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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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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>
122 lines
2.4 KiB
C
122 lines
2.4 KiB
C
/*
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* sysctl_net_ipv6.c: sysctl interface to net IPV6 subsystem.
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*
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* Changes:
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* YOSHIFUJI Hideaki @USAGI: added icmp sysctl table.
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*/
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#include <linux/mm.h>
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#include <linux/sysctl.h>
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#include <linux/in6.h>
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#include <linux/ipv6.h>
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#include <net/ndisc.h>
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#include <net/ipv6.h>
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#include <net/addrconf.h>
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#ifdef CONFIG_SYSCTL
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static ctl_table ipv6_table[] = {
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{
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.ctl_name = NET_IPV6_ROUTE,
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.procname = "route",
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.maxlen = 0,
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.mode = 0555,
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.child = ipv6_route_table
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},
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{
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.ctl_name = NET_IPV6_ICMP,
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.procname = "icmp",
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.maxlen = 0,
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.mode = 0555,
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.child = ipv6_icmp_table
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},
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{
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.ctl_name = NET_IPV6_BINDV6ONLY,
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.procname = "bindv6only",
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.data = &sysctl_ipv6_bindv6only,
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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_IPV6_IP6FRAG_HIGH_THRESH,
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.procname = "ip6frag_high_thresh",
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.data = &sysctl_ip6frag_high_thresh,
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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_IPV6_IP6FRAG_LOW_THRESH,
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.procname = "ip6frag_low_thresh",
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.data = &sysctl_ip6frag_low_thresh,
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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_IPV6_IP6FRAG_TIME,
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.procname = "ip6frag_time",
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.data = &sysctl_ip6frag_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_IPV6_IP6FRAG_SECRET_INTERVAL,
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.procname = "ip6frag_secret_interval",
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.data = &sysctl_ip6frag_secret_interval,
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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_IPV6_MLD_MAX_MSF,
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.procname = "mld_max_msf",
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.data = &sysctl_mld_max_msf,
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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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{ .ctl_name = 0 }
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};
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static struct ctl_table_header *ipv6_sysctl_header;
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static ctl_table ipv6_net_table[] = {
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{
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.ctl_name = NET_IPV6,
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.procname = "ipv6",
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.mode = 0555,
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.child = ipv6_table
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},
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{ .ctl_name = 0 }
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};
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static ctl_table ipv6_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 = ipv6_net_table
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},
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{ .ctl_name = 0 }
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};
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void ipv6_sysctl_register(void)
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{
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ipv6_sysctl_header = register_sysctl_table(ipv6_root_table);
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}
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void ipv6_sysctl_unregister(void)
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{
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unregister_sysctl_table(ipv6_sysctl_header);
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}
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#endif /* CONFIG_SYSCTL */
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