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>
		
			
				
	
	
		
			82 lines
		
	
	
	
		
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			82 lines
		
	
	
	
		
			1.8 KiB
			
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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 * sysctl_net_atalk.c: sysctl interface to net AppleTalk subsystem.
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 *
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 * Begun April 1, 1996, Mike Shaver.
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 * Added /proc/sys/net/atalk directory entry (empty =) ). [MS]
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 * Dynamic registration, added aarp entries. (5/30/97 Chris Horn)
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 */
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#include <linux/sysctl.h>
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#include <net/sock.h>
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#include <linux/atalk.h>
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static struct ctl_table atalk_table[] = {
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	{
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		.ctl_name	= NET_ATALK_AARP_EXPIRY_TIME,
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		.procname	= "aarp-expiry-time",
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		.data		= &sysctl_aarp_expiry_time,
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		.maxlen		= sizeof(int),
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		.mode		= 0644,
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		.proc_handler	= &proc_dointvec_jiffies,
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		.strategy	= &sysctl_jiffies,
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	},
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	{
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		.ctl_name	= NET_ATALK_AARP_TICK_TIME,
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		.procname	= "aarp-tick-time",
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		.data		= &sysctl_aarp_tick_time,
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		.maxlen		= sizeof(int),
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		.mode		= 0644,
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		.proc_handler	= &proc_dointvec_jiffies,
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		.strategy	= &sysctl_jiffies,
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	},
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	{
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		.ctl_name	= NET_ATALK_AARP_RETRANSMIT_LIMIT,
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		.procname	= "aarp-retransmit-limit",
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		.data		= &sysctl_aarp_retransmit_limit,
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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	= NET_ATALK_AARP_RESOLVE_TIME,
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		.procname	= "aarp-resolve-time",
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		.data		= &sysctl_aarp_resolve_time,
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		.maxlen		= sizeof(int),
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		.mode		= 0644,
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		.proc_handler	= &proc_dointvec_jiffies,
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		.strategy	= &sysctl_jiffies,
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	},
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	{ 0 },
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};
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static struct ctl_table atalk_dir_table[] = {
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	{
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		.ctl_name	= NET_ATALK,
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		.procname	= "appletalk",
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		.mode		= 0555,
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		.child		= atalk_table,
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	},
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	{ 0 },
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};
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static struct ctl_table atalk_root_table[] = {
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	{
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		.ctl_name	= CTL_NET,
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		.procname	= "net",
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		.mode		= 0555,
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		.child		= atalk_dir_table,
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	},
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	{ 0 },
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};
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static struct ctl_table_header *atalk_table_header;
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void atalk_register_sysctl(void)
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{
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	atalk_table_header = register_sysctl_table(atalk_root_table);
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}
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void atalk_unregister_sysctl(void)
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{
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	unregister_sysctl_table(atalk_table_header);
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}
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