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>
53 lines
1,012 B
C
53 lines
1,012 B
C
/*
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* Copyright (C) 2003 Christoph Hellwig.
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* Released under GPL v2.
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*/
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/sysctl.h>
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#include "scsi_logging.h"
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static ctl_table scsi_table[] = {
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{ .ctl_name = DEV_SCSI_LOGGING_LEVEL,
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.procname = "logging_level",
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.data = &scsi_logging_level,
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.maxlen = sizeof(scsi_logging_level),
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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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static ctl_table scsi_dir_table[] = {
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{ .ctl_name = DEV_SCSI,
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.procname = "scsi",
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.mode = 0555,
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.child = scsi_table },
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{ }
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};
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static ctl_table scsi_root_table[] = {
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{ .ctl_name = CTL_DEV,
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.procname = "dev",
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.mode = 0555,
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.child = scsi_dir_table },
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{ }
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};
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static struct ctl_table_header *scsi_table_header;
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int __init scsi_init_sysctl(void)
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{
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scsi_table_header = register_sysctl_table(scsi_root_table);
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if (!scsi_table_header)
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return -ENOMEM;
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return 0;
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}
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void scsi_exit_sysctl(void)
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{
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unregister_sysctl_table(scsi_table_header);
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}
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