[DLM] dump more lock values
Add two more output fields (lkb_flags and rsb nodeid) to the new debugfs file that dumps one lock per line. Also, dump all locks instead of just mastered locks. Accordingly, use a suffix of _locks instead of _master. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
David Teigland
Steven Whitehouse
parent
35dcc52e3a
commit
ac90a25525
@ -27,7 +27,7 @@ static struct dentry *dlm_root;
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struct rsb_iter {
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int entry;
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int master;
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int locks;
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int header;
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struct dlm_ls *ls;
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struct list_head *next;
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@ -60,8 +60,8 @@ static char *print_lockmode(int mode)
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}
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}
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static void print_lock(struct seq_file *s, struct dlm_lkb *lkb,
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struct dlm_rsb *res)
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static void print_resource_lock(struct seq_file *s, struct dlm_lkb *lkb,
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struct dlm_rsb *res)
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{
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seq_printf(s, "%08x %s", lkb->lkb_id, print_lockmode(lkb->lkb_grmode));
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@ -134,15 +134,15 @@ static int print_resource(struct dlm_rsb *res, struct seq_file *s)
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/* Print the locks attached to this resource */
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seq_printf(s, "Granted Queue\n");
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list_for_each_entry(lkb, &res->res_grantqueue, lkb_statequeue)
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print_lock(s, lkb, res);
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print_resource_lock(s, lkb, res);
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seq_printf(s, "Conversion Queue\n");
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list_for_each_entry(lkb, &res->res_convertqueue, lkb_statequeue)
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print_lock(s, lkb, res);
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print_resource_lock(s, lkb, res);
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seq_printf(s, "Waiting Queue\n");
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list_for_each_entry(lkb, &res->res_waitqueue, lkb_statequeue)
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print_lock(s, lkb, res);
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print_resource_lock(s, lkb, res);
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if (list_empty(&res->res_lookup))
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goto out;
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@ -160,8 +160,7 @@ static int print_resource(struct dlm_rsb *res, struct seq_file *s)
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return 0;
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}
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static void print_master_lock(struct seq_file *s, struct dlm_lkb *lkb,
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struct dlm_rsb *r)
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static void print_lock(struct seq_file *s, struct dlm_lkb *lkb, struct dlm_rsb *r)
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{
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struct dlm_user_args *ua;
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unsigned int waiting = 0;
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@ -176,37 +175,40 @@ static void print_master_lock(struct seq_file *s, struct dlm_lkb *lkb,
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if (lkb->lkb_timestamp)
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waiting = jiffies_to_msecs(jiffies - lkb->lkb_timestamp);
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/* id nodeid remid pid xid flags sts grmode rqmode time_ms len name */
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/* id nodeid remid pid xid exflags flags sts grmode rqmode time_ms
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r_nodeid r_len r_name */
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seq_printf(s, "%x %d %x %u %llu %x %d %d %d %u %d \"%s\"\n",
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seq_printf(s, "%x %d %x %u %llu %x %x %d %d %d %u %u %d \"%s\"\n",
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lkb->lkb_id,
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lkb->lkb_nodeid,
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lkb->lkb_remid,
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lkb->lkb_ownpid,
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(unsigned long long)xid,
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lkb->lkb_exflags,
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lkb->lkb_flags,
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lkb->lkb_status,
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lkb->lkb_grmode,
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lkb->lkb_rqmode,
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waiting,
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r->res_nodeid,
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r->res_length,
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r->res_name);
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}
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static int print_master_resource(struct dlm_rsb *r, struct seq_file *s)
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static int print_locks(struct dlm_rsb *r, struct seq_file *s)
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{
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struct dlm_lkb *lkb;
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lock_rsb(r);
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list_for_each_entry(lkb, &r->res_grantqueue, lkb_statequeue)
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print_master_lock(s, lkb, r);
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print_lock(s, lkb, r);
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list_for_each_entry(lkb, &r->res_convertqueue, lkb_statequeue)
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print_master_lock(s, lkb, r);
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print_lock(s, lkb, r);
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list_for_each_entry(lkb, &r->res_waitqueue, lkb_statequeue)
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print_master_lock(s, lkb, r);
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print_lock(s, lkb, r);
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unlock_rsb(r);
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return 0;
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@ -325,14 +327,14 @@ static int rsb_seq_show(struct seq_file *file, void *iter_ptr)
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{
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struct rsb_iter *ri = iter_ptr;
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if (ri->master) {
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if (ri->locks) {
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if (ri->header) {
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seq_printf(file, "id nodeid remid pid xid flags sts "
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"grmode rqmode time_ms len name\n");
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seq_printf(file, "id nodeid remid pid xid exflags flags "
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"sts grmode rqmode time_ms r_nodeid "
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"r_len r_name\n");
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ri->header = 0;
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}
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if (is_master(ri->rsb))
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print_master_resource(ri->rsb, file);
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print_locks(ri->rsb, file);
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} else {
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print_resource(ri->rsb, file);
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}
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@ -371,10 +373,10 @@ static const struct file_operations rsb_fops = {
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};
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/*
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* Dump master lock state
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* Dump state in compact per-lock listing
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*/
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static struct rsb_iter *master_iter_init(struct dlm_ls *ls, loff_t *pos)
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static struct rsb_iter *locks_iter_init(struct dlm_ls *ls, loff_t *pos)
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{
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struct rsb_iter *ri;
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@ -385,7 +387,7 @@ static struct rsb_iter *master_iter_init(struct dlm_ls *ls, loff_t *pos)
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ri->ls = ls;
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ri->entry = 0;
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ri->next = NULL;
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ri->master = 1;
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ri->locks = 1;
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if (*pos == 0)
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ri->header = 1;
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@ -398,12 +400,12 @@ static struct rsb_iter *master_iter_init(struct dlm_ls *ls, loff_t *pos)
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return ri;
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}
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static void *master_seq_start(struct seq_file *file, loff_t *pos)
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static void *locks_seq_start(struct seq_file *file, loff_t *pos)
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{
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struct rsb_iter *ri;
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loff_t n = *pos;
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ri = master_iter_init(file->private, pos);
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ri = locks_iter_init(file->private, pos);
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if (!ri)
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return NULL;
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@ -417,19 +419,19 @@ static void *master_seq_start(struct seq_file *file, loff_t *pos)
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return ri;
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}
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static struct seq_operations master_seq_ops = {
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.start = master_seq_start,
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static struct seq_operations locks_seq_ops = {
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.start = locks_seq_start,
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.next = rsb_seq_next,
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.stop = rsb_seq_stop,
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.show = rsb_seq_show,
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};
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static int master_open(struct inode *inode, struct file *file)
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static int locks_open(struct inode *inode, struct file *file)
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{
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struct seq_file *seq;
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int ret;
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ret = seq_open(file, &master_seq_ops);
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ret = seq_open(file, &locks_seq_ops);
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if (ret)
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return ret;
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@ -439,9 +441,9 @@ static int master_open(struct inode *inode, struct file *file)
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return 0;
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}
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static const struct file_operations master_fops = {
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static const struct file_operations locks_fops = {
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.owner = THIS_MODULE,
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.open = master_open,
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.open = locks_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = seq_release
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@ -515,14 +517,14 @@ int dlm_create_debug_file(struct dlm_ls *ls)
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}
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memset(name, 0, sizeof(name));
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snprintf(name, DLM_LOCKSPACE_LEN+8, "%s_master", ls->ls_name);
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snprintf(name, DLM_LOCKSPACE_LEN+8, "%s_locks", ls->ls_name);
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ls->ls_debug_master_dentry = debugfs_create_file(name,
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S_IFREG | S_IRUGO,
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dlm_root,
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ls,
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&master_fops);
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if (!ls->ls_debug_master_dentry) {
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ls->ls_debug_locks_dentry = debugfs_create_file(name,
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S_IFREG | S_IRUGO,
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dlm_root,
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ls,
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&locks_fops);
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if (!ls->ls_debug_locks_dentry) {
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debugfs_remove(ls->ls_debug_waiters_dentry);
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debugfs_remove(ls->ls_debug_rsb_dentry);
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return -ENOMEM;
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@ -537,8 +539,8 @@ void dlm_delete_debug_file(struct dlm_ls *ls)
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debugfs_remove(ls->ls_debug_rsb_dentry);
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if (ls->ls_debug_waiters_dentry)
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debugfs_remove(ls->ls_debug_waiters_dentry);
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if (ls->ls_debug_master_dentry)
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debugfs_remove(ls->ls_debug_master_dentry);
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if (ls->ls_debug_locks_dentry)
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debugfs_remove(ls->ls_debug_locks_dentry);
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}
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int dlm_register_debugfs(void)
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@ -471,7 +471,7 @@ struct dlm_ls {
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struct dentry *ls_debug_rsb_dentry; /* debugfs */
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struct dentry *ls_debug_waiters_dentry; /* debugfs */
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struct dentry *ls_debug_master_dentry; /* debugfs */
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struct dentry *ls_debug_locks_dentry; /* debugfs */
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wait_queue_head_t ls_uevent_wait; /* user part of join/leave */
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int ls_uevent_result;
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