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ocfs2/dlm: Fix lockname in lockres print function
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__dlm_print_one_lock_resource was printing lockname incorrectly.
Also, we now use printk directly instead of mlog as the latter prints
the line context which is not useful for this print.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
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Sunil Mushran authored and Mark Fasheh committed Apr 18, 2008
1 parent e5a0334 commit c834cdb
Showing 1 changed file with 51 additions and 75 deletions.
126 changes: 51 additions & 75 deletions fs/ocfs2/dlm/dlmdebug.c
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@
*
* debug functionality for the dlm
*
* Copyright (C) 2004 Oracle. All rights reserved.
* Copyright (C) 2004, 2008 Oracle. All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
Expand Down Expand Up @@ -44,11 +44,10 @@
#define MLOG_MASK_PREFIX ML_DLM
#include "cluster/masklog.h"

int stringify_lockname(const char *lockname, int locklen, char *buf, int len);

void dlm_print_one_lock_resource(struct dlm_lock_resource *res)
{
mlog(ML_NOTICE, "lockres: %.*s, owner=%u, state=%u\n",
res->lockname.len, res->lockname.name,
res->owner, res->state);
spin_lock(&res->spinlock);
__dlm_print_one_lock_resource(res);
spin_unlock(&res->spinlock);
Expand All @@ -59,75 +58,78 @@ static void dlm_print_lockres_refmap(struct dlm_lock_resource *res)
int bit;
assert_spin_locked(&res->spinlock);

mlog(ML_NOTICE, " refmap nodes: [ ");
printk(KERN_NOTICE " refmap nodes: [ ");
bit = 0;
while (1) {
bit = find_next_bit(res->refmap, O2NM_MAX_NODES, bit);
if (bit >= O2NM_MAX_NODES)
break;
printk("%u ", bit);
printk(KERN_NOTICE "%u ", bit);
bit++;
}
printk("], inflight=%u\n", res->inflight_locks);
printk(KERN_NOTICE "], inflight=%u\n", res->inflight_locks);
}

static void __dlm_print_lock(struct dlm_lock *lock)
{
spin_lock(&lock->spinlock);

printk(KERN_NOTICE " type=%d, conv=%d, node=%u, cookie=%u:%llu, "
"ref=%u, ast=(empty=%c,pend=%c), bast=(empty=%c,pend=%c), "
"pending=(conv=%c,lock=%c,cancel=%c,unlock=%c)\n",
lock->ml.type, lock->ml.convert_type, lock->ml.node,
dlm_get_lock_cookie_node(be64_to_cpu(lock->ml.cookie)),
dlm_get_lock_cookie_seq(be64_to_cpu(lock->ml.cookie)),
atomic_read(&lock->lock_refs.refcount),
(list_empty(&lock->ast_list) ? 'y' : 'n'),
(lock->ast_pending ? 'y' : 'n'),
(list_empty(&lock->bast_list) ? 'y' : 'n'),
(lock->bast_pending ? 'y' : 'n'),
(lock->convert_pending ? 'y' : 'n'),
(lock->lock_pending ? 'y' : 'n'),
(lock->cancel_pending ? 'y' : 'n'),
(lock->unlock_pending ? 'y' : 'n'));

spin_unlock(&lock->spinlock);
}

void __dlm_print_one_lock_resource(struct dlm_lock_resource *res)
{
struct list_head *iter2;
struct dlm_lock *lock;
char buf[DLM_LOCKID_NAME_MAX];

assert_spin_locked(&res->spinlock);

mlog(ML_NOTICE, "lockres: %.*s, owner=%u, state=%u\n",
res->lockname.len, res->lockname.name,
res->owner, res->state);
mlog(ML_NOTICE, " last used: %lu, on purge list: %s\n",
res->last_used, list_empty(&res->purge) ? "no" : "yes");
stringify_lockname(res->lockname.name, res->lockname.len,
buf, sizeof(buf) - 1);
printk(KERN_NOTICE "lockres: %s, owner=%u, state=%u\n",
buf, res->owner, res->state);
printk(KERN_NOTICE " last used: %lu, refcnt: %u, on purge list: %s\n",
res->last_used, atomic_read(&res->refs.refcount),
list_empty(&res->purge) ? "no" : "yes");
printk(KERN_NOTICE " on dirty list: %s, on reco list: %s, "
"migrating pending: %s\n",
list_empty(&res->dirty) ? "no" : "yes",
list_empty(&res->recovering) ? "no" : "yes",
res->migration_pending ? "yes" : "no");
printk(KERN_NOTICE " inflight locks: %d, asts reserved: %d\n",
res->inflight_locks, atomic_read(&res->asts_reserved));
dlm_print_lockres_refmap(res);
mlog(ML_NOTICE, " granted queue: \n");
printk(KERN_NOTICE " granted queue:\n");
list_for_each(iter2, &res->granted) {
lock = list_entry(iter2, struct dlm_lock, list);
spin_lock(&lock->spinlock);
mlog(ML_NOTICE, " type=%d, conv=%d, node=%u, "
"cookie=%u:%llu, ast=(empty=%c,pend=%c), bast=(empty=%c,pend=%c)\n",
lock->ml.type, lock->ml.convert_type, lock->ml.node,
dlm_get_lock_cookie_node(be64_to_cpu(lock->ml.cookie)),
dlm_get_lock_cookie_seq(be64_to_cpu(lock->ml.cookie)),
list_empty(&lock->ast_list) ? 'y' : 'n',
lock->ast_pending ? 'y' : 'n',
list_empty(&lock->bast_list) ? 'y' : 'n',
lock->bast_pending ? 'y' : 'n');
spin_unlock(&lock->spinlock);
__dlm_print_lock(lock);
}
mlog(ML_NOTICE, " converting queue: \n");
printk(KERN_NOTICE " converting queue:\n");
list_for_each(iter2, &res->converting) {
lock = list_entry(iter2, struct dlm_lock, list);
spin_lock(&lock->spinlock);
mlog(ML_NOTICE, " type=%d, conv=%d, node=%u, "
"cookie=%u:%llu, ast=(empty=%c,pend=%c), bast=(empty=%c,pend=%c)\n",
lock->ml.type, lock->ml.convert_type, lock->ml.node,
dlm_get_lock_cookie_node(be64_to_cpu(lock->ml.cookie)),
dlm_get_lock_cookie_seq(be64_to_cpu(lock->ml.cookie)),
list_empty(&lock->ast_list) ? 'y' : 'n',
lock->ast_pending ? 'y' : 'n',
list_empty(&lock->bast_list) ? 'y' : 'n',
lock->bast_pending ? 'y' : 'n');
spin_unlock(&lock->spinlock);
__dlm_print_lock(lock);
}
mlog(ML_NOTICE, " blocked queue: \n");
printk(KERN_NOTICE " blocked queue:\n");
list_for_each(iter2, &res->blocked) {
lock = list_entry(iter2, struct dlm_lock, list);
spin_lock(&lock->spinlock);
mlog(ML_NOTICE, " type=%d, conv=%d, node=%u, "
"cookie=%u:%llu, ast=(empty=%c,pend=%c), bast=(empty=%c,pend=%c)\n",
lock->ml.type, lock->ml.convert_type, lock->ml.node,
dlm_get_lock_cookie_node(be64_to_cpu(lock->ml.cookie)),
dlm_get_lock_cookie_seq(be64_to_cpu(lock->ml.cookie)),
list_empty(&lock->ast_list) ? 'y' : 'n',
lock->ast_pending ? 'y' : 'n',
list_empty(&lock->bast_list) ? 'y' : 'n',
lock->bast_pending ? 'y' : 'n');
spin_unlock(&lock->spinlock);
__dlm_print_lock(lock);
}
}

Expand All @@ -137,31 +139,6 @@ void dlm_print_one_lock(struct dlm_lock *lockid)
}
EXPORT_SYMBOL_GPL(dlm_print_one_lock);

#if 0
void dlm_dump_lock_resources(struct dlm_ctxt *dlm)
{
struct dlm_lock_resource *res;
struct hlist_node *iter;
struct hlist_head *bucket;
int i;

mlog(ML_NOTICE, "struct dlm_ctxt: %s, node=%u, key=%u\n",
dlm->name, dlm->node_num, dlm->key);
if (!dlm || !dlm->name) {
mlog(ML_ERROR, "dlm=%p\n", dlm);
return;
}

spin_lock(&dlm->spinlock);
for (i=0; i<DLM_HASH_BUCKETS; i++) {
bucket = dlm_lockres_hash(dlm, i);
hlist_for_each_entry(res, iter, bucket, hash_node)
dlm_print_one_lock_resource(res);
}
spin_unlock(&dlm->spinlock);
}
#endif /* 0 */

static const char *dlm_errnames[] = {
[DLM_NORMAL] = "DLM_NORMAL",
[DLM_GRANTED] = "DLM_GRANTED",
Expand Down Expand Up @@ -274,8 +251,7 @@ EXPORT_SYMBOL_GPL(dlm_errname);
*
* For more on lockname formats, please refer to dlmglue.c and ocfs2_lockid.h.
*/
static int stringify_lockname(const char *lockname, int locklen,
char *buf, int len)
int stringify_lockname(const char *lockname, int locklen, char *buf, int len)
{
int out = 0;
__be64 inode_blkno_be;
Expand Down

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