+++ /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;
- }
-}
-
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