diff options
Diffstat (limited to 'fs/ocfs2/dlm')
| -rw-r--r-- | fs/ocfs2/dlm/dlmast.c | 76 | ||||
| -rw-r--r-- | fs/ocfs2/dlm/dlmcommon.h | 86 | ||||
| -rw-r--r-- | fs/ocfs2/dlm/dlmdebug.c | 200 | ||||
| -rw-r--r-- | fs/ocfs2/dlm/dlmdebug.h | 5 | ||||
| -rw-r--r-- | fs/ocfs2/dlm/dlmdomain.c | 10 | ||||
| -rw-r--r-- | fs/ocfs2/dlm/dlmlock.c | 3 | ||||
| -rw-r--r-- | fs/ocfs2/dlm/dlmmaster.c | 40 | ||||
| -rw-r--r-- | fs/ocfs2/dlm/dlmthread.c | 132 |
8 files changed, 271 insertions, 281 deletions
diff --git a/fs/ocfs2/dlm/dlmast.c b/fs/ocfs2/dlm/dlmast.c index f44999156839..3a3ed4bb794b 100644 --- a/fs/ocfs2/dlm/dlmast.c +++ b/fs/ocfs2/dlm/dlmast.c @@ -90,19 +90,29 @@ static int dlm_should_cancel_bast(struct dlm_ctxt *dlm, struct dlm_lock *lock) void __dlm_queue_ast(struct dlm_ctxt *dlm, struct dlm_lock *lock) { - mlog_entry_void(); + struct dlm_lock_resource *res; BUG_ON(!dlm); BUG_ON(!lock); + res = lock->lockres; + assert_spin_locked(&dlm->ast_lock); + if (!list_empty(&lock->ast_list)) { - mlog(ML_ERROR, "ast list not empty!! pending=%d, newlevel=%d\n", + mlog(ML_ERROR, "%s: res %.*s, lock %u:%llu, " + "AST list not empty, pending %d, newlevel %d\n", + dlm->name, res->lockname.len, res->lockname.name, + dlm_get_lock_cookie_node(be64_to_cpu(lock->ml.cookie)), + dlm_get_lock_cookie_seq(be64_to_cpu(lock->ml.cookie)), lock->ast_pending, lock->ml.type); BUG(); } if (lock->ast_pending) - mlog(0, "lock has an ast getting flushed right now\n"); + mlog(0, "%s: res %.*s, lock %u:%llu, AST getting flushed\n", + dlm->name, res->lockname.len, res->lockname.name, + dlm_get_lock_cookie_node(be64_to_cpu(lock->ml.cookie)), + dlm_get_lock_cookie_seq(be64_to_cpu(lock->ml.cookie))); /* putting lock on list, add a ref */ dlm_lock_get(lock); @@ -110,9 +120,10 @@ void __dlm_queue_ast(struct dlm_ctxt *dlm, struct dlm_lock *lock) /* check to see if this ast obsoletes the bast */ if (dlm_should_cancel_bast(dlm, lock)) { - struct dlm_lock_resource *res = lock->lockres; - mlog(0, "%s: cancelling bast for %.*s\n", - dlm->name, res->lockname.len, res->lockname.name); + mlog(0, "%s: res %.*s, lock %u:%llu, Cancelling BAST\n", + dlm->name, res->lockname.len, res->lockname.name, + dlm_get_lock_cookie_node(be64_to_cpu(lock->ml.cookie)), + dlm_get_lock_cookie_seq(be64_to_cpu(lock->ml.cookie))); lock->bast_pending = 0; list_del_init(&lock->bast_list); lock->ml.highest_blocked = LKM_IVMODE; @@ -134,8 +145,6 @@ void __dlm_queue_ast(struct dlm_ctxt *dlm, struct dlm_lock *lock) void dlm_queue_ast(struct dlm_ctxt *dlm, struct dlm_lock *lock) { - mlog_entry_void(); - BUG_ON(!dlm); BUG_ON(!lock); @@ -147,15 +156,21 @@ void dlm_queue_ast(struct dlm_ctxt *dlm, struct dlm_lock *lock) void __dlm_queue_bast(struct dlm_ctxt *dlm, struct dlm_lock *lock) { - mlog_entry_void(); + struct dlm_lock_resource *res; BUG_ON(!dlm); BUG_ON(!lock); + assert_spin_locked(&dlm->ast_lock); + res = lock->lockres; + BUG_ON(!list_empty(&lock->bast_list)); if (lock->bast_pending) - mlog(0, "lock has a bast getting flushed right now\n"); + mlog(0, "%s: res %.*s, lock %u:%llu, BAST getting flushed\n", + dlm->name, res->lockname.len, res->lockname.name, + dlm_get_lock_cookie_node(be64_to_cpu(lock->ml.cookie)), + dlm_get_lock_cookie_seq(be64_to_cpu(lock->ml.cookie))); /* putting lock on list, add a ref */ dlm_lock_get(lock); @@ -167,8 +182,6 @@ void __dlm_queue_bast(struct dlm_ctxt *dlm, struct dlm_lock *lock) void dlm_queue_bast(struct dlm_ctxt *dlm, struct dlm_lock *lock) { - mlog_entry_void(); - BUG_ON(!dlm); BUG_ON(!lock); @@ -213,7 +226,10 @@ void dlm_do_local_ast(struct dlm_ctxt *dlm, struct dlm_lock_resource *res, dlm_astlockfunc_t *fn; struct dlm_lockstatus *lksb; - mlog_entry_void(); + mlog(0, "%s: res %.*s, lock %u:%llu, Local AST\n", dlm->name, + res->lockname.len, res->lockname.name, + dlm_get_lock_cookie_node(be64_to_cpu(lock->ml.cookie)), + dlm_get_lock_cookie_seq(be64_to_cpu(lock->ml.cookie))); lksb = lock->lksb; fn = lock->ast; @@ -231,7 +247,10 @@ int dlm_do_remote_ast(struct dlm_ctxt *dlm, struct dlm_lock_resource *res, struct dlm_lockstatus *lksb; int lksbflags; - mlog_entry_void(); + mlog(0, "%s: res %.*s, lock %u:%llu, Remote AST\n", dlm->name, + res->lockname.len, res->lockname.name, + dlm_get_lock_cookie_node(be64_to_cpu(lock->ml.cookie)), + dlm_get_lock_cookie_seq(be64_to_cpu(lock->ml.cookie))); lksb = lock->lksb; BUG_ON(lock->ml.node == dlm->node_num); @@ -250,9 +269,14 @@ void dlm_do_local_bast(struct dlm_ctxt *dlm, struct dlm_lock_resource *res, { dlm_bastlockfunc_t *fn = lock->bast; - mlog_entry_void(); BUG_ON(lock->ml.node != dlm->node_num); + mlog(0, "%s: res %.*s, lock %u:%llu, Local BAST, blocked %d\n", + dlm->name, res->lockname.len, res->lockname.name, + dlm_get_lock_cookie_node(be64_to_cpu(lock->ml.cookie)), + dlm_get_lock_cookie_seq(be64_to_cpu(lock->ml.cookie)), + blocked_type); + (*fn)(lock->astdata, blocked_type); } @@ -332,7 +356,8 @@ int dlm_proxy_ast_handler(struct o2net_msg *msg, u32 len, void *data, /* cannot get a proxy ast message if this node owns it */ BUG_ON(res->owner == dlm->node_num); - mlog(0, "lockres %.*s\n", res->lockname.len, res->lockname.name); + mlog(0, "%s: res %.*s\n", dlm->name, res->lockname.len, + res->lockname.name); spin_lock(&res->spinlock); if (res->state & DLM_LOCK_RES_RECOVERING) { @@ -382,8 +407,12 @@ do_ast: if (past->type == DLM_AST) { /* do not alter lock refcount. switching lists. */ list_move_tail(&lock->list, &res->granted); - mlog(0, "ast: Adding to granted list... type=%d, " - "convert_type=%d\n", lock->ml.type, lock->ml.convert_type); + mlog(0, "%s: res %.*s, lock %u:%llu, Granted type %d => %d\n", + dlm->name, res->lockname.len, res->lockname.name, + dlm_get_lock_cookie_node(be64_to_cpu(cookie)), + dlm_get_lock_cookie_seq(be64_to_cpu(cookie)), + lock->ml.type, lock->ml.convert_type); + if (lock->ml.convert_type != LKM_IVMODE) { lock->ml.type = lock->ml.convert_type; lock->ml.convert_type = LKM_IVMODE; @@ -426,9 +455,9 @@ int dlm_send_proxy_ast_msg(struct dlm_ctxt *dlm, struct dlm_lock_resource *res, size_t veclen = 1; int status; - mlog_entry("res %.*s, to=%u, type=%d, blocked_type=%d\n", - res->lockname.len, res->lockname.name, lock->ml.node, - msg_type, blocked_type); + mlog(0, "%s: res %.*s, to %u, type %d, blocked_type %d\n", dlm->name, + res->lockname.len, res->lockname.name, lock->ml.node, msg_type, + blocked_type); memset(&past, 0, sizeof(struct dlm_proxy_ast)); past.node_idx = dlm->node_num; @@ -441,7 +470,6 @@ int dlm_send_proxy_ast_msg(struct dlm_ctxt *dlm, struct dlm_lock_resource *res, vec[0].iov_len = sizeof(struct dlm_proxy_ast); vec[0].iov_base = &past; if (flags & DLM_LKSB_GET_LVB) { - mlog(0, "returning requested LVB data\n"); be32_add_cpu(&past.flags, LKM_GET_LVB); vec[1].iov_len = DLM_LVB_LEN; vec[1].iov_base = lock->lksb->lvb; @@ -451,8 +479,8 @@ int dlm_send_proxy_ast_msg(struct dlm_ctxt *dlm, struct dlm_lock_resource *res, ret = o2net_send_message_vec(DLM_PROXY_AST_MSG, dlm->key, vec, veclen, lock->ml.node, &status); if (ret < 0) - mlog(ML_ERROR, "Error %d when sending message %u (key 0x%x) to " - "node %u\n", ret, DLM_PROXY_AST_MSG, dlm->key, + mlog(ML_ERROR, "%s: res %.*s, error %d send AST to node %u\n", + dlm->name, res->lockname.len, res->lockname.name, ret, lock->ml.node); else { if (status == DLM_RECOVERING) { diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h index b36d0bf77a5a..4bdf7baee344 100644 --- a/fs/ocfs2/dlm/dlmcommon.h +++ b/fs/ocfs2/dlm/dlmcommon.h @@ -50,10 +50,10 @@ #define dlm_lockid_hash(_n, _l) full_name_hash(_n, _l) enum dlm_mle_type { - DLM_MLE_BLOCK, - DLM_MLE_MASTER, - DLM_MLE_MIGRATION, - DLM_MLE_NUM_TYPES + DLM_MLE_BLOCK = 0, + DLM_MLE_MASTER = 1, + DLM_MLE_MIGRATION = 2, + DLM_MLE_NUM_TYPES = 3, }; struct dlm_master_list_entry { @@ -82,8 +82,8 @@ struct dlm_master_list_entry { enum dlm_ast_type { DLM_AST = 0, - DLM_BAST, - DLM_ASTUNLOCK + DLM_BAST = 1, + DLM_ASTUNLOCK = 2, }; @@ -119,9 +119,9 @@ struct dlm_recovery_ctxt enum dlm_ctxt_state { DLM_CTXT_NEW = 0, - DLM_CTXT_JOINED, - DLM_CTXT_IN_SHUTDOWN, - DLM_CTXT_LEAVING, + DLM_CTXT_JOINED = 1, + DLM_CTXT_IN_SHUTDOWN = 2, + DLM_CTXT_LEAVING = 3, }; struct dlm_ctxt @@ -388,8 +388,8 @@ struct dlm_lock enum dlm_lockres_list { DLM_GRANTED_LIST = 0, - DLM_CONVERTING_LIST, - DLM_BLOCKED_LIST + DLM_CONVERTING_LIST = 1, + DLM_BLOCKED_LIST = 2, }; static inline int dlm_lvb_is_empty(char *lvb) @@ -427,27 +427,27 @@ struct dlm_node_iter enum { - DLM_MASTER_REQUEST_MSG = 500, - DLM_UNUSED_MSG1, /* 501 */ - DLM_ASSERT_MASTER_MSG, /* 502 */ - DLM_CREATE_LOCK_MSG, /* 503 */ - DLM_CONVERT_LOCK_MSG, /* 504 */ - DLM_PROXY_AST_MSG, /* 505 */ - DLM_UNLOCK_LOCK_MSG, /* 506 */ - DLM_DEREF_LOCKRES_MSG, /* 507 */ - DLM_MIGRATE_REQUEST_MSG, /* 508 */ - DLM_MIG_LOCKRES_MSG, /* 509 */ - DLM_QUERY_JOIN_MSG, /* 510 */ - DLM_ASSERT_JOINED_MSG, /* 511 */ - DLM_CANCEL_JOIN_MSG, /* 512 */ - DLM_EXIT_DOMAIN_MSG, /* 513 */ - DLM_MASTER_REQUERY_MSG, /* 514 */ - DLM_LOCK_REQUEST_MSG, /* 515 */ - DLM_RECO_DATA_DONE_MSG, /* 516 */ - DLM_BEGIN_RECO_MSG, /* 517 */ - DLM_FINALIZE_RECO_MSG, /* 518 */ - DLM_QUERY_REGION, /* 519 */ - DLM_QUERY_NODEINFO, /* 520 */ + DLM_MASTER_REQUEST_MSG = 500, + DLM_UNUSED_MSG1 = 501, + DLM_ASSERT_MASTER_MSG = 502, + DLM_CREATE_LOCK_MSG = 503, + DLM_CONVERT_LOCK_MSG = 504, + DLM_PROXY_AST_MSG = 505, + DLM_UNLOCK_LOCK_MSG = 506, + DLM_DEREF_LOCKRES_MSG = 507, + DLM_MIGRATE_REQUEST_MSG = 508, + DLM_MIG_LOCKRES_MSG = 509, + DLM_QUERY_JOIN_MSG = 510, + DLM_ASSERT_JOINED_MSG = 511, + DLM_CANCEL_JOIN_MSG = 512, + DLM_EXIT_DOMAIN_MSG = 513, + DLM_MASTER_REQUERY_MSG = 514, + DLM_LOCK_REQUEST_MSG = 515, + DLM_RECO_DATA_DONE_MSG = 516, + DLM_BEGIN_RECO_MSG = 517, + DLM_FINALIZE_RECO_MSG = 518, + DLM_QUERY_REGION = 519, + DLM_QUERY_NODEINFO = 520, }; struct dlm_reco_node_data @@ -460,19 +460,19 @@ struct dlm_reco_node_data enum { DLM_RECO_NODE_DATA_DEAD = -1, DLM_RECO_NODE_DATA_INIT = 0, - DLM_RECO_NODE_DATA_REQUESTING, - DLM_RECO_NODE_DATA_REQUESTED, - DLM_RECO_NODE_DATA_RECEIVING, - DLM_RECO_NODE_DATA_DONE, - DLM_RECO_NODE_DATA_FINALIZE_SENT, + DLM_RECO_NODE_DATA_REQUESTING = 1, + DLM_RECO_NODE_DATA_REQUESTED = 2, + DLM_RECO_NODE_DATA_RECEIVING = 3, + DLM_RECO_NODE_DATA_DONE = 4, + DLM_RECO_NODE_DATA_FINALIZE_SENT = 5, }; enum { DLM_MASTER_RESP_NO = 0, - DLM_MASTER_RESP_YES, - DLM_MASTER_RESP_MAYBE, - DLM_MASTER_RESP_ERROR + DLM_MASTER_RESP_YES = 1, + DLM_MASTER_RESP_MAYBE = 2, + DLM_MASTER_RESP_ERROR = 3, }; @@ -649,9 +649,9 @@ struct dlm_proxy_ast #define DLM_MOD_KEY (0x666c6172) enum dlm_query_join_response_code { JOIN_DISALLOW = 0, - JOIN_OK, - JOIN_OK_NO_MAP, - JOIN_PROTOCOL_MISMATCH, + JOIN_OK = 1, + JOIN_OK_NO_MAP = 2, + JOIN_PROTOCOL_MISMATCH = 3, }; struct dlm_query_join_packet { diff --git a/fs/ocfs2/dlm/dlmdebug.c b/fs/ocfs2/dlm/dlmdebug.c index 272ec8631a51..04a32be0aeb9 100644 --- a/fs/ocfs2/dlm/dlmdebug.c +++ b/fs/ocfs2/dlm/dlmdebug.c @@ -370,92 +370,46 @@ static void dlm_debug_get(struct dlm_debug_ctxt *dc) kref_get(&dc->debug_refcnt); } -static struct debug_buffer *debug_buffer_allocate(void) +static int debug_release(struct inode *inode, struct file *file) { - struct debug_buffer *db = NULL; - - db = kzalloc(sizeof(struct debug_buffer), GFP_KERNEL); - if (!db) - goto bail; - - db->len = PAGE_SIZE; - db->buf = kmalloc(db->len, GFP_KERNEL); - if (!db->buf) - goto bail; - - return db; -bail: - kfree(db); - return NULL; -} - -static ssize_t debug_buffer_read(struct file *file, char __user *buf, - size_t nbytes, loff_t *ppos) -{ - struct debug_buffer *db = file->private_data; - - return simple_read_from_buffer(buf, nbytes, ppos, db->buf, db->len); -} - -static loff_t debug_buffer_llseek(struct file *file, loff_t off, int whence) -{ - struct debug_buffer *db = file->private_data; - loff_t new = -1; - - switch (whence) { - case 0: - new = off; - break; - case 1: - new = file->f_pos + off; - break; - } - - if (new < 0 || new > db->len) - return -EINVAL; - - return (file->f_pos = new); + free_page((unsigned long)file->private_data); + return 0; } -static int debug_buffer_release(struct inode *inode, struct file *file) +static ssize_t debug_read(struct file *file, char __user *buf, + size_t nbytes, loff_t *ppos) { - struct debug_buffer *db = file->private_data; - - if (db) - kfree(db->buf); - kfree(db); - - return 0; + return simple_read_from_buffer(buf, nbytes, ppos, file->private_data, + i_size_read(file->f_mapping->host)); } /* end - util funcs */ /* begin - purge list funcs */ -static int debug_purgelist_print(struct dlm_ctxt *dlm, struct debug_buffer *db) +static int debug_purgelist_print(struct dlm_ctxt *dlm, char *buf, int len) { struct dlm_lock_resource *res; int out = 0; unsigned long total = 0; - out += snprintf(db->buf + out, db->len - out, + out += snprintf(buf + out, len - out, "Dumping Purgelist for Domain: %s\n", dlm->name); spin_lock(&dlm->spinlock); list_for_each_entry(res, &dlm->purge_list, purge) { ++total; - if (db->len - out < 100) + if (len - out < 100) continue; spin_lock(&res->spinlock); out += stringify_lockname(res->lockname.name, res->lockname.len, - db->buf + out, db->len - out); - out += snprintf(db->buf + out, db->len - out, "\t%ld\n", + buf + out, len - out); + out += snprintf(buf + out, len - out, "\t%ld\n", (jiffies - res->last_used)/HZ); spin_unlock(&res->spinlock); } spin_unlock(&dlm->spinlock); - out += snprintf(db->buf + out, db->len - out, - "Total on list: %ld\n", total); + out += snprintf(buf + out, len - out, "Total on list: %ld\n", total); return out; } @@ -463,15 +417,15 @@ static int debug_purgelist_print(struct dlm_ctxt *dlm, struct debug_buffer *db) static int debug_purgelist_open(struct inode *inode, struct file *file) { struct dlm_ctxt *dlm = inode->i_private; - struct debug_buffer *db; + char *buf = NULL; - db = debug_buffer_allocate(); - if (!db) + buf = (char *) get_zeroed_page(GFP_NOFS); + if (!buf) goto bail; - db->len = debug_purgelist_print(dlm, db); + i_size_write(inode, debug_purgelist_print(dlm, buf, PAGE_SIZE - 1)); - file->private_data = db; + file->private_data = buf; return 0; bail: @@ -480,14 +434,14 @@ bail: static const struct file_operations debug_purgelist_fops = { .open = debug_purgelist_open, - .release = debug_buffer_release, - .read = debug_buffer_read, - .llseek = debug_buffer_llseek, + .release = debug_release, + .read = debug_read, + .llseek = generic_file_llseek, }; /* end - purge list funcs */ /* begin - debug mle funcs */ -static int debug_mle_print(struct dlm_ctxt *dlm, struct debug_buffer *db) +static int debug_mle_print(struct dlm_ctxt *dlm, char *buf, int len) { struct dlm_master_list_entry *mle; struct hlist_head *bucket; @@ -495,7 +449,7 @@ static int debug_mle_print(struct dlm_ctxt *dlm, struct debug_buffer *db) int i, out = 0; unsigned long total = 0, longest = 0, bucket_count = 0; - out += snprintf(db->buf + out, db->len - out, + out += snprintf(buf + out, len - out, "Dumping MLEs for Domain: %s\n", dlm->name); spin_lock(&dlm->master_lock); @@ -506,16 +460,16 @@ static int debug_mle_print(struct dlm_ctxt *dlm, struct debug_buffer *db) master_hash_node); ++total; ++bucket_count; - if (db->len - out < 200) + if (len - out < 200) continue; - out += dump_mle(mle, db->buf + out, db->len - out); + out += dump_mle(mle, buf + out, len - out); } longest = max(longest, bucket_count); bucket_count = 0; } spin_unlock(&dlm->master_lock); - out += snprintf(db->buf + out, db->len - out, + out += snprintf(buf + out, len - out, "Total: %ld, Longest: %ld\n", total, longest); return out; } @@ -523,15 +477,15 @@ static int debug_mle_print(struct dlm_ctxt *dlm, struct debug_buffer *db) static int debug_mle_open(struct inode *inode, struct file *file) { struct dlm_ctxt *dlm = inode->i_private; - struct debug_buffer *db; + char *buf = NULL; - db = debug_buffer_allocate(); - if (!db) + buf = (char *) get_zeroed_page(GFP_NOFS); + if (!buf) goto bail; - db->len = debug_mle_print(dlm, db); + i_size_write(inode, debug_mle_print(dlm, buf, PAGE_SIZE - 1)); - file->private_data = db; + file->private_data = buf; return 0; bail: @@ -540,9 +494,9 @@ bail: static const struct file_operations debug_mle_fops = { .open = debug_mle_open, - .release = debug_buffer_release, - .read = debug_buffer_read, - .llseek = debug_buffer_llseek, + .release = debug_release, + .read = debug_read, + .llseek = generic_file_llseek, }; /* end - debug mle funcs */ @@ -757,7 +711,7 @@ static const struct file_operations debug_lockres_fops = { /* end - debug lockres funcs */ /* begin - debug state funcs */ -static int debug_state_print(struct dlm_ctxt *dlm, struct debug_buffer *db) +static int debug_state_print(struct dlm_ctxt *dlm, char *buf, int len) { int out = 0; struct dlm_reco_node_data *node; @@ -781,35 +735,35 @@ static int debug_state_print(struct dlm_ctxt *dlm, struct debug_buffer *db) } /* Domain: xxxxxxxxxx Key: 0xdfbac769 */ - out += snprintf(db->buf + out, db->len - out, + out += snprintf(buf + out, len - out, "Domain: %s Key: 0x%08x Protocol: %d.%d\n", dlm->name, dlm->key, dlm->dlm_locking_proto.pv_major, dlm->dlm_locking_proto.pv_minor); /* Thread Pid: xxx Node: xxx State: xxxxx */ - out += snprintf(db->buf + out, db->len - out, + out += snprintf(buf + out, len - out, "Thread Pid: %d Node: %d State: %s\n", - dlm->dlm_thread_task->pid, dlm->node_num, state); + task_pid_nr(dlm->dlm_thread_task), dlm->node_num, state); /* Number of Joins: xxx Joining Node: xxx */ - out += snprintf(db->buf + out, db->len - out, + out += snprintf(buf + out, len - out, "Number of Joins: %d Joining Node: %d\n", dlm->num_joins, dlm->joining_node); /* Domain Map: xx xx xx */ - out += snprintf(db->buf + out, db->len - out, "Domain Map: "); + out += snprintf(buf + out, len - out, "Domain Map: "); out += stringify_nodemap(dlm->domain_map, O2NM_MAX_NODES, - db->buf + out, db->len - out); - out += snprintf(db->buf + out, db->len - out, "\n"); + buf + out, len - out); + out += snprintf(buf + out, len - out, "\n"); /* Live Map: xx xx xx */ - out += snprintf(db->buf + out, db->len - out, "Live Map: "); + out += snprintf(buf + out, len - out, "Live Map: "); out += stringify_nodemap(dlm->live_nodes_map, O2NM_MAX_NODES, - db->buf + out, db->len - out); - out += snprintf(db->buf + out, db->len - out, "\n"); + buf + out, len - out); + out += snprintf(buf + out, len - out, "\n"); /* Lock Resources: xxx (xxx) */ - out += snprintf(db->buf + out, db->len - out, + out += snprintf(buf + out, len - out, "Lock Resources: %d (%d)\n", atomic_read(&dlm->res_cur_count), atomic_read(&dlm->res_tot_count)); @@ -821,29 +775,29 @@ static int debug_state_print(struct dlm_ctxt *dlm, struct debug_buffer *db) cur_mles += atomic_read(&dlm->mle_cur_count[i]); /* MLEs: xxx (xxx) */ - out += snprintf(db->buf + out, db->len - out, + out += snprintf(buf + out, len - out, "MLEs: %d (%d)\n", cur_mles, tot_mles); /* Blocking: xxx (xxx) */ - out += snprintf(db->buf + out, db->len - out, + out += snprintf(buf + out, len - out, " Blocking: %d (%d)\n", atomic_read(&dlm->mle_cur_count[DLM_MLE_BLOCK]), atomic_read(&dlm->mle_tot_count[DLM_MLE_BLOCK])); /* Mastery: xxx (xxx) */ - out += snprintf(db->buf + out, db->len - out, + out += snprintf(buf + out, len - out, " Mastery: %d (%d)\n", atomic_read(&dlm->mle_cur_count[DLM_MLE_MASTER]), atomic_read(&dlm->mle_tot_count[DLM_MLE_MASTER])); /* Migration: xxx (xxx) */ - out += snprintf(db->buf + out, db->len - out, + out += snprintf(buf + out, len - out, " Migration: %d (%d)\n", atomic_read(&dlm->mle_cur_count[DLM_MLE_MIGRATION]), atomic_read(&dlm->mle_tot_count[DLM_MLE_MIGRATION])); /* Lists: Dirty=Empty Purge=InUse PendingASTs=Empty ... */ - out += snprintf(db->buf + out, db->len - out, + out += snprintf(buf + out, len - out, "Lists: Dirty=%s Purge=%s PendingASTs=%s " "PendingBASTs=%s\n", (list_empty(&dlm->dirty_list) ? "Empty" : "InUse"), @@ -852,12 +806,12 @@ static int debug_state_print(struct dlm_ctxt *dlm, struct debug_buffer *db) (list_empty(&dlm->pending_basts) ? "Empty" : "InUse")); /* Purge Count: xxx Refs: xxx */ - out += snprintf(db->buf + out, db->len - out, + out += snprintf(buf + out, len - out, "Purge Count: %d Refs: %d\n", dlm->purge_count, atomic_read(&dlm->dlm_refs.refcount)); /* Dead Node: xxx */ - out += snprintf(db->buf + out, db->len - out, + out += snprintf(buf + out, len - out, "Dead Node: %d\n", dlm->reco.dead_node); /* What about DLM_RECO_STATE_FINALIZE? */ @@ -867,19 +821,19 @@ static int debug_state_print(struct dlm_ctxt *dlm, struct debug_buffer *db) state = "INACTIVE"; /* Recovery Pid: xxxx Master: xxx State: xxxx */ - out += snprintf(db->buf + out, db->len - out, + out += snprintf(buf + out, len - out, "Recovery Pid: %d Master: %d State: %s\n", - dlm->dlm_reco_thread_task->pid, + task_pid_nr(dlm->dlm_reco_thread_task), dlm->reco.new_master, state); /* Recovery Map: xx xx */ - out += snprintf(db->buf + out, db->len - out, "Recovery Map: "); + out += snprintf(buf + out, len - out, "Recovery Map: "); out += stringify_nodemap(dlm->recovery_map, O2NM_MAX_NODES, - db->buf + out, db->len - out); - out += snprintf(db->buf + out, db->len - out, "\n"); + buf + out, len - out); + out += snprintf(buf + out, len - out, "\n"); /* Recovery Node State: */ - out += snprintf(db->buf + out, db->len - out, "Recovery Node State:\n"); + out += snprintf(buf + out, len - out, "Recovery Node State:\n"); list_for_each_entry(node, &dlm->reco.node_data, list) { switch (node->state) { case DLM_RECO_NODE_DATA_INIT: @@ -907,7 +861,7 @@ static int debug_state_print(struct dlm_ctxt *dlm, struct debug_buffer *db) state = "BAD"; break; } - out += snprintf(db->buf + out, db->len - out, "\t%u - %s\n", + out += snprintf(buf + out, len - out, "\t%u - %s\n", node->node_num, state); } @@ -919,15 +873,15 @@ static int debug_state_print(struct dlm_ctxt *dlm, struct debug_buffer *db) static int debug_state_open(struct inode *inode, struct file *file) { struct dlm_ctxt *dlm = inode->i_private; - struct debug_buffer *db = NULL; + char *buf = NULL; - db = debug_buffer_allocate(); - if (!db) + buf = (char *) get_zeroed_page(GFP_NOFS); + if (!buf) goto bail; - db->len = debug_state_print(dlm, db); + i_size_write(inode, debug_state_print(dlm, buf, PAGE_SIZE - 1)); - file->private_data = db; + file->private_data = buf; return 0; bail: @@ -936,9 +890,9 @@ bail: static const struct file_operations debug_state_fops = { .open = debug_state_open, - .release = debug_buffer_release, - .read = debug_buffer_read, - .llseek = debug_buffer_llseek, + .release = debug_release, + .read = debug_read, + .llseek = generic_file_llseek, }; /* end - debug state funcs */ @@ -1002,14 +956,10 @@ void dlm_debug_shutdown(struct dlm_ctxt *dlm) struct dlm_debug_ctxt *dc = dlm->dlm_debug_ctxt; if (dc) { - if (dc->debug_purgelist_dentry) - debugfs_remove(dc->debug_purgelist_dentry); - if (dc->debug_mle_dentry) - debugfs_remove(dc->debug_mle_dentry); - if (dc->debug_lockres_dentry) - debugfs_remove(dc->debug_lockres_dentry); - if (dc->debug_state_dentry) - debugfs_remove(dc->debug_state_dentry); + debugfs_remove(dc->debug_purgelist_dentry); + debugfs_remove(dc->debug_mle_dentry); + debugfs_remove(dc->debug_lockres_dentry); + debugfs_remove(dc->debug_state_dentry); dlm_debug_put(dc); } } @@ -1040,8 +990,7 @@ bail: void dlm_destroy_debugfs_subroot(struct dlm_ctxt *dlm) { - if (dlm->dlm_debugfs_subroot) - debugfs_remove(dlm->dlm_debugfs_subroot); + debugfs_remove(dlm->dlm_debugfs_subroot); } /* debugfs root */ @@ -1057,7 +1006,6 @@ int dlm_create_debugfs_root(void) void dlm_destroy_debugfs_root(void) { - if (dlm_debugfs_root) - debugfs_remove(dlm_debugfs_root); + debugfs_remove(dlm_debugfs_root); } #endif /* CONFIG_DEBUG_FS */ diff --git a/fs/ocfs2/dlm/dlmdebug.h b/fs/ocfs2/dlm/dlmdebug.h index 8c686d22f9c7..1f27c4812d1a 100644 --- a/fs/ocfs2/dlm/dlmdebug.h +++ b/fs/ocfs2/dlm/dlmdebug.h @@ -37,11 +37,6 @@ struct dlm_debug_ctxt { struct dentry *debug_purgelist_dentry; }; -struct debug_buffer { - int len; - char *buf; -}; - struct debug_lockres { int dl_len; char *dl_buf; diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c index cc2aaa96cfe5..7e38a072d720 100644 --- a/fs/ocfs2/dlm/dlmdomain.c +++ b/fs/ocfs2/dlm/dlmdomain.c @@ -460,8 +460,6 @@ redo_bucket: } cond_resched_lock(&dlm->spinlock); num += n; - mlog(0, "%s: touched %d lockreses in bucket %d " - "(tot=%d)\n", dlm->name, n, i, num); } spin_unlock(&dlm->spinlock); wake_up(&dlm->dlm_thread_wq); @@ -1661,8 +1659,8 @@ bail: static void dlm_unregister_domain_handlers(struct dlm_ctxt *dlm) { - o2hb_unregister_callback(NULL, &dlm->dlm_hb_up); - o2hb_unregister_callback(NULL, &dlm->dlm_hb_down); + o2hb_unregister_callback(dlm->name, &dlm->dlm_hb_up); + o2hb_unregister_callback(dlm->name, &dlm->dlm_hb_down); o2net_unregister_handler_list(&dlm->dlm_domain_handlers); } @@ -1674,13 +1672,13 @@ static int dlm_register_domain_handlers(struct dlm_ctxt *dlm) o2hb_setup_callback(&dlm->dlm_hb_down, O2HB_NODE_DOWN_CB, dlm_hb_node_down_cb, dlm, DLM_HB_NODE_DOWN_PRI); - status = o2hb_register_callback(NULL, &dlm->dlm_hb_down); + status = o2hb_register_callback(dlm->name, &dlm->dlm_hb_down); if (status) goto bail; o2hb_setup_callback(&dlm->dlm_hb_up, O2HB_NODE_UP_CB, dlm_hb_node_up_cb, dlm, DLM_HB_NODE_UP_PRI); - status = o2hb_register_callback(NULL, &dlm->dlm_hb_up); + status = o2hb_register_callback(dlm->name, &dlm->dlm_hb_up); if (status) goto bail; diff --git a/fs/ocfs2/dlm/dlmlock.c b/fs/ocfs2/dlm/dlmlock.c index 69cf369961c4..7009292aac5a 100644 --- a/fs/ocfs2/dlm/dlmlock.c +++ b/fs/ocfs2/dlm/dlmlock.c @@ -106,6 +106,9 @@ static int dlm_can_grant_new_lock(struct dlm_lock_resource *res, if (!dlm_lock_compatible(tmplock->ml.type, lock->ml.type)) return 0; + if (!dlm_lock_compatible(tmplock->ml.convert_type, + lock->ml.type)) + return 0; } return 1; diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c index f564b0e5f80d..59f0f6bdfc62 100644 --- a/fs/ocfs2/dlm/dlmmaster.c +++ b/fs/ocfs2/dlm/dlmmaster.c @@ -2346,7 +2346,8 @@ static void dlm_deref_lockres_worker(struct dlm_work_item *item, void *data) */ static int dlm_is_lockres_migrateable(struct dlm_ctxt *dlm, struct dlm_lock_resource *res, - int *numlocks) + int *numlocks, + int *hasrefs) { int ret; int i; @@ -2356,6 +2357,9 @@ static int dlm_is_lockres_migrateable(struct dlm_ctxt *dlm, assert_spin_locked(&res->spinlock); + *numlocks = 0; + *hasrefs = 0; + ret = -EINVAL; if (res->owner == DLM_LOCK_RES_OWNER_UNKNOWN) { mlog(0, "cannot migrate lockres with unknown owner!\n"); @@ -2386,7 +2390,13 @@ static int dlm_is_lockres_migrateable(struct dlm_ctxt *dlm, } *numlocks = count; - mlog(0, "migrateable lockres having %d locks\n", *numlocks); + + count = find_next_bit(res->refmap, O2NM_MAX_NODES, 0); + if (count < O2NM_MAX_NODES) + *hasrefs = 1; + + mlog(0, "%s: res %.*s, Migrateable, locks %d, refs %d\n", dlm->name, + res->lockname.len, res->lockname.name, *numlocks, *hasrefs); leave: return ret; @@ -2408,7 +2418,7 @@ static int dlm_migrate_lockres(struct dlm_ctxt *dlm, const char *name; unsigned int namelen; int mle_added = 0; - int numlocks; + int numlocks, hasrefs; int wake = 0; if (!dlm_grab(dlm)) @@ -2417,13 +2427,13 @@ static int dlm_migrate_lockres(struct dlm_ctxt *dlm, name = res->lockname.name; namelen = res->lockname.len; - mlog(0, "migrating %.*s to %u\n", namelen, name, target); + mlog(0, "%s: Migrating %.*s to %u\n", dlm->name, namelen, name, target); /* * ensure this lockres is a proper candidate for migration */ spin_lock(&res->spinlock); - ret = dlm_is_lockres_migrateable(dlm, res, &numlocks); + ret = dlm_is_lockres_migrateable(dlm, res, &numlocks, &hasrefs); if (ret < 0) { spin_unlock(&res->spinlock); goto leave; @@ -2431,10 +2441,8 @@ static int dlm_migrate_lockres(struct dlm_ctxt *dlm, spin_unlock(&res->spinlock); /* no work to do */ - if (numlocks == 0) { - mlog(0, "no locks were found on this lockres! done!\n"); + if (numlocks == 0 && !hasrefs) goto leave; - } /* * preallocate up front @@ -2459,14 +2467,14 @@ static int dlm_migrate_lockres(struct dlm_ctxt *dlm, * find a node to migrate the lockres to */ - mlog(0, "picking a migration node\n"); spin_lock(&dlm->spinlock); /* pick a new node */ if (!test_bit(target, dlm->domain_map) || target >= O2NM_MAX_NODES) { target = dlm_pick_migration_target(dlm, res); } - mlog(0, "node %u chosen for migration\n", target); + mlog(0, "%s: res %.*s, Node %u chosen for migration\n", dlm->name, + namelen, name, target); if (target >= O2NM_MAX_NODES || !test_bit(target, dlm->domain_map)) { @@ -2667,7 +2675,7 @@ int dlm_empty_lockres(struct dlm_ctxt *dlm, struct dlm_lock_resource *res) { int ret; int lock_dropped = 0; - int numlocks; + int numlocks, hasrefs; spin_lock(&res->spinlock); if (res->owner != dlm->node_num) { @@ -2681,8 +2689,8 @@ int dlm_empty_lockres(struct dlm_ctxt *dlm, struct dlm_lock_resource *res) } /* No need to migrate a lockres having no locks */ - ret = dlm_is_lockres_migrateable(dlm, res, &numlocks); - if (ret >= 0 && numlocks == 0) { + ret = dlm_is_lockres_migrateable(dlm, res, &numlocks, &hasrefs); + if (ret >= 0 && numlocks == 0 && !hasrefs) { spin_unlock(&res->spinlock); goto leave; } @@ -2915,6 +2923,12 @@ static u8 dlm_pick_migration_target(struct dlm_ctxt *dlm, } queue++; } + + nodenum = find_next_bit(res->refmap, O2NM_MAX_NODES, 0); + if (nodenum < O2NM_MAX_NODES) { + spin_unlock(&res->spinlock); + return nodenum; + } spin_unlock(&res->spinlock); mlog(0, "have not found a suitable target yet! checking domain map\n"); diff --git a/fs/ocfs2/dlm/dlmthread.c b/fs/ocfs2/dlm/dlmthread.c index 2211acf33d9b..1d6d1d22c471 100644 --- a/fs/ocfs2/dlm/dlmthread.c +++ b/fs/ocfs2/dlm/dlmthread.c @@ -122,15 +122,13 @@ int __dlm_lockres_unused(struct dlm_lock_resource *res) void __dlm_lockres_calc_usage(struct dlm_ctxt *dlm, struct dlm_lock_resource *res) { - mlog_entry("%.*s\n", res->lockname.len, res->lockname.name); - assert_spin_locked(&dlm->spinlock); assert_spin_locked(&res->spinlock); if (__dlm_lockres_unused(res)){ if (list_empty(&res->purge)) { - mlog(0, "putting lockres %.*s:%p onto purge list\n", - res->lockname.len, res->lockname.name, res); + mlog(0, "%s: Adding res %.*s to purge list\n", + dlm->name, res->lockname.len, res->lockname.name); res->last_used = jiffies; dlm_lockres_get(res); @@ -138,8 +136,8 @@ void __dlm_lockres_calc_usage(struct dlm_ctxt *dlm, dlm->purge_count++; } } else if (!list_empty(&res->purge)) { - mlog(0, "removing lockres %.*s:%p from purge list, owner=%u\n", - res->lockname.len, res->lockname.name, res, res->owner); + mlog(0, "%s: Removing res %.*s from purge list\n", + dlm->name, res->lockname.len, res->lockname.name); list_del_init(&res->purge); dlm_lockres_put(res); @@ -150,7 +148,6 @@ void __dlm_lockres_calc_usage(struct dlm_ctxt *dlm, void dlm_lockres_calc_usage(struct dlm_ctxt *dlm, struct dlm_lock_resource *res) { - mlog_entry("%.*s\n", res->lockname.len, res->lockname.name); spin_lock(&dlm->spinlock); spin_lock(&res->spinlock); @@ -171,9 +168,8 @@ static void dlm_purge_lockres(struct dlm_ctxt *dlm, master = (res->owner == dlm->node_num); - - mlog(0, "purging lockres %.*s, master = %d\n", res->lockname.len, - res->lockname.name, master); + mlog(0, "%s: Purging res %.*s, master %d\n", dlm->name, + res->lockname.len, res->lockname.name, master); if (!master) { res->state |= DLM_LOCK_RES_DROPPING_REF; @@ -189,27 +185,25 @@ static void dlm_purge_lockres(struct dlm_ctxt *dlm, /* clear our bit from the master's refmap, ignore errors */ ret = dlm_drop_lockres_ref(dlm, res); if (ret < 0) { - mlog_errno(ret); + mlog(ML_ERROR, "%s: deref %.*s failed %d\n", dlm->name, + res->lockname.len, res->lockname.name, ret); if (!dlm_is_host_down(ret)) BUG(); } - mlog(0, "%s:%.*s: dlm_deref_lockres returned %d\n", - dlm->name, res->lockname.len, res->lockname.name, ret); spin_lock(&dlm->spinlock); spin_lock(&res->spinlock); } if (!list_empty(&res->purge)) { - mlog(0, "removing lockres %.*s:%p from purgelist, " - "master = %d\n", res->lockname.len, res->lockname.name, - res, master); + mlog(0, "%s: Removing res %.*s from purgelist, master %d\n", + dlm->name, res->lockname.len, res->lockname.name, master); list_del_init(&res->purge); dlm_lockres_put(res); dlm->purge_count--; } if (!__dlm_lockres_unused(res)) { - mlog(ML_ERROR, "found lockres %s:%.*s: in use after deref\n", + mlog(ML_ERROR, "%s: res %.*s in use after deref\n", dlm->name, res->lockname.len, res->lockname.name); __dlm_print_one_lock_resource(res); BUG(); @@ -266,10 +260,10 @@ static void dlm_run_purge_list(struct dlm_ctxt *dlm, unused = __dlm_lockres_unused(lockres); if (!unused || (lockres->state & DLM_LOCK_RES_MIGRATING)) { - mlog(0, "lockres %s:%.*s: is in use or " - "being remastered, used %d, state %d\n", - dlm->name, lockres->lockname.len, - lockres->lockname.name, !unused, lockres->state); + mlog(0, "%s: res %.*s is in use or being remastered, " + "used %d, state %d\n", dlm->name, + lockres->lockname.len, lockres->lockname.name, + !unused, lockres->state); list_move_tail(&dlm->purge_list, &lockres->purge); spin_unlock(&lockres->spinlock); continue; @@ -296,15 +290,12 @@ static void dlm_shuffle_lists(struct dlm_ctxt *dlm, struct list_head *head; int can_grant = 1; - //mlog(0, "res->lockname.len=%d\n", res->lockname.len); - //mlog(0, "res->lockname.name=%p\n", res->lockname.name); - //mlog(0, "shuffle res %.*s\n", res->lockname.len, - // res->lockname.name); - - /* because this function is called with the lockres + /* + * Because this function is called with the lockres * spinlock, and because we know that it is not migrating/ * recovering/in-progress, it is fine to reserve asts and - * basts right before queueing them all throughout */ + * basts right before queueing them all throughout + */ assert_spin_locked(&dlm->ast_lock); assert_spin_locked(&res->spinlock); BUG_ON((res->state & (DLM_LOCK_RES_MIGRATING| @@ -314,13 +305,13 @@ static void dlm_shuffle_lists(struct dlm_ctxt *dlm, converting: if (list_empty(&res->converting)) goto blocked; - mlog(0, "res %.*s has locks on a convert queue\n", res->lockname.len, - res->lockname.name); + mlog(0, "%s: res %.*s has locks on the convert queue\n", dlm->name, + res->lockname.len, res->lockname.name); target = list_entry(res->converting.next, struct dlm_lock, list); if (target->ml.convert_type == LKM_IVMODE) { - mlog(ML_ERROR, "%.*s: converting a lock with no " - "convert_type!\n", res->lockname.len, res->lockname.name); + mlog(ML_ERROR, "%s: res %.*s converting lock to invalid mode\n", + dlm->name, res->lockname.len, res->lockname.name); BUG(); } head = &res->granted; @@ -365,9 +356,12 @@ converting: spin_lock(&target->spinlock); BUG_ON(target->ml.highest_blocked != LKM_IVMODE); - mlog(0, "calling ast for converting lock: %.*s, have: %d, " - "granting: %d, node: %u\n", res->lockname.len, - res->lockname.name, target->ml.type, + mlog(0, "%s: res %.*s, AST for Converting lock %u:%llu, type " + "%d => %d, node %u\n", dlm->name, res->lockname.len, + res->lockname.name, + dlm_get_lock_cookie_node(be64_to_cpu(target->ml.cookie)), + dlm_get_lock_cookie_seq(be64_to_cpu(target->ml.cookie)), + target->ml.type, target->ml.convert_type, target->ml.node); target->ml.type = target->ml.convert_type; @@ -428,11 +422,14 @@ blocked: spin_lock(&target->spinlock); BUG_ON(target->ml.highest_blocked != LKM_IVMODE); - mlog(0, "calling ast for blocked lock: %.*s, granting: %d, " - "node: %u\n", res->lockname.len, res->lockname.name, + mlog(0, "%s: res %.*s, AST for Blocked lock %u:%llu, type %d, " + "node %u\n", dlm->name, res->lockname.len, + res->lockname.name, + dlm_get_lock_cookie_node(be64_to_cpu(target->ml.cookie)), + dlm_get_lock_cookie_seq(be64_to_cpu(target->ml.cookie)), target->ml.type, target->ml.node); - // target->ml.type is already correct + /* target->ml.type is already correct */ list_move_tail(&target->list, &res->granted); BUG_ON(!target->lksb); @@ -453,7 +450,6 @@ leave: /* must have NO locks when calling this with res !=NULL * */ void dlm_kick_thread(struct dlm_ctxt *dlm, struct dlm_lock_resource *res) { - mlog_entry("dlm=%p, res=%p\n", dlm, res); if (res) { spin_lock(&dlm->spinlock); spin_lock(&res->spinlock); @@ -466,8 +462,6 @@ void dlm_kick_thread(struct dlm_ctxt *dlm, struct dlm_lock_resource *res) void __dlm_dirty_lockres(struct dlm_ctxt *dlm, struct dlm_lock_resource *res) { - mlog_entry("dlm=%p, res=%p\n", dlm, res); - assert_spin_locked(&dlm->spinlock); assert_spin_locked(&res->spinlock); @@ -484,13 +478,16 @@ void __dlm_dirty_lockres(struct dlm_ctxt *dlm, struct dlm_lock_resource *res) res->state |= DLM_LOCK_RES_DIRTY; } } + + mlog(0, "%s: res %.*s\n", dlm->name, res->lockname.len, + res->lockname.name); } /* Launch the NM thread for the mounted volume */ int dlm_launch_thread(struct dlm_ctxt *dlm) { - mlog(0, "starting dlm thread...\n"); + mlog(0, "Starting dlm_thread...\n"); dlm->dlm_thread_task = kthread_run(dlm_thread, dlm, "dlm_thread"); if (IS_ERR(dlm->dlm_thread_task)) { @@ -505,7 +502,7 @@ int dlm_launch_thread(struct dlm_ctxt *dlm) void dlm_complete_thread(struct dlm_ctxt *dlm) { if (dlm->dlm_thread_task) { - mlog(ML_KTHREAD, "waiting for dlm thread to exit\n"); + mlog(ML_KTHREAD, "Waiting for dlm thread to exit\n"); kthread_stop(dlm->dlm_thread_task); dlm->dlm_thread_task = NULL; } @@ -536,7 +533,12 @@ static void dlm_flush_asts(struct dlm_ctxt *dlm) /* get an extra ref on lock */ dlm_lock_get(lock); res = lock->lockres; - mlog(0, "delivering an ast for this lockres\n"); + mlog(0, "%s: res %.*s, Flush AST for lock %u:%llu, type %d, " + "node %u\n", dlm->name, res->lockname.len, + res->lockname.name, + dlm_get_lock_cookie_node(be64_to_cpu(lock->ml.cookie)), + dlm_get_lock_cookie_seq(be64_to_cpu(lock->ml.cookie)), + lock->ml.type, lock->ml.node); BUG_ON(!lock->ast_pending); @@ -557,9 +559,9 @@ static void dlm_flush_asts(struct dlm_ctxt *dlm) /* possible that another ast was queued while * we were delivering the last one */ if (!list_empty(&lock->ast_list)) { - mlog(0, "aha another ast got queued while " - "we were finishing the last one. will " - "keep the ast_pending flag set.\n"); + mlog(0, "%s: res %.*s, AST queued while flushing last " + "one\n", dlm->name, res->lockname.len, + res->lockname.name); } else lock->ast_pending = 0; @@ -590,8 +592,12 @@ static void dlm_flush_asts(struct dlm_ctxt *dlm) dlm_lock_put(lock); spin_unlock(&dlm->ast_lock); - mlog(0, "delivering a bast for this lockres " - "(blocked = %d\n", hi); + mlog(0, "%s: res %.*s, Flush BAST for lock %u:%llu, " + "blocked %d, node %u\n", + dlm->name, res->lockname.len, res->lockname.name, + dlm_get_lock_cookie_node(be64_to_cpu(lock->ml.cookie)), + dlm_get_lock_cookie_seq(be64_to_cpu(lock->ml.cookie)), + hi, lock->ml.node); if (lock->ml.node != dlm->node_num) { ret = dlm_send_proxy_bast(dlm, res, lock, hi); @@ -605,9 +611,9 @@ static void dlm_flush_asts(struct dlm_ctxt *dlm) /* possible that another bast was queued while * we were delivering the last one */ if (!list_empty(&lock->bast_list)) { - mlog(0, "aha another bast got queued while " - "we were finishing the last one. will " - "keep the bast_pending flag set.\n"); + mlog(0, "%s: res %.*s, BAST queued while flushing last " + "one\n", dlm->name, res->lockname.len, + res->lockname.name); } else lock->bast_pending = 0; @@ -675,11 +681,12 @@ static int dlm_thread(void *data) spin_lock(&res->spinlock); if (res->owner != dlm->node_num) { __dlm_print_one_lock_resource(res); - mlog(ML_ERROR, "inprog:%s, mig:%s, reco:%s, dirty:%s\n", - res->state & DLM_LOCK_RES_IN_PROGRESS ? "yes" : "no", - res->state & DLM_LOCK_RES_MIGRATING ? "yes" : "no", - res->state & DLM_LOCK_RES_RECOVERING ? "yes" : "no", - res->state & DLM_LOCK_RES_DIRTY ? "yes" : "no"); + mlog(ML_ERROR, "%s: inprog %d, mig %d, reco %d," + " dirty %d\n", dlm->name, + !!(res->state & DLM_LOCK_RES_IN_PROGRESS), + !!(res->state & DLM_LOCK_RES_MIGRATING), + !!(res->state & DLM_LOCK_RES_RECOVERING), + !!(res->state & DLM_LOCK_RES_DIRTY)); } BUG_ON(res->owner != dlm->node_num); @@ -693,8 +700,8 @@ static int dlm_thread(void *data) res->state &= ~DLM_LOCK_RES_DIRTY; spin_unlock(&res->spinlock); spin_unlock(&dlm->ast_lock); - mlog(0, "delaying list shuffling for in-" - "progress lockres %.*s, state=%d\n", + mlog(0, "%s: res %.*s, inprogress, delay list " + "shuffle, state %d\n", dlm->name, res->lockname.len, res->lockname.name, res->state); delay = 1; @@ -706,10 +713,6 @@ static int dlm_thread(void *data) * spinlock and do NOT have the dlm lock. * safe to reserve/queue asts and run the lists. */ - mlog(0, "calling dlm_shuffle_lists with dlm=%s, " - "res=%.*s\n", dlm->name, - res->lockname.len, res->lockname.name); - /* called while holding lockres lock */ dlm_shuffle_lists(dlm, res); res->state &= ~DLM_LOCK_RES_DIRTY; @@ -733,7 +736,8 @@ in_progress: /* unlikely, but we may need to give time to * other tasks */ if (!--n) { - mlog(0, "throttling dlm_thread\n"); + mlog(0, "%s: Throttling dlm thread\n", + dlm->name); break; } } |