linux/net/dccp/sysctl.c

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/*
* net/dccp/sysctl.c
*
* An implementation of the DCCP protocol
* Arnaldo Carvalho de Melo <acme@mandriva.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License v2
* as published by the Free Software Foundation.
*/
#include <linux/mm.h>
#include <linux/sysctl.h>
#include "dccp.h"
#include "feat.h"
#ifndef CONFIG_SYSCTL
#error This file should not be compiled without CONFIG_SYSCTL defined
#endif
static struct ctl_table dccp_default_table[] = {
{
.procname = "seq_window",
.data = &sysctl_dccp_feat_sequence_window,
.maxlen = sizeof(sysctl_dccp_feat_sequence_window),
.mode = 0644,
.proc_handler = proc_dointvec,
},
{
.procname = "rx_ccid",
.data = &sysctl_dccp_feat_rx_ccid,
.maxlen = sizeof(sysctl_dccp_feat_rx_ccid),
.mode = 0644,
.proc_handler = proc_dointvec,
},
{
.procname = "tx_ccid",
.data = &sysctl_dccp_feat_tx_ccid,
.maxlen = sizeof(sysctl_dccp_feat_tx_ccid),
.mode = 0644,
.proc_handler = proc_dointvec,
},
{
.procname = "ack_ratio",
.data = &sysctl_dccp_feat_ack_ratio,
.maxlen = sizeof(sysctl_dccp_feat_ack_ratio),
.mode = 0644,
.proc_handler = proc_dointvec,
},
{
.procname = "send_ackvec",
.data = &sysctl_dccp_feat_send_ack_vector,
.maxlen = sizeof(sysctl_dccp_feat_send_ack_vector),
.mode = 0644,
.proc_handler = proc_dointvec,
},
{
.procname = "send_ndp",
.data = &sysctl_dccp_feat_send_ndp_count,
.maxlen = sizeof(sysctl_dccp_feat_send_ndp_count),
.mode = 0644,
.proc_handler = proc_dointvec,
},
{
.procname = "request_retries",
.data = &sysctl_dccp_request_retries,
.maxlen = sizeof(sysctl_dccp_request_retries),
.mode = 0644,
.proc_handler = proc_dointvec,
},
{
.procname = "retries1",
.data = &sysctl_dccp_retries1,
.maxlen = sizeof(sysctl_dccp_retries1),
.mode = 0644,
.proc_handler = proc_dointvec,
},
{
.procname = "retries2",
.data = &sysctl_dccp_retries2,
.maxlen = sizeof(sysctl_dccp_retries2),
.mode = 0644,
.proc_handler = proc_dointvec,
},
{
.procname = "tx_qlen",
.data = &sysctl_dccp_tx_qlen,
.maxlen = sizeof(sysctl_dccp_tx_qlen),
.mode = 0644,
.proc_handler = proc_dointvec,
},
{ .ctl_name = 0, }
};
static struct ctl_table dccp_table[] = {
{
.ctl_name = NET_DCCP_DEFAULT,
.procname = "default",
.mode = 0555,
.child = dccp_default_table,
},
{ .ctl_name = 0, },
};
static struct ctl_table dccp_dir_table[] = {
{
.ctl_name = NET_DCCP,
.procname = "dccp",
.mode = 0555,
.child = dccp_table,
},
{ .ctl_name = 0, },
};
static struct ctl_table dccp_root_table[] = {
{
.ctl_name = CTL_NET,
.procname = "net",
.mode = 0555,
.child = dccp_dir_table,
},
{ .ctl_name = 0, },
};
static struct ctl_table_header *dccp_table_header;
int __init dccp_sysctl_init(void)
{
[PATCH] sysctl: remove insert_at_head from register_sysctl The semantic effect of insert_at_head is that it would allow new registered sysctl entries to override existing sysctl entries of the same name. Which is pain for caching and the proc interface never implemented. I have done an audit and discovered that none of the current users of register_sysctl care as (excpet for directories) they do not register duplicate sysctl entries. So this patch simply removes the support for overriding existing entries in the sys_sysctl interface since no one uses it or cares and it makes future enhancments harder. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: David Howells <dhowells@redhat.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Andi Kleen <ak@muc.de> Cc: Jens Axboe <axboe@kernel.dk> Cc: Corey Minyard <minyard@acm.org> Cc: Neil Brown <neilb@suse.de> Cc: "John W. Linville" <linville@tuxdriver.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Jan Kara <jack@ucw.cz> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: Mark Fasheh <mark.fasheh@oracle.com> Cc: David Chinner <dgc@sgi.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Patrick McHardy <kaber@trash.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-14 08:34:09 +00:00
dccp_table_header = register_sysctl_table(dccp_root_table);
return dccp_table_header != NULL ? 0 : -ENOMEM;
}
void dccp_sysctl_exit(void)
{
if (dccp_table_header != NULL) {
unregister_sysctl_table(dccp_table_header);
dccp_table_header = NULL;
}
}