From dfb4357da6ddbdf57d583ba64361c9d792b0e0b1 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 8 Feb 2017 11:26:59 -0800 Subject: 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 Signed-off-by: Kees Cook Acked-by: John Stultz Cc: Nicolas Pitre Cc: linux-doc@vger.kernel.org Cc: Lai Jiangshan Cc: Shuah Khan Cc: Xing Gao Cc: Jonathan Corbet Cc: Jessica Frazelle Cc: kernel-hardening@lists.openwall.com Cc: Nicolas Iooss Cc: "Paul E. McKenney" Cc: Petr Mladek Cc: Richard Cochran Cc: Tejun Heo Cc: Michal Marek Cc: Josh Poimboeuf Cc: Dmitry Vyukov Cc: Oleg Nesterov Cc: "Eric W. Biederman" Cc: Olof Johansson Cc: Andrew Morton Cc: linux-api@vger.kernel.org Cc: Arjan van de Ven Link: http://lkml.kernel.org/r/20170208192659.GA32582@beast Signed-off-by: Thomas Gleixner --- kernel/time/Makefile | 1 - 1 file changed, 1 deletion(-) (limited to 'kernel/time/Makefile') diff --git a/kernel/time/Makefile b/kernel/time/Makefile index 976840d29a71..938dbf33ef49 100644 --- a/kernel/time/Makefile +++ b/kernel/time/Makefile @@ -15,6 +15,5 @@ ifeq ($(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST),y) endif obj-$(CONFIG_GENERIC_SCHED_CLOCK) += sched_clock.o obj-$(CONFIG_TICK_ONESHOT) += tick-oneshot.o tick-sched.o -obj-$(CONFIG_TIMER_STATS) += timer_stats.o obj-$(CONFIG_DEBUG_FS) += timekeeping_debug.o obj-$(CONFIG_TEST_UDELAY) += test_udelay.o -- cgit v1.2.3