linux/kernel/time
Kees Cook dfb4357da6 time: Remove CONFIG_TIMER_STATS
Currently CONFIG_TIMER_STATS exposes process information across namespaces:

kernel/time/timer_list.c print_timer():

        SEQ_printf(m, ", %s/%d", tmp, timer->start_pid);

/proc/timer_list:

 #11: <0000000000000000>, hrtimer_wakeup, S:01, do_nanosleep, cron/2570

Given that the tracer can give the same information, this patch entirely
removes CONFIG_TIMER_STATS.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: John Stultz <john.stultz@linaro.org>
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: linux-doc@vger.kernel.org
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Xing Gao <xgao01@email.wm.edu>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Jessica Frazelle <me@jessfraz.com>
Cc: kernel-hardening@lists.openwall.com
Cc: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Michal Marek <mmarek@suse.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Olof Johansson <olof@lixom.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-api@vger.kernel.org
Cc: Arjan van de Ven <arjan@linux.intel.com>
Link: http://lkml.kernel.org/r/20170208192659.GA32582@beast
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-02-10 11:15:08 +01:00
..
alarmtimer.c ktime: Cleanup ktime_set() usage 2016-12-25 17:21:22 +01:00
clockevents.c ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
clocksource.c clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
hrtimer.c time: Remove CONFIG_TIMER_STATS 2017-02-10 11:15:08 +01:00
itimer.c ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
jiffies.c clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
Kconfig rcu: Drop RCU_USER_QS in favor of NO_HZ_FULL 2015-07-06 13:52:18 -07:00
Makefile time: Remove CONFIG_TIMER_STATS 2017-02-10 11:15:08 +01:00
ntp_internal.h ntp: Fix second_overflow's input parameter type to be 64bits 2015-12-16 16:50:56 -08:00
ntp.c ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
posix-clock.c posix-clock: Fix return code on the poll method's error path 2015-12-29 11:33:06 +01:00
posix-cpu-timers.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
posix-stubs.c posix-timers: Make them configurable 2016-11-16 09:26:35 +01:00
posix-timers.c ktime: Cleanup ktime_set() usage 2016-12-25 17:21:22 +01:00
sched_clock.c timers, sched/clock: Clean up the code a bit 2015-03-27 08:34:01 +01:00
test_udelay.c time: Avoid timespec in udelay_test 2016-06-20 12:47:26 -07:00
tick-broadcast-hrtimer.c ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
tick-broadcast.c tick/broadcast: Reduce lock cacheline contention 2017-02-04 08:54:46 +01:00
tick-common.c ktime: Cleanup ktime_set() usage 2016-12-25 17:21:22 +01:00
tick-internal.h timers: Forward the wheel clock whenever possible 2016-07-07 10:35:11 +02:00
tick-oneshot.c ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
tick-sched.c ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
tick-sched.h timers/nohz: Convert tick dependency mask to atomic_t 2016-03-29 11:52:11 +02:00
time.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
timeconst.bc timeconst: Update path in comment 2015-10-26 10:06:06 +09:00
timeconv.c time: Add time64_to_tm() 2016-06-20 12:47:15 -07:00
timecounter.c clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
timekeeping_debug.c timekeeping: Prints the amounts of time spent during suspend 2016-08-31 14:43:34 -07:00
timekeeping_internal.h clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
timekeeping.c timekeeping: Remove unused timekeeping_{get,set}_tai_offset() 2017-01-06 16:47:28 -08:00
timekeeping.h timekeeping: Remove unused timekeeping_{get,set}_tai_offset() 2017-01-06 16:47:28 -08:00
timer_list.c time: Remove CONFIG_TIMER_STATS 2017-02-10 11:15:08 +01:00
timer.c time: Remove CONFIG_TIMER_STATS 2017-02-10 11:15:08 +01:00