/* SCTP kernel implementation
* (C) Copyright IBM Corp. 2001, 2004
*
* This file is part of the SCTP kernel implementation
*
* Support for memory object debugging. This allows one to monitor the
* object allocations/deallocations for types instrumented for this
* via the proc fs.
*
* This SCTP implementation is free software;
* you can redistribute it and/or modify it under the terms of
* the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This SCTP implementation is distributed in the hope that it
* will be useful, but WITHOUT ANY WARRANTY; without even the implied
* ************************
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU CC; see the file COPYING. If not, see
* .
*
* Please send any bug reports or fixes you make to the
* email address(es):
* lksctp developers
*
* Written or modified by:
* Jon Grimm
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include
#include
/*
* Global counters to count raw object allocation counts.
* To add new counters, choose a unique suffix for the variable
* name as the helper macros key off this suffix to make
* life easier for the programmer.
*/
SCTP_DBG_OBJCNT(sock);
SCTP_DBG_OBJCNT(ep);
SCTP_DBG_OBJCNT(transport);
SCTP_DBG_OBJCNT(assoc);
SCTP_DBG_OBJCNT(bind_addr);
SCTP_DBG_OBJCNT(bind_bucket);
SCTP_DBG_OBJCNT(chunk);
SCTP_DBG_OBJCNT(addr);
SCTP_DBG_OBJCNT(datamsg);
SCTP_DBG_OBJCNT(keys);
/* An array to make it easy to pretty print the debug information
* to the proc fs.
*/
static sctp_dbg_objcnt_entry_t sctp_dbg_objcnt[] = {
SCTP_DBG_OBJCNT_ENTRY(sock),
SCTP_DBG_OBJCNT_ENTRY(ep),
SCTP_DBG_OBJCNT_ENTRY(assoc),
SCTP_DBG_OBJCNT_ENTRY(transport),
SCTP_DBG_OBJCNT_ENTRY(chunk),
SCTP_DBG_OBJCNT_ENTRY(bind_addr),
SCTP_DBG_OBJCNT_ENTRY(bind_bucket),
SCTP_DBG_OBJCNT_ENTRY(addr),
SCTP_DBG_OBJCNT_ENTRY(datamsg),
SCTP_DBG_OBJCNT_ENTRY(keys),
};
/* 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.
*/
static int sctp_objcnt_seq_show(struct seq_file *seq, void *v)
{
int i;
i = (int)*(loff_t *)v;
seq_setwidth(seq, 127);
seq_printf(seq, "%s: %d", sctp_dbg_objcnt[i].label,
atomic_read(sctp_dbg_objcnt[i].counter));
seq_pad(seq, '\n');
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(struct net *net)
{
struct proc_dir_entry *ent;
ent = proc_create("sctp_dbg_objcnt", 0,
net->sctp.proc_net_sctp, &sctp_objcnt_ops);
if (!ent)
pr_warn("sctp_dbg_objcnt: Unable to create /proc entry.\n");
}
/* Cleanup the objcount entry in the proc filesystem. */
void sctp_dbg_objcnt_exit(struct net *net)
{
remove_proc_entry("sctp_dbg_objcnt", net->sctp.proc_net_sctp);
}
xt.git/log/sound/pci/emu10k1/emu10k1.c?id=2cbf5b4212b1595449548f189a8fb2df0b25a03f'>logplain
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| -rw-r--r-- | emu10k1_main.c | 69872 | logplain |
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