perms = &iperm;
+ } else if (iperm.uid() == uid) {
+ if (iperm.gid() == gid) { // we have the best possible, return
+ return &iperm;
+ }
+ if (perms->uid() != uid) { // take uid > gid every time
+ perms = &iperm;
+ }
+ } else if (perms->uid() != uid && iperm.gid() == gid) {
+ perms = &iperm; // a matching gid is better than nothing
+ }
+ }
+ return perms;
+}
+
+bool Inode::have_valid_size()
+{
+ // RD+RDCACHE or WR+WRBUFFER => valid size
+ if (caps_issued() & (CEPH_CAP_FILE_SHARED | CEPH_CAP_FILE_EXCL))
+ return true;
+ return false;
+}
+
+// open Dir for an inode. if it's not open, allocated it (and pin dentry in memory).
+Dir *Inode::open_dir()
+{
+ if (!dir) {
+ dir = new Dir(this);
+ lsubdout(client->cct, client, 15) << "open_dir " << dir << " on " << this << dendl;
+ assert(dn_set.size() < 2); // dirs can't be hard-linked
+ if (!dn_set.empty())
+ (*dn_set.begin())->get(); // pin dentry
+ get(); // pin inode
+ }
+ return dir;
+}
+
+bool Inode::check_mode(const UserPerm& perms, unsigned want)
+{
+ if (uid == perms.uid()) {
+ // if uid is owner, owner entry determines access
+ want = want << 6;
+ } else if (perms.gid_in_groups(gid)) {
+ // if a gid or sgid matches the owning group, group entry determines access
+ want = want << 3;
+ }
+
+ return (mode & want) == want;
+}
+
+void Inode::get() {
+ _ref++;
+ lsubdout(client->cct, client, 15) << "inode.get on " << this << " " << ino << '.' << snapid
+ << " now " << _ref << dendl;
+}
+
+//private method to put a reference; see Client::put_inode()
+int Inode::_put(int n) {
+ _ref -= n;
+ lsubdout(client->cct, client, 15) << "inode.put on " << this << " " << ino << '.' << snapid
+ << " now " << _ref << dendl;
+ assert(_ref >= 0);
+ return _ref;
+}
+
+
+void Inode::dump(Formatter *f) const
+{
+ f->dump_stream("ino") << ino;
+ f->dump_stream("snapid") << snapid;
+ if (rdev)
+ f->dump_unsigned("rdev", rdev);
+ f->dump_stream("ctime") << ctime;
+ f->dump_stream("btime") << btime;
+ f->dump_stream("mode") << '0' << std::oct << mode << std::dec;
+ f->dump_unsigned("uid", uid);
+ f->dump_unsigned("gid", gid);
+ f->dump_int("nlink", nlink);
+
+ f->dump_unsigned("size", size);
+ f->dump_unsigned("max_size", max_size);
+ f->dump_unsigned("truncate_seq", truncate_seq);
+ f->dump_unsigned("truncate_size", truncate_size);
+ f->dump_stream("mtime") << mtime;
+ f->dump_stream("atime") << atime;
+ f->dump_unsigned("time_warp_seq", time_warp_seq);
+ f->dump_unsigned("change_attr", change_attr);
+
+ f->dump_object("layout", layout);
+ if (is_dir()) {
+ f->open_object_section("dir_layout");
+ ::dump(dir_layout, f);
+ f->close_section();
+
+ f->dump_bool("complete", flags & I_COMPLETE);
+ f->dump_bool("ordered", flags & I_DIR_ORDERED);
+
+ /* FIXME when wip-mds-encoding is merged ***
+ f->open_object_section("dir_stat");
+ dirstat.dump(f);
+ f->close_section();
+
+ f->open_object_section("rstat");
+ rstat.dump(f);
+ f->close_section();
+ */
+ }
+
+ f->dump_unsigned("version", version);
+ f->dump_unsigned("xattr_version", xattr_version);
+ f->dump_unsigned("flags", flags);
+
+ if (is_dir()) {
+ if (!dir_contacts.empty()) {
+ f->open_object_section("dir_contants");
+ for (set<int>::iterator p = dir_contacts.begin(); p != dir_contacts.end(); ++p)
+ f->dump_int("mds", *p);
+ f->close_section();
+ }
+ f->dump_int("dir_hashed", (int)dir_hashed);
+ f->dump_int("dir_replicated", (int)dir_replicated);
+ }
+
+ f->open_array_section("caps");
+ for (map<mds_rank_t,Cap*>::const_iterator p = caps.begin(); p != caps.end(); ++p) {
+ f->open_object_section("cap");
+ f->dump_int("mds", p->first);
+ if (p->second == auth_cap)
+ f->dump_int("auth", 1);
+ p->second->dump(f);
+ f->close_section();
+ }
+ f->close_section();
+ if (auth_cap)
+ f->dump_int("auth_cap", auth_cap->session->mds_num);
+
+ f->dump_stream("dirty_caps") << ccap_string(dirty_caps);
+ if (flushing_caps) {
+ f->dump_stream("flushings_caps") << ccap_string(flushing_caps);
+ f->open_object_section("flushing_cap_tid");
+ for (map<ceph_tid_t, int>::const_iterator p = flushing_cap_tids.begin();
+ p != flushing_cap_tids.end();
+ ++p) {
+ string n(ccap_string(p->second));
+ f->dump_unsigned(n.c_str(), p->first);
+ }
+ f->close_section();
+ }
+ f->dump_int("shared_gen", shared_gen);
+ f->dump_int("cache_gen", cache_gen);
+ if (snap_caps) {
+ f->dump_int("snap_caps", snap_caps);
+ f->dump_int("snap_cap_refs", snap_cap_refs);
+ }
+
+ f->dump_stream("hold_caps_until") << hold_caps_until;
+
+ if (snaprealm) {
+ f->open_object_section("snaprealm");
+ snaprealm->dump(f);
+ f->close_section();
+ }
+ if (!cap_snaps.empty()) {
+ for (const auto &p : cap_snaps) {
+ f->open_object_section("cap_snap");
+ f->dump_stream("follows") << p.first;
+ p.second.dump(f);
+ f->close_section();
+ }
+ }
+
+ // open
+ if (!open_by_mode.empty()) {
+ f->open_array_section("open_by_mode");
+ for (map<int,int>::const_iterator p = open_by_mode.begin(); p != open_by_mode.end(); ++p) {
+ f->open_object_section("ref");
+ f->dump_int("mode", p->first);
+ f->dump_int("refs", p->second);
+ f->close_section();
+ }
+ f->close_section();
+ }
+ if (!cap_refs.empty()) {
+ f->open_array_section("cap_refs");
+ for (map<int,int>::const_iterator p = cap_refs.begin(); p != cap_refs.end(); ++p) {
+ f->open_object_section("cap_ref");
+ f->dump_stream("cap") << ccap_string(p->first);
+ f->dump_int("refs", p->second);
+ f->close_section();
+ }
+ f->close_section();
+ }
+
+ f->dump_unsigned("reported_size", reported_size);
+ if (wanted_max_size != max_size)
+ f->dump_unsigned("wanted_max_size", wanted_max_size);
+ if (requested_max_size != max_size)
+ f->dump_unsigned("requested_max_size", requested_max_size);
+
+ f->dump_int("ref", _ref);
+ f->dump_int("ll_ref", ll_ref);
+
+ if (!dn_set.empty()) {
+ f->open_array_section("parents");
+ for (set<Dentry*>::const_iterator p = dn_set.begin(); p != dn_set.end(); ++p) {
+ f->open_object_section("dentry");
+ f->dump_stream("dir_ino") << (*p)->dir->parent_inode->ino;
+ f->dump_string("name", (*p)->name);
+ f->close_section();
+ }
+ f->close_section();
+ }
+}
+
+void Cap::dump(Formatter *f) const
+{
+ f->dump_int("mds", session->mds_num);
+ f->dump_stream("ino") << inode->ino;
+ f->dump_unsigned("cap_id", cap_id);
+ f->dump_stream("issued") << ccap_string(issued);
+ if (implemented != issued)
+ f->dump_stream("implemented") << ccap_string(implemented);
+ f->dump_stream("wanted") << ccap_string(wanted);
+ f->dump_unsigned("seq", seq);
+ f->dump_unsigned("issue_seq", issue_seq);
+ f->dump_unsigned("mseq", mseq);
+ f->dump_unsigned("gen", gen);
+}
+
+void CapSnap::dump(Formatter *f) const
+{
+ f->dump_stream("ino") << in->ino;
+ f->dump_stream("issued") << ccap_string(issued);
+ f->dump_stream("dirty") << ccap_string(dirty);
+ f->dump_unsigned("size", size);
+ f->dump_stream("ctime") << ctime;
+ f->dump_stream("mtime") << mtime;
+ f->dump_stream("atime") << atime;
+ f->dump_int("time_warp_seq", time_warp_seq);
+ f->dump_stream("mode") << '0' << std::oct << mode << std::dec;
+ f->dump_unsigned("uid", uid);
+ f->dump_unsigned("gid", gid);
+ if (!xattrs.empty()) {
+ f->open_object_section("xattr_lens");
+ for (map<string,bufferptr>::const_iterator p = xattrs.begin(); p != xattrs.end(); ++p)
+ f->dump_int(p->first.c_str(), p->second.length());
+ f->close_section();
+ }
+ f->dump_unsigned("xattr_version", xattr_version);
+ f->dump_int("writing", (int)writing);
+ f->dump_int("dirty_data", (int)dirty_data);
+ f->dump_unsigned("flush_tid", flush_tid);
+}
+
+void Inode::set_async_err(int r)
+{
+ for (const auto &fh : fhs) {
+ fh->async_err = r;
+ }
+}
+
Code Review / stor4nfv.git / blobdiff