[PATCH 11/23] sysctl kernel: Remove binary sysctl logic

Eric W. Biederman
2009-11-08T12:26:41Z

From: Eric W. Biederman <ebiederm@xmission.com>

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>
---
kernel/sched.c | 5 ++---
kernel/slow-work.c | 5 +----
kernel/utsname_sysctl.c | 31 -------------------------------
3 files changed, 3 insertions(+), 38 deletions(-)

diff --git a/kernel/sched.c b/kernel/sched.c
index a455dca..dbb99d7 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -7373,17 +7373,16 @@ static struct ctl_table sd_ctl_dir[] = {
.procname = "sched_domain",
.mode = 0555,
},
- {0, },
+ {}
};

static struct ctl_table sd_ctl_root[] = {
{
- .ctl_name = CTL_KERN,
.procname = "kernel",
.mode = 0555,
.child = sd_ctl_dir,
},
- {0, },
+ {}
};

static struct ctl_table *sd_alloc_ctl_entry(int n)
diff --git a/kernel/slow-work.c b/kernel/slow-work.c
index 0d31135..0134b15 100644
--- a/kernel/slow-work.c
+++ b/kernel/slow-work.c
@@ -52,7 +52,6 @@ static const int slow_work_max_vslow = 99;

ctl_table slow_work_sysctls[] = {
{
- .ctl_name = CTL_UNNUMBERED,
.procname = "min-threads",
.data = &slow_work_min_threads,
.maxlen = sizeof(unsigned),
@@ -62,7 +61,6 @@ ctl_table slow_work_sysctls[] = {
.extra2 = &slow_work_max_threads,
},
{
- .ctl_name = CTL_UNNUMBERED,
.procname = "max-threads",
.data = &slow_work_max_threads,
.maxlen = sizeof(unsigned),
@@ -72,7 +70,6 @@ ctl_table slow_work_sysctls[] = {
.extra2 = (void *) &slow_work_max_max_threads,
},
{
- .ctl_name = CTL_UNNUMBERED,
.procname = "vslow-percentage",
.data = &vslow_work_proportion,
.maxlen = sizeof(unsigned),
@@ -81,7 +78,7 @@ ctl_table slow_work_sysctls[] = {
.extra1 = (void *) &slow_work_min_vslow,
.extra2 = (void *) &slow_work_max_vslow,
},
- { .ctl_name = 0 }
+ {}
};
#endif

diff --git a/kernel/utsname_sysctl.c b/kernel/utsname_sysctl.c
index 69eae35..a2cd77e 100644
--- a/kernel/utsname_sysctl.c
+++ b/kernel/utsname_sysctl.c
@@ -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,
--
1.6.5.2.143.g8cc62