0b4d414714
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>
121 lines
2.6 KiB
C
121 lines
2.6 KiB
C
/* sysctl.c: Rx RPC control
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*
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* Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#include <linux/sched.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/sysctl.h>
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#include <rxrpc/types.h>
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#include <rxrpc/rxrpc.h>
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#include <asm/errno.h>
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#include "internal.h"
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int rxrpc_ktrace;
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int rxrpc_kdebug;
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int rxrpc_kproto;
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int rxrpc_knet;
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#ifdef CONFIG_SYSCTL
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static struct ctl_table_header *rxrpc_sysctl = NULL;
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static ctl_table rxrpc_sysctl_table[] = {
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{
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.ctl_name = 1,
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.procname = "kdebug",
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.data = &rxrpc_kdebug,
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = &proc_dointvec
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},
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{
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.ctl_name = 2,
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.procname = "ktrace",
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.data = &rxrpc_ktrace,
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = &proc_dointvec
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},
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{
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.ctl_name = 3,
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.procname = "kproto",
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.data = &rxrpc_kproto,
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = &proc_dointvec
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},
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{
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.ctl_name = 4,
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.procname = "knet",
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.data = &rxrpc_knet,
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = &proc_dointvec
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},
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{
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.ctl_name = 5,
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.procname = "peertimo",
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.data = &rxrpc_peer_timeout,
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.maxlen = sizeof(unsigned long),
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.mode = 0644,
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.proc_handler = &proc_doulongvec_minmax
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},
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{
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.ctl_name = 6,
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.procname = "conntimo",
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.data = &rxrpc_conn_timeout,
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.maxlen = sizeof(unsigned long),
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.mode = 0644,
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.proc_handler = &proc_doulongvec_minmax
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},
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{ .ctl_name = 0 }
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};
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static ctl_table rxrpc_dir_sysctl_table[] = {
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{
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.ctl_name = 1,
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.procname = "rxrpc",
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.maxlen = 0,
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.mode = 0555,
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.child = rxrpc_sysctl_table
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},
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{ .ctl_name = 0 }
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};
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#endif /* CONFIG_SYSCTL */
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/*****************************************************************************/
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/*
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* initialise the sysctl stuff for Rx RPC
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*/
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int rxrpc_sysctl_init(void)
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{
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#ifdef CONFIG_SYSCTL
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rxrpc_sysctl = register_sysctl_table(rxrpc_dir_sysctl_table);
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if (!rxrpc_sysctl)
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return -ENOMEM;
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#endif /* CONFIG_SYSCTL */
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return 0;
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} /* end rxrpc_sysctl_init() */
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/*****************************************************************************/
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/*
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* clean up the sysctl stuff for Rx RPC
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*/
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void rxrpc_sysctl_cleanup(void)
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{
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#ifdef CONFIG_SYSCTL
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if (rxrpc_sysctl) {
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unregister_sysctl_table(rxrpc_sysctl);
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rxrpc_sysctl = NULL;
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}
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#endif /* CONFIG_SYSCTL */
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} /* end rxrpc_sysctl_cleanup() */
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