1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
2 // vim: ts=8 sw=2 smarttab
9 #include "MetaSession.h"
10 #include "ClientSnapRealm.h"
12 #include "mds/flock.h"
16 cap_item.remove_myself();
17 snaprealm_item.remove_myself();
20 snapdir_parent->flags &= ~I_SNAPDIR_OPEN;
21 snapdir_parent.reset();
24 if (!oset.objects.empty()) {
25 lsubdout(client->cct, client, 0) << __func__ << ": leftover objects on inode 0x"
26 << std::hex << ino << std::dec << dendl;
27 assert(oset.objects.empty());
34 ostream& operator<<(ostream &out, const Inode &in)
36 out << in.vino() << "("
37 << "faked_ino=" << in.faked_ino
39 << " ll_ref=" << in.ll_ref
40 << " cap_refs=" << in.cap_refs
41 << " open=" << in.open_by_mode
42 << " mode=" << oct << in.mode << dec
43 << " size=" << in.size << "/" << in.max_size
44 << " mtime=" << in.mtime
45 << " caps=" << ccap_string(in.caps_issued());
46 if (!in.caps.empty()) {
48 for (auto p = in.caps.begin(); p != in.caps.end(); ++p) {
49 if (p != in.caps.begin())
51 out << p->first << '=' << ccap_string(p->second->issued);
56 out << " dirty_caps=" << ccap_string(in.dirty_caps);
58 out << " flushing_caps=" << ccap_string(in.flushing_caps);
60 if (in.flags & I_COMPLETE)
64 out << " " << in.oset;
66 if (!in.dn_set.empty())
67 out << " parents=" << in.dn_set;
69 if (in.is_dir() && in.has_dir_layout())
70 out << " has_dir_layout";
72 if (in.quota.is_enable())
73 out << " " << in.quota;
75 out << ' ' << &in << ")";
80 void Inode::make_long_path(filepath& p)
82 if (!dn_set.empty()) {
83 assert((*dn_set.begin())->dir && (*dn_set.begin())->dir->parent_inode);
84 (*dn_set.begin())->dir->parent_inode->make_long_path(p);
85 p.push_dentry((*dn_set.begin())->name);
86 } else if (snapdir_parent) {
87 snapdir_parent->make_nosnap_relative_path(p);
95 * make a filepath suitable for an mds request:
96 * - if we are non-snapped/live, the ino is sufficient, e.g. #1234
97 * - if we are snapped, make filepath relative to first non-snapped parent.
99 void Inode::make_nosnap_relative_path(filepath& p)
101 if (snapid == CEPH_NOSNAP) {
103 } else if (snapdir_parent) {
104 snapdir_parent->make_nosnap_relative_path(p);
106 p.push_dentry(empty);
107 } else if (!dn_set.empty()) {
108 assert((*dn_set.begin())->dir && (*dn_set.begin())->dir->parent_inode);
109 (*dn_set.begin())->dir->parent_inode->make_nosnap_relative_path(p);
110 p.push_dentry((*dn_set.begin())->name);
116 void Inode::get_open_ref(int mode)
118 open_by_mode[mode]++;
121 bool Inode::put_open_ref(int mode)
123 //cout << "open_by_mode[" << mode << "] " << open_by_mode[mode] << " -> " << (open_by_mode[mode]-1) << std::endl;
124 if (--open_by_mode[mode] == 0)
129 void Inode::get_cap_ref(int cap)
136 //cout << "inode " << *this << " get " << cap_string(c) << " " << (cap_refs[c]-1) << " -> " << cap_refs[c] << std::endl;
143 int Inode::put_cap_ref(int cap)
145 // if cap is always a single bit (which it seems to be)
146 // all this logic is equivalent to:
147 // if (--cap_refs[c]) return false; else return true;
153 if (cap_refs[c] <= 0) {
154 lderr(client->cct) << "put_cap_ref " << ccap_string(c) << " went negative on " << *this << dendl;
155 assert(cap_refs[c] > 0);
157 if (--cap_refs[c] == 0)
159 //cout << "inode " << *this << " put " << cap_string(c) << " " << (cap_refs[c]+1) << " -> " << cap_refs[c] << std::endl;
167 bool Inode::is_any_caps()
169 return !caps.empty() || snap_caps;
172 bool Inode::cap_is_valid(Cap* cap) const
174 /*cout << "cap_gen " << cap->session-> cap_gen << std::endl
175 << "session gen " << cap->gen << std::endl
176 << "cap expire " << cap->session->cap_ttl << std::endl
177 << "cur time " << ceph_clock_now(cct) << std::endl;*/
178 if ((cap->session->cap_gen <= cap->gen)
179 && (ceph_clock_now() < cap->session->cap_ttl)) {
185 int Inode::caps_issued(int *implemented) const
189 for (map<mds_rank_t,Cap*>::const_iterator it = caps.begin();
192 if (cap_is_valid(it->second)) {
193 c |= it->second->issued;
194 i |= it->second->implemented;
201 void Inode::touch_cap(Cap *cap)
203 // move to back of LRU
204 cap->session->caps.push_back(&cap->cap_item);
207 void Inode::try_touch_cap(mds_rank_t mds)
210 touch_cap(caps[mds]);
213 bool Inode::caps_issued_mask(unsigned mask)
216 if ((c & mask) == mask)
220 cap_is_valid(auth_cap) &&
221 (auth_cap->issued & mask) == mask) {
226 for (map<mds_rank_t,Cap*>::iterator it = caps.begin();
229 if (cap_is_valid(it->second)) {
230 if ((it->second->issued & mask) == mask) {
231 touch_cap(it->second);
234 c |= it->second->issued;
237 if ((c & mask) == mask) {
238 // bah.. touch them all
239 for (map<mds_rank_t,Cap*>::iterator it = caps.begin();
242 touch_cap(it->second);
248 int Inode::caps_used()
251 for (map<int,int>::iterator p = cap_refs.begin();
259 int Inode::caps_file_wanted()
262 for (map<int,int>::iterator p = open_by_mode.begin();
263 p != open_by_mode.end();
266 want |= ceph_caps_for_mode(p->first);
270 int Inode::caps_wanted()
272 int want = caps_file_wanted() | caps_used();
273 if (want & CEPH_CAP_FILE_BUFFER)
274 want |= CEPH_CAP_FILE_EXCL;
278 int Inode::caps_mds_wanted()
281 for (auto it = caps.begin(); it != caps.end(); ++it)
282 want |= it->second->wanted;
286 int Inode::caps_dirty()
288 return dirty_caps | flushing_caps;
291 const UserPerm* Inode::get_best_perms()
293 const UserPerm *perms = NULL;
294 for (const auto ci : caps) {
295 const UserPerm& iperm = ci.second->latest_perms;
296 if (!perms) { // we don't have any, take what's present
298 } else if (iperm.uid() == uid) {
299 if (iperm.gid() == gid) { // we have the best possible, return
302 if (perms->uid() != uid) { // take uid > gid every time
305 } else if (perms->uid() != uid && iperm.gid() == gid) {
306 perms = &iperm; // a matching gid is better than nothing
312 bool Inode::have_valid_size()
314 // RD+RDCACHE or WR+WRBUFFER => valid size
315 if (caps_issued() & (CEPH_CAP_FILE_SHARED | CEPH_CAP_FILE_EXCL))
320 // open Dir for an inode. if it's not open, allocated it (and pin dentry in memory).
321 Dir *Inode::open_dir()
325 lsubdout(client->cct, client, 15) << "open_dir " << dir << " on " << this << dendl;
326 assert(dn_set.size() < 2); // dirs can't be hard-linked
328 (*dn_set.begin())->get(); // pin dentry
334 bool Inode::check_mode(const UserPerm& perms, unsigned want)
336 if (uid == perms.uid()) {
337 // if uid is owner, owner entry determines access
339 } else if (perms.gid_in_groups(gid)) {
340 // if a gid or sgid matches the owning group, group entry determines access
344 return (mode & want) == want;
349 lsubdout(client->cct, client, 15) << "inode.get on " << this << " " << ino << '.' << snapid
350 << " now " << _ref << dendl;
353 //private method to put a reference; see Client::put_inode()
354 int Inode::_put(int n) {
356 lsubdout(client->cct, client, 15) << "inode.put on " << this << " " << ino << '.' << snapid
357 << " now " << _ref << dendl;
363 void Inode::dump(Formatter *f) const
365 f->dump_stream("ino") << ino;
366 f->dump_stream("snapid") << snapid;
368 f->dump_unsigned("rdev", rdev);
369 f->dump_stream("ctime") << ctime;
370 f->dump_stream("btime") << btime;
371 f->dump_stream("mode") << '0' << std::oct << mode << std::dec;
372 f->dump_unsigned("uid", uid);
373 f->dump_unsigned("gid", gid);
374 f->dump_int("nlink", nlink);
376 f->dump_unsigned("size", size);
377 f->dump_unsigned("max_size", max_size);
378 f->dump_unsigned("truncate_seq", truncate_seq);
379 f->dump_unsigned("truncate_size", truncate_size);
380 f->dump_stream("mtime") << mtime;
381 f->dump_stream("atime") << atime;
382 f->dump_unsigned("time_warp_seq", time_warp_seq);
383 f->dump_unsigned("change_attr", change_attr);
385 f->dump_object("layout", layout);
387 f->open_object_section("dir_layout");
388 ::dump(dir_layout, f);
391 f->dump_bool("complete", flags & I_COMPLETE);
392 f->dump_bool("ordered", flags & I_DIR_ORDERED);
394 /* FIXME when wip-mds-encoding is merged ***
395 f->open_object_section("dir_stat");
399 f->open_object_section("rstat");
405 f->dump_unsigned("version", version);
406 f->dump_unsigned("xattr_version", xattr_version);
407 f->dump_unsigned("flags", flags);
410 if (!dir_contacts.empty()) {
411 f->open_object_section("dir_contants");
412 for (set<int>::iterator p = dir_contacts.begin(); p != dir_contacts.end(); ++p)
413 f->dump_int("mds", *p);
416 f->dump_int("dir_hashed", (int)dir_hashed);
417 f->dump_int("dir_replicated", (int)dir_replicated);
420 f->open_array_section("caps");
421 for (map<mds_rank_t,Cap*>::const_iterator p = caps.begin(); p != caps.end(); ++p) {
422 f->open_object_section("cap");
423 f->dump_int("mds", p->first);
424 if (p->second == auth_cap)
425 f->dump_int("auth", 1);
431 f->dump_int("auth_cap", auth_cap->session->mds_num);
433 f->dump_stream("dirty_caps") << ccap_string(dirty_caps);
435 f->dump_stream("flushings_caps") << ccap_string(flushing_caps);
436 f->open_object_section("flushing_cap_tid");
437 for (map<ceph_tid_t, int>::const_iterator p = flushing_cap_tids.begin();
438 p != flushing_cap_tids.end();
440 string n(ccap_string(p->second));
441 f->dump_unsigned(n.c_str(), p->first);
445 f->dump_int("shared_gen", shared_gen);
446 f->dump_int("cache_gen", cache_gen);
448 f->dump_int("snap_caps", snap_caps);
449 f->dump_int("snap_cap_refs", snap_cap_refs);
452 f->dump_stream("hold_caps_until") << hold_caps_until;
455 f->open_object_section("snaprealm");
459 if (!cap_snaps.empty()) {
460 for (const auto &p : cap_snaps) {
461 f->open_object_section("cap_snap");
462 f->dump_stream("follows") << p.first;
469 if (!open_by_mode.empty()) {
470 f->open_array_section("open_by_mode");
471 for (map<int,int>::const_iterator p = open_by_mode.begin(); p != open_by_mode.end(); ++p) {
472 f->open_object_section("ref");
473 f->dump_int("mode", p->first);
474 f->dump_int("refs", p->second);
479 if (!cap_refs.empty()) {
480 f->open_array_section("cap_refs");
481 for (map<int,int>::const_iterator p = cap_refs.begin(); p != cap_refs.end(); ++p) {
482 f->open_object_section("cap_ref");
483 f->dump_stream("cap") << ccap_string(p->first);
484 f->dump_int("refs", p->second);
490 f->dump_unsigned("reported_size", reported_size);
491 if (wanted_max_size != max_size)
492 f->dump_unsigned("wanted_max_size", wanted_max_size);
493 if (requested_max_size != max_size)
494 f->dump_unsigned("requested_max_size", requested_max_size);
496 f->dump_int("ref", _ref);
497 f->dump_int("ll_ref", ll_ref);
499 if (!dn_set.empty()) {
500 f->open_array_section("parents");
501 for (set<Dentry*>::const_iterator p = dn_set.begin(); p != dn_set.end(); ++p) {
502 f->open_object_section("dentry");
503 f->dump_stream("dir_ino") << (*p)->dir->parent_inode->ino;
504 f->dump_string("name", (*p)->name);
511 void Cap::dump(Formatter *f) const
513 f->dump_int("mds", session->mds_num);
514 f->dump_stream("ino") << inode->ino;
515 f->dump_unsigned("cap_id", cap_id);
516 f->dump_stream("issued") << ccap_string(issued);
517 if (implemented != issued)
518 f->dump_stream("implemented") << ccap_string(implemented);
519 f->dump_stream("wanted") << ccap_string(wanted);
520 f->dump_unsigned("seq", seq);
521 f->dump_unsigned("issue_seq", issue_seq);
522 f->dump_unsigned("mseq", mseq);
523 f->dump_unsigned("gen", gen);
526 void CapSnap::dump(Formatter *f) const
528 f->dump_stream("ino") << in->ino;
529 f->dump_stream("issued") << ccap_string(issued);
530 f->dump_stream("dirty") << ccap_string(dirty);
531 f->dump_unsigned("size", size);
532 f->dump_stream("ctime") << ctime;
533 f->dump_stream("mtime") << mtime;
534 f->dump_stream("atime") << atime;
535 f->dump_int("time_warp_seq", time_warp_seq);
536 f->dump_stream("mode") << '0' << std::oct << mode << std::dec;
537 f->dump_unsigned("uid", uid);
538 f->dump_unsigned("gid", gid);
539 if (!xattrs.empty()) {
540 f->open_object_section("xattr_lens");
541 for (map<string,bufferptr>::const_iterator p = xattrs.begin(); p != xattrs.end(); ++p)
542 f->dump_int(p->first.c_str(), p->second.length());
545 f->dump_unsigned("xattr_version", xattr_version);
546 f->dump_int("writing", (int)writing);
547 f->dump_int("dirty_data", (int)dirty_data);
548 f->dump_unsigned("flush_tid", flush_tid);
551 void Inode::set_async_err(int r)
553 for (const auto &fh : fhs) {