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[SCTP]: Convert sctp_dbg_objcnt to seq files.

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This makes the code use a good proc API and the text ~50 bytes shorter.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Emelyanov 2008-02-09 23:24:58 -08:00 committed by David S. Miller
parent 3f5340a67e
commit 8ff65b4603
1 changed files with 44 additions and 41 deletions
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85
net/sctp/objcnt.c
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@ -80,61 +80,64 @@ static sctp_dbg_objcnt_entry_t sctp_dbg_objcnt[] = {
/* Callback from procfs to read out objcount information.
* Walk through the entries in the sctp_dbg_objcnt array, dumping
* the raw object counts for each monitored type.
*
* This code was modified from similar code in route.c
*/
static int sctp_dbg_objcnt_read(char *buffer, char **start, off_t offset,
int length, int *eof, void *data)
static int sctp_objcnt_seq_show(struct seq_file *seq, void *v)
{
int len = 0;
off_t pos = 0;
int entries;
int i;
char temp[128];
/* How many entries? */
entries = ARRAY_SIZE(sctp_dbg_objcnt);
/* Walk the entries and print out the debug information
* for proc fs.
*/
for (i = 0; i < entries; i++) {
pos += 128;
/* Skip ahead. */
if (pos <= offset) {
len = 0;
continue;
}
/* Print out each entry. */
sprintf(temp, "%s: %d",
sctp_dbg_objcnt[i].label,
atomic_read(sctp_dbg_objcnt[i].counter));
sprintf(buffer + len, "%-127s\n", temp);
len += 128;
if (pos >= offset+length)
goto done;
}
done:
*start = buffer + len - (pos - offset);
len = pos - offset;
if (len > length)
len = length;
return len;
i = (int)*(loff_t *)v;
sprintf(temp, "%s: %d", sctp_dbg_objcnt[i].label,
atomic_read(sctp_dbg_objcnt[i].counter));
seq_printf(seq, "%-127s\n", temp);
return 0;
}
static void *sctp_objcnt_seq_start(struct seq_file *seq, loff_t *pos)
{
return (*pos >= ARRAY_SIZE(sctp_dbg_objcnt)) ? NULL : (void *)pos;
}
static void sctp_objcnt_seq_stop(struct seq_file *seq, void *v)
{
}
static void * sctp_objcnt_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
++*pos;
return (*pos >= ARRAY_SIZE(sctp_dbg_objcnt)) ? NULL : (void *)pos;
}
static const struct seq_operations sctp_objcnt_seq_ops = {
.start = sctp_objcnt_seq_start,
.next = sctp_objcnt_seq_next,
.stop = sctp_objcnt_seq_stop,
.show = sctp_objcnt_seq_show,
};
static int sctp_objcnt_seq_open(struct inode *inode, struct file *file)
{
return seq_open(file, &sctp_objcnt_seq_ops);
}
static const struct file_operations sctp_objcnt_ops = {
.open = sctp_objcnt_seq_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
};
/* Initialize the objcount in the proc filesystem. */
void sctp_dbg_objcnt_init(void)
{
struct proc_dir_entry *ent;
ent = create_proc_read_entry("sctp_dbg_objcnt", 0, proc_net_sctp,
sctp_dbg_objcnt_read, NULL);
ent = create_proc_entry("sctp_dbg_objcnt", 0, proc_net_sctp);
if (!ent)
printk(KERN_WARNING
"sctp_dbg_objcnt: Unable to create /proc entry.\n");
else
ent->proc_fops = &sctp_objcnt_ops;
}
/* Cleanup the objcount entry in the proc filesystem. */