kernel_optimize_test/kernel
Eric W. Biederman d99f160ac5 [PATCH] sysctl: allow a zero ctl_name in the middle of a sysctl table
Since it is becoming clear that there are just enough users of the binary
sysctl interface that completely removing the binary interface from the kernel
will not be an option for foreseeable future, we need to find a way to address
the sysctl maintenance issues.

The basic problem is that sysctl requires one central authority to allocate
sysctl numbers, or else conflicts and ABI breakage occur.  The proc interface
to sysctl does not have that problem, as names are not densely allocated.

By not terminating a sysctl table until I have neither a ctl_name nor a
procname, it becomes simple to add sysctl entries that don't show up in the
binary sysctl interface.  Which allows people to avoid allocating a binary
sysctl value when not needed.

I have audited the kernel code and in my reading I have not found a single
sysctl table that wasn't terminated by a completely zero filled entry.  So
this change in behavior should not affect anything.

I think this mechanism eases the pain enough that combined with a little
disciple we can solve the reoccurring sysctl ABI breakage.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-06 01:46:23 -08:00
..
irq [PATCH] genirq: clean up irq-flow-type naming 2006-10-17 08:18:45 -07:00
power [PATCH] swsusp: debugging 2006-11-03 12:27:58 -08:00
time [PATCH] time_adjust cleared before use 2006-10-28 11:30:55 -07:00
.gitignore
acct.c
audit.c [PATCH] kauditd_thread warning fix 2006-10-06 08:53:39 -07:00
audit.h
auditfilter.c
auditsc.c
capability.c
compat.c [PATCH] Create compat_sys_migrate_pages 2006-11-03 12:27:59 -08:00
configs.c
cpu.c [PATCH] Fix the spurious unlock_cpu_hotplug false warnings 2006-11-06 01:46:22 -08:00
cpuset.c [PATCH] cpuset ANSI prototype 2006-10-10 15:37:23 -07:00
delayacct.c [PATCH] lockdep: fix delayacct locking bug 2006-11-06 01:46:23 -08:00
dma.c
exec_domain.c
exit.c [PATCH] taskstats_tgid_free: fix usage 2006-10-28 11:30:54 -07:00
extable.c
fork.c [PATCH] taskstats: kill ->taskstats_lock in favor of ->siglock 2006-10-28 11:30:54 -07:00
futex_compat.c [PATCH] __user annotations: futex 2006-10-10 15:37:22 -07:00
futex.c [PATCH] schedule removal of FUTEX_FD 2006-11-03 12:27:58 -08:00
hrtimer.c
itimer.c
kallsyms.c
Kconfig.hz
Kconfig.preempt
kexec.c
kfifo.c
kmod.c
kprobes.c
ksysfs.c
kthread.c
latency.c
lockdep_internals.h
lockdep_proc.c
lockdep.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2006-10-17 08:56:43 -07:00
Makefile
module.c [PATCH] ndiswrapper: don't set the module->taints flags 2006-10-30 12:08:40 -08:00
mutex-debug.c Lockdep: add lockdep_set_class_and_subclass() and lockdep_set_subclass() 2006-10-11 01:45:14 -04:00
mutex-debug.h
mutex.c
mutex.h
nsproxy.c [PATCH] kernel/nsproxy.c: use kmemdup() 2006-10-20 10:26:44 -07:00
panic.c
params.c
pid.c
posix-cpu-timers.c [PATCH] posix-cpu-timers: prevent signal delivery starvation 2006-10-17 08:18:43 -07:00
posix-timers.c
printk.c [PATCH] Add printk_timed_ratelimit() 2006-11-03 12:27:58 -08:00
profile.c [PATCH] bitmap: parse input from kernel and user buffers 2006-10-11 11:14:22 -07:00
ptrace.c
rcupdate.c
rcutorture.c
relay.c [PATCH] make kernel/relay.c __user-clean 2006-10-10 15:37:22 -07:00
resource.c
rtmutex_common.h
rtmutex-debug.c
rtmutex-debug.h
rtmutex-tester.c
rtmutex.c
rtmutex.h
rwsem.c
sched.c [PATCH] readjust comments of task_timeslice for kernel doc 2006-10-20 10:26:37 -07:00
seccomp.c
signal.c Make sure "user->sigpending" count is in sync 2006-11-04 13:03:00 -08:00
softirq.c
softlockup.c
spinlock.c
srcu.c
stacktrace.c
stop_machine.c
sys_ni.c [PATCH] Create compat_sys_migrate_pages 2006-11-03 12:27:59 -08:00
sys.c
sysctl.c [PATCH] sysctl: allow a zero ctl_name in the middle of a sysctl table 2006-11-06 01:46:23 -08:00
taskstats.c [PATCH] taskstats: fix sub-threads accounting 2006-10-31 08:07:00 -08:00
time.c
timer.c
tsacct.c [PATCH] xacct_add_tsk: fix pure theoretical ->mm use-after-free 2006-10-30 12:08:41 -08:00
uid16.c
unwind.c [PATCH] x86-64: Speed up dwarf2 unwinder 2006-10-21 18:37:01 +02:00
user.c Fix unlikely (but possible) race condition on task->user access 2006-11-04 10:06:02 -08:00
utsname.c
wait.c
workqueue.c [PATCH] workqueue: update kerneldoc 2006-10-28 11:30:55 -07:00