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sysctl kernel: Remove binary sysctl logic

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Now that sys_sysctl is a generic wrapper around /proc/sys  .ctl_name
and .strategy members of sysctl tables are dead code.  Remove them.

Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman
2009-11-05 15:38:40 -08:00
parent ab09203e30
commit 56992309cc
3 changed files with 3 additions and 38 deletions
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31
kernel/utsname_sysctl.c
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@@ -57,78 +57,47 @@ static int proc_do_uts_string(ctl_table *table, int write,
#define proc_do_uts_string NULL
#endif
#ifdef CONFIG_SYSCTL_SYSCALL
/* The generic string strategy routine: */
static int sysctl_uts_string(ctl_table *table,
void __user *oldval, size_t __user *oldlenp,
void __user *newval, size_t newlen)
{
struct ctl_table uts_table;
int r, write;
write = newval && newlen;
memcpy(&uts_table, table, sizeof(uts_table));
uts_table.data = get_uts(table, write);
r = sysctl_string(&uts_table, oldval, oldlenp, newval, newlen);
put_uts(table, write, uts_table.data);
return r;
}
#else
#define sysctl_uts_string NULL
#endif
static struct ctl_table uts_kern_table[] = {
{
.ctl_name = KERN_OSTYPE,
.procname = "ostype",
.data = init_uts_ns.name.sysname,
.maxlen = sizeof(init_uts_ns.name.sysname),
.mode = 0444,
.proc_handler = proc_do_uts_string,
.strategy = sysctl_uts_string,
},
{
.ctl_name = KERN_OSRELEASE,
.procname = "osrelease",
.data = init_uts_ns.name.release,
.maxlen = sizeof(init_uts_ns.name.release),
.mode = 0444,
.proc_handler = proc_do_uts_string,
.strategy = sysctl_uts_string,
},
{
.ctl_name = KERN_VERSION,
.procname = "version",
.data = init_uts_ns.name.version,
.maxlen = sizeof(init_uts_ns.name.version),
.mode = 0444,
.proc_handler = proc_do_uts_string,
.strategy = sysctl_uts_string,
},
{
.ctl_name = KERN_NODENAME,
.procname = "hostname",
.data = init_uts_ns.name.nodename,
.maxlen = sizeof(init_uts_ns.name.nodename),
.mode = 0644,
.proc_handler = proc_do_uts_string,
.strategy = sysctl_uts_string,
},
{
.ctl_name = KERN_DOMAINNAME,
.procname = "domainname",
.data = init_uts_ns.name.domainname,
.maxlen = sizeof(init_uts_ns.name.domainname),
.mode = 0644,
.proc_handler = proc_do_uts_string,
.strategy = sysctl_uts_string,
},
{}
};
static struct ctl_table uts_root_table[] = {
{
.ctl_name = CTL_KERN,
.procname = "kernel",
.mode = 0555,
.child = uts_kern_table,