Lines Matching refs:lkb
78 static int send_request(struct dlm_rsb *r, struct dlm_lkb *lkb);
79 static int send_convert(struct dlm_rsb *r, struct dlm_lkb *lkb);
80 static int send_unlock(struct dlm_rsb *r, struct dlm_lkb *lkb);
81 static int send_cancel(struct dlm_rsb *r, struct dlm_lkb *lkb);
82 static int send_grant(struct dlm_rsb *r, struct dlm_lkb *lkb);
83 static int send_bast(struct dlm_rsb *r, struct dlm_lkb *lkb, int mode);
84 static int send_lookup(struct dlm_rsb *r, struct dlm_lkb *lkb);
86 static int _request_lock(struct dlm_rsb *r, struct dlm_lkb *lkb);
87 static int _cancel_lock(struct dlm_rsb *r, struct dlm_lkb *lkb);
88 static void __receive_convert_reply(struct dlm_rsb *r, struct dlm_lkb *lkb,
92 static void del_timeout(struct dlm_lkb *lkb);
162 void dlm_print_lkb(struct dlm_lkb *lkb) in dlm_print_lkb() argument
166 lkb->lkb_nodeid, lkb->lkb_id, lkb->lkb_remid, lkb->lkb_exflags, in dlm_print_lkb()
167 lkb->lkb_flags, lkb->lkb_status, lkb->lkb_rqmode, in dlm_print_lkb()
168 lkb->lkb_grmode, lkb->lkb_wait_type, lkb->lkb_wait_nodeid, in dlm_print_lkb()
169 (unsigned long long)lkb->lkb_recover_seq); in dlm_print_lkb()
183 struct dlm_lkb *lkb; in dlm_dump_rsb() local
190 list_for_each_entry(lkb, &r->res_lookup, lkb_rsb_lookup) in dlm_dump_rsb()
191 dlm_print_lkb(lkb); in dlm_dump_rsb()
193 list_for_each_entry(lkb, &r->res_grantqueue, lkb_statequeue) in dlm_dump_rsb()
194 dlm_print_lkb(lkb); in dlm_dump_rsb()
196 list_for_each_entry(lkb, &r->res_convertqueue, lkb_statequeue) in dlm_dump_rsb()
197 dlm_print_lkb(lkb); in dlm_dump_rsb()
199 list_for_each_entry(lkb, &r->res_waitqueue, lkb_statequeue) in dlm_dump_rsb()
200 dlm_print_lkb(lkb); in dlm_dump_rsb()
220 static inline int can_be_queued(struct dlm_lkb *lkb) in can_be_queued() argument
222 return !(lkb->lkb_exflags & DLM_LKF_NOQUEUE); in can_be_queued()
225 static inline int force_blocking_asts(struct dlm_lkb *lkb) in force_blocking_asts() argument
227 return (lkb->lkb_exflags & DLM_LKF_NOQUEUEBAST); in force_blocking_asts()
230 static inline int is_demoted(struct dlm_lkb *lkb) in is_demoted() argument
232 return (lkb->lkb_sbflags & DLM_SBF_DEMOTED); in is_demoted()
235 static inline int is_altmode(struct dlm_lkb *lkb) in is_altmode() argument
237 return (lkb->lkb_sbflags & DLM_SBF_ALTMODE); in is_altmode()
240 static inline int is_granted(struct dlm_lkb *lkb) in is_granted() argument
242 return (lkb->lkb_status == DLM_LKSTS_GRANTED); in is_granted()
251 static inline int is_process_copy(struct dlm_lkb *lkb) in is_process_copy() argument
253 return (lkb->lkb_nodeid && !(lkb->lkb_flags & DLM_IFL_MSTCPY)); in is_process_copy()
256 static inline int is_master_copy(struct dlm_lkb *lkb) in is_master_copy() argument
258 return (lkb->lkb_flags & DLM_IFL_MSTCPY) ? 1 : 0; in is_master_copy()
261 static inline int middle_conversion(struct dlm_lkb *lkb) in middle_conversion() argument
263 if ((lkb->lkb_grmode==DLM_LOCK_PR && lkb->lkb_rqmode==DLM_LOCK_CW) || in middle_conversion()
264 (lkb->lkb_rqmode==DLM_LOCK_PR && lkb->lkb_grmode==DLM_LOCK_CW)) in middle_conversion()
269 static inline int down_conversion(struct dlm_lkb *lkb) in down_conversion() argument
271 return (!middle_conversion(lkb) && lkb->lkb_rqmode < lkb->lkb_grmode); in down_conversion()
274 static inline int is_overlap_unlock(struct dlm_lkb *lkb) in is_overlap_unlock() argument
276 return lkb->lkb_flags & DLM_IFL_OVERLAP_UNLOCK; in is_overlap_unlock()
279 static inline int is_overlap_cancel(struct dlm_lkb *lkb) in is_overlap_cancel() argument
281 return lkb->lkb_flags & DLM_IFL_OVERLAP_CANCEL; in is_overlap_cancel()
284 static inline int is_overlap(struct dlm_lkb *lkb) in is_overlap() argument
286 return (lkb->lkb_flags & (DLM_IFL_OVERLAP_UNLOCK | in is_overlap()
290 static void queue_cast(struct dlm_rsb *r, struct dlm_lkb *lkb, int rv) in queue_cast() argument
292 if (is_master_copy(lkb)) in queue_cast()
295 del_timeout(lkb); in queue_cast()
297 DLM_ASSERT(lkb->lkb_lksb, dlm_print_lkb(lkb);); in queue_cast()
301 if (rv == -DLM_ECANCEL && (lkb->lkb_flags & DLM_IFL_TIMEOUT_CANCEL)) { in queue_cast()
302 lkb->lkb_flags &= ~DLM_IFL_TIMEOUT_CANCEL; in queue_cast()
306 if (rv == -DLM_ECANCEL && (lkb->lkb_flags & DLM_IFL_DEADLOCK_CANCEL)) { in queue_cast()
307 lkb->lkb_flags &= ~DLM_IFL_DEADLOCK_CANCEL; in queue_cast()
311 dlm_add_cb(lkb, DLM_CB_CAST, lkb->lkb_grmode, rv, lkb->lkb_sbflags); in queue_cast()
314 static inline void queue_cast_overlap(struct dlm_rsb *r, struct dlm_lkb *lkb) in queue_cast_overlap() argument
316 queue_cast(r, lkb, in queue_cast_overlap()
317 is_overlap_unlock(lkb) ? -DLM_EUNLOCK : -DLM_ECANCEL); in queue_cast_overlap()
320 static void queue_bast(struct dlm_rsb *r, struct dlm_lkb *lkb, int rqmode) in queue_bast() argument
322 if (is_master_copy(lkb)) { in queue_bast()
323 send_bast(r, lkb, rqmode); in queue_bast()
325 dlm_add_cb(lkb, DLM_CB_BAST, rqmode, 0, 0); in queue_bast()
1169 static void attach_lkb(struct dlm_rsb *r, struct dlm_lkb *lkb) in attach_lkb() argument
1172 lkb->lkb_resource = r; in attach_lkb()
1175 static void detach_lkb(struct dlm_lkb *lkb) in detach_lkb() argument
1177 if (lkb->lkb_resource) { in detach_lkb()
1178 put_rsb(lkb->lkb_resource); in detach_lkb()
1179 lkb->lkb_resource = NULL; in detach_lkb()
1185 struct dlm_lkb *lkb; in create_lkb() local
1188 lkb = dlm_allocate_lkb(ls); in create_lkb()
1189 if (!lkb) in create_lkb()
1192 lkb->lkb_nodeid = -1; in create_lkb()
1193 lkb->lkb_grmode = DLM_LOCK_IV; in create_lkb()
1194 kref_init(&lkb->lkb_ref); in create_lkb()
1195 INIT_LIST_HEAD(&lkb->lkb_ownqueue); in create_lkb()
1196 INIT_LIST_HEAD(&lkb->lkb_rsb_lookup); in create_lkb()
1197 INIT_LIST_HEAD(&lkb->lkb_time_list); in create_lkb()
1198 INIT_LIST_HEAD(&lkb->lkb_cb_list); in create_lkb()
1199 mutex_init(&lkb->lkb_cb_mutex); in create_lkb()
1200 INIT_WORK(&lkb->lkb_cb_work, dlm_callback_work); in create_lkb()
1204 rv = idr_alloc(&ls->ls_lkbidr, lkb, 1, 0, GFP_NOWAIT); in create_lkb()
1206 lkb->lkb_id = rv; in create_lkb()
1215 *lkb_ret = lkb; in create_lkb()
1221 struct dlm_lkb *lkb; in find_lkb() local
1224 lkb = idr_find(&ls->ls_lkbidr, lkid); in find_lkb()
1225 if (lkb) in find_lkb()
1226 kref_get(&lkb->lkb_ref); in find_lkb()
1229 *lkb_ret = lkb; in find_lkb()
1230 return lkb ? 0 : -ENOENT; in find_lkb()
1235 struct dlm_lkb *lkb = container_of(kref, struct dlm_lkb, lkb_ref); in kill_lkb() local
1240 DLM_ASSERT(!lkb->lkb_status, dlm_print_lkb(lkb);); in kill_lkb()
1246 static int __put_lkb(struct dlm_ls *ls, struct dlm_lkb *lkb) in __put_lkb() argument
1248 uint32_t lkid = lkb->lkb_id; in __put_lkb()
1251 if (kref_put(&lkb->lkb_ref, kill_lkb)) { in __put_lkb()
1255 detach_lkb(lkb); in __put_lkb()
1258 if (lkb->lkb_lvbptr && is_master_copy(lkb)) in __put_lkb()
1259 dlm_free_lvb(lkb->lkb_lvbptr); in __put_lkb()
1260 dlm_free_lkb(lkb); in __put_lkb()
1268 int dlm_put_lkb(struct dlm_lkb *lkb) in dlm_put_lkb() argument
1272 DLM_ASSERT(lkb->lkb_resource, dlm_print_lkb(lkb);); in dlm_put_lkb()
1273 DLM_ASSERT(lkb->lkb_resource->res_ls, dlm_print_lkb(lkb);); in dlm_put_lkb()
1275 ls = lkb->lkb_resource->res_ls; in dlm_put_lkb()
1276 return __put_lkb(ls, lkb); in dlm_put_lkb()
1282 static inline void hold_lkb(struct dlm_lkb *lkb) in hold_lkb() argument
1284 kref_get(&lkb->lkb_ref); in hold_lkb()
1292 static inline void unhold_lkb(struct dlm_lkb *lkb) in unhold_lkb() argument
1295 rv = kref_put(&lkb->lkb_ref, kill_lkb); in unhold_lkb()
1296 DLM_ASSERT(!rv, dlm_print_lkb(lkb);); in unhold_lkb()
1302 struct dlm_lkb *lkb = NULL; in lkb_add_ordered() local
1304 list_for_each_entry(lkb, head, lkb_statequeue) in lkb_add_ordered()
1305 if (lkb->lkb_rqmode < mode) in lkb_add_ordered()
1308 __list_add(new, lkb->lkb_statequeue.prev, &lkb->lkb_statequeue); in lkb_add_ordered()
1313 static void add_lkb(struct dlm_rsb *r, struct dlm_lkb *lkb, int status) in add_lkb() argument
1315 kref_get(&lkb->lkb_ref); in add_lkb()
1317 DLM_ASSERT(!lkb->lkb_status, dlm_print_lkb(lkb);); in add_lkb()
1319 lkb->lkb_timestamp = ktime_get(); in add_lkb()
1321 lkb->lkb_status = status; in add_lkb()
1325 if (lkb->lkb_exflags & DLM_LKF_HEADQUE) in add_lkb()
1326 list_add(&lkb->lkb_statequeue, &r->res_waitqueue); in add_lkb()
1328 list_add_tail(&lkb->lkb_statequeue, &r->res_waitqueue); in add_lkb()
1332 lkb_add_ordered(&lkb->lkb_statequeue, &r->res_grantqueue, in add_lkb()
1333 lkb->lkb_grmode); in add_lkb()
1336 if (lkb->lkb_exflags & DLM_LKF_HEADQUE) in add_lkb()
1337 list_add(&lkb->lkb_statequeue, &r->res_convertqueue); in add_lkb()
1339 list_add_tail(&lkb->lkb_statequeue, in add_lkb()
1343 DLM_ASSERT(0, dlm_print_lkb(lkb); printk("sts=%d\n", status);); in add_lkb()
1347 static void del_lkb(struct dlm_rsb *r, struct dlm_lkb *lkb) in del_lkb() argument
1349 lkb->lkb_status = 0; in del_lkb()
1350 list_del(&lkb->lkb_statequeue); in del_lkb()
1351 unhold_lkb(lkb); in del_lkb()
1354 static void move_lkb(struct dlm_rsb *r, struct dlm_lkb *lkb, int sts) in move_lkb() argument
1356 hold_lkb(lkb); in move_lkb()
1357 del_lkb(r, lkb); in move_lkb()
1358 add_lkb(r, lkb, sts); in move_lkb()
1359 unhold_lkb(lkb); in move_lkb()
1396 struct dlm_lkb *lkb; in dlm_scan_waiters() local
1409 list_for_each_entry(lkb, &ls->ls_waiters, lkb_wait_reply) { in dlm_scan_waiters()
1410 if (!lkb->lkb_wait_time) in dlm_scan_waiters()
1415 us = ktime_to_us(ktime_sub(ktime_get(), lkb->lkb_wait_time)); in dlm_scan_waiters()
1420 lkb->lkb_wait_time = 0; in dlm_scan_waiters()
1432 if (nodeid_warned(lkb->lkb_wait_nodeid, num_nodes, warned)) in dlm_scan_waiters()
1436 "node %d", lkb->lkb_id, (long long)us, in dlm_scan_waiters()
1437 dlm_config.ci_waitwarn_us, lkb->lkb_wait_nodeid); in dlm_scan_waiters()
1451 static int add_to_waiters(struct dlm_lkb *lkb, int mstype, int to_nodeid) in add_to_waiters() argument
1453 struct dlm_ls *ls = lkb->lkb_resource->res_ls; in add_to_waiters()
1458 if (is_overlap_unlock(lkb) || in add_to_waiters()
1459 (is_overlap_cancel(lkb) && (mstype == DLM_MSG_CANCEL))) { in add_to_waiters()
1464 if (lkb->lkb_wait_type || is_overlap_cancel(lkb)) { in add_to_waiters()
1467 lkb->lkb_flags |= DLM_IFL_OVERLAP_UNLOCK; in add_to_waiters()
1470 lkb->lkb_flags |= DLM_IFL_OVERLAP_CANCEL; in add_to_waiters()
1476 lkb->lkb_wait_count++; in add_to_waiters()
1477 hold_lkb(lkb); in add_to_waiters()
1480 lkb->lkb_id, lkb->lkb_wait_type, mstype, in add_to_waiters()
1481 lkb->lkb_wait_count, lkb->lkb_flags); in add_to_waiters()
1485 DLM_ASSERT(!lkb->lkb_wait_count, in add_to_waiters()
1486 dlm_print_lkb(lkb); in add_to_waiters()
1487 printk("wait_count %d\n", lkb->lkb_wait_count);); in add_to_waiters()
1489 lkb->lkb_wait_count++; in add_to_waiters()
1490 lkb->lkb_wait_type = mstype; in add_to_waiters()
1491 lkb->lkb_wait_time = ktime_get(); in add_to_waiters()
1492 lkb->lkb_wait_nodeid = to_nodeid; /* for debugging */ in add_to_waiters()
1493 hold_lkb(lkb); in add_to_waiters()
1494 list_add(&lkb->lkb_wait_reply, &ls->ls_waiters); in add_to_waiters()
1498 lkb->lkb_id, error, lkb->lkb_flags, mstype, in add_to_waiters()
1499 lkb->lkb_wait_type, lkb->lkb_resource->res_name); in add_to_waiters()
1509 static int _remove_from_waiters(struct dlm_lkb *lkb, int mstype, in _remove_from_waiters() argument
1512 struct dlm_ls *ls = lkb->lkb_resource->res_ls; in _remove_from_waiters()
1515 if (is_overlap_unlock(lkb) && (mstype == DLM_MSG_UNLOCK_REPLY)) { in _remove_from_waiters()
1516 log_debug(ls, "remwait %x unlock_reply overlap", lkb->lkb_id); in _remove_from_waiters()
1517 lkb->lkb_flags &= ~DLM_IFL_OVERLAP_UNLOCK; in _remove_from_waiters()
1522 if (is_overlap_cancel(lkb) && (mstype == DLM_MSG_CANCEL_REPLY)) { in _remove_from_waiters()
1523 log_debug(ls, "remwait %x cancel_reply overlap", lkb->lkb_id); in _remove_from_waiters()
1524 lkb->lkb_flags &= ~DLM_IFL_OVERLAP_CANCEL; in _remove_from_waiters()
1533 (lkb->lkb_wait_type != DLM_MSG_CANCEL)) { in _remove_from_waiters()
1535 lkb->lkb_id, lkb->lkb_wait_type); in _remove_from_waiters()
1548 (lkb->lkb_wait_type == DLM_MSG_CONVERT) && in _remove_from_waiters()
1549 is_overlap_cancel(lkb) && ms && !ms->m_result) { in _remove_from_waiters()
1551 lkb->lkb_id); in _remove_from_waiters()
1552 lkb->lkb_wait_type = 0; in _remove_from_waiters()
1553 lkb->lkb_flags &= ~DLM_IFL_OVERLAP_CANCEL; in _remove_from_waiters()
1554 lkb->lkb_wait_count--; in _remove_from_waiters()
1561 if (lkb->lkb_wait_type) { in _remove_from_waiters()
1562 lkb->lkb_wait_type = 0; in _remove_from_waiters()
1567 lkb->lkb_id, ms ? ms->m_header.h_nodeid : 0, lkb->lkb_remid, in _remove_from_waiters()
1568 mstype, lkb->lkb_flags); in _remove_from_waiters()
1577 if (overlap_done && lkb->lkb_wait_type) { in _remove_from_waiters()
1579 lkb->lkb_id, mstype, lkb->lkb_wait_type); in _remove_from_waiters()
1580 lkb->lkb_wait_count--; in _remove_from_waiters()
1581 lkb->lkb_wait_type = 0; in _remove_from_waiters()
1584 DLM_ASSERT(lkb->lkb_wait_count, dlm_print_lkb(lkb);); in _remove_from_waiters()
1586 lkb->lkb_flags &= ~DLM_IFL_RESEND; in _remove_from_waiters()
1587 lkb->lkb_wait_count--; in _remove_from_waiters()
1588 if (!lkb->lkb_wait_count) in _remove_from_waiters()
1589 list_del_init(&lkb->lkb_wait_reply); in _remove_from_waiters()
1590 unhold_lkb(lkb); in _remove_from_waiters()
1594 static int remove_from_waiters(struct dlm_lkb *lkb, int mstype) in remove_from_waiters() argument
1596 struct dlm_ls *ls = lkb->lkb_resource->res_ls; in remove_from_waiters()
1600 error = _remove_from_waiters(lkb, mstype, NULL); in remove_from_waiters()
1608 static int remove_from_waiters_ms(struct dlm_lkb *lkb, struct dlm_message *ms) in remove_from_waiters_ms() argument
1610 struct dlm_ls *ls = lkb->lkb_resource->res_ls; in remove_from_waiters_ms()
1615 error = _remove_from_waiters(lkb, ms->m_type, ms); in remove_from_waiters_ms()
1813 static void add_timeout(struct dlm_lkb *lkb) in add_timeout() argument
1815 struct dlm_ls *ls = lkb->lkb_resource->res_ls; in add_timeout()
1817 if (is_master_copy(lkb)) in add_timeout()
1821 !(lkb->lkb_exflags & DLM_LKF_NODLCKWT)) { in add_timeout()
1822 lkb->lkb_flags |= DLM_IFL_WATCH_TIMEWARN; in add_timeout()
1825 if (lkb->lkb_exflags & DLM_LKF_TIMEOUT) in add_timeout()
1830 DLM_ASSERT(list_empty(&lkb->lkb_time_list), dlm_print_lkb(lkb);); in add_timeout()
1832 hold_lkb(lkb); in add_timeout()
1833 list_add_tail(&lkb->lkb_time_list, &ls->ls_timeout); in add_timeout()
1837 static void del_timeout(struct dlm_lkb *lkb) in del_timeout() argument
1839 struct dlm_ls *ls = lkb->lkb_resource->res_ls; in del_timeout()
1842 if (!list_empty(&lkb->lkb_time_list)) { in del_timeout()
1843 list_del_init(&lkb->lkb_time_list); in del_timeout()
1844 unhold_lkb(lkb); in del_timeout()
1858 struct dlm_lkb *lkb; in dlm_scan_timeout() local
1869 list_for_each_entry(lkb, &ls->ls_timeout, lkb_time_list) { in dlm_scan_timeout()
1872 lkb->lkb_timestamp)); in dlm_scan_timeout()
1874 if ((lkb->lkb_exflags & DLM_LKF_TIMEOUT) && in dlm_scan_timeout()
1875 wait_us >= (lkb->lkb_timeout_cs * 10000)) in dlm_scan_timeout()
1878 if ((lkb->lkb_flags & DLM_IFL_WATCH_TIMEWARN) && in dlm_scan_timeout()
1884 hold_lkb(lkb); in dlm_scan_timeout()
1892 r = lkb->lkb_resource; in dlm_scan_timeout()
1898 lkb->lkb_flags &= ~DLM_IFL_WATCH_TIMEWARN; in dlm_scan_timeout()
1899 if (!(lkb->lkb_exflags & DLM_LKF_TIMEOUT)) in dlm_scan_timeout()
1900 del_timeout(lkb); in dlm_scan_timeout()
1901 dlm_timeout_warn(lkb); in dlm_scan_timeout()
1906 lkb->lkb_id, lkb->lkb_nodeid, r->res_name); in dlm_scan_timeout()
1907 lkb->lkb_flags &= ~DLM_IFL_WATCH_TIMEWARN; in dlm_scan_timeout()
1908 lkb->lkb_flags |= DLM_IFL_TIMEOUT_CANCEL; in dlm_scan_timeout()
1909 del_timeout(lkb); in dlm_scan_timeout()
1910 _cancel_lock(r, lkb); in dlm_scan_timeout()
1915 dlm_put_lkb(lkb); in dlm_scan_timeout()
1924 struct dlm_lkb *lkb; in dlm_adjust_timeouts() local
1929 list_for_each_entry(lkb, &ls->ls_timeout, lkb_time_list) in dlm_adjust_timeouts()
1930 lkb->lkb_timestamp = ktime_add_us(lkb->lkb_timestamp, adj_us); in dlm_adjust_timeouts()
1937 list_for_each_entry(lkb, &ls->ls_waiters, lkb_wait_reply) { in dlm_adjust_timeouts()
1938 if (ktime_to_us(lkb->lkb_wait_time)) in dlm_adjust_timeouts()
1939 lkb->lkb_wait_time = ktime_get(); in dlm_adjust_timeouts()
1946 static void set_lvb_lock(struct dlm_rsb *r, struct dlm_lkb *lkb) in set_lvb_lock() argument
1954 b = dlm_lvb_operations[lkb->lkb_grmode + 1][lkb->lkb_rqmode + 1]; in set_lvb_lock()
1957 if (!lkb->lkb_lvbptr) in set_lvb_lock()
1960 if (!(lkb->lkb_exflags & DLM_LKF_VALBLK)) in set_lvb_lock()
1966 memcpy(lkb->lkb_lvbptr, r->res_lvbptr, len); in set_lvb_lock()
1967 lkb->lkb_lvbseq = r->res_lvbseq; in set_lvb_lock()
1970 if (lkb->lkb_exflags & DLM_LKF_IVVALBLK) { in set_lvb_lock()
1975 if (!lkb->lkb_lvbptr) in set_lvb_lock()
1978 if (!(lkb->lkb_exflags & DLM_LKF_VALBLK)) in set_lvb_lock()
1987 memcpy(r->res_lvbptr, lkb->lkb_lvbptr, len); in set_lvb_lock()
1989 lkb->lkb_lvbseq = r->res_lvbseq; in set_lvb_lock()
1994 lkb->lkb_sbflags |= DLM_SBF_VALNOTVALID; in set_lvb_lock()
1997 static void set_lvb_unlock(struct dlm_rsb *r, struct dlm_lkb *lkb) in set_lvb_unlock() argument
1999 if (lkb->lkb_grmode < DLM_LOCK_PW) in set_lvb_unlock()
2002 if (lkb->lkb_exflags & DLM_LKF_IVVALBLK) { in set_lvb_unlock()
2007 if (!lkb->lkb_lvbptr) in set_lvb_unlock()
2010 if (!(lkb->lkb_exflags & DLM_LKF_VALBLK)) in set_lvb_unlock()
2019 memcpy(r->res_lvbptr, lkb->lkb_lvbptr, r->res_ls->ls_lvblen); in set_lvb_unlock()
2026 static void set_lvb_lock_pc(struct dlm_rsb *r, struct dlm_lkb *lkb, in set_lvb_lock_pc() argument
2031 if (!lkb->lkb_lvbptr) in set_lvb_lock_pc()
2034 if (!(lkb->lkb_exflags & DLM_LKF_VALBLK)) in set_lvb_lock_pc()
2037 b = dlm_lvb_operations[lkb->lkb_grmode + 1][lkb->lkb_rqmode + 1]; in set_lvb_lock_pc()
2042 memcpy(lkb->lkb_lvbptr, ms->m_extra, len); in set_lvb_lock_pc()
2043 lkb->lkb_lvbseq = ms->m_lvbseq; in set_lvb_lock_pc()
2057 static void _remove_lock(struct dlm_rsb *r, struct dlm_lkb *lkb) in _remove_lock() argument
2059 del_lkb(r, lkb); in _remove_lock()
2060 lkb->lkb_grmode = DLM_LOCK_IV; in _remove_lock()
2063 unhold_lkb(lkb); in _remove_lock()
2066 static void remove_lock(struct dlm_rsb *r, struct dlm_lkb *lkb) in remove_lock() argument
2068 set_lvb_unlock(r, lkb); in remove_lock()
2069 _remove_lock(r, lkb); in remove_lock()
2072 static void remove_lock_pc(struct dlm_rsb *r, struct dlm_lkb *lkb) in remove_lock_pc() argument
2074 _remove_lock(r, lkb); in remove_lock_pc()
2081 static int revert_lock(struct dlm_rsb *r, struct dlm_lkb *lkb) in revert_lock() argument
2085 lkb->lkb_rqmode = DLM_LOCK_IV; in revert_lock()
2087 switch (lkb->lkb_status) { in revert_lock()
2091 move_lkb(r, lkb, DLM_LKSTS_GRANTED); in revert_lock()
2095 del_lkb(r, lkb); in revert_lock()
2096 lkb->lkb_grmode = DLM_LOCK_IV; in revert_lock()
2099 unhold_lkb(lkb); in revert_lock()
2103 log_print("invalid status for revert %d", lkb->lkb_status); in revert_lock()
2108 static int revert_lock_pc(struct dlm_rsb *r, struct dlm_lkb *lkb) in revert_lock_pc() argument
2110 return revert_lock(r, lkb); in revert_lock_pc()
2113 static void _grant_lock(struct dlm_rsb *r, struct dlm_lkb *lkb) in _grant_lock() argument
2115 if (lkb->lkb_grmode != lkb->lkb_rqmode) { in _grant_lock()
2116 lkb->lkb_grmode = lkb->lkb_rqmode; in _grant_lock()
2117 if (lkb->lkb_status) in _grant_lock()
2118 move_lkb(r, lkb, DLM_LKSTS_GRANTED); in _grant_lock()
2120 add_lkb(r, lkb, DLM_LKSTS_GRANTED); in _grant_lock()
2123 lkb->lkb_rqmode = DLM_LOCK_IV; in _grant_lock()
2124 lkb->lkb_highbast = 0; in _grant_lock()
2127 static void grant_lock(struct dlm_rsb *r, struct dlm_lkb *lkb) in grant_lock() argument
2129 set_lvb_lock(r, lkb); in grant_lock()
2130 _grant_lock(r, lkb); in grant_lock()
2133 static void grant_lock_pc(struct dlm_rsb *r, struct dlm_lkb *lkb, in grant_lock_pc() argument
2136 set_lvb_lock_pc(r, lkb, ms); in grant_lock_pc()
2137 _grant_lock(r, lkb); in grant_lock_pc()
2144 static void grant_lock_pending(struct dlm_rsb *r, struct dlm_lkb *lkb) in grant_lock_pending() argument
2146 grant_lock(r, lkb); in grant_lock_pending()
2147 if (is_master_copy(lkb)) in grant_lock_pending()
2148 send_grant(r, lkb); in grant_lock_pending()
2150 queue_cast(r, lkb, 0); in grant_lock_pending()
2161 static void munge_demoted(struct dlm_lkb *lkb) in munge_demoted() argument
2163 if (lkb->lkb_rqmode == DLM_LOCK_IV || lkb->lkb_grmode == DLM_LOCK_IV) { in munge_demoted()
2165 lkb->lkb_id, lkb->lkb_grmode, lkb->lkb_rqmode); in munge_demoted()
2169 lkb->lkb_grmode = DLM_LOCK_NL; in munge_demoted()
2172 static void munge_altmode(struct dlm_lkb *lkb, struct dlm_message *ms) in munge_altmode() argument
2177 lkb->lkb_id, ms->m_type); in munge_altmode()
2181 if (lkb->lkb_exflags & DLM_LKF_ALTPR) in munge_altmode()
2182 lkb->lkb_rqmode = DLM_LOCK_PR; in munge_altmode()
2183 else if (lkb->lkb_exflags & DLM_LKF_ALTCW) in munge_altmode()
2184 lkb->lkb_rqmode = DLM_LOCK_CW; in munge_altmode()
2186 log_print("munge_altmode invalid exflags %x", lkb->lkb_exflags); in munge_altmode()
2187 dlm_print_lkb(lkb); in munge_altmode()
2191 static inline int first_in_list(struct dlm_lkb *lkb, struct list_head *head) in first_in_list() argument
2195 if (lkb->lkb_id == first->lkb_id) in first_in_list()
2203 static int queue_conflict(struct list_head *head, struct dlm_lkb *lkb) in queue_conflict() argument
2208 if (this == lkb) in queue_conflict()
2210 if (!modes_compat(this, lkb)) in queue_conflict()
2296 static int _can_be_granted(struct dlm_rsb *r, struct dlm_lkb *lkb, int now, in _can_be_granted() argument
2299 int8_t conv = (lkb->lkb_grmode != DLM_LOCK_IV); in _can_be_granted()
2320 if (lkb->lkb_exflags & DLM_LKF_EXPEDITE) in _can_be_granted()
2328 if (queue_conflict(&r->res_grantqueue, lkb)) in _can_be_granted()
2337 if (queue_conflict(&r->res_convertqueue, lkb)) in _can_be_granted()
2380 if (now && conv && !(lkb->lkb_exflags & DLM_LKF_QUECVT)) in _can_be_granted()
2388 if (now && conv && (lkb->lkb_exflags & DLM_LKF_QUECVT)) { in _can_be_granted()
2400 if (lkb->lkb_exflags & DLM_LKF_NOORDER) in _can_be_granted()
2409 if (!now && conv && first_in_list(lkb, &r->res_convertqueue)) in _can_be_granted()
2436 first_in_list(lkb, &r->res_waitqueue)) in _can_be_granted()
2442 static int can_be_granted(struct dlm_rsb *r, struct dlm_lkb *lkb, int now, in can_be_granted() argument
2446 int8_t alt = 0, rqmode = lkb->lkb_rqmode; in can_be_granted()
2447 int8_t is_convert = (lkb->lkb_grmode != DLM_LOCK_IV); in can_be_granted()
2452 rv = _can_be_granted(r, lkb, now, recover); in can_be_granted()
2462 if (is_convert && can_be_queued(lkb) && in can_be_granted()
2463 conversion_deadlock_detect(r, lkb)) { in can_be_granted()
2464 if (lkb->lkb_exflags & DLM_LKF_CONVDEADLK) { in can_be_granted()
2465 lkb->lkb_grmode = DLM_LOCK_NL; in can_be_granted()
2466 lkb->lkb_sbflags |= DLM_SBF_DEMOTED; in can_be_granted()
2471 lkb->lkb_id, now); in can_be_granted()
2484 if (rqmode != DLM_LOCK_PR && (lkb->lkb_exflags & DLM_LKF_ALTPR)) in can_be_granted()
2486 else if (rqmode != DLM_LOCK_CW && (lkb->lkb_exflags & DLM_LKF_ALTCW)) in can_be_granted()
2490 lkb->lkb_rqmode = alt; in can_be_granted()
2491 rv = _can_be_granted(r, lkb, now, 0); in can_be_granted()
2493 lkb->lkb_sbflags |= DLM_SBF_ALTMODE; in can_be_granted()
2495 lkb->lkb_rqmode = rqmode; in can_be_granted()
2507 struct dlm_lkb *lkb, *s; in grant_pending_convert() local
2518 list_for_each_entry_safe(lkb, s, &r->res_convertqueue, lkb_statequeue) { in grant_pending_convert()
2519 demoted = is_demoted(lkb); in grant_pending_convert()
2522 if (can_be_granted(r, lkb, 0, recover, &deadlk)) { in grant_pending_convert()
2523 grant_lock_pending(r, lkb); in grant_pending_convert()
2530 if (!demoted && is_demoted(lkb)) { in grant_pending_convert()
2532 lkb->lkb_id, lkb->lkb_nodeid, r->res_name); in grant_pending_convert()
2543 if (lkb->lkb_exflags & DLM_LKF_NODLCKWT) { in grant_pending_convert()
2544 if (lkb->lkb_highbast < lkb->lkb_rqmode) { in grant_pending_convert()
2545 queue_bast(r, lkb, lkb->lkb_rqmode); in grant_pending_convert()
2546 lkb->lkb_highbast = lkb->lkb_rqmode; in grant_pending_convert()
2550 lkb->lkb_id, lkb->lkb_nodeid, in grant_pending_convert()
2557 hi = max_t(int, lkb->lkb_rqmode, hi); in grant_pending_convert()
2559 if (cw && lkb->lkb_rqmode == DLM_LOCK_CW) in grant_pending_convert()
2576 struct dlm_lkb *lkb, *s; in grant_pending_wait() local
2578 list_for_each_entry_safe(lkb, s, &r->res_waitqueue, lkb_statequeue) { in grant_pending_wait()
2579 if (can_be_granted(r, lkb, 0, 0, NULL)) { in grant_pending_wait()
2580 grant_lock_pending(r, lkb); in grant_pending_wait()
2584 high = max_t(int, lkb->lkb_rqmode, high); in grant_pending_wait()
2585 if (lkb->lkb_rqmode == DLM_LOCK_CW) in grant_pending_wait()
2614 struct dlm_lkb *lkb, *s; in grant_pending_locks() local
2636 list_for_each_entry_safe(lkb, s, &r->res_grantqueue, lkb_statequeue) { in grant_pending_locks()
2637 if (lkb->lkb_bastfn && lock_requires_bast(lkb, high, cw)) { in grant_pending_locks()
2639 lkb->lkb_grmode == DLM_LOCK_PR) in grant_pending_locks()
2640 queue_bast(r, lkb, DLM_LOCK_CW); in grant_pending_locks()
2642 queue_bast(r, lkb, high); in grant_pending_locks()
2643 lkb->lkb_highbast = high; in grant_pending_locks()
2663 struct dlm_lkb *lkb) in send_bast_queue() argument
2669 if (gr == lkb) in send_bast_queue()
2671 if (gr->lkb_bastfn && modes_require_bast(gr, lkb)) { in send_bast_queue()
2672 queue_bast(r, gr, lkb->lkb_rqmode); in send_bast_queue()
2673 gr->lkb_highbast = lkb->lkb_rqmode; in send_bast_queue()
2678 static void send_blocking_asts(struct dlm_rsb *r, struct dlm_lkb *lkb) in send_blocking_asts() argument
2680 send_bast_queue(r, &r->res_grantqueue, lkb); in send_blocking_asts()
2683 static void send_blocking_asts_all(struct dlm_rsb *r, struct dlm_lkb *lkb) in send_blocking_asts_all() argument
2685 send_bast_queue(r, &r->res_grantqueue, lkb); in send_blocking_asts_all()
2686 send_bast_queue(r, &r->res_convertqueue, lkb); in send_blocking_asts_all()
2708 static int set_master(struct dlm_rsb *r, struct dlm_lkb *lkb) in set_master() argument
2714 r->res_first_lkid = lkb->lkb_id; in set_master()
2715 lkb->lkb_nodeid = r->res_nodeid; in set_master()
2719 if (r->res_first_lkid && r->res_first_lkid != lkb->lkb_id) { in set_master()
2720 list_add_tail(&lkb->lkb_rsb_lookup, &r->res_lookup); in set_master()
2725 lkb->lkb_nodeid = 0; in set_master()
2730 lkb->lkb_nodeid = r->res_master_nodeid; in set_master()
2742 lkb->lkb_id, r->res_master_nodeid, r->res_dir_nodeid, in set_master()
2746 lkb->lkb_nodeid = 0; in set_master()
2752 r->res_first_lkid = lkb->lkb_id; in set_master()
2753 send_lookup(r, lkb); in set_master()
2759 struct dlm_lkb *lkb, *safe; in process_lookup_list() local
2761 list_for_each_entry_safe(lkb, safe, &r->res_lookup, lkb_rsb_lookup) { in process_lookup_list()
2762 list_del_init(&lkb->lkb_rsb_lookup); in process_lookup_list()
2763 _request_lock(r, lkb); in process_lookup_list()
2772 struct dlm_lkb *lkb; in confirm_master() local
2794 lkb = list_entry(r->res_lookup.next, struct dlm_lkb, in confirm_master()
2796 list_del_init(&lkb->lkb_rsb_lookup); in confirm_master()
2797 r->res_first_lkid = lkb->lkb_id; in confirm_master()
2798 _request_lock(r, lkb); in confirm_master()
2887 static int validate_lock_args(struct dlm_ls *ls, struct dlm_lkb *lkb, in validate_lock_args() argument
2893 if (lkb->lkb_flags & DLM_IFL_MSTCPY) in validate_lock_args()
2897 !__quecvt_compat_matrix[lkb->lkb_grmode+1][args->mode+1]) in validate_lock_args()
2901 if (lkb->lkb_status != DLM_LKSTS_GRANTED) in validate_lock_args()
2904 if (lkb->lkb_wait_type) in validate_lock_args()
2907 if (is_overlap(lkb)) in validate_lock_args()
2911 lkb->lkb_exflags = args->flags; in validate_lock_args()
2912 lkb->lkb_sbflags = 0; in validate_lock_args()
2913 lkb->lkb_astfn = args->astfn; in validate_lock_args()
2914 lkb->lkb_astparam = args->astparam; in validate_lock_args()
2915 lkb->lkb_bastfn = args->bastfn; in validate_lock_args()
2916 lkb->lkb_rqmode = args->mode; in validate_lock_args()
2917 lkb->lkb_lksb = args->lksb; in validate_lock_args()
2918 lkb->lkb_lvbptr = args->lksb->sb_lvbptr; in validate_lock_args()
2919 lkb->lkb_ownpid = (int) current->pid; in validate_lock_args()
2920 lkb->lkb_timeout_cs = args->timeout; in validate_lock_args()
2925 rv, lkb->lkb_id, lkb->lkb_flags, args->flags, in validate_lock_args()
2926 lkb->lkb_status, lkb->lkb_wait_type, in validate_lock_args()
2927 lkb->lkb_resource->res_name); in validate_lock_args()
2938 static int validate_unlock_args(struct dlm_lkb *lkb, struct dlm_args *args) in validate_unlock_args() argument
2940 struct dlm_ls *ls = lkb->lkb_resource->res_ls; in validate_unlock_args()
2943 if (lkb->lkb_flags & DLM_IFL_MSTCPY) { in validate_unlock_args()
2944 log_error(ls, "unlock on MSTCPY %x", lkb->lkb_id); in validate_unlock_args()
2945 dlm_print_lkb(lkb); in validate_unlock_args()
2953 if (lkb->lkb_flags & DLM_IFL_ENDOFLIFE) { in validate_unlock_args()
2954 log_debug(ls, "unlock on ENDOFLIFE %x", lkb->lkb_id); in validate_unlock_args()
2962 if (!list_empty(&lkb->lkb_rsb_lookup)) { in validate_unlock_args()
2964 log_debug(ls, "unlock on rsb_lookup %x", lkb->lkb_id); in validate_unlock_args()
2965 list_del_init(&lkb->lkb_rsb_lookup); in validate_unlock_args()
2966 queue_cast(lkb->lkb_resource, lkb, in validate_unlock_args()
2969 unhold_lkb(lkb); /* undoes create_lkb() */ in validate_unlock_args()
2979 if (lkb->lkb_exflags & DLM_LKF_CANCEL) in validate_unlock_args()
2982 if (is_overlap(lkb)) in validate_unlock_args()
2986 del_timeout(lkb); in validate_unlock_args()
2988 if (lkb->lkb_flags & DLM_IFL_RESEND) { in validate_unlock_args()
2989 lkb->lkb_flags |= DLM_IFL_OVERLAP_CANCEL; in validate_unlock_args()
2995 if (lkb->lkb_status == DLM_LKSTS_GRANTED && in validate_unlock_args()
2996 !lkb->lkb_wait_type) { in validate_unlock_args()
3001 switch (lkb->lkb_wait_type) { in validate_unlock_args()
3004 lkb->lkb_flags |= DLM_IFL_OVERLAP_CANCEL; in validate_unlock_args()
3020 if (lkb->lkb_exflags & DLM_LKF_FORCEUNLOCK) in validate_unlock_args()
3023 if (is_overlap_unlock(lkb)) in validate_unlock_args()
3027 del_timeout(lkb); in validate_unlock_args()
3029 if (lkb->lkb_flags & DLM_IFL_RESEND) { in validate_unlock_args()
3030 lkb->lkb_flags |= DLM_IFL_OVERLAP_UNLOCK; in validate_unlock_args()
3035 switch (lkb->lkb_wait_type) { in validate_unlock_args()
3038 lkb->lkb_flags |= DLM_IFL_OVERLAP_UNLOCK; in validate_unlock_args()
3050 if (lkb->lkb_wait_type || lkb->lkb_wait_count) in validate_unlock_args()
3055 lkb->lkb_exflags |= args->flags; in validate_unlock_args()
3056 lkb->lkb_sbflags = 0; in validate_unlock_args()
3057 lkb->lkb_astparam = args->astparam; in validate_unlock_args()
3062 lkb->lkb_id, lkb->lkb_flags, lkb->lkb_exflags, in validate_unlock_args()
3063 args->flags, lkb->lkb_wait_type, in validate_unlock_args()
3064 lkb->lkb_resource->res_name); in validate_unlock_args()
3075 static int do_request(struct dlm_rsb *r, struct dlm_lkb *lkb) in do_request() argument
3079 if (can_be_granted(r, lkb, 1, 0, NULL)) { in do_request()
3080 grant_lock(r, lkb); in do_request()
3081 queue_cast(r, lkb, 0); in do_request()
3085 if (can_be_queued(lkb)) { in do_request()
3087 add_lkb(r, lkb, DLM_LKSTS_WAITING); in do_request()
3088 add_timeout(lkb); in do_request()
3093 queue_cast(r, lkb, -EAGAIN); in do_request()
3098 static void do_request_effects(struct dlm_rsb *r, struct dlm_lkb *lkb, in do_request_effects() argument
3103 if (force_blocking_asts(lkb)) in do_request_effects()
3104 send_blocking_asts_all(r, lkb); in do_request_effects()
3107 send_blocking_asts(r, lkb); in do_request_effects()
3112 static int do_convert(struct dlm_rsb *r, struct dlm_lkb *lkb) in do_convert() argument
3119 if (can_be_granted(r, lkb, 1, 0, &deadlk)) { in do_convert()
3120 grant_lock(r, lkb); in do_convert()
3121 queue_cast(r, lkb, 0); in do_convert()
3129 if (deadlk && !(lkb->lkb_exflags & DLM_LKF_NODLCKWT)) { in do_convert()
3131 revert_lock(r, lkb); in do_convert()
3132 queue_cast(r, lkb, -EDEADLK); in do_convert()
3143 if (is_demoted(lkb)) { in do_convert()
3145 if (_can_be_granted(r, lkb, 1, 0)) { in do_convert()
3146 grant_lock(r, lkb); in do_convert()
3147 queue_cast(r, lkb, 0); in do_convert()
3153 if (can_be_queued(lkb)) { in do_convert()
3155 del_lkb(r, lkb); in do_convert()
3156 add_lkb(r, lkb, DLM_LKSTS_CONVERT); in do_convert()
3157 add_timeout(lkb); in do_convert()
3162 queue_cast(r, lkb, -EAGAIN); in do_convert()
3167 static void do_convert_effects(struct dlm_rsb *r, struct dlm_lkb *lkb, in do_convert_effects() argument
3176 if (force_blocking_asts(lkb)) in do_convert_effects()
3177 send_blocking_asts_all(r, lkb); in do_convert_effects()
3180 send_blocking_asts(r, lkb); in do_convert_effects()
3185 static int do_unlock(struct dlm_rsb *r, struct dlm_lkb *lkb) in do_unlock() argument
3187 remove_lock(r, lkb); in do_unlock()
3188 queue_cast(r, lkb, -DLM_EUNLOCK); in do_unlock()
3192 static void do_unlock_effects(struct dlm_rsb *r, struct dlm_lkb *lkb, in do_unlock_effects() argument
3200 static int do_cancel(struct dlm_rsb *r, struct dlm_lkb *lkb) in do_cancel() argument
3204 error = revert_lock(r, lkb); in do_cancel()
3206 queue_cast(r, lkb, -DLM_ECANCEL); in do_cancel()
3212 static void do_cancel_effects(struct dlm_rsb *r, struct dlm_lkb *lkb, in do_cancel_effects() argument
3226 static int _request_lock(struct dlm_rsb *r, struct dlm_lkb *lkb) in _request_lock() argument
3232 error = set_master(r, lkb); in _request_lock()
3242 error = send_request(r, lkb); in _request_lock()
3244 error = do_request(r, lkb); in _request_lock()
3247 do_request_effects(r, lkb, error); in _request_lock()
3255 static int _convert_lock(struct dlm_rsb *r, struct dlm_lkb *lkb) in _convert_lock() argument
3261 error = send_convert(r, lkb); in _convert_lock()
3263 error = do_convert(r, lkb); in _convert_lock()
3266 do_convert_effects(r, lkb, error); in _convert_lock()
3274 static int _unlock_lock(struct dlm_rsb *r, struct dlm_lkb *lkb) in _unlock_lock() argument
3280 error = send_unlock(r, lkb); in _unlock_lock()
3282 error = do_unlock(r, lkb); in _unlock_lock()
3285 do_unlock_effects(r, lkb, error); in _unlock_lock()
3293 static int _cancel_lock(struct dlm_rsb *r, struct dlm_lkb *lkb) in _cancel_lock() argument
3299 error = send_cancel(r, lkb); in _cancel_lock()
3301 error = do_cancel(r, lkb); in _cancel_lock()
3304 do_cancel_effects(r, lkb, error); in _cancel_lock()
3315 static int request_lock(struct dlm_ls *ls, struct dlm_lkb *lkb, char *name, in request_lock() argument
3321 error = validate_lock_args(ls, lkb, args); in request_lock()
3331 attach_lkb(r, lkb); in request_lock()
3332 lkb->lkb_lksb->sb_lkid = lkb->lkb_id; in request_lock()
3334 error = _request_lock(r, lkb); in request_lock()
3341 static int convert_lock(struct dlm_ls *ls, struct dlm_lkb *lkb, in convert_lock() argument
3347 r = lkb->lkb_resource; in convert_lock()
3352 error = validate_lock_args(ls, lkb, args); in convert_lock()
3356 error = _convert_lock(r, lkb); in convert_lock()
3363 static int unlock_lock(struct dlm_ls *ls, struct dlm_lkb *lkb, in unlock_lock() argument
3369 r = lkb->lkb_resource; in unlock_lock()
3374 error = validate_unlock_args(lkb, args); in unlock_lock()
3378 error = _unlock_lock(r, lkb); in unlock_lock()
3385 static int cancel_lock(struct dlm_ls *ls, struct dlm_lkb *lkb, in cancel_lock() argument
3391 r = lkb->lkb_resource; in cancel_lock()
3396 error = validate_unlock_args(lkb, args); in cancel_lock()
3400 error = _cancel_lock(r, lkb); in cancel_lock()
3423 struct dlm_lkb *lkb; in dlm_lock() local
3434 error = find_lkb(ls, lksb->sb_lkid, &lkb); in dlm_lock()
3436 error = create_lkb(ls, &lkb); in dlm_lock()
3447 error = convert_lock(ls, lkb, &args); in dlm_lock()
3449 error = request_lock(ls, lkb, name, namelen, &args); in dlm_lock()
3455 __put_lkb(ls, lkb); in dlm_lock()
3471 struct dlm_lkb *lkb; in dlm_unlock() local
3481 error = find_lkb(ls, lkid, &lkb); in dlm_unlock()
3490 error = cancel_lock(ls, lkb, &args); in dlm_unlock()
3492 error = unlock_lock(ls, lkb, &args); in dlm_unlock()
3499 dlm_put_lkb(lkb); in dlm_unlock()
3562 static int create_message(struct dlm_rsb *r, struct dlm_lkb *lkb, in create_message() argument
3580 if (lkb && lkb->lkb_lvbptr) in create_message()
3599 static void send_args(struct dlm_rsb *r, struct dlm_lkb *lkb, in send_args() argument
3602 ms->m_nodeid = lkb->lkb_nodeid; in send_args()
3603 ms->m_pid = lkb->lkb_ownpid; in send_args()
3604 ms->m_lkid = lkb->lkb_id; in send_args()
3605 ms->m_remid = lkb->lkb_remid; in send_args()
3606 ms->m_exflags = lkb->lkb_exflags; in send_args()
3607 ms->m_sbflags = lkb->lkb_sbflags; in send_args()
3608 ms->m_flags = lkb->lkb_flags; in send_args()
3609 ms->m_lvbseq = lkb->lkb_lvbseq; in send_args()
3610 ms->m_status = lkb->lkb_status; in send_args()
3611 ms->m_grmode = lkb->lkb_grmode; in send_args()
3612 ms->m_rqmode = lkb->lkb_rqmode; in send_args()
3618 if (lkb->lkb_bastfn) in send_args()
3620 if (lkb->lkb_astfn) in send_args()
3636 if (!lkb->lkb_lvbptr) in send_args()
3638 memcpy(ms->m_extra, lkb->lkb_lvbptr, r->res_ls->ls_lvblen); in send_args()
3643 static int send_common(struct dlm_rsb *r, struct dlm_lkb *lkb, int mstype) in send_common() argument
3651 error = add_to_waiters(lkb, mstype, to_nodeid); in send_common()
3655 error = create_message(r, lkb, to_nodeid, mstype, &ms, &mh); in send_common()
3659 send_args(r, lkb, ms); in send_common()
3667 remove_from_waiters(lkb, msg_reply_type(mstype)); in send_common()
3671 static int send_request(struct dlm_rsb *r, struct dlm_lkb *lkb) in send_request() argument
3673 return send_common(r, lkb, DLM_MSG_REQUEST); in send_request()
3676 static int send_convert(struct dlm_rsb *r, struct dlm_lkb *lkb) in send_convert() argument
3680 error = send_common(r, lkb, DLM_MSG_CONVERT); in send_convert()
3683 if (!error && down_conversion(lkb)) { in send_convert()
3684 remove_from_waiters(lkb, DLM_MSG_CONVERT_REPLY); in send_convert()
3688 __receive_convert_reply(r, lkb, &r->res_ls->ls_stub_ms); in send_convert()
3698 static int send_unlock(struct dlm_rsb *r, struct dlm_lkb *lkb) in send_unlock() argument
3700 return send_common(r, lkb, DLM_MSG_UNLOCK); in send_unlock()
3703 static int send_cancel(struct dlm_rsb *r, struct dlm_lkb *lkb) in send_cancel() argument
3705 return send_common(r, lkb, DLM_MSG_CANCEL); in send_cancel()
3708 static int send_grant(struct dlm_rsb *r, struct dlm_lkb *lkb) in send_grant() argument
3714 to_nodeid = lkb->lkb_nodeid; in send_grant()
3716 error = create_message(r, lkb, to_nodeid, DLM_MSG_GRANT, &ms, &mh); in send_grant()
3720 send_args(r, lkb, ms); in send_grant()
3729 static int send_bast(struct dlm_rsb *r, struct dlm_lkb *lkb, int mode) in send_bast() argument
3735 to_nodeid = lkb->lkb_nodeid; in send_bast()
3741 send_args(r, lkb, ms); in send_bast()
3750 static int send_lookup(struct dlm_rsb *r, struct dlm_lkb *lkb) in send_lookup() argument
3758 error = add_to_waiters(lkb, DLM_MSG_LOOKUP, to_nodeid); in send_lookup()
3766 send_args(r, lkb, ms); in send_lookup()
3774 remove_from_waiters(lkb, DLM_MSG_LOOKUP_REPLY); in send_lookup()
3798 static int send_common_reply(struct dlm_rsb *r, struct dlm_lkb *lkb, in send_common_reply() argument
3805 to_nodeid = lkb->lkb_nodeid; in send_common_reply()
3807 error = create_message(r, lkb, to_nodeid, mstype, &ms, &mh); in send_common_reply()
3811 send_args(r, lkb, ms); in send_common_reply()
3820 static int send_request_reply(struct dlm_rsb *r, struct dlm_lkb *lkb, int rv) in send_request_reply() argument
3822 return send_common_reply(r, lkb, DLM_MSG_REQUEST_REPLY, rv); in send_request_reply()
3825 static int send_convert_reply(struct dlm_rsb *r, struct dlm_lkb *lkb, int rv) in send_convert_reply() argument
3827 return send_common_reply(r, lkb, DLM_MSG_CONVERT_REPLY, rv); in send_convert_reply()
3830 static int send_unlock_reply(struct dlm_rsb *r, struct dlm_lkb *lkb, int rv) in send_unlock_reply() argument
3832 return send_common_reply(r, lkb, DLM_MSG_UNLOCK_REPLY, rv); in send_unlock_reply()
3835 static int send_cancel_reply(struct dlm_rsb *r, struct dlm_lkb *lkb, int rv) in send_cancel_reply() argument
3837 return send_common_reply(r, lkb, DLM_MSG_CANCEL_REPLY, rv); in send_cancel_reply()
3865 static void receive_flags(struct dlm_lkb *lkb, struct dlm_message *ms) in receive_flags() argument
3867 lkb->lkb_exflags = ms->m_exflags; in receive_flags()
3868 lkb->lkb_sbflags = ms->m_sbflags; in receive_flags()
3869 lkb->lkb_flags = (lkb->lkb_flags & 0xFFFF0000) | in receive_flags()
3873 static void receive_flags_reply(struct dlm_lkb *lkb, struct dlm_message *ms) in receive_flags_reply() argument
3878 lkb->lkb_sbflags = ms->m_sbflags; in receive_flags_reply()
3879 lkb->lkb_flags = (lkb->lkb_flags & 0xFFFF0000) | in receive_flags_reply()
3888 static int receive_lvb(struct dlm_ls *ls, struct dlm_lkb *lkb, in receive_lvb() argument
3893 if (lkb->lkb_exflags & DLM_LKF_VALBLK) { in receive_lvb()
3894 if (!lkb->lkb_lvbptr) in receive_lvb()
3895 lkb->lkb_lvbptr = dlm_allocate_lvb(ls); in receive_lvb()
3896 if (!lkb->lkb_lvbptr) in receive_lvb()
3901 memcpy(lkb->lkb_lvbptr, ms->m_extra, len); in receive_lvb()
3916 static int receive_request_args(struct dlm_ls *ls, struct dlm_lkb *lkb, in receive_request_args() argument
3919 lkb->lkb_nodeid = ms->m_header.h_nodeid; in receive_request_args()
3920 lkb->lkb_ownpid = ms->m_pid; in receive_request_args()
3921 lkb->lkb_remid = ms->m_lkid; in receive_request_args()
3922 lkb->lkb_grmode = DLM_LOCK_IV; in receive_request_args()
3923 lkb->lkb_rqmode = ms->m_rqmode; in receive_request_args()
3925 lkb->lkb_bastfn = (ms->m_asts & DLM_CB_BAST) ? &fake_bastfn : NULL; in receive_request_args()
3926 lkb->lkb_astfn = (ms->m_asts & DLM_CB_CAST) ? &fake_astfn : NULL; in receive_request_args()
3928 if (lkb->lkb_exflags & DLM_LKF_VALBLK) { in receive_request_args()
3930 lkb->lkb_lvbptr = dlm_allocate_lvb(ls); in receive_request_args()
3931 if (!lkb->lkb_lvbptr) in receive_request_args()
3938 static int receive_convert_args(struct dlm_ls *ls, struct dlm_lkb *lkb, in receive_convert_args() argument
3941 if (lkb->lkb_status != DLM_LKSTS_GRANTED) in receive_convert_args()
3944 if (receive_lvb(ls, lkb, ms)) in receive_convert_args()
3947 lkb->lkb_rqmode = ms->m_rqmode; in receive_convert_args()
3948 lkb->lkb_lvbseq = ms->m_lvbseq; in receive_convert_args()
3953 static int receive_unlock_args(struct dlm_ls *ls, struct dlm_lkb *lkb, in receive_unlock_args() argument
3956 if (receive_lvb(ls, lkb, ms)) in receive_unlock_args()
3966 struct dlm_lkb *lkb = &ls->ls_stub_lkb; in setup_stub_lkb() local
3967 lkb->lkb_nodeid = ms->m_header.h_nodeid; in setup_stub_lkb()
3968 lkb->lkb_remid = ms->m_lkid; in setup_stub_lkb()
3974 static int validate_message(struct dlm_lkb *lkb, struct dlm_message *ms) in validate_message() argument
3983 if (!is_master_copy(lkb) || lkb->lkb_nodeid != from) in validate_message()
3992 if (!is_process_copy(lkb) || lkb->lkb_nodeid != from) in validate_message()
3997 if (!is_process_copy(lkb)) in validate_message()
3999 else if (lkb->lkb_nodeid != -1 && lkb->lkb_nodeid != from) in validate_message()
4008 log_error(lkb->lkb_resource->res_ls, in validate_message()
4010 ms->m_type, from, lkb->lkb_id, lkb->lkb_remid, in validate_message()
4011 lkb->lkb_flags, lkb->lkb_nodeid); in validate_message()
4075 struct dlm_lkb *lkb; in receive_request() local
4082 error = create_lkb(ls, &lkb); in receive_request()
4086 receive_flags(lkb, ms); in receive_request()
4087 lkb->lkb_flags |= DLM_IFL_MSTCPY; in receive_request()
4088 error = receive_request_args(ls, lkb, ms); in receive_request()
4090 __put_lkb(ls, lkb); in receive_request()
4105 __put_lkb(ls, lkb); in receive_request()
4116 __put_lkb(ls, lkb); in receive_request()
4121 attach_lkb(r, lkb); in receive_request()
4122 error = do_request(r, lkb); in receive_request()
4123 send_request_reply(r, lkb, error); in receive_request()
4124 do_request_effects(r, lkb, error); in receive_request()
4132 dlm_put_lkb(lkb); in receive_request()
4168 struct dlm_lkb *lkb; in receive_convert() local
4172 error = find_lkb(ls, ms->m_remid, &lkb); in receive_convert()
4176 if (lkb->lkb_remid != ms->m_lkid) { in receive_convert()
4178 "remote %d %x", lkb->lkb_id, lkb->lkb_remid, in receive_convert()
4179 (unsigned long long)lkb->lkb_recover_seq, in receive_convert()
4185 r = lkb->lkb_resource; in receive_convert()
4190 error = validate_message(lkb, ms); in receive_convert()
4194 receive_flags(lkb, ms); in receive_convert()
4196 error = receive_convert_args(ls, lkb, ms); in receive_convert()
4198 send_convert_reply(r, lkb, error); in receive_convert()
4202 reply = !down_conversion(lkb); in receive_convert()
4204 error = do_convert(r, lkb); in receive_convert()
4206 send_convert_reply(r, lkb, error); in receive_convert()
4207 do_convert_effects(r, lkb, error); in receive_convert()
4211 dlm_put_lkb(lkb); in receive_convert()
4222 struct dlm_lkb *lkb; in receive_unlock() local
4226 error = find_lkb(ls, ms->m_remid, &lkb); in receive_unlock()
4230 if (lkb->lkb_remid != ms->m_lkid) { in receive_unlock()
4232 lkb->lkb_id, lkb->lkb_remid, in receive_unlock()
4238 r = lkb->lkb_resource; in receive_unlock()
4243 error = validate_message(lkb, ms); in receive_unlock()
4247 receive_flags(lkb, ms); in receive_unlock()
4249 error = receive_unlock_args(ls, lkb, ms); in receive_unlock()
4251 send_unlock_reply(r, lkb, error); in receive_unlock()
4255 error = do_unlock(r, lkb); in receive_unlock()
4256 send_unlock_reply(r, lkb, error); in receive_unlock()
4257 do_unlock_effects(r, lkb, error); in receive_unlock()
4261 dlm_put_lkb(lkb); in receive_unlock()
4272 struct dlm_lkb *lkb; in receive_cancel() local
4276 error = find_lkb(ls, ms->m_remid, &lkb); in receive_cancel()
4280 receive_flags(lkb, ms); in receive_cancel()
4282 r = lkb->lkb_resource; in receive_cancel()
4287 error = validate_message(lkb, ms); in receive_cancel()
4291 error = do_cancel(r, lkb); in receive_cancel()
4292 send_cancel_reply(r, lkb, error); in receive_cancel()
4293 do_cancel_effects(r, lkb, error); in receive_cancel()
4297 dlm_put_lkb(lkb); in receive_cancel()
4308 struct dlm_lkb *lkb; in receive_grant() local
4312 error = find_lkb(ls, ms->m_remid, &lkb); in receive_grant()
4316 r = lkb->lkb_resource; in receive_grant()
4321 error = validate_message(lkb, ms); in receive_grant()
4325 receive_flags_reply(lkb, ms); in receive_grant()
4326 if (is_altmode(lkb)) in receive_grant()
4327 munge_altmode(lkb, ms); in receive_grant()
4328 grant_lock_pc(r, lkb, ms); in receive_grant()
4329 queue_cast(r, lkb, 0); in receive_grant()
4333 dlm_put_lkb(lkb); in receive_grant()
4339 struct dlm_lkb *lkb; in receive_bast() local
4343 error = find_lkb(ls, ms->m_remid, &lkb); in receive_bast()
4347 r = lkb->lkb_resource; in receive_bast()
4352 error = validate_message(lkb, ms); in receive_bast()
4356 queue_bast(r, lkb, ms->m_bastmode); in receive_bast()
4357 lkb->lkb_highbast = ms->m_bastmode; in receive_bast()
4361 dlm_put_lkb(lkb); in receive_bast()
4480 struct dlm_lkb *lkb; in receive_request_reply() local
4485 error = find_lkb(ls, ms->m_remid, &lkb); in receive_request_reply()
4489 r = lkb->lkb_resource; in receive_request_reply()
4493 error = validate_message(lkb, ms); in receive_request_reply()
4497 mstype = lkb->lkb_wait_type; in receive_request_reply()
4498 error = remove_from_waiters(lkb, DLM_MSG_REQUEST_REPLY); in receive_request_reply()
4501 lkb->lkb_id, from_nodeid, ms->m_lkid, ms->m_result); in receive_request_reply()
4511 lkb->lkb_nodeid = from_nodeid; in receive_request_reply()
4520 queue_cast(r, lkb, -EAGAIN); in receive_request_reply()
4522 unhold_lkb(lkb); /* undoes create_lkb() */ in receive_request_reply()
4528 receive_flags_reply(lkb, ms); in receive_request_reply()
4529 lkb->lkb_remid = ms->m_lkid; in receive_request_reply()
4530 if (is_altmode(lkb)) in receive_request_reply()
4531 munge_altmode(lkb, ms); in receive_request_reply()
4533 add_lkb(r, lkb, DLM_LKSTS_WAITING); in receive_request_reply()
4534 add_timeout(lkb); in receive_request_reply()
4536 grant_lock_pc(r, lkb, ms); in receive_request_reply()
4537 queue_cast(r, lkb, 0); in receive_request_reply()
4546 "master %d dir %d first %x %s", lkb->lkb_id, in receive_request_reply()
4555 lkb->lkb_nodeid = -1; in receive_request_reply()
4558 if (is_overlap(lkb)) { in receive_request_reply()
4560 queue_cast_overlap(r, lkb); in receive_request_reply()
4562 unhold_lkb(lkb); /* undoes create_lkb() */ in receive_request_reply()
4564 _request_lock(r, lkb); in receive_request_reply()
4573 lkb->lkb_id, result); in receive_request_reply()
4576 if (is_overlap_unlock(lkb) && (result == 0 || result == -EINPROGRESS)) { in receive_request_reply()
4578 lkb->lkb_id, result); in receive_request_reply()
4579 lkb->lkb_flags &= ~DLM_IFL_OVERLAP_UNLOCK; in receive_request_reply()
4580 lkb->lkb_flags &= ~DLM_IFL_OVERLAP_CANCEL; in receive_request_reply()
4581 send_unlock(r, lkb); in receive_request_reply()
4582 } else if (is_overlap_cancel(lkb) && (result == -EINPROGRESS)) { in receive_request_reply()
4583 log_debug(ls, "receive_request_reply %x cancel", lkb->lkb_id); in receive_request_reply()
4584 lkb->lkb_flags &= ~DLM_IFL_OVERLAP_UNLOCK; in receive_request_reply()
4585 lkb->lkb_flags &= ~DLM_IFL_OVERLAP_CANCEL; in receive_request_reply()
4586 send_cancel(r, lkb); in receive_request_reply()
4588 lkb->lkb_flags &= ~DLM_IFL_OVERLAP_CANCEL; in receive_request_reply()
4589 lkb->lkb_flags &= ~DLM_IFL_OVERLAP_UNLOCK; in receive_request_reply()
4594 dlm_put_lkb(lkb); in receive_request_reply()
4598 static void __receive_convert_reply(struct dlm_rsb *r, struct dlm_lkb *lkb, in __receive_convert_reply() argument
4605 queue_cast(r, lkb, -EAGAIN); in __receive_convert_reply()
4609 receive_flags_reply(lkb, ms); in __receive_convert_reply()
4610 revert_lock_pc(r, lkb); in __receive_convert_reply()
4611 queue_cast(r, lkb, -EDEADLK); in __receive_convert_reply()
4616 receive_flags_reply(lkb, ms); in __receive_convert_reply()
4617 if (is_demoted(lkb)) in __receive_convert_reply()
4618 munge_demoted(lkb); in __receive_convert_reply()
4619 del_lkb(r, lkb); in __receive_convert_reply()
4620 add_lkb(r, lkb, DLM_LKSTS_CONVERT); in __receive_convert_reply()
4621 add_timeout(lkb); in __receive_convert_reply()
4626 receive_flags_reply(lkb, ms); in __receive_convert_reply()
4627 if (is_demoted(lkb)) in __receive_convert_reply()
4628 munge_demoted(lkb); in __receive_convert_reply()
4629 grant_lock_pc(r, lkb, ms); in __receive_convert_reply()
4630 queue_cast(r, lkb, 0); in __receive_convert_reply()
4635 lkb->lkb_id, ms->m_header.h_nodeid, ms->m_lkid, in __receive_convert_reply()
4638 dlm_print_lkb(lkb); in __receive_convert_reply()
4642 static void _receive_convert_reply(struct dlm_lkb *lkb, struct dlm_message *ms) in _receive_convert_reply() argument
4644 struct dlm_rsb *r = lkb->lkb_resource; in _receive_convert_reply()
4650 error = validate_message(lkb, ms); in _receive_convert_reply()
4655 error = remove_from_waiters_ms(lkb, ms); in _receive_convert_reply()
4659 __receive_convert_reply(r, lkb, ms); in _receive_convert_reply()
4667 struct dlm_lkb *lkb; in receive_convert_reply() local
4670 error = find_lkb(ls, ms->m_remid, &lkb); in receive_convert_reply()
4674 _receive_convert_reply(lkb, ms); in receive_convert_reply()
4675 dlm_put_lkb(lkb); in receive_convert_reply()
4679 static void _receive_unlock_reply(struct dlm_lkb *lkb, struct dlm_message *ms) in _receive_unlock_reply() argument
4681 struct dlm_rsb *r = lkb->lkb_resource; in _receive_unlock_reply()
4687 error = validate_message(lkb, ms); in _receive_unlock_reply()
4692 error = remove_from_waiters_ms(lkb, ms); in _receive_unlock_reply()
4700 receive_flags_reply(lkb, ms); in _receive_unlock_reply()
4701 remove_lock_pc(r, lkb); in _receive_unlock_reply()
4702 queue_cast(r, lkb, -DLM_EUNLOCK); in _receive_unlock_reply()
4708 lkb->lkb_id, ms->m_result); in _receive_unlock_reply()
4717 struct dlm_lkb *lkb; in receive_unlock_reply() local
4720 error = find_lkb(ls, ms->m_remid, &lkb); in receive_unlock_reply()
4724 _receive_unlock_reply(lkb, ms); in receive_unlock_reply()
4725 dlm_put_lkb(lkb); in receive_unlock_reply()
4729 static void _receive_cancel_reply(struct dlm_lkb *lkb, struct dlm_message *ms) in _receive_cancel_reply() argument
4731 struct dlm_rsb *r = lkb->lkb_resource; in _receive_cancel_reply()
4737 error = validate_message(lkb, ms); in _receive_cancel_reply()
4742 error = remove_from_waiters_ms(lkb, ms); in _receive_cancel_reply()
4750 receive_flags_reply(lkb, ms); in _receive_cancel_reply()
4751 revert_lock_pc(r, lkb); in _receive_cancel_reply()
4752 queue_cast(r, lkb, -DLM_ECANCEL); in _receive_cancel_reply()
4758 lkb->lkb_id, ms->m_result); in _receive_cancel_reply()
4767 struct dlm_lkb *lkb; in receive_cancel_reply() local
4770 error = find_lkb(ls, ms->m_remid, &lkb); in receive_cancel_reply()
4774 _receive_cancel_reply(lkb, ms); in receive_cancel_reply()
4775 dlm_put_lkb(lkb); in receive_cancel_reply()
4781 struct dlm_lkb *lkb; in receive_lookup_reply() local
4786 error = find_lkb(ls, ms->m_lkid, &lkb); in receive_lookup_reply()
4795 r = lkb->lkb_resource; in receive_lookup_reply()
4799 error = remove_from_waiters(lkb, DLM_MSG_LOOKUP_REPLY); in receive_lookup_reply()
4815 lkb->lkb_id, ms->m_header.h_nodeid, ret_nodeid, in receive_lookup_reply()
4828 lkb->lkb_id, ms->m_header.h_nodeid); in receive_lookup_reply()
4831 lkb->lkb_nodeid = -1; in receive_lookup_reply()
4838 if (is_overlap(lkb)) { in receive_lookup_reply()
4840 lkb->lkb_id, lkb->lkb_flags); in receive_lookup_reply()
4841 queue_cast_overlap(r, lkb); in receive_lookup_reply()
4842 unhold_lkb(lkb); /* undoes create_lkb() */ in receive_lookup_reply()
4846 _request_lock(r, lkb); in receive_lookup_reply()
4854 dlm_put_lkb(lkb); in receive_lookup_reply()
5072 static void recover_convert_waiter(struct dlm_ls *ls, struct dlm_lkb *lkb, in recover_convert_waiter() argument
5075 if (middle_conversion(lkb)) { in recover_convert_waiter()
5076 hold_lkb(lkb); in recover_convert_waiter()
5081 ms_stub->m_header.h_nodeid = lkb->lkb_nodeid; in recover_convert_waiter()
5082 _receive_convert_reply(lkb, ms_stub); in recover_convert_waiter()
5085 lkb->lkb_grmode = DLM_LOCK_IV; in recover_convert_waiter()
5086 rsb_set_flag(lkb->lkb_resource, RSB_RECOVER_CONVERT); in recover_convert_waiter()
5087 unhold_lkb(lkb); in recover_convert_waiter()
5089 } else if (lkb->lkb_rqmode >= lkb->lkb_grmode) { in recover_convert_waiter()
5090 lkb->lkb_flags |= DLM_IFL_RESEND; in recover_convert_waiter()
5100 static int waiter_needs_recovery(struct dlm_ls *ls, struct dlm_lkb *lkb, in waiter_needs_recovery() argument
5106 if (dlm_is_removed(ls, lkb->lkb_wait_nodeid)) in waiter_needs_recovery()
5120 struct dlm_lkb *lkb, *safe; in dlm_recover_waiters_pre() local
5131 list_for_each_entry_safe(lkb, safe, &ls->ls_waiters, lkb_wait_reply) { in dlm_recover_waiters_pre()
5133 dir_nodeid = dlm_dir_nodeid(lkb->lkb_resource); in dlm_recover_waiters_pre()
5138 if (lkb->lkb_wait_type != DLM_MSG_UNLOCK) { in dlm_recover_waiters_pre()
5141 lkb->lkb_id, in dlm_recover_waiters_pre()
5142 lkb->lkb_remid, in dlm_recover_waiters_pre()
5143 lkb->lkb_wait_type, in dlm_recover_waiters_pre()
5144 lkb->lkb_resource->res_nodeid, in dlm_recover_waiters_pre()
5145 lkb->lkb_nodeid, in dlm_recover_waiters_pre()
5146 lkb->lkb_wait_nodeid, in dlm_recover_waiters_pre()
5153 if (lkb->lkb_wait_type == DLM_MSG_LOOKUP) { in dlm_recover_waiters_pre()
5154 lkb->lkb_flags |= DLM_IFL_RESEND; in dlm_recover_waiters_pre()
5158 if (!waiter_needs_recovery(ls, lkb, dir_nodeid)) in dlm_recover_waiters_pre()
5161 wait_type = lkb->lkb_wait_type; in dlm_recover_waiters_pre()
5171 if (is_overlap_cancel(lkb)) { in dlm_recover_waiters_pre()
5173 if (lkb->lkb_grmode == DLM_LOCK_IV) in dlm_recover_waiters_pre()
5176 if (is_overlap_unlock(lkb)) { in dlm_recover_waiters_pre()
5178 if (lkb->lkb_grmode == DLM_LOCK_IV) in dlm_recover_waiters_pre()
5183 lkb->lkb_id, lkb->lkb_flags, wait_type, in dlm_recover_waiters_pre()
5190 lkb->lkb_flags |= DLM_IFL_RESEND; in dlm_recover_waiters_pre()
5194 recover_convert_waiter(ls, lkb, ms_stub); in dlm_recover_waiters_pre()
5198 hold_lkb(lkb); in dlm_recover_waiters_pre()
5203 ms_stub->m_header.h_nodeid = lkb->lkb_nodeid; in dlm_recover_waiters_pre()
5204 _receive_unlock_reply(lkb, ms_stub); in dlm_recover_waiters_pre()
5205 dlm_put_lkb(lkb); in dlm_recover_waiters_pre()
5209 hold_lkb(lkb); in dlm_recover_waiters_pre()
5214 ms_stub->m_header.h_nodeid = lkb->lkb_nodeid; in dlm_recover_waiters_pre()
5215 _receive_cancel_reply(lkb, ms_stub); in dlm_recover_waiters_pre()
5216 dlm_put_lkb(lkb); in dlm_recover_waiters_pre()
5221 lkb->lkb_wait_type, wait_type); in dlm_recover_waiters_pre()
5231 struct dlm_lkb *lkb; in find_resend_waiter() local
5235 list_for_each_entry(lkb, &ls->ls_waiters, lkb_wait_reply) { in find_resend_waiter()
5236 if (lkb->lkb_flags & DLM_IFL_RESEND) { in find_resend_waiter()
5237 hold_lkb(lkb); in find_resend_waiter()
5245 lkb = NULL; in find_resend_waiter()
5246 return lkb; in find_resend_waiter()
5267 struct dlm_lkb *lkb; in dlm_recover_waiters_post() local
5278 lkb = find_resend_waiter(ls); in dlm_recover_waiters_post()
5279 if (!lkb) in dlm_recover_waiters_post()
5282 r = lkb->lkb_resource; in dlm_recover_waiters_post()
5286 mstype = lkb->lkb_wait_type; in dlm_recover_waiters_post()
5287 oc = is_overlap_cancel(lkb); in dlm_recover_waiters_post()
5288 ou = is_overlap_unlock(lkb); in dlm_recover_waiters_post()
5293 "overlap %d %d", lkb->lkb_id, lkb->lkb_remid, mstype, in dlm_recover_waiters_post()
5294 r->res_nodeid, lkb->lkb_nodeid, lkb->lkb_wait_nodeid, in dlm_recover_waiters_post()
5301 lkb->lkb_flags &= ~DLM_IFL_RESEND; in dlm_recover_waiters_post()
5302 lkb->lkb_flags &= ~DLM_IFL_OVERLAP_UNLOCK; in dlm_recover_waiters_post()
5303 lkb->lkb_flags &= ~DLM_IFL_OVERLAP_CANCEL; in dlm_recover_waiters_post()
5304 lkb->lkb_wait_type = 0; in dlm_recover_waiters_post()
5305 lkb->lkb_wait_count = 0; in dlm_recover_waiters_post()
5307 list_del_init(&lkb->lkb_wait_reply); in dlm_recover_waiters_post()
5309 unhold_lkb(lkb); /* for waiters list */ in dlm_recover_waiters_post()
5316 queue_cast(r, lkb, ou ? -DLM_EUNLOCK : in dlm_recover_waiters_post()
5318 unhold_lkb(lkb); /* undoes create_lkb() */ in dlm_recover_waiters_post()
5322 queue_cast(r, lkb, -DLM_ECANCEL); in dlm_recover_waiters_post()
5324 lkb->lkb_exflags |= DLM_LKF_FORCEUNLOCK; in dlm_recover_waiters_post()
5325 _unlock_lock(r, lkb); in dlm_recover_waiters_post()
5335 _request_lock(r, lkb); in dlm_recover_waiters_post()
5340 _convert_lock(r, lkb); in dlm_recover_waiters_post()
5350 lkb->lkb_id, mstype, r->res_nodeid, in dlm_recover_waiters_post()
5355 dlm_put_lkb(lkb); in dlm_recover_waiters_post()
5364 struct dlm_lkb *lkb, *safe; in purge_mstcpy_list() local
5366 list_for_each_entry_safe(lkb, safe, list, lkb_statequeue) { in purge_mstcpy_list()
5367 if (!is_master_copy(lkb)) in purge_mstcpy_list()
5373 if (lkb->lkb_recover_seq == ls->ls_recover_seq) in purge_mstcpy_list()
5376 del_lkb(r, lkb); in purge_mstcpy_list()
5379 if (!dlm_put_lkb(lkb)) in purge_mstcpy_list()
5397 struct dlm_lkb *lkb, *safe; in purge_dead_list() local
5399 list_for_each_entry_safe(lkb, safe, list, lkb_statequeue) { in purge_dead_list()
5400 if (!is_master_copy(lkb)) in purge_dead_list()
5403 if ((lkb->lkb_nodeid == nodeid_gone) || in purge_dead_list()
5404 dlm_is_removed(ls, lkb->lkb_nodeid)) { in purge_dead_list()
5408 if ((lkb->lkb_exflags & DLM_LKF_VALBLK) && in purge_dead_list()
5409 (lkb->lkb_grmode >= DLM_LOCK_PW)) { in purge_dead_list()
5413 del_lkb(r, lkb); in purge_dead_list()
5416 if (!dlm_put_lkb(lkb)) in purge_dead_list()
5547 struct dlm_lkb *lkb; in search_remid_list() local
5549 list_for_each_entry(lkb, head, lkb_statequeue) { in search_remid_list()
5550 if (lkb->lkb_nodeid == nodeid && lkb->lkb_remid == remid) in search_remid_list()
5551 return lkb; in search_remid_list()
5559 struct dlm_lkb *lkb; in search_remid() local
5561 lkb = search_remid_list(&r->res_grantqueue, nodeid, remid); in search_remid()
5562 if (lkb) in search_remid()
5563 return lkb; in search_remid()
5564 lkb = search_remid_list(&r->res_convertqueue, nodeid, remid); in search_remid()
5565 if (lkb) in search_remid()
5566 return lkb; in search_remid()
5567 lkb = search_remid_list(&r->res_waitqueue, nodeid, remid); in search_remid()
5568 if (lkb) in search_remid()
5569 return lkb; in search_remid()
5574 static int receive_rcom_lock_args(struct dlm_ls *ls, struct dlm_lkb *lkb, in receive_rcom_lock_args() argument
5579 lkb->lkb_nodeid = rc->rc_header.h_nodeid; in receive_rcom_lock_args()
5580 lkb->lkb_ownpid = le32_to_cpu(rl->rl_ownpid); in receive_rcom_lock_args()
5581 lkb->lkb_remid = le32_to_cpu(rl->rl_lkid); in receive_rcom_lock_args()
5582 lkb->lkb_exflags = le32_to_cpu(rl->rl_exflags); in receive_rcom_lock_args()
5583 lkb->lkb_flags = le32_to_cpu(rl->rl_flags) & 0x0000FFFF; in receive_rcom_lock_args()
5584 lkb->lkb_flags |= DLM_IFL_MSTCPY; in receive_rcom_lock_args()
5585 lkb->lkb_lvbseq = le32_to_cpu(rl->rl_lvbseq); in receive_rcom_lock_args()
5586 lkb->lkb_rqmode = rl->rl_rqmode; in receive_rcom_lock_args()
5587 lkb->lkb_grmode = rl->rl_grmode; in receive_rcom_lock_args()
5590 lkb->lkb_bastfn = (rl->rl_asts & DLM_CB_BAST) ? &fake_bastfn : NULL; in receive_rcom_lock_args()
5591 lkb->lkb_astfn = (rl->rl_asts & DLM_CB_CAST) ? &fake_astfn : NULL; in receive_rcom_lock_args()
5593 if (lkb->lkb_exflags & DLM_LKF_VALBLK) { in receive_rcom_lock_args()
5598 lkb->lkb_lvbptr = dlm_allocate_lvb(ls); in receive_rcom_lock_args()
5599 if (!lkb->lkb_lvbptr) in receive_rcom_lock_args()
5601 memcpy(lkb->lkb_lvbptr, rl->rl_lvb, lvblen); in receive_rcom_lock_args()
5609 middle_conversion(lkb)) { in receive_rcom_lock_args()
5611 lkb->lkb_grmode = DLM_LOCK_IV; in receive_rcom_lock_args()
5629 struct dlm_lkb *lkb; in dlm_recover_master_copy() local
5663 lkb = search_remid(r, from_nodeid, remid); in dlm_recover_master_copy()
5664 if (lkb) { in dlm_recover_master_copy()
5669 error = create_lkb(ls, &lkb); in dlm_recover_master_copy()
5673 error = receive_rcom_lock_args(ls, lkb, r, rc); in dlm_recover_master_copy()
5675 __put_lkb(ls, lkb); in dlm_recover_master_copy()
5679 attach_lkb(r, lkb); in dlm_recover_master_copy()
5680 add_lkb(r, lkb, rl->rl_status); in dlm_recover_master_copy()
5690 rl->rl_remid = cpu_to_le32(lkb->lkb_id); in dlm_recover_master_copy()
5692 lkb->lkb_recover_seq = ls->ls_recover_seq; in dlm_recover_master_copy()
5710 struct dlm_lkb *lkb; in dlm_recover_process_copy() local
5718 error = find_lkb(ls, lkid, &lkb); in dlm_recover_process_copy()
5725 r = lkb->lkb_resource; in dlm_recover_process_copy()
5729 if (!is_process_copy(lkb)) { in dlm_recover_process_copy()
5735 dlm_put_lkb(lkb); in dlm_recover_process_copy()
5748 dlm_send_rcom_lock(r, lkb); in dlm_recover_process_copy()
5752 lkb->lkb_remid = remid; in dlm_recover_process_copy()
5765 dlm_put_lkb(lkb); in dlm_recover_process_copy()
5774 struct dlm_lkb *lkb; in dlm_user_request() local
5780 error = create_lkb(ls, &lkb); in dlm_user_request()
5790 __put_lkb(ls, lkb); in dlm_user_request()
5802 lkb->lkb_flags |= DLM_IFL_USER; in dlm_user_request()
5805 __put_lkb(ls, lkb); in dlm_user_request()
5809 error = request_lock(ls, lkb, name, namelen, &args); in dlm_user_request()
5821 __put_lkb(ls, lkb); in dlm_user_request()
5827 hold_lkb(lkb); in dlm_user_request()
5828 list_add_tail(&lkb->lkb_ownqueue, &ua->proc->locks); in dlm_user_request()
5839 struct dlm_lkb *lkb; in dlm_user_convert() local
5846 error = find_lkb(ls, lkid, &lkb); in dlm_user_convert()
5853 ua = lkb->lkb_ua; in dlm_user_convert()
5877 error = convert_lock(ls, lkb, &args); in dlm_user_convert()
5882 dlm_put_lkb(lkb); in dlm_user_convert()
5899 struct dlm_lkb *lkb; in dlm_user_adopt_orphan() local
5906 list_for_each_entry(lkb, &ls->ls_orphans, lkb_ownqueue) { in dlm_user_adopt_orphan()
5907 if (lkb->lkb_resource->res_length != namelen) in dlm_user_adopt_orphan()
5909 if (memcmp(lkb->lkb_resource->res_name, name, namelen)) in dlm_user_adopt_orphan()
5911 if (lkb->lkb_grmode != mode) { in dlm_user_adopt_orphan()
5917 list_del_init(&lkb->lkb_ownqueue); in dlm_user_adopt_orphan()
5918 lkb->lkb_flags &= ~DLM_IFL_ORPHAN; in dlm_user_adopt_orphan()
5919 *lkid = lkb->lkb_id; in dlm_user_adopt_orphan()
5934 lkb->lkb_exflags = flags; in dlm_user_adopt_orphan()
5935 lkb->lkb_ownpid = (int) current->pid; in dlm_user_adopt_orphan()
5937 ua = lkb->lkb_ua; in dlm_user_adopt_orphan()
5954 list_add_tail(&lkb->lkb_ownqueue, &ua->proc->locks); in dlm_user_adopt_orphan()
5964 struct dlm_lkb *lkb; in dlm_user_unlock() local
5971 error = find_lkb(ls, lkid, &lkb); in dlm_user_unlock()
5975 ua = lkb->lkb_ua; in dlm_user_unlock()
5987 error = unlock_lock(ls, lkb, &args); in dlm_user_unlock()
5999 if (!list_empty(&lkb->lkb_ownqueue)) in dlm_user_unlock()
6000 list_move(&lkb->lkb_ownqueue, &ua->proc->unlocking); in dlm_user_unlock()
6003 dlm_put_lkb(lkb); in dlm_user_unlock()
6013 struct dlm_lkb *lkb; in dlm_user_cancel() local
6020 error = find_lkb(ls, lkid, &lkb); in dlm_user_cancel()
6024 ua = lkb->lkb_ua; in dlm_user_cancel()
6033 error = cancel_lock(ls, lkb, &args); in dlm_user_cancel()
6041 dlm_put_lkb(lkb); in dlm_user_cancel()
6050 struct dlm_lkb *lkb; in dlm_user_deadlock() local
6058 error = find_lkb(ls, lkid, &lkb); in dlm_user_deadlock()
6062 ua = lkb->lkb_ua; in dlm_user_deadlock()
6070 r = lkb->lkb_resource; in dlm_user_deadlock()
6074 error = validate_unlock_args(lkb, &args); in dlm_user_deadlock()
6077 lkb->lkb_flags |= DLM_IFL_DEADLOCK_CANCEL; in dlm_user_deadlock()
6079 error = _cancel_lock(r, lkb); in dlm_user_deadlock()
6090 dlm_put_lkb(lkb); in dlm_user_deadlock()
6099 static int orphan_proc_lock(struct dlm_ls *ls, struct dlm_lkb *lkb) in orphan_proc_lock() argument
6104 hold_lkb(lkb); /* reference for the ls_orphans list */ in orphan_proc_lock()
6106 list_add_tail(&lkb->lkb_ownqueue, &ls->ls_orphans); in orphan_proc_lock()
6109 set_unlock_args(0, lkb->lkb_ua, &args); in orphan_proc_lock()
6111 error = cancel_lock(ls, lkb, &args); in orphan_proc_lock()
6122 static int unlock_proc_lock(struct dlm_ls *ls, struct dlm_lkb *lkb) in unlock_proc_lock() argument
6128 lkb->lkb_ua, &args); in unlock_proc_lock()
6130 error = unlock_lock(ls, lkb, &args); in unlock_proc_lock()
6143 struct dlm_lkb *lkb = NULL; in del_proc_lock() local
6149 lkb = list_entry(proc->locks.next, struct dlm_lkb, lkb_ownqueue); in del_proc_lock()
6150 list_del_init(&lkb->lkb_ownqueue); in del_proc_lock()
6152 if (lkb->lkb_exflags & DLM_LKF_PERSISTENT) in del_proc_lock()
6153 lkb->lkb_flags |= DLM_IFL_ORPHAN; in del_proc_lock()
6155 lkb->lkb_flags |= DLM_IFL_DEAD; in del_proc_lock()
6158 return lkb; in del_proc_lock()
6173 struct dlm_lkb *lkb, *safe; in dlm_clear_proc_locks() local
6178 lkb = del_proc_lock(ls, proc); in dlm_clear_proc_locks()
6179 if (!lkb) in dlm_clear_proc_locks()
6181 del_timeout(lkb); in dlm_clear_proc_locks()
6182 if (lkb->lkb_exflags & DLM_LKF_PERSISTENT) in dlm_clear_proc_locks()
6183 orphan_proc_lock(ls, lkb); in dlm_clear_proc_locks()
6185 unlock_proc_lock(ls, lkb); in dlm_clear_proc_locks()
6191 dlm_put_lkb(lkb); in dlm_clear_proc_locks()
6197 list_for_each_entry_safe(lkb, safe, &proc->unlocking, lkb_ownqueue) { in dlm_clear_proc_locks()
6198 list_del_init(&lkb->lkb_ownqueue); in dlm_clear_proc_locks()
6199 lkb->lkb_flags |= DLM_IFL_DEAD; in dlm_clear_proc_locks()
6200 dlm_put_lkb(lkb); in dlm_clear_proc_locks()
6203 list_for_each_entry_safe(lkb, safe, &proc->asts, lkb_cb_list) { in dlm_clear_proc_locks()
6204 memset(&lkb->lkb_callbacks, 0, in dlm_clear_proc_locks()
6206 list_del_init(&lkb->lkb_cb_list); in dlm_clear_proc_locks()
6207 dlm_put_lkb(lkb); in dlm_clear_proc_locks()
6216 struct dlm_lkb *lkb, *safe; in purge_proc_locks() local
6219 lkb = NULL; in purge_proc_locks()
6222 lkb = list_entry(proc->locks.next, struct dlm_lkb, in purge_proc_locks()
6224 list_del_init(&lkb->lkb_ownqueue); in purge_proc_locks()
6228 if (!lkb) in purge_proc_locks()
6231 lkb->lkb_flags |= DLM_IFL_DEAD; in purge_proc_locks()
6232 unlock_proc_lock(ls, lkb); in purge_proc_locks()
6233 dlm_put_lkb(lkb); /* ref from proc->locks list */ in purge_proc_locks()
6237 list_for_each_entry_safe(lkb, safe, &proc->unlocking, lkb_ownqueue) { in purge_proc_locks()
6238 list_del_init(&lkb->lkb_ownqueue); in purge_proc_locks()
6239 lkb->lkb_flags |= DLM_IFL_DEAD; in purge_proc_locks()
6240 dlm_put_lkb(lkb); in purge_proc_locks()
6245 list_for_each_entry_safe(lkb, safe, &proc->asts, lkb_cb_list) { in purge_proc_locks()
6246 memset(&lkb->lkb_callbacks, 0, in purge_proc_locks()
6248 list_del_init(&lkb->lkb_cb_list); in purge_proc_locks()
6249 dlm_put_lkb(lkb); in purge_proc_locks()
6258 struct dlm_lkb *lkb, *safe; in do_purge() local
6261 list_for_each_entry_safe(lkb, safe, &ls->ls_orphans, lkb_ownqueue) { in do_purge()
6262 if (pid && lkb->lkb_ownpid != pid) in do_purge()
6264 unlock_proc_lock(ls, lkb); in do_purge()
6265 list_del_init(&lkb->lkb_ownqueue); in do_purge()
6266 dlm_put_lkb(lkb); in do_purge()